diff --git a/README.md b/README.md index d503b62dc7765cfa0fac5b9129ab295809a58c22..68c1afd7fcc4ff3d3c238b3055b2286cde064906 100644 --- a/README.md +++ b/README.md @@ -11,7 +11,7 @@ pinned: false # ⏱️ 项目五（全新制作）：SOLANA —— 给区块链装上时钟的人（solana-clock/） -> 用一支 **约 5 分钟** 的网页动画视频，讲完 Solana / SOL 从 2017 年一个深夜的灵感，到 2026 年的完整发展历程。 +> 用一支 **约 6.5 分钟** 的网页动画视频，讲完 Solana / SOL 从 2017 年一个深夜的灵感，到 2026 年的完整发展历程。 > **全新制作**：文案、分镜、画面代码、音乐、音效、旁白全部从零编写，**不参考**仓库中任何旧目录（包括旧的 `solana/`）。 > 新作品全部位于 **`solana-clock/`** 目录，打开 `solana-clock/index.html` 即可播放。 @@ -20,8 +20,8 @@ pinned: false | # | 阶段 | 状态 | |---|------|------| | 1 | 写计划 / 大纲 / 步骤（本节） | ✅ 完成 | -| 2 | 旁白文案定稿 + TTS 配音 + 时长清单 + 字体子集 + SOL 真实价格数据 | ⏳ 进行中 | -| 3 | 动画引擎 + 全部场景（横屏 16:9 / 竖屏 9:16 双布局 + 烧录字幕 + 安全区） | ⬜ 待做 | +| 2 | 旁白文案定稿（15 场景 / 72 句）+ TTS 配音（纯语音 370 秒）+ 时长清单 + SOL 真实价格数据（2372 个日线点） | ✅ 完成 | +| 3 | 动画引擎 + 全部场景（横屏 16:9 / 竖屏 9:16 双布局 + 烧录字幕 + 安全区） | ⏳ 进行中 | | 4 | 程序化音乐 + 合成音效 + 旁白闪避混音 | ⬜ 待做 | | 5 | 播放器 UI + 浏览器本地 MP4 导出（24 / 30 / 60 fps，横屏 / 竖屏） | ⬜ 待做 | | 6 | 抖音 / B站 发布标题、简介、标签（一键复制） | ⬜ 待做 | @@ -39,7 +39,7 @@ pinned: false 视觉风格：**深空霓虹 + 数据可视化**。Solana 品牌渐变（紫 #9945FF → 青绿 #14F195）， 发光粒子、哈希光链、等距节点网络、真实价格曲线动画、故障风（宕机）、碎裂坍塌（FTX）、凤凰式重生（2023）、烟花（ATH）。 -## 2. 分镜大纲（15 个场景，约 5 分钟） +## 2. 分镜大纲（15 个场景，约 6.5 分钟） | # | 场景 ID | 时间点 | 内容 | 关键画面 | 音乐情绪 | |---|---|---|---|---|---| diff --git a/index.html b/index.html index c5af66fd5544ea7fa53b37e6056e52fbadb3fbb8..547eb05ed9f8856fa3311c03866b87579bd9d9aa 100644 --- a/index.html +++ b/index.html @@ -12,7 +12,7 @@ a.card div{padding:14px 16px}a.card b{font-size:19px}a.card span{display:block;o

知识动画工作室

网页即播 · 浏览器本地导出 MP4 · 横屏 B站 / 竖屏抖音

-SOLANA 给区块链装上时钟的人
⏱️ SOLANA：给区块链装上时钟的人2017 → 2026 · 全新制作 · 时间之链霓虹风 · 约 5 分钟
 +SOLANA 给区块链装上时钟的人
⏱️ SOLANA：给区块链装上时钟的人2017 → 2026 · 全新制作 · 时间之链霓虹风 · 约 6.5 分钟
 以太坊简史
⟠ 以太坊简史：从一份白皮书到世界计算机2013 → 2026 · 深空光之晶体风格 · 约 7 分钟
 国足投注模拟器
⚽ 国足投注模拟器：每场押 ¥100，23 年后还剩多少？2002 → 2026.10 · 149 场正式比赛 + 8 场友谊赛彩蛋 · 8-bit 像素街机风 · 约 5 分 50 秒 · 数据模拟，远离赌博
 收猴子的故事
🐒 收猴子的故事经济学寓言 · 手绘涂鸦风格 · 6 分 22 秒
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+++ b/solana-clock/audio/rebuild-03.mp3.json @@ -0,0 +1 @@ +{"h": "9e49940713f10faca104b0674f3627ba"} \ No newline at end of file diff --git a/solana-clock/audio/rebuild-04.mp3 b/solana-clock/audio/rebuild-04.mp3 new file mode 100644 index 0000000000000000000000000000000000000000..44afd9581db07774d8394d94bd3198d3bba7f4e8 Binary files /dev/null and b/solana-clock/audio/rebuild-04.mp3 differ diff --git a/solana-clock/audio/rebuild-04.mp3.json b/solana-clock/audio/rebuild-04.mp3.json new file mode 100644 index 0000000000000000000000000000000000000000..37e0f9d7f8e6d8f0ea1fe30dabbbb2cc4565d03c --- /dev/null +++ b/solana-clock/audio/rebuild-04.mp3.json @@ -0,0 +1 @@ +{"h": "581064a40bd76a12354d78aa441cf362"} \ No newline at end of file diff --git a/solana-clock/audio/rebuild-05.mp3 b/solana-clock/audio/rebuild-05.mp3 new file mode 100644 index 0000000000000000000000000000000000000000..4919538357a90d96a7e724799cbbad58d06b659d Binary files /dev/null and b/solana-clock/audio/rebuild-05.mp3 differ diff --git a/solana-clock/audio/rebuild-05.mp3.json b/solana-clock/audio/rebuild-05.mp3.json new file mode 100644 index 0000000000000000000000000000000000000000..5a8a4a933ae0262312fdcecfebfc9b25573e40f6 --- /dev/null +++ b/solana-clock/audio/rebuild-05.mp3.json @@ -0,0 +1 @@ +{"h": "33d60560207ce9ccd12906aa416cdc27"} \ No newline at end of file diff --git a/solana-clock/audio/rise-00.mp3 b/solana-clock/audio/rise-00.mp3 new file mode 100644 index 0000000000000000000000000000000000000000..1879dcf3046304d66d2b71c7d18f0b5f8897d396 Binary files /dev/null and b/solana-clock/audio/rise-00.mp3 differ diff --git a/solana-clock/audio/rise-00.mp3.json b/solana-clock/audio/rise-00.mp3.json new file mode 100644 index 0000000000000000000000000000000000000000..2e76e84ca7ef69dbdaac386b64a837f49b929af5 --- /dev/null +++ b/solana-clock/audio/rise-00.mp3.json @@ -0,0 +1 @@ +{"h": "a1f3930c53e7cdc9ecc543be907244a3"} \ No newline at end of file diff --git a/solana-clock/audio/rise-01.mp3 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--- /dev/null +++ b/solana-clock/audio/rise-02.mp3.json @@ -0,0 +1 @@ +{"h": "54181809b64dfe7a5c3af7902bf5b0f5"} \ No newline at end of file diff --git a/solana-clock/audio/rise-03.mp3 b/solana-clock/audio/rise-03.mp3 new file mode 100644 index 0000000000000000000000000000000000000000..51c9c02f5e502583ecf600f04c22731f464272a7 Binary files /dev/null and b/solana-clock/audio/rise-03.mp3 differ diff --git a/solana-clock/audio/rise-03.mp3.json b/solana-clock/audio/rise-03.mp3.json new file mode 100644 index 0000000000000000000000000000000000000000..e4940e08c7ee60e1061184687cd12b4e9dc3ec92 --- /dev/null +++ b/solana-clock/audio/rise-03.mp3.json @@ -0,0 +1 @@ +{"h": "d81f0c678809a4b3ce6b3b1f2f37edf1"} \ No newline at end of file diff --git a/solana-clock/audio/rise-04.mp3 b/solana-clock/audio/rise-04.mp3 new file mode 100644 index 0000000000000000000000000000000000000000..ce006a3043505c583287206072d27d0fbf93e18e Binary files /dev/null and b/solana-clock/audio/rise-04.mp3 differ diff --git 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file mode 100644 index 0000000000000000000000000000000000000000..520dddb83644de8bf6d8e8c09d84b8e6df33650d Binary files /dev/null and b/solana-clock/audio/wall-01.mp3 differ diff --git a/solana-clock/audio/wall-01.mp3.json b/solana-clock/audio/wall-01.mp3.json new file mode 100644 index 0000000000000000000000000000000000000000..35016ec3f5f83835234d42f787ae844990e0a1a7 --- /dev/null +++ b/solana-clock/audio/wall-01.mp3.json @@ -0,0 +1 @@ +{"h": "22ecb58cadf717010f7a5cebdc43aceb"} \ No newline at end of file diff --git a/solana-clock/audio/wall-02.mp3 b/solana-clock/audio/wall-02.mp3 new file mode 100644 index 0000000000000000000000000000000000000000..ba3e509550a3755703d772b6fabd7e11d451c6e1 Binary files /dev/null and b/solana-clock/audio/wall-02.mp3 differ diff --git a/solana-clock/audio/wall-02.mp3.json b/solana-clock/audio/wall-02.mp3.json new file mode 100644 index 0000000000000000000000000000000000000000..ec2703c65ef7e2cafe81b062a4883e5a57231295 --- /dev/null +++ b/solana-clock/audio/wall-02.mp3.json @@ -0,0 +1 @@ +{"h": "cf370f4234980955df1cfafc31d65c74"} \ No newline at end of file diff --git a/solana-clock/audio/wall-03.mp3 b/solana-clock/audio/wall-03.mp3 new file mode 100644 index 0000000000000000000000000000000000000000..a781bb19c70ab13259a6bdc394f8950330fef1e5 Binary files /dev/null and b/solana-clock/audio/wall-03.mp3 differ diff --git a/solana-clock/audio/wall-03.mp3.json b/solana-clock/audio/wall-03.mp3.json new file mode 100644 index 0000000000000000000000000000000000000000..1aa4a874ff023a48bdd3a25ff243d338f6a8e1cf --- /dev/null +++ b/solana-clock/audio/wall-03.mp3.json @@ -0,0 +1 @@ +{"h": "636fa9fe10f651471018f0430722602b"} \ No newline at end of file diff --git a/solana-clock/js/data-sol.js b/solana-clock/js/data-sol.js new file mode 100644 index 0000000000000000000000000000000000000000..9d1bc5a73d19453317c849627f8fb330bc7e45e5 --- /dev/null +++ b/solana-clock/js/data-sol.js @@ -0,0 +1,5 @@ +// SOL/USD daily close — snapshot from Surf data API (market-price, symbol=SOL, time_range=max) +// 2020-04-10 → 2026-10-07, 2372 points, one per day. +export const SOL_START = "2020-04-10"; +export const SOL_T0 = 1586476800; +export const SOL_PRICES = 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diff --git a/solana-clock/js/script-data.js b/solana-clock/js/script-data.js new file mode 100644 index 0000000000000000000000000000000000000000..c33b57e7a69234b7f009311a7d55fcc7ec7ffe4e --- /dev/null +++ b/solana-clock/js/script-data.js @@ -0,0 +1,470 @@ +// AUTO-GENERATED by tools/build_voice.py — narration text + measured durations +export const SCRIPT = [ + { + "id": "hook", + "chapter": "开场", + "year": "", + "lines": [ + { + "t": "每秒几千笔交易，四百毫秒出一个块，手续费不到一分钱。", + "key": "hook-00", + "dur": 5.184 + }, + { + "t": "这条链，凭什么跑得这么快？", + "key": "hook-01", + "dur": 3.12 + }, + { + "t": "又凭什么，摔得那么惨，还能一次次爬回来？", + "key": "hook-02", + "dur": 4.344 + }, + { + "t": "今天，我们从头讲一讲，Solana 的前世今生。", + "key": "hook-03", + "dur": 4.224 + } + ] + }, + { + "id": "night", + "chapter": "一个深夜的念头", + "year": "2017", + "lines": [ + { + "t": "故事要从 2017 年 11 月的一个深夜说起。", + "key": "night-00", + "dur": 3.696 + }, + { + "t": "加州圣地亚哥，一个叫 Anatoly Yakovenko 的工程师还没睡。", + "key": "night-01", + "dur": 5.064 + }, + { + "t": "他在高通干了十几年，天天和压缩算法、分布式系统打交道。", + "key": "night-02", + "dur": 5.544 + }, + { + "t": "那天晚上，两杯咖啡，加一杯啤酒，他突然冒出一个念头——", + "key": "night-03", + "dur": 5.688 + }, + { + "t": "如果，给区块链装上一个时钟呢？", + "key": "night-04", + "dur": 3.384 + } + ] + }, + { + "id": "poh", + "chapter": "历史证明", + "year": "2017", + "lines": [ + { + "t": "要理解这个念头有多重要，先想一个问题。", + "key": "poh-00", + "dur": 3.984 + }, + { + "t": "区块链里成千上万台电脑，没有一块共同的表。", + "key": "poh-01", + "dur": 4.512 + }, + { + "t": "谁先谁后，全靠互相发消息、反复确认，就像一场没有钟的会议，每件事都要先问一圈。", + "key": "poh-02", + "dur": 8.184 + }, + { + "t": "Anatoly 的办法叫「历史证明」：让一台机器不停地做 SHA-256 哈希，", + "key": "poh-03", + "dur": 6.144 + }, + { + "t": "上一次的结果，就是下一次的输入，一环扣一环，谁也跳不过，谁也造不了假。", + "key": "poh-04", + "dur": 6.864 + }, + { + "t": "任何交易插进这条链，就自带了一个改不掉的时间戳。", + "key": "poh-05", + "dur": 4.584 + }, + { + "t": "大家不用再开会对表，各干各的，速度一下子就上去了。", + "key": "poh-06", + "dur": 4.968 + } + ] + }, + { + "id": "name", + "chapter": "从 Loom 到 Solana", + "year": "2018", + "lines": [ + { + "t": "项目最早叫 Loom，可惜，和另一个区块链项目撞了名。", + "key": "name-00", + "dur": 4.92 + }, + { + "t": "2018 年，团队把名字改成了 Solana。", + "key": "name-01", + "dur": 4.056 + }, + { + "t": "这个名字，来自圣地亚哥北边的海滨小镇 Solana Beach，", + "key": "name-02", + "dur": 4.968 + }, + { + "t": "早期的几位创始人曾在那里生活，一边写代码，一边冲浪。", + "key": "name-03", + "dur": 5.352 + } + ] + }, + { + "id": "build", + "chapter": "组队", + "year": "2018", + "lines": [ + { + "t": "Anatoly 拉来了高通的老同事 Greg Fitzgerald 和 Stephen Akridge，", + "key": "build-00", + "dur": 5.64 + }, + { + "t": "又和做产品与增长的 Raj Gokal 搭档，凑齐了核心团队。", + "key": "build-01", + "dur": 4.92 + }, + { + "t": "2018 年，测试网跑了起来；", + "key": "build-02", + "dur": 3.096 + }, + { + "t": "2019 年，Multicoin Capital 领投了两千万美元的 A 轮融资。", + "key": "build-03", + "dur": 5.376 + }, + { + "t": "万事俱备，只差主网。", + "key": "build-04", + "dur": 3.0 + } + ] + }, + { + "id": "mainnet", + "chapter": "逆风上线", + "year": "2020", + "lines": [ + { + "t": "可主网上线的时机，简直糟糕透顶。", + "key": "mainnet-00", + "dur": 3.648 + }, + { + "t": "2020 年 3 月 12 日，全球市场恐慌暴跌，比特币两天之内几乎腰斩，币圈管这一天叫「312」。", + "key": "mainnet-01", + "dur": 8.472 + }, + { + "t": "就在四天之后，3 月 16 日，Solana 主网 Beta 版顶着寒风上线。", + "key": "mainnet-02", + "dur": 5.688 + }, + { + "t": "第一个区块诞生的时候，没人想到，这条链会在一年后点燃整个市场。", + "key": "mainnet-03", + "dur": 6.048 + } + ] + }, + { + "id": "rise", + "chapter": "狂飙", + "year": "2021", + "lines": [ + { + "t": "2021 年，牛市来了。", + "key": "rise-00", + "dur": 2.712 + }, + { + "t": "订单簿交易所 Serum、自动做市商 Raydium、钱包 Phantom、NFT 市场 Magic Eden，一个接一个冒了出来。", + "key": "rise-01", + "dur": 8.856 + }, + { + "t": "又快又便宜，无数开发者和玩家涌了进来。", + "key": "rise-02", + "dur": 4.176 + }, + { + "t": "SOL 的价格，从年初的一块五美元，一路涨到 11 月的 259 美元。", + "key": "rise-03", + "dur": 5.712 + }, + { + "t": "一年，一百七十倍。", + "key": "rise-04", + "dur": 2.496 + } + ] + }, + { + "id": "outage", + "chapter": "宕机", + "year": "2021", + "lines": [ + { + "t": "可是，速度是有代价的。", + "key": "outage-00", + "dur": 2.904 + }, + { + "t": "2021 年 9 月 14 日，一个新项目发售，机器人疯狂刷单，网络被垃圾交易彻底淹没。", + "key": "outage-01", + "dur": 7.416 + }, + { + "t": "Solana 网络中断约十七个小时，验证者紧急协调重启。", + "v": "news", + "key": "outage-02", + "dur": 5.352 + }, + { + "t": "接下来的一年里，宕机又发生了好几次。", + "key": "outage-03", + "dur": 3.816 + }, + { + "t": "「Solana 又宕机了」，成了整个圈子最爱讲的段子。", + "key": "outage-04", + "dur": 4.152 + } + ] + }, + { + "id": "ftx", + "chapter": "至暗时刻", + "year": "2022", + "lines": [ + { + "t": "而真正的寒冬，在 2022 年 11 月到来。", + "key": "ftx-00", + "dur": 3.888 + }, + { + "t": "曾经的头部加密交易所 FTX，申请破产保护。", + "v": "news", + "key": "ftx-01", + "dur": 4.8 + }, + { + "t": "FTX 和它的姊妹公司 Alameda，是 Solana 最大的支持者之一，手里握着大量 SOL。", + "key": "ftx-02", + "dur": 7.104 + }, + { + "t": "大厦倒塌，信心崩盘。SOL 从 11 月初的三十多美元，一路跌到年底的九块六。", + "key": "ftx-03", + "dur": 7.44 + }, + { + "t": "从最高点算，跌去了超过百分之九十六。", + "key": "ftx-04", + "dur": 4.08 + }, + { + "t": "那时候，很多人都说：Solana 死了。", + "key": "ftx-05", + "dur": 3.504 + } + ] + }, + { + "id": "rebuild", + "chapter": "灰烬重生", + "year": "2023", + "lines": [ + { + "t": "但一条链真正的生命力，不在价格，而在人。", + "key": "rebuild-00", + "dur": 4.56 + }, + { + "t": "Serum 的代码被社区分叉成 OpenBook，交易照常继续；", + "key": "rebuild-01", + "dur": 5.04 + }, + { + "t": "圣诞节，一个叫 BONK 的狗狗币空投给了社区，冷清的链上突然热闹起来。", + "key": "rebuild-02", + "dur": 6.408 + }, + { + "t": "Jump 团队从零开发的第二个验证者客户端 Firedancer，让人看到了百万 TPS 的可能；", + "key": "rebuild-03", + "dur": 7.248 + }, + { + "t": "状态压缩让铸造一百万个 NFT 只要一百多美元，Helium 把整个网络迁了过来，Solana 还推出了自己的手机 Saga。", + "key": "rebuild-04", + "dur": 10.032 + }, + { + "t": "2023 年底，SOL 回到了一百美元，一年涨了十倍。", + "key": "rebuild-05", + "dur": 5.04 + } + ] + }, + { + "id": "meme", + "chapter": "Meme 主场", + "year": "2024", + "lines": [ + { + "t": "2024 年，Solana 成了 Meme 的主场。", + "key": "meme-00", + "dur": 3.768 + }, + { + "t": "年初，Jupiter 向近百万个地址发放空投；", + "key": "meme-01", + "dur": 4.296 + }, + { + "t": "一键发币平台 pump.fun 上线，人人都能在几秒钟内发出一个币。", + "key": "meme-02", + "dur": 5.592 + }, + { + "t": "WIF、BONK、POPCAT，一只狗、一顶帽子，就能撬动数十亿美元的市值。", + "key": "meme-03", + "dur": 6.528 + }, + { + "t": "Solana 上去中心化交易所的交易量，多次超过了以太坊。", + "key": "meme-04", + "dur": 4.464 + } + ] + }, + { + "id": "ath", + "chapter": "历史新高", + "year": "2025", + "lines": [ + { + "t": "2025 年 1 月，热潮冲上顶点。", + "key": "ath-00", + "dur": 3.672 + }, + { + "t": "1 月 19 日，SOL 收盘报 262 美元，创下历史新高。", + "key": "ath-01", + "dur": 5.208 + }, + { + "t": "从主网上线初期的几毛钱算起，涨了三百多倍。", + "key": "ath-02", + "dur": 4.512 + } + ] + }, + { + "id": "wall", + "chapter": "华尔街敲门", + "year": "2025", + "lines": [ + { + "t": "这一次，进场的不只是散户。", + "key": "wall-00", + "dur": 3.096 + }, + { + "t": "上市公司开始把 SOL 写进资产负债表；", + "key": "wall-01", + "dur": 3.96 + }, + { + "t": "2025 年 10 月底，美国首批现货 Solana ETF 开始交易，华尔街的大门正式打开。", + "key": "wall-02", + "dur": 7.152 + }, + { + "t": "协议层面，全新的 Alpenglow 共识获得验证者投票通过，目标是把交易最终确认时间，压到一百五十毫秒左右。", + "key": "wall-03", + "dur": 8.808 + } + ] + }, + { + "id": "now", + "chapter": "过山车", + "year": "2026", + "lines": [ + { + "t": "把这六年的价格画成一条线，就是这样一趟过山车。", + "key": "now-00", + "dur": 4.776 + }, + { + "t": "一美元以下起步，两度冲上两百五十美元以上，也曾跌到个位数。", + "key": "now-01", + "dur": 5.568 + }, + { + "t": "进入 2026 年，价格在六十多到一百四十多美元之间反复震荡，", + "key": "now-02", + "dur": 5.904 + }, + { + "t": "截至 2026 年 10 月 7 日，SOL 大约 117 美元。", + "key": "now-03", + "dur": 4.752 + } + ] + }, + { + "id": "outro", + "chapter": "时间会证明", + "year": "", + "lines": [ + { + "t": "回头看，Solana 的第一个发明，是证明时间。", + "key": "outro-00", + "dur": 4.2 + }, + { + "t": "它被嘲笑过、宕机过、被宣判过死刑，又一次次站了起来。", + "key": "outro-01", + "dur": 5.352 + }, + { + "t": "速度，可以靠工程；信任，只能靠时间。", + "key": "outro-02", + "dur": 4.56 + }, + { + "t": "而这条链的历史，还在每四百毫秒，继续往下写。", + "key": "outro-03", + "dur": 4.704 + }, + { + "t": "以上内容仅为科普回顾，不构成任何投资建议。喜欢的话，点赞关注，我们下期见。", + "key": "outro-04", + "dur": 7.944 + } + ] + } +]; diff --git a/solana-clock/tools/build_voice.py b/solana-clock/tools/build_voice.py new file mode 100644 index 0000000000000000000000000000000000000000..726eb121c018ad461ab77861466d53b1d211e243 --- /dev/null +++ b/solana-clock/tools/build_voice.py @@ -0,0 +1,59 @@ +"""Generate narration MP3s with Edge neural TTS and write js/script-data.js (text + exact durations). +Usage: pip install edge-tts mutagen && python3 tools/build_voice.py +""" +import asyncio, hashlib, json, os +import edge_tts +from mutagen.mp3 import MP3 + +HERE = os.path.dirname(os.path.abspath(__file__)) +ROOT = os.path.dirname(HERE) +AUDIO = os.path.join(ROOT, 'audio') +os.makedirs(AUDIO, exist_ok=True) +spec = json.load(open(os.path.join(HERE, 'script.json'), encoding='utf-8')) + + +def speakable(t): + # TTS-friendly text: read "SHA-256" etc. naturally, drop quote brackets + return (t.replace('「', '').replace('」', '').replace('SHA-256', 'SHA 256') + .replace('pump.fun', 'pump fun').replace('TPS', ' T P S ')) + + +async def one(sem, key, text, voice): + path = os.path.join(AUDIO, key + '.mp3') + meta = path + '.json' + h = hashlib.md5((text + json.dumps(voice)).encode()).hexdigest() + if os.path.exists(path) and os.path.exists(meta) and json.load(open(meta)).get('h') == h: + return + async with sem: + for attempt in range(4): + try: + c = edge_tts.Communicate(speakable(text), voice['name'], rate=voice['rate'], pitch=voice['pitch']) + await c.save(path) + break + except Exception as e: # network hiccup → retry + print('retry', key, e) + await asyncio.sleep(2) + json.dump({'h': h}, open(meta, 'w')) + print('tts', key) + + +async def main(): + sem = asyncio.Semaphore(5) + jobs = [] + for s in spec['scenes']: + for i, ln in enumerate(s['lines']): + key = f"{s['id']}-{i:02d}" + ln['key'] = key + jobs.append(one(sem, key, ln['t'], spec['voices'][ln.get('v', 'narr')])) + await asyncio.gather(*jobs) + total = 0 + for s in spec['scenes']: + for ln in s['lines']: + ln['dur'] = round(MP3(os.path.join(AUDIO, ln['key'] + '.mp3')).info.length, 3) + total += ln['dur'] + out = '// AUTO-GENERATED by tools/build_voice.py — narration text + measured durations\nexport const SCRIPT = ' + \ + json.dumps(spec['scenes'], ensure_ascii=False, indent=1) + ';\n' + open(os.path.join(ROOT, 'js', 'script-data.js'), 'w', encoding='utf-8').write(out) + print('lines', sum(len(s['lines']) for s in spec['scenes']), 'speech seconds', round(total, 1)) + +asyncio.run(main()) diff --git a/solana-clock/tools/fetch_price.py b/solana-clock/tools/fetch_price.py new file mode 100644 index 0000000000000000000000000000000000000000..d53944d33be811ce8c48b3d40484e39256fcef3f --- /dev/null +++ b/solana-clock/tools/fetch_price.py @@ -0,0 +1,16 @@ +"""Snapshot SOL daily close prices from the Surf data API (via `surf` CLI) into js/data-sol.js. +Usage: surf market-price --symbol SOL --time-range max -o json > /tmp/solmax.json && python3 tools/fetch_price.py /tmp/solmax.json +""" +import json, sys, os, datetime as D +src = sys.argv[1] if len(sys.argv) > 1 else '/tmp/solmax.json' +pts = json.load(open(src))['data'] +pts.sort(key=lambda p: p['timestamp']) +t0 = pts[0]['timestamp'] +day = lambda t: D.datetime.fromtimestamp(t, D.UTC).strftime('%Y-%m-%d') +vals = [round(p['value'], 3 if p['value'] < 10 else 2) for p in pts] +out = ('// SOL/USD daily close — snapshot from Surf data API (market-price, symbol=SOL, time_range=max)\n' + f'// {day(pts[0]["timestamp"])} → {day(pts[-1]["timestamp"])}, {len(pts)} points, one per day.\n' + f'export const SOL_START = "{day(t0)}";\nexport const SOL_T0 = {t0};\n' + f'export const SOL_PRICES = {json.dumps(vals, separators=(",", ":"))};\n') +open(os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 'js', 'data-sol.js'), 'w').write(out) +print(len(vals), 'points') diff --git a/solana-clock/tools/script.json b/solana-clock/tools/script.json new file mode 100644 index 0000000000000000000000000000000000000000..7ce6aa056b7f53cdcc038a960503f67a77cda18c --- /dev/null +++ b/solana-clock/tools/script.json @@ -0,0 +1,110 @@ +{ + "voices": { + "narr": { "name": "zh-CN-YunxiNeural", "rate": "+6%", "pitch": "+0Hz" }, + "news": { "name": "zh-CN-XiaoxiaoNeural", "rate": "+4%", "pitch": "+0Hz" } + }, + "scenes": [ + { "id": "hook", "chapter": "开场", "year": "", "lines": [ + { "t": "每秒几千笔交易，四百毫秒出一个块，手续费不到一分钱。" }, + { "t": "这条链，凭什么跑得这么快？" }, + { "t": "又凭什么，摔得那么惨，还能一次次爬回来？" }, + { "t": "今天，我们从头讲一讲，Solana 的前世今生。" } + ]}, + { "id": "night", "chapter": "一个深夜的念头", "year": "2017", "lines": [ + { "t": "故事要从 2017 年 11 月的一个深夜说起。" }, + { "t": "加州圣地亚哥，一个叫 Anatoly Yakovenko 的工程师还没睡。" }, + { "t": "他在高通干了十几年，天天和压缩算法、分布式系统打交道。" }, + { "t": "那天晚上，两杯咖啡，加一杯啤酒，他突然冒出一个念头——" }, + { "t": "如果，给区块链装上一个时钟呢？" } + ]}, + { "id": "poh", "chapter": "历史证明", "year": "2017", "lines": [ + { "t": "要理解这个念头有多重要，先想一个问题。" }, + { "t": "区块链里成千上万台电脑，没有一块共同的表。" }, + { "t": "谁先谁后，全靠互相发消息、反复确认，就像一场没有钟的会议，每件事都要先问一圈。" }, + { "t": "Anatoly 的办法叫「历史证明」：让一台机器不停地做 SHA-256 哈希，" }, + { "t": "上一次的结果，就是下一次的输入，一环扣一环，谁也跳不过，谁也造不了假。" }, + { "t": "任何交易插进这条链，就自带了一个改不掉的时间戳。" }, + { "t": "大家不用再开会对表，各干各的，速度一下子就上去了。" } + ]}, + { "id": "name", "chapter": "从 Loom 到 Solana", "year": "2018", "lines": [ + { "t": "项目最早叫 Loom，可惜，和另一个区块链项目撞了名。" }, + { "t": "2018 年，团队把名字改成了 Solana。" }, + { "t": "这个名字，来自圣地亚哥北边的海滨小镇 Solana Beach，" }, + { "t": "早期的几位创始人曾在那里生活，一边写代码，一边冲浪。" } + ]}, + { "id": "build", "chapter": "组队", "year": "2018", "lines": [ + { "t": "Anatoly 拉来了高通的老同事 Greg Fitzgerald 和 Stephen Akridge，" }, + { "t": "又和做产品与增长的 Raj Gokal 搭档，凑齐了核心团队。" }, + { "t": "2018 年，测试网跑了起来；" }, + { "t": "2019 年，Multicoin Capital 领投了两千万美元的 A 轮融资。" }, + { "t": "万事俱备，只差主网。" } + ]}, + { "id": "mainnet", "chapter": "逆风上线", "year": "2020", "lines": [ + { "t": "可主网上线的时机，简直糟糕透顶。" }, + { "t": "2020 年 3 月 12 日，全球市场恐慌暴跌，比特币两天之内几乎腰斩，币圈管这一天叫「312」。" }, + { "t": "就在四天之后，3 月 16 日，Solana 主网 Beta 版顶着寒风上线。" }, + { "t": "第一个区块诞生的时候，没人想到，这条链会在一年后点燃整个市场。" } + ]}, + { "id": "rise", "chapter": "狂飙", "year": "2021", "lines": [ + { "t": "2021 年，牛市来了。" }, + { "t": "订单簿交易所 Serum、自动做市商 Raydium、钱包 Phantom、NFT 市场 Magic Eden，一个接一个冒了出来。" }, + { "t": "又快又便宜，无数开发者和玩家涌了进来。" }, + { "t": "SOL 的价格，从年初的一块五美元，一路涨到 11 月的 259 美元。" }, + { "t": "一年，一百七十倍。" } + ]}, + { "id": "outage", "chapter": "宕机", "year": "2021", "lines": [ + { "t": "可是，速度是有代价的。" }, + { "t": "2021 年 9 月 14 日，一个新项目发售，机器人疯狂刷单，网络被垃圾交易彻底淹没。" }, + { "t": "Solana 网络中断约十七个小时，验证者紧急协调重启。", "v": "news" }, + { "t": "接下来的一年里，宕机又发生了好几次。" }, + { "t": "「Solana 又宕机了」，成了整个圈子最爱讲的段子。" } + ]}, + { "id": "ftx", "chapter": "至暗时刻", "year": "2022", "lines": [ + { "t": "而真正的寒冬，在 2022 年 11 月到来。" }, + { "t": "曾经的头部加密交易所 FTX，申请破产保护。", "v": "news" }, + { "t": "FTX 和它的姊妹公司 Alameda，是 Solana 最大的支持者之一，手里握着大量 SOL。" }, + { "t": "大厦倒塌，信心崩盘。SOL 从 11 月初的三十多美元，一路跌到年底的九块六。" }, + { "t": "从最高点算，跌去了超过百分之九十六。" }, + { "t": "那时候，很多人都说：Solana 死了。" } + ]}, + { "id": "rebuild", "chapter": "灰烬重生", "year": "2023", "lines": [ + { "t": "但一条链真正的生命力，不在价格，而在人。" }, + { "t": "Serum 的代码被社区分叉成 OpenBook，交易照常继续；" }, + { "t": "圣诞节，一个叫 BONK 的狗狗币空投给了社区，冷清的链上突然热闹起来。" }, + { "t": "Jump 团队从零开发的第二个验证者客户端 Firedancer，让人看到了百万 TPS 的可能；" }, + { "t": "状态压缩让铸造一百万个 NFT 只要一百多美元，Helium 把整个网络迁了过来，Solana 还推出了自己的手机 Saga。" }, + { "t": "2023 年底，SOL 回到了一百美元，一年涨了十倍。" } + ]}, + { "id": "meme", "chapter": "Meme 主场", "year": "2024", "lines": [ + { "t": "2024 年，Solana 成了 Meme 的主场。" }, + { "t": "年初，Jupiter 向近百万个地址发放空投；" }, + { "t": "一键发币平台 pump.fun 上线，人人都能在几秒钟内发出一个币。" }, + { "t": "WIF、BONK、POPCAT，一只狗、一顶帽子，就能撬动数十亿美元的市值。" }, + { "t": "Solana 上去中心化交易所的交易量，多次超过了以太坊。" } + ]}, + { "id": "ath", "chapter": "历史新高", "year": "2025", "lines": [ + { "t": "2025 年 1 月，热潮冲上顶点。" }, + { "t": "1 月 19 日，SOL 收盘报 262 美元，创下历史新高。" }, + { "t": "从主网上线初期的几毛钱算起，涨了三百多倍。" } + ]}, + { "id": "wall", "chapter": "华尔街敲门", "year": "2025", "lines": [ + { "t": "这一次，进场的不只是散户。" }, + { "t": "上市公司开始把 SOL 写进资产负债表；" }, + { "t": "2025 年 10 月底，美国首批现货 Solana ETF 开始交易，华尔街的大门正式打开。" }, + { "t": "协议层面，全新的 Alpenglow 共识获得验证者投票通过，目标是把交易最终确认时间，压到一百五十毫秒左右。" } + ]}, + { "id": "now", "chapter": "过山车", "year": "2026", "lines": [ + { "t": "把这六年的价格画成一条线，就是这样一趟过山车。" }, + { "t": "一美元以下起步，两度冲上两百五十美元以上，也曾跌到个位数。" }, + { "t": "进入 2026 年，价格在六十多到一百四十多美元之间反复震荡，" }, + { "t": "截至 2026 年 10 月 7 日，SOL 大约 117 美元。" } + ]}, + { "id": "outro", "chapter": "时间会证明", "year": "", "lines": [ + { "t": "回头看，Solana 的第一个发明，是证明时间。" }, + { "t": "它被嘲笑过、宕机过、被宣判过死刑，又一次次站了起来。" }, + { "t": "速度，可以靠工程；信任，只能靠时间。" }, + { "t": "而这条链的历史，还在每四百毫秒，继续往下写。" }, + { "t": "以上内容仅为科普回顾，不构成任何投资建议。喜欢的话，点赞关注，我们下期见。" } + ]} + ] +} diff --git a/solana-clock/vendor/mediabunny.min.mjs b/solana-clock/vendor/mediabunny.min.mjs new file mode 100644 index 0000000000000000000000000000000000000000..3eaef18975c051b34d3968ea036d7bb4cf476ba7 --- /dev/null +++ b/solana-clock/vendor/mediabunny.min.mjs @@ -0,0 +1,50 @@ +/*! + * Copyright (c) 2026-present, Vanilagy and contributors + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. 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g(I!==null),{emulationUnpreventedBytes:t,profileIdc:n,constraintFlags:a,levelIdc:s,frameMbsOnlyFlag:k,chromaFormatIdc:o,bitDepthLumaMinus8:c,bitDepthChromaMinus8:u,codedWidth:p,codedHeight:b,displayWidth:h,displayHeight:y,pixelAspectRatio:P,colourPrimaries:w,matrixCoefficients:x,transferCharacteristics:A,fullRangeFlag:C,numReorderFrames:S,maxDecFrameBuffering:I,vuiParametersFlagBitOffset:F,bitstreamRestrictionFlagBitOffset:E,bitstreamRestrictionFlag:v}}catch(t){return z._error("Error parsing AVC SPS:",t),null}},Yl=i=>{let t=B(i);i.skipBits(4),i.skipBits(4);for(let e=0;e<=t;e++)B(i),B(i),i.skipBits(1);i.skipBits(5),i.skipBits(5),i.skipBits(5),i.skipBits(5)},Cc=i=>{g(i.bitstreamRestrictionFlag!==1);let t=new Uint8Array(i.emulationUnpreventedBytes.byteLength+64),e=new H(i.emulationUnpreventedBytes),r=new H(t);i.bitstreamRestrictionFlag===null?(r.copyBits(i.vuiParametersFlagBitOffset,e),r.writeBits(1,1),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0),r.writeBits(1,0)):(g(i.bitstreamRestrictionFlagBitOffset!==null),r.copyBits(i.bitstreamRestrictionFlagBitOffset,e)),r.writeBits(1,1),r.writeBits(1,1),pi(r,2),pi(r,1),pi(r,16),pi(r,16),pi(r,i.numReorderFrames),pi(r,i.maxDecFrameBuffering),r.writeBits(1,1),r.writeBits((8-r.pos%8)%8,0);let n=r.pos/8;return g(Number.isInteger(n)),Nf(t.subarray(0,n))},Lf=(i,t)=>{if(t.description){let n=($(t.description)[21]&3)+1;return Ja(i,n)}else return qn(i)},Wn=(i,t)=>{if(t.description){let n=($(t.description)[21]&3)+1;return Ya(i,n)}else return Lr(i)},_t=i=>i>>1&63,xi=i=>{try{let t=new H(Za(i));t.skipBits(16),t.readBits(4);let e=t.readBits(3),r=t.readBits(1),{general_profile_space:n,general_tier_flag:a,general_profile_idc:s,general_profile_compatibility_flags:o,general_constraint_indicator_flags:c,general_level_idc:u}=Wf(t,e);B(t);let l=B(t),d=0;l===3&&(d=t.readBits(1));let m=B(t),f=B(t),p=m,b=f;if(t.readBits(1)){let v=B(t),F=B(t),O=B(t),D=B(t),U=1,K=1,ie=d===0?l:0;ie===1?(U=2,K=2):ie===2&&(U=2,K=1),p-=(v+F)*U,b-=(O+D)*K}let h=B(t),y=B(t);B(t);let T=t.readBits(1)?0:e,w=0;for(let v=T;v<=e;v++)B(t),w=B(t),B(t);B(t),B(t),B(t),B(t),B(t),B(t),t.readBits(1)&&t.readBits(1)&&Hf(t),t.skipBits(1),t.skipBits(1),t.readBits(1)&&(t.skipBits(4),t.skipBits(4),B(t),B(t),t.skipBits(1));let A=B(t);if(qf(t,A),t.readBits(1)){let v=B(t);for(let F=0;F{try{let t=[],e=[],r=[],n=[];for(let u of Lr(i)){let l=i.subarray(u.offset,u.offset+u.length),d=_t(l[0]);d===32?t.push(l):d===33?e.push(l):d===34?r.push(l):(d===39||d===40)&&n.push(l)}if(e.length===0||r.length===0)return null;let a=xi(e[0]);if(!a)return null;let s=0;if(r.length>0){let u=r[0],l=new H(Za(u));l.skipBits(16),B(l),B(l),l.skipBits(1),l.skipBits(1),l.skipBits(3),l.skipBits(1),l.skipBits(1),B(l),B(l),Ht(l),l.skipBits(1),l.skipBits(1),l.readBits(1)&&B(l),Ht(l),Ht(l),l.skipBits(1),l.skipBits(1),l.skipBits(1),l.skipBits(1);let d=l.readBits(1),m=l.readBits(1);!d&&!m?s=0:d&&!m?s=2:!d&&m?s=3:s=0}let o=[...t.length?[{arrayCompleteness:1,nalUnitType:32,nalUnits:t}]:[],...e.length?[{arrayCompleteness:1,nalUnitType:33,nalUnits:e}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:34,nalUnits:r}]:[],...n.length?[{arrayCompleteness:1,nalUnitType:_t(n[0][0]),nalUnits:n}]:[]];return{configurationVersion:1,generalProfileSpace:a.generalProfileSpace,generalTierFlag:a.generalTierFlag,generalProfileIdc:a.generalProfileIdc,generalProfileCompatibilityFlags:a.generalProfileCompatibilityFlags,generalConstraintIndicatorFlags:a.generalConstraintIndicatorFlags,generalLevelIdc:a.generalLevelIdc,minSpatialSegmentationIdc:a.minSpatialSegmentationIdc,parallelismType:s,chromaFormatIdc:a.chromaFormatIdc,bitDepthLumaMinus8:a.bitDepthLumaMinus8,bitDepthChromaMinus8:a.bitDepthChromaMinus8,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:a.spsMaxSubLayersMinus1+1,temporalIdNested:a.spsTemporalIdNestingFlag,lengthSizeMinusOne:3,arrays:o}}catch(t){return z._error("Error building HEVC Decoder Configuration Record:",t),null}},Wf=(i,t)=>{let e=i.readBits(2),r=i.readBits(1),n=i.readBits(5),a=0;for(let l=0;l<32;l++)a=a<<1|i.readBits(1);let s=new Uint8Array(6);for(let l=0;l<6;l++)s[l]=i.readBits(8);let o=i.readBits(8),c=[],u=[];for(let l=0;l0)for(let l=t;l<8;l++)i.skipBits(2);for(let l=0;l{for(let t=0;t<4;t++)for(let e=0;e<(t===3?2:6);e++)if(!i.readBits(1))B(i);else{let n=Math.min(64,1<<4+(t<<1));t>1&&Ht(i);for(let a=0;a{let e=[];for(let r=0;r{let n=0,a=0,s=0;if(t!==0&&(a=i.readBits(1)),a){if(t===e){let c=B(i);s=t-(c+1)}else s=t-1;i.readBits(1),B(i);let o=r[s]??0;for(let c=0;c<=o;c++)i.readBits(1)||i.readBits(1);n=r[s]}else{let o=B(i),c=B(i);for(let u=0;u{let e=2,r=2,n=2,a=0,s=0,o={num:1,den:1};if(i.readBits(1)){let c=i.readBits(8);if(c===255)o={num:i.readBits(16),den:i.readBits(16)};else{let u=td[c];u&&(o=u)}}return i.readBits(1)&&i.readBits(1),i.readBits(1)&&(i.readBits(3),a=i.readBits(1),i.readBits(1)&&(e=i.readBits(8),r=i.readBits(8),n=i.readBits(8))),i.readBits(1)&&(B(i),B(i)),i.readBits(1),i.readBits(1),i.readBits(1),i.readBits(1)&&(B(i),B(i),B(i),B(i)),i.readBits(1)&&(i.readBits(32),i.readBits(32),i.readBits(1)&&B(i),i.readBits(1)&&Gf(i,!0,t)),i.readBits(1)&&(i.readBits(1),i.readBits(1),i.readBits(1),s=B(i),B(i),B(i),B(i),B(i)),{pixelAspectRatio:o,colourPrimaries:e,transferCharacteristics:r,matrixCoefficients:n,fullRangeFlag:a,minSpatialSegmentationIdc:s}},Gf=(i,t,e)=>{let r=!1,n=!1,a=!1;t&&(r=i.readBits(1)===1,n=i.readBits(1)===1,(r||n)&&(a=i.readBits(1)===1,a&&(i.readBits(8),i.readBits(5),i.readBits(1),i.readBits(5)),i.readBits(4),i.readBits(4),a&&i.readBits(4),i.readBits(5),i.readBits(5),i.readBits(5)));for(let s=0;s<=e;s++){let o=i.readBits(1)===1,c=!0;o||(c=i.readBits(1)===1);let u=!1;c?B(i):u=i.readBits(1)===1;let l=1;u||(l=B(i)+1),r&&Zl(i,l,a),n&&Zl(i,l,a)}},Zl=(i,t,e)=>{for(let r=0;r{let t=[];t.push(i.configurationVersion),t.push((i.generalProfileSpace&3)<<6|(i.generalTierFlag&1)<<5|i.generalProfileIdc&31),t.push(i.generalProfileCompatibilityFlags>>>24&255),t.push(i.generalProfileCompatibilityFlags>>>16&255),t.push(i.generalProfileCompatibilityFlags>>>8&255),t.push(i.generalProfileCompatibilityFlags&255),t.push(...i.generalConstraintIndicatorFlags),t.push(i.generalLevelIdc&255),t.push(240|i.minSpatialSegmentationIdc>>8&15),t.push(i.minSpatialSegmentationIdc&255),t.push(252|i.parallelismType&3),t.push(252|i.chromaFormatIdc&3),t.push(248|i.bitDepthLumaMinus8&7),t.push(248|i.bitDepthChromaMinus8&7),t.push(i.avgFrameRate>>8&255),t.push(i.avgFrameRate&255),t.push((i.constantFrameRate&3)<<6|(i.numTemporalLayers&7)<<3|(i.temporalIdNested&1)<<2|i.lengthSizeMinusOne&3),t.push(i.arrays.length&255);for(let e of i.arrays){t.push((e.arrayCompleteness&1)<<7|0|e.nalUnitType&63),t.push(e.nalUnits.length>>8&255),t.push(e.nalUnits.length&255);for(let r of e.nalUnits){t.push(r.length>>8&255),t.push(r.length&255);for(let n=0;n{try{let t=N(i),e=0,r=t.getUint8(e++),n=t.getUint8(e++),a=n>>6&3,s=n>>5&1,o=n&31,c=t.getUint32(e,!1);e+=4;let u=i.subarray(e,e+6);e+=6;let l=t.getUint8(e++),d=(t.getUint8(e++)&15)<<8|t.getUint8(e++),m=t.getUint8(e++)&3,f=t.getUint8(e++)&3,p=t.getUint8(e++)&7,b=t.getUint8(e++)&7,h=t.getUint16(e,!1);e+=2;let y=t.getUint8(e++),k=y>>6&3,T=y>>3&7,w=y>>2&1,A=y&3,x=t.getUint8(e++),C=[];for(let P=0;P>7&1,E=S&63,v=t.getUint16(e,!1);e+=2;let F=[];for(let O=0;O{let e=new Set,r=0;for(let a of Wn(i,t)){if(r===4){e.add(a.offset);continue}let s=_t(i[a.offset]);if(r===3&&s!==37){e.add(a.offset);continue}let o=!1;s===35?r>0?o=!0:r=1:s<=31?r>2?o=!0:r=2:s===36?r!==2?o=!0:r=3:s===37?r<2?o=!0:r=4:s===32||s===33||s===34||s===39||s>=41&&s<=44||s>=48&&s<=55?r>1?o=!0:r=1:(s===38||s===40||s>=45&&s<=47||s>=56&&s<=63)&&r<2&&(o=!0),o&&e.add(a.offset)}if(e.size===0)return null;let n=[];for(let a of Wn(i,t))e.has(a.offset)||n.push(i.subarray(a.offset,a.offset+a.length));return Lf(n,t)},jf={1:{colourPrimaries:5,transferCharacteristics:6,matrixCoefficients:5},2:{colourPrimaries:1,transferCharacteristics:1,matrixCoefficients:1},3:{colourPrimaries:6,transferCharacteristics:6,matrixCoefficients:6},4:{colourPrimaries:7,transferCharacteristics:7,matrixCoefficients:7},5:{colourPrimaries:9,transferCharacteristics:14,matrixCoefficients:9},7:{colourPrimaries:1,transferCharacteristics:13,matrixCoefficients:0}},Zi=i=>{let t=new H(i);if(t.readBits(2)!==2)return null;let r=t.readBits(1),a=(t.readBits(1)<<1)+r;if(a===3&&t.skipBits(1),t.readBits(1)===1||t.readBits(1)!==0||(t.skipBits(2),t.readBits(24)!==4817730))return null;let u=8;a>=2&&(u=t.readBits(1)?12:10);let l=t.readBits(3),d=0,m=0;if(l!==7)if(m=t.readBits(1),a===1||a===3){let P=t.readBits(1),S=t.readBits(1);d=!P&&!S?3:P&&!S?2:1,t.skipBits(1)}else d=1;else d=3,m=1;let f=t.readBits(16),p=t.readBits(16),b=f+1,h=p+1,y=b*h,k=Z(kr).level;for(let C of kr)if(y<=C.maxPictureSize){k=C.level;break}let T=jf[l],w=T?.colourPrimaries??2,A=T?.transferCharacteristics??2,x=T?.matrixCoefficients??2;return{profile:a,level:k,bitDepth:u,chromaSubsampling:d,videoFullRangeFlag:m,colourPrimaries:w,transferCharacteristics:A,matrixCoefficients:x}},nd=i=>i.colourPrimaries!==2||i.transferCharacteristics!==2||i.matrixCoefficients!==2,ad=function*(i){let t=new H(i),e=()=>{let r=0;for(let n=0;n<8;n++){let a=t.readAlignedByte();if(r+=(a&127)*2**(n*7),!(a&128))break;if(n===7&&a&128)return null}return r>2**32-1?null:r};for(;t.getBitsLeft()>=8;){t.skipBits(1);let r=t.readBits(4),n=t.readBits(1),a=t.readBits(1);t.skipBits(1),n&&t.skipBits(8);let s;if(a){let o=e();if(o===null)return;s=o}else s=Math.floor(t.getBitsLeft()/8);g(t.pos%8===0),yield{type:r,data:i.subarray(t.pos/8,t.pos/8+s)},t.skipBits(s*8)}},Ci=i=>{for(let{type:t,data:e}of ad(i)){if(t!==1)continue;let r=new H(e),n=r.readBits(3),a=r.readBits(1),s=r.readBits(1),o=0,c=0,u=0;if(s)o=r.readBits(5);else{let I=r.readBits(1),E=0;if(I){if(r.skipBits(32),r.skipBits(32),r.readBits(1)){let D=0;for(;D<32&&!r.readBits(1);)D++;D<32&&r.skipBits(D)}E=r.readBits(1),E&&(u=r.readBits(5),r.skipBits(32),r.skipBits(5),r.skipBits(5))}let v=r.readBits(1),F=r.readBits(5);for(let O=0;O<=F;O++){r.skipBits(12);let D=r.readBits(5);if(O===0&&(o=D),D>7){let U=r.readBits(1);O===0&&(c=U)}if(E&&r.readBits(1)){let K=u+1;r.skipBits(K),r.skipBits(K),r.skipBits(1)}v&&r.readBits(1)&&r.skipBits(4)}}let l=r.readBits(4),d=r.readBits(4),m=l+1;r.skipBits(m);let f=d+1;r.skipBits(f);let p=0;if(s?p=0:p=r.readBits(1),p&&(r.skipBits(4),r.skipBits(3)),r.skipBits(1),r.skipBits(1),r.skipBits(1),!s){r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);let I=r.readBits(1);I&&(r.skipBits(1),r.skipBits(1));let E=r.readBits(1),v=0;E?v=2:v=r.readBits(1),v>0&&(r.readBits(1)||r.skipBits(1)),I&&r.skipBits(3)}r.skipBits(1),r.skipBits(1),r.skipBits(1);let b=r.readBits(1),h=8;n===2&&b?h=r.readBits(1)?12:10:n<=2&&(h=b?10:8);let y=0;n!==1&&(y=r.readBits(1));let k=2,T=2,w=2;r.readBits(1)&&(k=r.readBits(8),T=r.readBits(8),w=r.readBits(8));let x=0,C=1,P=1,S=0;return y?x=r.readBits(1):k===1&&T===13&&w===0?(x=1,C=0,P=0):(x=r.readBits(1),n===0?(C=1,P=1):n===1?(C=0,P=0):h===12?(C=r.readBits(1),P=C?r.readBits(1):0):(C=1,P=0),C&&P&&(S=r.readBits(2))),{profile:n,level:o,tier:c,bitDepth:h,monochrome:y,chromaSubsamplingX:C,chromaSubsamplingY:P,chromaSamplePosition:S,videoFullRangeFlag:x,colourPrimaries:k,transferCharacteristics:T,matrixCoefficients:w}}return null},ts=i=>i.colourPrimaries!==2||i.transferCharacteristics!==2||i.matrixCoefficients!==2,rs=i=>{if(i.length<36)return null;let e=N(i);return e.getUint32(4)!==1768124518||e.getUint16(8)<28?null:{fullRange:!1,colourPrimaries:e.getUint8(22),transferCharacteristics:e.getUint8(23),matrixCoefficients:e.getUint8(24)}},Hr=i=>{let t=N(i),e=t.getUint8(9),r=t.getUint16(10,!0),n=t.getUint32(12,!0),a=t.getInt16(16,!0),s=t.getUint8(18),o=null;return s&&(o=i.subarray(19,21+e)),{outputChannelCount:e,preSkip:r,inputSampleRate:n,outputGain:a,channelMappingFamily:s,channelMappingTable:o}},Xf=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],sd=i=>{let t=i[0]>>3,e=i[0]&3,r;return e===0?r=1:e===1||e===2?r=2:r=i[1]&63,{durationInSamples:Xf[t]*r}},is=i=>{if(i.length<7)throw new Error("Setup header is too short.");if(i[0]!==5)throw new Error("Wrong packet type in Setup header.");if(String.fromCharCode(...i.slice(1,7))!=="vorbis")throw new Error("Invalid packet signature in Setup header.");let e=i.length,r=new Uint8Array(e);for(let 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f=Ti(m),p=N(f),b=p.getUint32(0,!1),h=p.getUint32(4,!1),y=String.fromCharCode(...f.subarray(8,8+h)),k=p.getUint32(8+h,!1),T=ye.decode(f.subarray(12+h,12+h+k)),w=p.getUint32(h+k+28),A=f.subarray(h+k+32,h+k+32+w);t.images??=[],t.images.push({data:A,mimeType:y,kind:b===3?"coverFront":b===4?"coverBack":"unknown",name:void 0,description:T||void 0})}break}}},Qn=(i,t,e)=>{let r=[i],n=Y.encode(yr),a=new Uint8Array(4+n.length),s=new DataView(a.buffer);s.setUint32(0,n.length,!0),a.set(n,4),r.push(a);let o=[],c=(f,p)=>{let b=`${f}=${p}`,h=Y.encode(b);a=new Uint8Array(4+h.length),s=new DataView(a.buffer),s.setUint32(0,h.length,!0),a.set(h,4),r.push(a),o.push(f)};for(let{key:f,value:p}of 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e=t.readBits(2);if(t.skipBits(3),e!==0&&e!==2)return null;let r=t.readBits(11),n=t.readBits(2),a=0,s;n===3?(a=t.readBits(2),s=3):s=t.readBits(2);let o=t.readBits(3),c=t.readBits(1),u=t.readBits(5);if(u<11||u>16)return null;let l=Pc[s],d;return n<3?d=Ai[n]/1e3:d=Sc[a]/1e3,{dataRate:Math.round((r+1)*d/(l*16)),substreams:[{fscod:n,fscod2:a,bsid:u,bsmod:0,acmod:o,lfeon:c,numDepSub:0,chanLoc:0}]}},ud=i=>{if(i.length<2)return null;let t=new H(i),e=t.readBits(13),r=t.readBits(3),n=[];for(let a=0;a<=r&&!(Math.ceil(t.pos/8)+3>i.length);a++){let s=t.readBits(2),o=t.readBits(5);t.skipBits(1),t.skipBits(1);let c=t.readBits(3),u=t.readBits(3),l=t.readBits(1);t.skipBits(3);let d=t.readBits(4),m=0;d>0?m=t.readBits(9):t.skipBits(1),n.push({fscod:s,fscod2:null,bsid:o,bsmod:c,acmod:u,lfeon:l,numDepSub:d,chanLoc:m})}return n.length===0?null:{dataRate:e,substreams:n}},ss=i=>{let t=i.substreams[0];return g(t),t.fscod<3?Ai[t.fscod]:t.fscod2!==null&&t.fscod2<3?Sc[t.fscod2]:null},os=i=>{let t=i.substreams[0];g(t);let e=Gn[t.acmod]+t.lfeon;if(t.numDepSub>0){let r=[2,2,1,1,2,2,2,1,1];for(let n=0;n<9;n++)t.chanLoc&1<<8-n&&(e+=r[n])}return e};var $f=1683496997,$n=18,cs=10,ld=4096,Jl=32,us=20,Yf=8,Zf=[0,8e3,16e3,32e3,0,0,11025,22050,44100,0,0,12e3,24e3,48e3,96e3,192e3],Jf=[32e3,56e3,64e3,96e3,112e3,128e3,192e3,224e3,256e3,32e4,384e3,448e3,512e3,576e3,64e4,768e3,96e4,1024e3,1152e3,128e4,1344e3,1408e3,1411200,1472e3,1536e3,192e4,2048e3,3072e3,384e4,0,0,0],ep=[16,16,20,20,0,24,24,0],$a=[1,2,2,2,2,3,3,4,4,5,6,6,6,7,8,8],tp=[1,2,2,2,2,3,18,19,6,7,518,323,83,519,582,535],rp=8,ip=44646,np=[32e3,44100,48e3,0],ap=[8e3,16e3,32e3,64e3,128e3,22050,44100,88200,176400,352800,12e3,24e3,48e3,96e3,192e3,384e3],dd=[512,1024,2048,4096],Yn=i=>{let t=Ic(i),e=N(i),r=t?Math.ceil(t.frameSize/4)*4:0,n=null;for(;r+4<=i.length&&e.getUint32(r)===$f;){let s=Zn(i.subarray(r));if(!s)break;n??=s,r+=s.frameSize}if(t)return{frameSize:n?r:t.frameSize,sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,sampleCount:t.sampleCount,channelLayout:t.channelLayout,pcmResolution:t.pcmResolution,bitRate:t.bitRate,core:t,hasExtensions:n!==null};if(!n?.asset)return null;let{asset:a}=n;return{frameSize:r,sampleRate:a.sampleRate,numberOfChannels:a.numberOfChannels,sampleCount:a.sampleCount,channelLayout:a.channelLayout,pcmResolution:a.pcmResolution,bitRate:0,core:null,hasExtensions:!0}},ls=i=>{let t=Yn(i);return t?.core?t.hasExtensions?"dtsh":"dtsc":null},Ic=i=>{if(i.length<$n||i[0]!==127||i[1]!==254||i[2]!==128||i[3]!==1)return null;let t=new H(i);if(t.skipBits(32),t.skipBits(1),t.readBits(5)!==Jl-1)return null;let e=t.readBits(1),r=t.readBits(7)+1;if(r%Yf!==0)return null;let n=t.readBits(14)+1;if(n<96)return null;let a=t.readBits(6);if(a>=$a.length)return null;let s=Zf[t.readBits(4)];if(s===0)return null;let o=Jf[t.readBits(5)];if(t.readBits(1)!==0)return null;t.skipBits(4),t.skipBits(5);let c=t.readBits(2);if(c===3)return null;t.skipBits(1),e&&t.skipBits(16),t.skipBits(7);let u=ep[t.readBits(3)];if(u===0)return null;let l=c!==0;return{frameSize:n,sampleRate:s,numberOfChannels:$a[a]+(l?1:0),sampleCount:r*Jl,channelLayout:tp[a]|(l?rp:0),amode:a,lfePresent:l,bitRate:o,pcmResolution:u}},Zn=i=>{if(i.length2&&t.skipBits(1),b>6&&t.skipBits(1),t.readBits(1))){let y=t.readBits(2)+1<<2;h=t.readBits(y)}return c===0||t.getBitsLeft()<0?o:{frameSize:s,asset:{sampleRate:p,numberOfChannels:b,sampleCount:Math.round(u*p/c),channelLayout:h,pcmResolution:f}}},md=i=>{if(i.length{let t=new Uint8Array(us),e=N(t);e.setUint32(0,i.sampleRate),e.setUint32(4,i.bitRate),e.setUint32(8,i.bitRate),t[12]=i.pcmResolution;let r=i.core&&!i.hasExtensions?1:0,n=new H(t);return n.seekToByte(13),n.writeBits(2,Math.max(dd.indexOf(i.sampleCount),0)),n.writeBits(5,r),n.writeBits(1,i.core?.lfePresent?1:0),n.writeBits(6,i.core?.amode??0),n.writeBits(14,i.core?i.core.frameSize-1:0),n.writeBits(1,0),n.writeBits(3,0),n.writeBits(16,i.channelLayout),n.writeBits(1,0),n.writeBits(1,0),n.writeBits(1,0),n.writeBits(5,0),t},sp=i=>Ha(i)+Ha(i&ip);var 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:"apcs",bitrate:102e6,alpha:!1},{fourCc:"apcn",bitrate:147e6,alpha:!1},{fourCc:"apch",bitrate:22e7,alpha:!1},{fourCc:"ap4h",bitrate:33e7,alpha:!0},{fourCc:"ap4x",bitrate:5e8,alpha:!0}],ms=(i,t,e,r,n)=>{if(i==="avc"){let 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metadata decoder configuration colorSpace fullRange, when defined, must be a boolean.")}if(i.decoderConfig.codec.startsWith("avc1")||i.decoderConfig.codec.startsWith("avc3")){if(!up.test(i.decoderConfig.codec))throw new TypeError("Video chunk metadata decoder configuration codec string for AVC must be a valid AVC codec string as specified in Section 3.4 of RFC 6381.")}else if(i.decoderConfig.codec.startsWith("hev1")||i.decoderConfig.codec.startsWith("hvc1")){if(!lp.test(i.decoderConfig.codec))throw new TypeError("Video chunk metadata decoder configuration codec string for HEVC must be a valid HEVC codec string as specified in Section E.3 of ISO 14496-15.")}else if(i.decoderConfig.codec.startsWith("vp8")){if(i.decoderConfig.codec!=="vp8")throw new TypeError('Video chunk metadata decoder configuration codec string for VP8 must be "vp8".')}else if(i.decoderConfig.codec.startsWith("vp09")){if(!dp.test(i.decoderConfig.codec))throw new TypeError('Video chunk metadata decoder configuration 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'${t}'.`)},fp=["mp4a","mp3","opus","vorbis","flac","ulaw","alaw","pcm","ac-3","ec-3","dts"],Se=(i,t)=>{if(!i)throw new TypeError("Audio chunk metadata must be provided.");if(typeof i!="object")throw new TypeError("Audio chunk metadata must be an object.");if(!i.decoderConfig)throw new TypeError("Audio chunk metadata must include a decoder configuration.");if(typeof i.decoderConfig!="object")throw new TypeError("Audio chunk metadata decoder configuration must be an object.");if(typeof i.decoderConfig.codec!="string")throw new TypeError("Audio chunk metadata decoder configuration must specify a codec string.");if(!fp.some(e=>i.decoderConfig.codec.startsWith(e)))throw new TypeError("Audio chunk metadata decoder configuration codec string must be a valid audio codec string as specified in the Mediabunny Codec Registry.");if(!Number.isInteger(i.decoderConfig.sampleRate)||i.decoderConfig.sampleRate<=0)throw new TypeError("Audio chunk metadata decoder configuration must specify a valid sampleRate (positive integer).");if(!Number.isInteger(i.decoderConfig.numberOfChannels)||i.decoderConfig.numberOfChannels<=0)throw new TypeError("Audio chunk metadata decoder configuration must specify a valid numberOfChannels (positive integer).");if(i.decoderConfig.description!==void 0&&!fr(i.decoderConfig.description))throw new TypeError("Audio chunk metadata decoder configuration description, when defined, must be an ArrayBuffer or an ArrayBuffer view.");if(i.decoderConfig.codec.startsWith("mp4a")&&i.decoderConfig.codec!=="mp4a.69"&&i.decoderConfig.codec!=="mp4a.6B"&&i.decoderConfig.codec!=="mp4a.6b"){if(!["mp4a.40.2","mp4a.40.02","mp4a.40.5","mp4a.40.05","mp4a.40.29","mp4a.67"].includes(i.decoderConfig.codec))throw new TypeError("Audio chunk metadata decoder configuration codec string for AAC must be a valid AAC codec string as specified in https://www.w3.org/TR/webcodecs-aac-codec-registration/.")}else if(i.decoderConfig.codec.startsWith("mp3")||i.decoderConfig.codec.startsWith("mp4a")){if(i.decoderConfig.codec!=="mp3"&&i.decoderConfig.codec!=="mp4a.69"&&i.decoderConfig.codec!=="mp4a.6B"&&i.decoderConfig.codec!=="mp4a.6b")throw new TypeError('Audio chunk metadata decoder configuration codec string for MP3 must be "mp3", "mp4a.69" or "mp4a.6B".')}else if(i.decoderConfig.codec.startsWith("opus")){if(i.decoderConfig.codec!=="opus")throw new TypeError('Audio chunk metadata decoder configuration codec string for Opus must be "opus".');if(i.decoderConfig.description&&i.decoderConfig.description.byteLength<18)throw new TypeError("Audio chunk metadata decoder configuration description, when specified, is expected to be an Identification Header as specified in Section 5.1 of RFC 7845.")}else if(i.decoderConfig.codec.startsWith("vorbis")){if(i.decoderConfig.codec!=="vorbis")throw new TypeError('Audio chunk metadata decoder configuration codec string for Vorbis must be "vorbis".');if(!i.decoderConfig.description)throw new TypeError("Audio chunk metadata decoder configuration for Vorbis must include a description, which is expected to adhere to the format described in https://www.w3.org/TR/webcodecs-vorbis-codec-registration/.")}else if(i.decoderConfig.codec.startsWith("flac")){if(i.decoderConfig.codec!=="flac")throw new TypeError('Audio chunk metadata decoder configuration codec string for FLAC must be "flac".');if(!i.decoderConfig.description||i.decoderConfig.description.byteLength<42)throw new TypeError("Audio chunk metadata decoder configuration for FLAC must include a description, which is expected to adhere to the format described in https://www.w3.org/TR/webcodecs-flac-codec-registration/.")}else if(i.decoderConfig.codec.startsWith("ac-3")||i.decoderConfig.codec.startsWith("ac3")){if(i.decoderConfig.codec!=="ac-3")throw new TypeError('Audio chunk metadata decoder configuration codec string for AC-3 must be "ac-3".')}else if(i.decoderConfig.codec.startsWith("ec-3")||i.decoderConfig.codec.startsWith("eac3")){if(i.decoderConfig.codec!=="ec-3")throw new TypeError('Audio chunk metadata decoder configuration codec string for EC-3 must be "ec-3".')}else if(i.decoderConfig.codec.startsWith("dts")){if(!Jn.includes(i.decoderConfig.codec))throw new TypeError(`Audio chunk metadata decoder configuration codec string for DTS must be one of the following four-character codes: ${Jn.join(", ")}.`)}else if((i.decoderConfig.codec.startsWith("pcm")||i.decoderConfig.codec.startsWith("ulaw")||i.decoderConfig.codec.startsWith("alaw"))&&!ae.includes(i.decoderConfig.codec))throw new TypeError(`Audio chunk metadata decoder configuration codec string for PCM must be one of the supported PCM codecs (${ae.join(", ")}).`);if(t!==null&&Ze(i.decoderConfig.codec)!==t)throw new TypeError(`Audio chunk metadata decoder configuration codec string '${i.decoderConfig.codec}' does not fit to the track codec '${t}'.`)},gs=i=>{if(!i)throw new TypeError("Subtitle metadata must be provided.");if(typeof i!="object")throw new TypeError("Subtitle metadata must be an object.");if(!i.config)throw new TypeError("Subtitle metadata must include a config object.");if(typeof i.config!="object")throw new TypeError("Subtitle metadata config must be an object.");if(typeof i.config.description!="string")throw new TypeError("Subtitle metadata config description must be a string.")};var 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number.");if(!Number.isFinite(n)||n<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(a))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(s)||s<0)throw new TypeError("byteLength must be a non-negative integer.");if(o!==void 0&&(typeof o!="object"||!o))throw new TypeError("sideData, when provided, must be an object.");if(o?.alpha!==void 0&&!(o.alpha instanceof Uint8Array))throw new TypeError("sideData.alpha, when provided, must be a Uint8Array.");if(o?.alphaByteLength!==void 0&&(!Number.isInteger(o.alphaByteLength)||o.alphaByteLength<0))throw new TypeError("sideData.alphaByteLength, when provided, must be a non-negative integer.");this.byteLength=s,this.sideData=o??{},this.sideData.alpha&&this.sideData.alphaByteLength===void 0&&(this.sideData.alphaByteLength=this.sideData.alpha.byteLength)}get isMetadataOnly(){return this.data===Te}get microsecondTimestamp(){return Math.trunc(Kt*this.timestamp)}get 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0&&!Number.isFinite(t.timestamp))throw new TypeError("options.timestamp, when provided, must be a number.");if(t?.duration!==void 0&&!Number.isFinite(t.duration))throw new TypeError("options.duration, when provided, must be a number.");if(t?.sequenceNumber!==void 0&&!Number.isFinite(t.sequenceNumber))throw new TypeError("options.sequenceNumber, when provided, must be a number.");if(t?.sideData!==void 0&&(typeof t.sideData!="object"||t.sideData===null))throw new TypeError("options.sideData, when provided, must be an object.");return new i(t?.data??this.data,t?.type??this.type,t?.timestamp??this.timestamp,t?.duration??this.duration,t?.sequenceNumber??this.sequenceNumber,this.byteLength,t?.sideData??this.sideData)}};var Ts=i=>{let e=(i.hasVideo?"video/":i.hasAudio?"audio/":"application/")+(i.isQuickTime?"quicktime":"mp4");if(i.codecStrings.length>0){let r=[...new Set(i.codecStrings)];e+=`; codecs="${r.join(", ")}"`}return e},ws=i=>{let t=N(i),e=0,r=t.getUint8(e);e+=1,e+=3;let n=Vr(i.subarray(e,e+16));e+=16;let a=null;if(r>0){let o=t.getUint32(e);if(e+=4,o>0){a=[];for(let c=0;ci.systemId===t.systemId&&Ka(i.data,t.data);var Mt=8,wr=16,Sr=i=>{let t=M(i),e=oe(i,4),r=8;t===1&&(t=We(i),r=16);let a=t-r;return a<0?null:{name:e,totalSize:t,headerSize:r,contentSize:a}},$r=i=>Ar(i)/65536,As=i=>Ar(i)/1073741824,xs=i=>{let t=0;for(let e=0;e<4;e++){t<<=7;let r=L(i);if(t|=r&127,(r&128)===0)break}return t},Bt=i=>{let t=he(i);return i.skip(2),t=Math.min(t,i.remainingLength),ye.decode(V(i,t))},Pd=i=>{let t=Sr(i);if(!t||t.name!=="data"||i.remainingLength<8)return null;let e=M(i);i.skip(4);let r=V(i,t.contentSize-8);switch(e){case 1:return ye.decode(r);case 2:return new hi("utf-16be").decode(r);case 13:return new yt(r,"image/jpeg");case 14:return new yt(r,"image/png");case 27:return new yt(r,"image/bmp");default:return r}};var Ot=16,xr=new Uint32Array(256),tn=new Uint32Array(256),rn=new Uint32Array(256),nn=new Uint32Array(256),an=new Uint32Array(256),De=new 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DataView(t.buffer,t.byteOffset,t.byteLength),n=new DataView(e.buffer,e.byteOffset,e.byteLength);this.roundkey[0]=r.getUint32(0,!1),this.roundkey[1]=r.getUint32(4,!1),this.roundkey[2]=r.getUint32(8,!1),this.roundkey[3]=r.getUint32(12,!1),this.iv[0]=n.getUint32(0,!1),this.iv[1]=n.getUint32(4,!1),this.iv[2]=n.getUint32(8,!1),this.iv[3]=n.getUint32(12,!1);for(let a=4;a<44;a+=4){let s=this.roundkey[a-1];this.roundkey[a]=this.roundkey[a-4]^xr[s>>>16&255]&4278190080^xr[s>>>8&255]&16711680^xr[s>>>0&255]&65280^xr[s>>>24&255]&255^Id[a/4-1],this.roundkey[a+1]=this.roundkey[a-3]^this.roundkey[a],this.roundkey[a+2]=this.roundkey[a-2]^this.roundkey[a+1],this.roundkey[a+3]=this.roundkey[a-1]^this.roundkey[a+2]}for(let a=0,s=40;a>>24&255]&255]^rn[xr[o>>>16&255]&255]^nn[xr[o>>>8&255]&255]^an[xr[o>>>0&255]&255]}}decrypt(){let t=this.inView.getUint32(0,!1)^this.roundkey[0],e=this.inView.getUint32(4,!1)^this.roundkey[1],r=this.inView.getUint32(8,!1)^this.roundkey[2],n=this.inView.getUint32(12,!1)^this.roundkey[3],a=this.inView.getUint32(0,!1),s=this.inView.getUint32(4,!1),o=this.inView.getUint32(8,!1),c=this.inView.getUint32(12,!1),u,l,d,m;for(let y=1;y<10;y++){let k=y*4;u=tn[t>>>24]^rn[n>>>16&255]^nn[r>>>8&255]^an[e&255]^this.roundkey[k],l=tn[e>>>24]^rn[t>>>16&255]^nn[n>>>8&255]^an[r&255]^this.roundkey[k+1],d=tn[r>>>24]^rn[e>>>16&255]^nn[t>>>8&255]^an[n&255]^this.roundkey[k+2],m=tn[n>>>24]^rn[r>>>16&255]^nn[e>>>8&255]^an[t&255]^this.roundkey[k+3],t=u,e=l,r=d,n=m}let f=De[t>>>24&255]&4278190080^De[n>>>16&255]&16711680^De[r>>>8&255]&65280^De[e>>>0&255]&255^this.roundkey[40],p=De[e>>>24&255]&4278190080^De[t>>>16&255]&16711680^De[n>>>8&255]&65280^De[r>>>0&255]&255^this.roundkey[41],b=De[r>>>24&255]&4278190080^De[e>>>16&255]&16711680^De[t>>>8&255]&65280^De[n>>>0&255]&255^this.roundkey[42],h=De[n>>>24&255]&4278190080^De[r>>>16&255]&16711680^De[e>>>8&255]&65280^De[t>>>0&255]&255^this.roundkey[43];this.outView.setUint32(0,f^this.iv[0],!1),this.outView.setUint32(4,p^this.iv[1],!1),this.outView.setUint32(8,b^this.iv[2],!1),this.outView.setUint32(12,h^this.iv[3],!1),this.iv[0]=a,this.iv[1]=s,this.iv[2]=o,this.iv[3]=c}},vd=(i,t,e)=>{let r=!1,n=0,a=2**16,s=16,o=new ea;return new ReadableStream({pull:async c=>{r||(o.init(await t()),r=!0);let u=a+s,l=i.requestSliceRange(n,0,u);if(_(l)&&(l=await l),!l||l.length===0)throw new Error("Invalid ciphertext.");let d=l.length;if(d%16!==0)throw new Error("Invalid ciphertext.");let m=d===u?d-s:d,f=V(l,m),p=new Uint8Array(m);for(let b=0;b16)throw new Error("Invalid PKCS#7 padding. Incorrect key or corrupted data.");let h=p.subarray(0,m-b);c.enqueue(h),c.close(),e()}},cancel:()=>{e()}})};var Cs=class i extends Ae{constructor(e){super(e);this.moovSlice=null;this.currentTrack=null;this.tracks=[];this.metadataPromise=null;this.movieTimescale=-1;this.movieDurationInTimescale=-1;this.movieMatrix=Dr;this.isQuickTime=!1;this.metadataTags={};this.currentMetadataKeys=null;this.isFragmented=!1;this.fragmentTrackDefaults=[];this.psshBoxes=[];this.currentFragment=null;this.lastReadFragment=null;this.decryptionKeyCache=new Map;this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.tracks.map(e=>e.trackBacking)}async getMimeType(){await this.readMetadata();let e=await this.getTrackBackings(),r=await Promise.all(e.map(n=>n.getDecoderConfig().then(a=>a?.codec??null)));return Ts({isQuickTime:this.isQuickTime,hasVideo:this.tracks.some(n=>n.info?.type==="video"),hasAudio:this.tracks.some(n=>n.info?.type==="audio"),codecStrings:r.filter(Boolean)})}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}readMetadata(){return this.metadataPromise??=(async()=>{let e=0,r=!1,n=!1;for(;;){let a=this.reader.requestSliceRange(e,Mt,wr);if(_(a)&&(a=await a),!a)break;let s=e,o=Sr(a);if(!o)break;if(o.name==="ftyp"||o.name==="styp"){let c=oe(a,4);this.isQuickTime=c==="qt "}else if(o.name==="moov"){let c=this.reader.requestSlice(a.filePos,o.contentSize);if(_(c)&&(c=await c),!c)break;this.moovSlice=c,this.readContiguousBoxes(this.moovSlice);for(let u of this.tracks){let l=u.editListPreviousSegmentDurations/this.movieTimescale;u.editListOffset-=Math.round(l*u.timescale)}r=this.isFragmented&&this.reader.fileSize!==null&&this.reader.fileSize>s+o.totalSize,n=!0;break}else if(o.name==="moof"){if(!this.input._initInput)throw new Error('"moof" box encountered with no "moov" box present; this file is likely a Segment as described in ISO/IEC 14496-12 Section 8.16. A separate init file that contains a "moov" box is required to read this file, please provide it using InputOptions.initInput.');await this.copyMetadataFromInitInput(this.input._initInput),r=!1,n=!0;break}e=s+o.totalSize}if(!n&&this.input._initInput&&await this.copyMetadataFromInitInput(this.input._initInput),r){g(this.reader.fileSize!==null);let a=this.reader.requestSlice(this.reader.fileSize-4,4);_(a)&&(a=await a),g(a);let s=M(a),o=this.reader.fileSize-s;if(o>=0&&o<=this.reader.fileSize-wr){let c=this.reader.requestSliceRange(o,Mt,wr);if(_(c)&&(c=await c),c){let u=Sr(c);if(u&&u.name==="mfra"){let l=this.reader.requestSlice(c.filePos,u.contentSize);_(l)&&(l=await l),l&&this.readContiguousBoxes(l)}}}}})()}async copyMetadataFromInitInput(e){let r=await e._getDemuxer();if(r.constructor!==i)throw new Error("Init input must match the input's format.");await r.readMetadata(),this.movieTimescale=r.movieTimescale,this.movieDurationInTimescale=r.movieDurationInTimescale,this.movieMatrix=r.movieMatrix,this.metadataTags=r.metadataTags,this.isFragmented=!0,this.fragmentTrackDefaults=r.fragmentTrackDefaults,this.psshBoxes=r.psshBoxes;for(let n of r.tracks){let a={id:n.id,demuxer:this,trackBacking:null,disposition:n.disposition,timescale:n.timescale,durationInMediaTimescale:n.durationInMediaTimescale,durationInMovieTimescale:n.durationInMovieTimescale,matrix:n.matrix,internalCodecId:n.internalCodecId,name:n.name,languageCode:n.languageCode,sampleTableByteOffset:null,sampleTable:null,fragmentLookupTable:[],currentFragmentState:null,fragmentPositionCache:[],editListPreviousSegmentDurations:n.editListPreviousSegmentDurations,editListOffset:n.editListOffset,encryptionInfo:n.encryptionInfo,encryptionAuxInfo:null,frmaCodecString:null,maxBitrate:n.maxBitrate,avgBitrate:n.avgBitrate,info:n.info};if(n.trackBacking){if(g(a.info),a.info.type==="video"&&a.info.width!==-1){let s=a;a.trackBacking=new Is(s),this.tracks.push(a)}else if(a.info.type==="audio"&&a.info.numberOfChannels!==-1){let s=a;a.trackBacking=new Es(s),this.tracks.push(a)}}}}getSampleTableForTrack(e){if(e.sampleTable)return e.sampleTable;let r={sampleTimingEntries:[],sampleCompositionTimeOffsets:[],sampleSizes:[],keySampleIndices:null,chunkOffsets:[],sampleToChunk:[],presentationTimestamps:null,presentationTimestampIndexMap:null};if(e.sampleTable=r,e.sampleTableByteOffset===null)return r;g(this.moovSlice);let n=this.moovSlice.slice(e.sampleTableByteOffset);if(this.currentTrack=e,this.traverseBox(n),this.currentTrack=null,e.info?.type==="audio"&&e.info.codec&&ae.includes(e.info.codec)&&r.sampleCompositionTimeOffsets.length===0){g(e.info?.type==="audio");let s=Re(e.info.codec),o=[],c=[];for(let u=0;uS.startIndex),y=r.sampleTimingEntries[h],k=Q(r.sampleTimingEntries,b,S=>S.startIndex),T=r.sampleTimingEntries[k],w=y.startDecodeTimestamp+(p-y.startIndex)*y.delta,x=T.startDecodeTimestamp+(b-T.startIndex)*T.delta-w,C=Z(o);C&&C.delta===x?C.count++:o.push({startIndex:l.startChunkIndex+f,startDecodeTimestamp:w,count:1,delta:x});let P=l.samplesPerChunk*s.sampleSize*e.info.numberOfChannels;c.push(P)}l.startSampleIndex=l.startChunkIndex,l.samplesPerChunk=1}r.sampleTimingEntries=o,r.sampleSizes=c}if(r.sampleCompositionTimeOffsets.length>0){r.presentationTimestamps=[];for(let s of r.sampleTimingEntries)for(let o=0;os.presentationTimestamp-o.presentationTimestamp),r.presentationTimestampIndexMap=Array(r.presentationTimestamps.length).fill(-1);for(let s=0;sm.moofOffset===s.moofOffset);if(d)vc(o,d.timestamp);else{let m=Q(u,s.moofOffset-1,f=>f.moofOffset);if(m!==-1){let f=u[m];vc(o,f.endTimestamp)}}o.startTimestampIsFinal=!0}let l=Q(u,o.startTimestamp,d=>d.startTimestamp);if((l===-1||u[l].moofOffset!==s.moofOffset)&&u.splice(l+1,0,{moofOffset:s.moofOffset,startTimestamp:o.startTimestamp,endTimestamp:o.endTimestamp}),o.encryptionAuxInfo&&c.encryptionInfo){let d=await Vd(this.reader,c.encryptionInfo,o.encryptionAuxInfo);for(let m=0;m0){o.languageCode="";for(let l=0;l<3;l++)o.languageCode=String.fromCharCode(96+(u&31))+o.languageCode,u>>=5;gr(o.languageCode)||(o.languageCode=se)}}break;case"hdlr":{let o=this.currentTrack;if(!o)break;e.skip(8);let c=oe(e,4);c==="vide"?o.info={type:"video",width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,codec:null,codecDescription:null,colorSpace:{...Na},avcType:null,avcCodecInfo:null,hevcCodecInfo:null,vp9CodecInfo:null,av1CodecInfo:null,proresCodecInfo:null,proresFormat:null}:c==="soun"&&(o.info={type:"audio",numberOfChannels:-1,sampleRate:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null,pcmLittleEndian:!1,pcmSampleSize:null})}break;case"stbl":{let o=this.currentTrack;if(!o)break;o.sampleTableByteOffset=r,this.readContiguousBoxes(e.slice(a,n.contentSize))}break;case"stsd":{let o=this.currentTrack;if(!o||o.info===null||o.sampleTable)break;let c=L(e);e.skip(3);let u=M(e);for(let l=0;l0&&(p===1?(e.skip(4),h=8*M(e),e.skip(2*4)):p===2&&(e.skip(4),y=vs(e),b=M(e),e.skip(4),h=M(e),k=M(e),e.skip(2*4))),o.info.numberOfChannels=b,o.info.sampleRate=y,o.frmaCodecString=null,this.readContiguousBoxes(e.slice(e.filePos,d+m.totalSize-e.filePos));let T=f==="enca"?o.frmaCodecString:f;if(o.frmaCodecString=null,T!=="mp4a")if(T==="opus")o.info.codec="opus",o.info.sampleRate=Ft;else if(T==="flac")o.info.codec="flac";else if(T==="ulaw")o.info.codec="ulaw";else if(T==="alaw")o.info.codec="alaw";else if(T==="ac-3")o.info.codec="ac3";else if(T==="ec-3")o.info.codec="eac3";else if(Jn.includes(T))o.info.codec="dts",o.info.dtsFormat=T;else if(T==="twos")h===8?o.info.codec="pcm-s8":h===16?o.info.codec=o.info.pcmLittleEndian?"pcm-s16":"pcm-s16be":(z._warn(`Unsupported sample size ${h} for codec 'twos'.`),o.info.codec=null);else if(T==="sowt")h===8?o.info.codec="pcm-s8":h===16?o.info.codec="pcm-s16":(z._warn(`Unsupported sample size ${h} for codec 'sowt'.`),o.info.codec=null);else if(T==="raw ")o.info.codec="pcm-u8";else if(T==="in24")o.info.codec=o.info.pcmLittleEndian?"pcm-s24":"pcm-s24be";else if(T==="in32")o.info.codec=o.info.pcmLittleEndian?"pcm-s32":"pcm-s32be";else if(T==="fl32")o.info.codec=o.info.pcmLittleEndian?"pcm-f32":"pcm-f32be";else if(T==="fl64")o.info.codec=o.info.pcmLittleEndian?"pcm-f64":"pcm-f64be";else if(T==="ipcm"){let w=o.info.pcmSampleSize;o.info.pcmLittleEndian?w===16?o.info.codec="pcm-s16":w===24?o.info.codec="pcm-s24":w===32?o.info.codec="pcm-s32":(z._warn(`Invalid ipcm sample size ${w}.`),o.info.codec=null):w===16?o.info.codec="pcm-s16be":w===24?o.info.codec="pcm-s24be":w===32?o.info.codec="pcm-s32be":(z._warn(`Invalid ipcm sample size ${w}.`),o.info.codec=null)}else if(T==="fpcm"){let w=o.info.pcmSampleSize;o.info.pcmLittleEndian?w===32?o.info.codec="pcm-f32":w===64?o.info.codec="pcm-f64":(z._warn(`Invalid fpcm sample size ${w}.`),o.info.codec=null):w===32?o.info.codec="pcm-f32be":w===64?o.info.codec="pcm-f64be":(z._warn(`Invalid fpcm sample size ${w}.`),o.info.codec=null)}else if(T==="lpcm"&&k!==null){let w=h+7>>3,A=!!(k&1),x=!!(k&2),C=k&4?-1:0;h>0&&h<=64&&(A?h===32&&(o.info.codec=x?"pcm-f32be":"pcm-f32"):C&1<0?(o.encryptionInfo.defaultCryptByteBlock=u>>4,o.encryptionInfo.defaultSkipByteBlock=u&15):(o.encryptionInfo.defaultCryptByteBlock=0,o.encryptionInfo.defaultSkipByteBlock=0),o.encryptionInfo.defaultIsProtected=L(e)!==0,o.encryptionInfo.defaultPerSampleIvSize=L(e),o.encryptionInfo.defaultKid=Vr(V(e,16)),o.encryptionInfo.defaultIsProtected&&o.encryptionInfo.defaultPerSampleIvSize===0){let l=L(e),d=new Uint8Array(16);d.set(V(e,l),0),o.encryptionInfo.defaultConstantIv=d}}break;case"avcC":{let o=this.currentTrack;if(!o||(g(o.info),n.contentSize===0))break;o.info.codecDescription=V(e,n.contentSize);let c=Wr(o.info.codecDescription)?.sequenceParameterSets[0],u=c&&Jt(c);u&&Rd(o,u.pixelAspectRatio)}break;case"hvcC":{let o=this.currentTrack;if(!o||(g(o.info),n.contentSize===0))break;o.info.codecDescription=V(e,n.contentSize);let c=Yi(o.info.codecDescription)?.arrays.find(l=>l.nalUnitType===33)?.nalUnits[0],u=c&&xi(c);u&&Rd(o,u.pixelAspectRatio)}break;case"vpcC":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="video"),e.skip(4);let c=L(e),u=L(e),l=L(e),d=l>>4,m=l>>1&7,f=l&1,p=L(e),b=L(e),h=L(e);o.info.vp9CodecInfo={profile:c,level:u,bitDepth:d,chromaSubsampling:m,videoFullRangeFlag:f,colourPrimaries:p,transferCharacteristics:b,matrixCoefficients:h}}break;case"av1C":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="video"),e.skip(1);let c=L(e),u=c>>5,l=c&31,d=L(e),m=d>>7,f=d>>6&1,p=d>>5&1,b=d>>4&1,h=d>>3&1,y=d>>2&1,k=d&3,T=u===2&&f?p?12:10:f?10:8;e.skip(1);let w=V(e,n.contentSize-4),A=Ci(w);o.info.av1CodecInfo={profile:u,level:l,tier:m,bitDepth:T,monochrome:b,chromaSubsamplingX:h,chromaSubsamplingY:y,chromaSamplePosition:k,videoFullRangeFlag:A?.videoFullRangeFlag??0,colourPrimaries:A?.colourPrimaries??2,transferCharacteristics:A?.transferCharacteristics??2,matrixCoefficients:A?.matrixCoefficients??2}}break;case"colr":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="video");let c=oe(e,4);if(c!=="nclx"&&c!=="nclc")break;let u=he(e),l=he(e),d=he(e),m;c==="nclx"&&(m=!!(L(e)&128)),o.info.colorSpace={primaries:ut[u],transfer:lt[l],matrix:dt[d],fullRange:m}}break;case"pasp":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="video");let c=M(e),u=M(e);c>0&&u>0&&(o.info.squarePixelWidth=o.info.width,o.info.squarePixelHeight=o.info.height,c>u?o.info.squarePixelWidth=Math.round(o.info.width*c/u):o.info.squarePixelHeight=Math.round(o.info.height*u/c))}break;case"btrt":{let o=this.currentTrack;if(!o)break;e.skip(4);let c=M(e),u=M(e);o.maxBitrate=c>0?c:null,o.avgBitrate=u>0?u:null}break;case"wave":this.readContiguousBoxes(e.slice(a,n.contentSize));break;case"esds":{let o=this.currentTrack;if(!o||o.info?.type!=="audio")break;e.skip(4);let c=L(e);g(c===3),xs(e),e.skip(2);let u=L(e),l=(u&128)!==0,d=(u&64)!==0,m=(u&32)!==0;if(l&&e.skip(2),d){let y=L(e);e.skip(y)}m&&e.skip(2);let f=L(e);g(f===4);let p=xs(e),b=e.filePos,h=L(e);if(h===64||h===103?(o.info.codec="aac",o.info.aacCodecInfo={isMpeg2:h===103,objectType:null}):h===105||h===107?o.info.codec="mp3":h===221?o.info.codec="vorbis":h===169?o.info.codec="dts":z._warn(`Unsupported audio codec (objectTypeIndication ${h}) - discarding track.`),e.skip(12),p>e.filePos-b){let y=L(e);g(y===5);let k=xs(e);if(o.info.codecDescription=V(e,k),o.info.codec==="aac"){let T=$t(o.info.codecDescription);T.outputNumberOfChannels!==null&&(o.info.numberOfChannels=T.outputNumberOfChannels),T.outputSampleRate!==null&&(o.info.sampleRate=T.outputSampleRate)}}}break;case"enda":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="audio"),o.info.pcmLittleEndian=!!(he(e)&255)}break;case"pcmC":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="audio"),e.skip(4);let c=L(e);o.info.pcmLittleEndian=!!(c&1),o.info.pcmSampleSize=L(e)}break;case"dOps":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="audio"),e.skip(1);let c=L(e),u=he(e),l=M(e),d=ta(e),m=L(e),f;m!==0?f=V(e,2+c):f=new Uint8Array(0);let p=new Uint8Array(19+f.byteLength),b=new DataView(p.buffer);b.setUint32(0,1332770163,!1),b.setUint32(4,1214603620,!1),b.setUint8(8,1),b.setUint8(9,c),b.setUint16(10,u,!0),b.setUint32(12,l,!0),b.setInt16(16,d,!0),b.setUint8(18,m),p.set(f,19),o.info.codecDescription=p,o.info.numberOfChannels=c}break;case"dfLa":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="audio"),e.skip(4);let c=127,u=128,l=e.filePos;for(;e.filePos>>12,w=(k>>9&7)+1;o.info.sampleRate=T,o.info.numberOfChannels=w,e.skip(20)}else e.skip(h);if(b&u)break}let d=e.filePos;e.filePos=l;let m=V(e,d-l),f=new Uint8Array(4+m.byteLength);new DataView(f.buffer).setUint32(0,1716281667,!1),f.set(m,4),o.info.codecDescription=f}break;case"dac3":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="audio");let c=V(e,3),u=new H(c),l=u.readBits(2);u.skipBits(8);let d=u.readBits(3),m=u.readBits(1);l<3&&(o.info.sampleRate=Ai[l]),o.info.numberOfChannels=Gn[d]+m}break;case"dec3":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="audio");let c=V(e,n.contentSize),u=ud(c);if(!u){z._warn("Invalid dec3 box contents, ignoring.");break}let l=ss(u);l!==null&&(o.info.sampleRate=l),o.info.numberOfChannels=os(u)}break;case"ddts":{let o=this.currentTrack;if(!o)break;g(o.info?.type==="audio");let c=V(e,Math.min(n.contentSize,us)),u=md(c);if(!u){z._warn("Invalid ddts box contents, ignoring.");break}o.info.sampleRate=u.sampleRate,u.numberOfChannels!==null&&(o.info.numberOfChannels=u.numberOfChannels)}break;case"stts":{let o=this.currentTrack;if(!o||!o.sampleTable)break;e.skip(4);let c=M(e),u=0,l=0;for(let d=0;dT.id===c);if(!u)break;let l=M(e),d=(l&48)>>4,m=(l&12)>>2,f=l&3,p=[L,he,Dt,M],b=p[d],h=p[m],y=p[f],k=M(e);for(let T=0;TT.timestamp-w.timestamp);for(let T=0;T({presentationTimestamp:d.presentationTimestamp,sampleIndex:m})).sort((d,m)=>d.presentationTimestamp-m.presentationTimestamp);for(let d=0;dk.id===b);if(!h)break;let y=this.fragmentTrackDefaults.find(k=>k.trackId===b);this.currentTrack=h,h.currentFragmentState={baseDataOffset:this.currentFragment.implicitBaseDataOffset,sampleDescriptionIndex:y?.defaultSampleDescriptionIndex??null,defaultSampleDuration:y?.defaultSampleDuration??null,defaultSampleSize:y?.defaultSampleSize??null,defaultSampleFlags:y?.defaultSampleFlags??null,startTimestamp:null,encryptionAuxInfo:null},c?h.currentFragmentState.baseDataOffset=We(e):p&&(h.currentFragmentState.baseDataOffset=this.currentFragment.moofOffset),u&&(h.currentFragmentState.sampleDescriptionIndex=M(e)),l&&(h.currentFragmentState.defaultSampleDuration=M(e)),d&&(h.currentFragmentState.defaultSampleSize=M(e)),m&&(h.currentFragmentState.defaultSampleFlags=M(e)),f&&(h.currentFragmentState.defaultSampleDuration=0)}break;case"tfdt":{let o=this.currentTrack;if(!o)break;g(o.currentFragmentState);let c=L(e);e.skip(3);let u=c===0?M(e):We(e);o.currentFragmentState.startTimestamp=u}break;case"trun":{let o=this.currentTrack;if(!o)break;g(this.currentFragment),g(o.currentFragmentState),e.skip(1);let c=Dt(e),u=!!(c&1),l=!!(c&4),d=!!(c&256),m=!!(c&512),f=!!(c&1024),p=!!(c&2048),b=M(e),h=null;u&&(h=Ar(e));let y=null;l&&(y=M(e));let k;this.currentFragment.trackData.has(o.id)?(k=this.currentFragment.trackData.get(o.id),h!==null&&(k.currentOffset=o.currentFragmentState.baseDataOffset+h)):(k={track:o,currentTimestamp:0,currentOffset:o.currentFragmentState.baseDataOffset+(h??0),startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,samples:[],presentationTimestamps:[],startTimestampIsFinal:!1,encryptionAuxInfo:null},this.currentFragment.trackData.set(o.id,k));for(let T=0;T0&&(d=V(e,l));let m=Md(o);m.defaultSampleInfoSize=u,m.sampleSizes=d,m.sampleCount=l}break;case"saio":{let o=this.currentTrack;if(!o||!o.encryptionInfo)break;let c=L(e);if(Dt(e)&1){let f=oe(e,4),p=M(e);if(f!==o.encryptionInfo.scheme||p!==0)break}let l=M(e);if(l===0)break;l>1&&z._warn("Multiple saio entries are not supported; using the first offset only.");let d=c===0?M(e):Number(We(e));this.currentFragment&&(d+=this.currentFragment.moofOffset);let m=Md(o);m.offset=d}break;case"senc":{let o=this.currentTrack;if(!o||!o.encryptionInfo)break;g(this.currentFragment);let c=this.currentFragment.trackData.get(o.id);if(!c)break;e.skip(1);let l=!!(Dt(e)&2),d=M(e),m=o.encryptionInfo.defaultPerSampleIvSize;g(m!==null);for(let f=0;f0?p.set(V(e,m),0):p.set(o.encryptionInfo.defaultConstantIv,0);let b=null;if(l){let y=he(e);b=[];for(let k=0;k=2){let f=N(m).getInt16(0,!1);f>0&&(this.metadataTags.beatsPerMinute??=f)}break;case"covr":case"com.apple.quicktime.artwork":m instanceof yt?(this.metadataTags.images??=[],this.metadataTags.images.push({data:m.data,kind:"coverFront",mimeType:m.mimeType})):m instanceof Uint8Array&&(this.metadataTags.images??=[],this.metadataTags.images.push({data:m,kind:"coverFront",mimeType:"image/*"}));break;case"track":if(typeof m=="string"){let f=m.split("/"),p=Number.parseInt(f[0],10),b=f[1]&&Number.parseInt(f[1],10);Number.isInteger(p)&&p>0&&(this.metadataTags.trackNumber??=p),b&&Number.isInteger(b)&&b>0&&(this.metadataTags.tracksTotal??=b)}break;case"trkn":if(m instanceof Uint8Array&&m.length>=6){let f=N(m),p=f.getUint16(2,!1),b=f.getUint16(4,!1);p>0&&(this.metadataTags.trackNumber??=p),b>0&&(this.metadataTags.tracksTotal??=b)}break;case"disc":case"disk":if(m instanceof Uint8Array&&m.length>=6){let f=N(m),p=f.getUint16(2,!1),b=f.getUint16(4,!1);p>0&&(this.metadataTags.discNumber??=p),b>0&&(this.metadataTags.discsTotal??=b)}break}}}break}return e.filePos=s,!0}},Ps=class{constructor(t){this.internalTrack=t;this.packetToSampleIndex=new WeakMap;this.packetToFragmentLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){let t=this.internalTrack.demuxer,e=this.internalTrack.trackBacking.getType(),r=0;for(let n of t.tracks)if(n.trackBacking.getType()===e&&r++,n===this.internalTrack)break;return r}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.internalCodecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.timescale}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return this.internalTrack.maxBitrate}getAverageBitrate(){return this.internalTrack.avgBitrate}async getDurationFromMetadata(){let t=this.internalTrack;return t.durationInMediaTimescale<=0?null:(g(t.trackBacking),((await t.trackBacking.getFirstPacket({metadataOnly:!0}))?.timestamp??0)+t.durationInMediaTimescale/t.timescale)}async getLiveRefreshInterval(){return null}async getFirstPacket(t){let e=await this.fetchPacketForSampleIndex(0,t);return e||!this.internalTrack.demuxer.isFragmented?e:this.performFragmentedLookup(null,r=>r.trackData.get(this.internalTrack.id)?{sampleIndex:0,correctSampleFound:!0}:{sampleIndex:-1,correctSampleFound:!1},-1/0,1/0,t)}mapTimestampIntoTimescale(t){return hr(t*this.internalTrack.timescale)+this.internalTrack.editListOffset}async getPacket(t,e){let r=this.mapTimestampIntoTimescale(t),n=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),a=_c(n,r),s=await this.fetchPacketForSampleIndex(a,e);return!Fd(n)||!this.internalTrack.demuxer.isFragmented?s:this.performFragmentedLookup(null,o=>{let c=o.trackData.get(this.internalTrack.id);if(!c)return{sampleIndex:-1,correctSampleFound:!1};let u=Q(c.presentationTimestamps,r,m=>m.presentationTimestamp),l=u!==-1?c.presentationTimestamps[u].sampleIndex:-1,d=u!==-1&&r{if(a===n.fragment){let s=a.trackData.get(this.internalTrack.id);if(n.sampleIndex+1{let c=o.trackData.get(this.internalTrack.id);if(!c)return{sampleIndex:-1,correctSampleFound:!1};let u=Ur(c.presentationTimestamps,m=>c.samples[m.sampleIndex].isKeyFrame&&m.presentationTimestamp<=r),l=u!==-1?c.presentationTimestamps[u].sampleIndex:-1,d=u!==-1&&r{if(a===n.fragment){let o=a.trackData.get(this.internalTrack.id).samples.findIndex((c,u)=>c.isKeyFrame&&u>n.sampleIndex);if(o!==-1)return{sampleIndex:o,correctSampleFound:!0}}else{let s=a.trackData.get(this.internalTrack.id);if(s&&s.firstKeyFrameTimestamp!==null){let o=s.samples.findIndex(c=>c.isKeyFrame);return g(o!==-1),{sampleIndex:o,correctSampleFound:!0}}}return{sampleIndex:-1,correctSampleFound:!1}},-1/0,1/0,e)}async fetchPacketForSampleIndex(t,e){if(t===-1)return null;let r=this.internalTrack.demuxer.getSampleTableForTrack(this.internalTrack),n=gp(r,t);if(!n)return null;let a;if(e.metadataOnly)a=Te;else{let u=this.internalTrack.demuxer.reader.requestSlice(n.sampleOffset,n.sampleSize);if(_(u)&&(u=await u),!u)return null;if(a=V(u,n.sampleSize),this.internalTrack.encryptionInfo){let l=null;if(this.internalTrack.encryptionAuxInfo){let d=await Vd(this.internalTrack.demuxer.reader,this.internalTrack.encryptionInfo,this.internalTrack.encryptionAuxInfo);th.timestamp),d=l!==-1?this.internalTrack.fragmentLookupTable[l]:null,m=Q(this.internalTrack.fragmentPositionCache,r,h=>h.startTimestamp),f=m!==-1?this.internalTrack.fragmentPositionCache[m]:null,p=Math.max(d?.moofOffset??0,f?.moofOffset??0)||null,b;for(t?p===null||t.moofOffset>=p?(b=t.moofOffset+t.moofSize,o=t):b=p:b=p??0;;){if(o){let T=o.trackData.get(this.internalTrack.id);if(T&&T.startTimestamp>n)break}let h=s.reader.requestSliceRange(b,Mt,wr);if(_(h)&&(h=await h),!h)break;let y=b,k=Sr(h);if(!k)break;if(k.name==="moof"){o=await s.readFragment(y);let{sampleIndex:T,correctSampleFound:w}=e(o);if(w)return this.fetchPacketInFragment(o,T,a);T!==-1&&(c=o,u=T)}b=y+k.totalSize}if(d&&(!c||c.moofOffset{if(this.internalTrack.info.codec==="avc"&&!this.internalTrack.info.codecDescription){let r=await this.getFirstPacket({});this.internalTrack.info.avcCodecInfo=r&&Zt(r.data)}else if(this.internalTrack.info.codec==="hevc"&&!this.internalTrack.info.codecDescription){let r=await this.getFirstPacket({});this.internalTrack.info.hevcCodecInfo=r&&er(r.data)}else if(this.internalTrack.info.codec==="vp9"&&(!this.internalTrack.info.vp9CodecInfo||!nd(this.internalTrack.info.vp9CodecInfo))){let r=await this.getFirstPacket({}),n=r&&Zi(r.data);n&&(this.internalTrack.info.vp9CodecInfo={...this.internalTrack.info.vp9CodecInfo??n,videoFullRangeFlag:n.videoFullRangeFlag,colourPrimaries:n.colourPrimaries,transferCharacteristics:n.transferCharacteristics,matrixCoefficients:n.matrixCoefficients})}else if(this.internalTrack.info.codec==="av1"&&(!this.internalTrack.info.av1CodecInfo||!ts(this.internalTrack.info.av1CodecInfo))){let r=await this.getFirstPacket({}),n=r&&Ci(r.data);n&&(this.internalTrack.info.av1CodecInfo=n)}else if(this.internalTrack.info.codec==="prores"&&!this.internalTrack.info.proresCodecInfo){let r=await this.getFirstPacket({});this.internalTrack.info.proresCodecInfo=r&&rs(r.data)}if(!Ki(this.internalTrack.info.colorSpace)){let r=ps(this.internalTrack.info);this.internalTrack.info.colorSpace.primaries??=r.primaries,this.internalTrack.info.colorSpace.transfer??=r.transfer,this.internalTrack.info.colorSpace.matrix??=r.matrix,this.internalTrack.info.colorSpace.fullRange??=r.fullRange}let e={codec:Kr(this.internalTrack.info),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return(this.internalTrack.info.width!==this.internalTrack.info.squarePixelWidth||this.internalTrack.info.height!==this.internalTrack.info.squarePixelHeight)&&(e.displayAspectWidth=this.internalTrack.info.squarePixelWidth,e.displayAspectHeight=this.internalTrack.info.squarePixelHeight),e})():null}},Es=class extends Ps{constructor(e){super(e);this.decoderConfigPromise=null}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??=(async()=>{if(this.internalTrack.info.codec==="dts"&&!this.internalTrack.info.dtsFormat){let e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&ls(e.data)}return{codec:Ji(this.internalTrack.info),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})():null}},_c=(i,t)=>{if(i.presentationTimestamps){let e=Q(i.presentationTimestamps,t,r=>r.presentationTimestamp);return e===-1?-1:i.presentationTimestamps[e].sampleIndex}else{let e=Q(i.sampleTimingEntries,t,n=>n.startDecodeTimestamp);if(e===-1)return-1;let r=i.sampleTimingEntries[e];return r.startIndex+Math.min(Math.floor((t-r.startDecodeTimestamp)/r.delta),r.count-1)}},hp=(i,t)=>{if(!i.keySampleIndices)return _c(i,t);if(i.presentationTimestamps){let e=Q(i.presentationTimestamps,t,r=>r.presentationTimestamp);if(e===-1)return-1;for(let r=e;r>=0;r--){let n=i.presentationTimestamps[r].sampleIndex;if(pr(i.keySampleIndices,n,s=>s)!==-1)return n}return-1}else{let e=_c(i,t),r=Q(i.keySampleIndices,e,n=>n);return i.keySampleIndices[r]??-1}},gp=(i,t)=>{let e=Q(i.sampleTimingEntries,t,y=>y.startIndex),r=i.sampleTimingEntries[e];if(!r||r.startIndex+r.count<=t)return null;let a=r.startDecodeTimestamp+(t-r.startIndex)*r.delta,s=Q(i.sampleCompositionTimeOffsets,t,y=>y.startIndex),o=i.sampleCompositionTimeOffsets[s];o&&t-o.startIndexy.startSampleIndex),l=i.sampleToChunk[u];g(l);let d=l.startChunkIndex+Math.floor((t-l.startSampleIndex)/l.samplesPerChunk),m=i.chunkOffsets[d],f=l.startSampleIndex+(d-l.startChunkIndex)*l.samplesPerChunk,p=0,b=m;if(i.sampleSizes.length===1)b+=c*(t-f),p+=c*l.samplesPerChunk;else for(let y=f;yy)!==-1:!0}},bp=(i,t)=>{if(!i.keySampleIndices)return t+1;let e=Q(i.keySampleIndices,t,r=>r);return i.keySampleIndices[e+1]??-1},vc=(i,t)=>{i.startTimestamp+=t,i.endTimestamp+=t;for(let e of i.samples)e.presentationTimestamp+=t;for(let e of i.presentationTimestamps)e.presentationTimestamp+=t},_d=i=>[$r(i),$r(i),As(i),$r(i),$r(i),As(i),$r(i),$r(i),As(i)],Rd=(i,t)=>{let e=i.info;if(e.type!=="video")return;let{num:r,den:n}=t;!(r>0&&n>0)||r===n||(r>n?(e.squarePixelWidth=Math.round(e.width*r/n),e.squarePixelHeight=e.height):(e.squarePixelWidth=e.width,e.squarePixelHeight=Math.round(e.height*n/r)))},Fd=i=>i.sampleSizes.length===0,Md=i=>i.currentFragmentState?i.currentFragmentState.encryptionAuxInfo??={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null}:i.encryptionAuxInfo??={defaultSampleInfoSize:0,sampleSizes:null,sampleCount:0,offset:null,resolved:null},Vd=async(i,t,e)=>{if(e.resolved)return e.resolved;if(e.offset===null||e.sampleCount===0)throw new Error("Incomplete saiz/saio info; cannot resolve encryption data.");let r=0;if(e.defaultSampleInfoSize>0)r=e.defaultSampleInfoSize*e.sampleCount;else{g(e.sampleSizes);for(let o=0;o0?e.defaultSampleInfoSize:e.sampleSizes[o],u=new Uint8Array(16);a>0?u.set(V(n,a),0):u.set(t.defaultConstantIv,0);let l=null;if(c>a){let d=he(n);l=[];for(let m=0;mi.defaultConstantIv?{iv:i.defaultConstantIv,subsamples:null}:null,Od=async(i,t,e,r)=>{g(i.encryptionInfo);let n=i.encryptionInfo;g(n.defaultKid!==null);let a=n.defaultKid,s,o=i.demuxer.decryptionKeyCache.get(a);if(o)s=await o;else{if(!i.demuxer.input._formatOptions.isobmff?.resolveKeyId)throw new Error("Encrypted media samples encountered. To decrypt them, please provide a callback for InputOptions.formatOptions.isobmff.resolveKeyId.");let c=(async()=>{let u=i.demuxer.psshBoxes;if(r){u=[...u,...r.psshBoxes].filter(d=>d.keyIds===null||d.keyIds.includes(a));for(let d=0;d{let n=new Uint8Array(16);n.set(e.iv,0);let a=await crypto.subtle.importKey("raw",i,{name:"AES-CTR"},!1,["decrypt"]),s=async p=>{let b=await crypto.subtle.decrypt({name:"AES-CTR",counter:n,length:64},a,p);return new Uint8Array(b)};if(!e.subsamples)return s(r);g(t.defaultCryptByteBlock!==null&&t.defaultSkipByteBlock!==null);let o=Ud(e.subsamples,t.defaultCryptByteBlock,t.defaultSkipByteBlock),c=0;for(let p of o)for(let b of p.perSubsample)c+=b.length;let u=new Uint8Array(c),l=0;for(let p of o)for(let b of p.perSubsample)u.set(r.subarray(b.offset,b.offset+b.length),l),l+=b.length;let d=await s(u),m=new Uint8Array(r),f=0;for(let p of o)for(let b of p.perSubsample)m.set(d.subarray(f,f+b.length),b.offset),f+=b.length;return m},kp=(i,t,e,r)=>{let n=new ea;n.init({key:i,iv:e.iv});let a=t.defaultCryptByteBlock,s=t.defaultSkipByteBlock;if(g(a!==null&&s!==null),!e.subsamples){let l=new Uint8Array(r),d=Math.floor(r.length/16);for(let m=0;m{let r=[],n=t!==0||e!==0,a=0;for(let s of i){a+=s.clearLen;let o=[];if(!n)s.protectedLen>0&&o.push({offset:a,length:s.protectedLen}),a+=s.protectedLen;else{let c=s.protectedLen,u=a;for(;c>0&&!(c<16*t);){let l=16*t;o.push({offset:u,length:l}),u+=l,c-=l;let d=Math.min(16*e,c);u+=d,c-=d}a+=s.protectedLen}r.push({perSubsample:o})}return r};var Yr=class{constructor(t){this.value=t}},sn=class{constructor(t){this.value=t}},ra=class{constructor(t){this.value=t}},Vt=class{constructor(t){this.value=t}};var Tp=[440786851,408125543],on=[290298740,357149030,524531317,374648427,475249515,423732329,272869232,307544935],ia=[...Tp,...on],Nd=i=>i<256?1:i<65536?2:i<1<<24?3:i<2**32?4:i<2**40?5:6,Ld=i=>i<1n<<8n?1:i<1n<<16n?2:i<1n<<24n?3:i<1n<<32n?4:i<1n<<40n?5:i<1n<<48n?6:i<1n<<56n?7:8,Wd=i=>i>=-64&&i<64?1:i>=-8192&&i<8192?2:i>=-(1<<20)&&i<1<<20?3:i>=-(1<<27)&&i<1<<27?4:i>=-(2**34)&&i<2**34?5:6,wp=i=>{if(i<127)return 1;if(i<16383)return 2;if(i<(1<<21)-1)return 3;if(i<(1<<28)-1)return 4;if(i<2**35-1)return 5;if(i<2**42-1)return 6;throw new Error("EBML varint size not supported "+i)},_s=class{constructor(t){this.writer=t;this.helper=new Uint8Array(8);this.helperView=new DataView(this.helper.buffer);this.offsets=new WeakMap;this.dataOffsets=new WeakMap}writeByte(t){this.helperView.setUint8(0,t),this.writer.write(this.helper.subarray(0,1))}writeFloat32(t){this.helperView.setFloat32(0,t,!1),this.writer.write(this.helper.subarray(0,4))}writeFloat64(t){this.helperView.setFloat64(0,t,!1),this.writer.write(this.helper)}writeUnsignedInt(t,e=Nd(t)){let r=0;switch(e){case 6:this.helperView.setUint8(r++,t/2**40|0);case 5:this.helperView.setUint8(r++,t/2**32|0);case 4:this.helperView.setUint8(r++,t>>24);case 3:this.helperView.setUint8(r++,t>>16);case 2:this.helperView.setUint8(r++,t>>8);case 1:this.helperView.setUint8(r++,t);break;default:throw new Error("Bad unsigned int size "+e)}this.writer.write(this.helper.subarray(0,r))}writeUnsignedBigInt(t,e=Ld(t)){let r=0;for(let n=e-1;n>=0;n--)this.helperView.setUint8(r++,Number(t>>BigInt(n*8)&0xffn));this.writer.write(this.helper.subarray(0,r))}writeSignedInt(t,e=Wd(t)){t<0&&(t+=2**(e*8)),this.writeUnsignedInt(t,e)}writeVarInt(t,e=wp(t)){let r=0;switch(e){case 1:this.helperView.setUint8(r++,128|t);break;case 2:this.helperView.setUint8(r++,64|t>>8),this.helperView.setUint8(r++,t);break;case 3:this.helperView.setUint8(r++,32|t>>16),this.helperView.setUint8(r++,t>>8),this.helperView.setUint8(r++,t);break;case 4:this.helperView.setUint8(r++,16|t>>24),this.helperView.setUint8(r++,t>>16),this.helperView.setUint8(r++,t>>8),this.helperView.setUint8(r++,t);break;case 5:this.helperView.setUint8(r++,8|t/2**32&7),this.helperView.setUint8(r++,t>>24),this.helperView.setUint8(r++,t>>16),this.helperView.setUint8(r++,t>>8),this.helperView.setUint8(r++,t);break;case 6:this.helperView.setUint8(r++,4|t/2**40&3),this.helperView.setUint8(r++,t/2**32|0),this.helperView.setUint8(r++,t>>24),this.helperView.setUint8(r++,t>>16),this.helperView.setUint8(r++,t>>8),this.helperView.setUint8(r++,t);break;default:throw new Error("Bad EBML varint size "+e)}this.writer.write(this.helper.subarray(0,r))}writeAsciiString(t){this.writer.write(new Uint8Array(t.split("").map(e=>e.charCodeAt(0))))}writeEBML(t){if(t!==null)if(t instanceof Uint8Array)this.writer.write(t);else if(Array.isArray(t))for(let e of t)this.writeEBML(e);else if(this.offsets.set(t,this.writer.getPos()),this.writeUnsignedInt(t.id),Array.isArray(t.data)){let e=this.writer.getPos(),r=t.size===-1?1:t.size??4;t.size===-1?this.writeByte(255):this.writer.seek(this.writer.getPos()+r);let n=this.writer.getPos();if(this.dataOffsets.set(t,n),this.writeEBML(t.data),t.size!==-1){let a=this.writer.getPos()-n,s=this.writer.getPos();this.writer.seek(e),this.writeVarInt(a,r),this.writer.seek(s)}}else if(typeof t.data=="number"){let e=t.size??Nd(t.data);this.writeVarInt(e),this.writeUnsignedInt(t.data,e)}else if(typeof t.data=="bigint"){let e=t.size??Ld(t.data);this.writeVarInt(e),this.writeUnsignedBigInt(t.data,e)}else if(typeof t.data=="string")this.writeVarInt(t.data.length),this.writeAsciiString(t.data);else if(t.data instanceof Uint8Array)this.writeVarInt(t.data.byteLength,t.size),this.writer.write(t.data);else if(t.data instanceof Yr)this.writeVarInt(4),this.writeFloat32(t.data.value);else if(t.data instanceof sn)this.writeVarInt(8),this.writeFloat64(t.data.value);else if(t.data instanceof ra){let e=t.size??Wd(t.data.value);this.writeVarInt(e),this.writeSignedInt(t.data.value,e)}else if(t.data instanceof Vt){let e=Y.encode(t.data.value);this.writeVarInt(e.length),this.writer.write(e)}else ne(t.data)}},Rc=8,je=2,Tt=2*Rc,Fc=i=>{if(i.remainingLength<1)return null;let t=L(i);if(i.skip(-1),t===0)return null;let e=1,r=128;for(;(t&r)===0;)e++,r>>=1;return i.remainingLength{if(i.remainingLength<1)return null;let t=L(i);if(t===0)return null;let e=1,r=128;for(;(t&r)===0;)e++,r>>=1;if(i.remainingLength{if(t<1||t>8)throw new Error("Bad unsigned int size "+t);let e=0;for(let r=0;r{if(t<1)throw new Error("Bad unsigned int size "+t);let e=0n;for(let r=0;r{let t=Fc(i);return t===null||i.remainingLength{if(i.remainingLength<1)return null;if(L(i)===255)return;i.skip(-1);let e=cn(i);if(e===null)return null;if(e!==72057594037927940)return e},wt=i=>{g(i.remainingLength>=je);let t=Rs(i);if(t===null)return null;let e=Mc(i);return e===null?null:{id:t,size:e}},Zr=(i,t)=>{let e=V(i,t),r=0;for(;r{let e=V(i,t),r=0;for(;r{if(t===0)return 0;if(t!==4&&t!==8)throw new Error("Bad float size "+t);return t===4?qd(i):vs(i)},Fs=async(i,t,e,r)=>{let n=new Set(e),a=t;for(;r===null||aa?r:a,found:!1}},Bc=async(i,t,e,r)=>{let a=new Set(e),s=t;for(;s{let e=(i.hasVideo?"video/":i.hasAudio?"audio/":"application/")+(i.isWebM?"webm":"x-matroska");if(i.codecStrings.length>0){let r=[...new Set(i.codecStrings.filter(Boolean))];e+=`; codecs="${r.join(", ")}"`}return e};var Oc=[{id:290298740,flag:"seekHeadSeen"},{id:357149030,flag:"infoSeen"},{id:374648427,flag:"tracksSeen"},{id:475249515,flag:"cuesSeen"}],Qd=10*2**20,Bs=class extends Ae{constructor(e){super(e);this.readMetadataPromise=null;this.segments=[];this.currentSegment=null;this.currentTrack=null;this.currentCluster=null;this.currentBlock=null;this.currentBlockAdditional=null;this.currentCueTime=null;this.currentDecodingInstruction=null;this.currentTagTargetIsMovie=!0;this.currentSimpleTagName=null;this.currentAttachedFile=null;this.isWebM=!1;this.reader=e._reader}async getTrackBackings(){return await this.readMetadata(),this.segments.flatMap(e=>e.tracks.map(r=>r.trackBacking))}async getMimeType(){await this.readMetadata();let e=await this.getTrackBackings(),r=await Promise.all(e.map(n=>n.getDecoderConfig().then(a=>a?.codec??null)));return Ms({isWebM:this.isWebM,hasVideo:this.segments.some(n=>n.tracks.some(a=>a.info?.type==="video")),hasAudio:this.segments.some(n=>n.tracks.some(a=>a.info?.type==="audio")),codecStrings:r.filter(Boolean)})}async getMetadataTags(){await this.readMetadata();for(let r of this.segments)r.metadataTagsCollected||(this.reader.fileSize!==null&&await this.loadSegmentMetadata(r),r.metadataTagsCollected=!0);let e={};for(let r of this.segments)e={...e,...r.metadataTags};return e}readMetadata(){return this.readMetadataPromise??=(async()=>{let e=0;for(;;){let r=this.reader.requestSliceRange(e,je,Tt);if(_(r)&&(r=await r),!r)break;let n=wt(r);if(!n)break;let a=n.id,s=n.size,o=r.filePos;if(a===440786851){rr(s);let c=this.reader.requestSlice(o,s);if(_(c)&&(c=await c),!c)break;this.readContiguousElements(c)}else if(a===408125543){if(await this.readSegment(o,s),s===void 0||this.reader.fileSize===null)break}else if(a===524531317){if(this.reader.fileSize===null)break;s===void 0&&(s=(await Fs(this.reader,o,ia,this.reader.fileSize)).pos-o);let c=Z(this.segments);c&&(c.elementEndPos=o+s)}rr(s),e=o+s}})()}async readSegment(e,r){this.currentSegment={seekHeadSeen:!1,infoSeen:!1,tracksSeen:!1,cuesSeen:!1,tagsSeen:!1,attachmentsSeen:!1,timestampScale:-1,timestampFactor:-1,duration:-1,seekEntries:[],tracks:[],cuePoints:[],dataStartPos:e,elementEndPos:r===void 0?null:e+r,clusterSeekStartPos:e,lastReadCluster:null,metadataTags:{},metadataTagsCollected:!1},this.segments.push(this.currentSegment);let n=e,a=new Set;for(;this.currentSegment.elementEndPos===null||nh.id===m);if(b!==-1){let h=Oc[b].flag;this.currentSegment[h]=!0,m===290298740&&a.add(l-e),rr(f);let y=this.reader.requestSlice(p,f);_(y)&&(y=await y),y&&this.readContiguousElements(y)}else if(m===307544935||m===423732329){m===307544935?this.currentSegment.tagsSeen=!0:this.currentSegment.attachmentsSeen=!0,rr(f);let h=this.reader.requestSlice(p,f);_(h)&&(h=await h),h&&this.readContiguousElements(h)}else if(m===524531317){this.currentSegment.clusterSeekStartPos=l;break}if(f===void 0)break;n=p+f}if(this.reader.fileSize!==null)for(;;){let u=this.currentSegment.seekEntries.find(p=>p.id===290298740&&!a.has(p.segmentPosition));if(!u)break;a.add(u.segmentPosition);let l=this.reader.requestSliceRange(e+u.segmentPosition,je,Tt);if(_(l)&&(l=await l),!l)continue;let d=wt(l);if(!d||d.id!==290298740)continue;let{size:m}=d;rr(m);let f=this.reader.requestSlice(l.filePos,m);_(f)&&(f=await f),f&&this.readContiguousElements(f)}if(this.currentSegment.seekEntries.sort((u,l)=>u.segmentPosition-l.segmentPosition),this.reader.fileSize!==null)for(let u of this.currentSegment.seekEntries){let l=Oc.find(h=>h.id===u.id);if(!l||this.currentSegment[l.flag])continue;let d=this.reader.requestSliceRange(e+u.segmentPosition,je,Tt);if(_(d)&&(d=await d),!d)continue;let m=wt(d);if(!m)continue;let{id:f,size:p}=m;if(f!==l.id)continue;rr(p),this.currentSegment[l.flag]=!0;let b=this.reader.requestSlice(d.filePos,p);_(b)&&(b=await b),b&&this.readContiguousElements(b)}this.currentSegment.timestampScale===-1&&(this.currentSegment.timestampScale=1e6,this.currentSegment.timestampFactor=1e9/1e6);for(let u of this.currentSegment.tracks)u.defaultDurationNs!==null&&(u.defaultDuration=this.currentSegment.timestampFactor*u.defaultDurationNs/1e9);let s=new Map(this.currentSegment.tracks.map(u=>[u.id,u]));for(let u of this.currentSegment.cuePoints){let l=s.get(u.trackId);l&&l.cuePoints.push(u)}for(let u of this.currentSegment.tracks){u.cuePoints.sort((l,d)=>l.time-d.time);for(let l=0;lc&&(c=u.cuePoints.length,o=u);for(let u of this.currentSegment.tracks)u.cuePoints.length===0&&(u.cuePoints=o.cuePoints);this.currentSegment=null}async readCluster(e,r){if(r.lastReadCluster?.elementStartPos===e)return r.lastReadCluster;let n=this.reader.requestSliceRange(e,je,Tt);_(n)&&(n=await n),g(n);let a=e,s=wt(n);g(s);let o=s.id;g(o===524531317);let c=s.size,u=n.filePos;c===void 0&&(c=(await Fs(this.reader,u,ia,r.elementEndPos)).pos-u);let l=this.reader.requestSlice(u,c);_(l)&&(l=await l);let d={segment:r,elementStartPos:a,elementEndPos:u+c,dataStartPos:u,timestamp:-1,trackData:new Map};if(this.currentCluster=d,l){let m=this.readContiguousElements(l,ia);d.elementEndPos=m}for(let[,m]of d.trackData){let f=m.track;g(m.blocks.length>0);let p=!1;for(let k=0;k({timestamp:k.timestamp,blockIndex:T})).sort((k,T)=>k.timestamp-T.timestamp);for(let k=0;k({timestamp:k.timestamp,blockIndex:T})).sort((k,T)=>k.timestamp-T.timestamp));let b=m.blocks[m.presentationTimestamps[0].blockIndex],h=m.blocks[Z(m.presentationTimestamps).blockIndex];m.startTimestamp=b.timestamp,m.endTimestamp=h.timestamp+h.duration;let y=Q(f.clusterPositionCache,m.startTimestamp,k=>k.startTimestamp);(y===-1||f.clusterPositionCache[y].elementStartPos!==a)&&f.clusterPositionCache.splice(y+1,0,{elementStartPos:d.elementStartPos,startTimestamp:m.startTimestamp})}return r.lastReadCluster=d,d}getTrackDataInCluster(e,r){let n=e.trackData.get(r);if(!n){let a=e.segment.tracks.find(s=>s.id===r);if(!a)return null;n={track:a,startTimestamp:0,endTimestamp:0,firstKeyFrameTimestamp:null,blocks:[],presentationTimestamps:[]},e.trackData.set(r,n)}return n}expandLacedBlocks(e,r){for(let n=0;n=je;){let n=e.filePos;if(!this.traverseElement(e,r))return n}return e.filePos}traverseElement(e,r){let n=wt(e);if(!n||r&&r.includes(n.id))return!1;let{id:a,size:s}=n,o=e.filePos;switch(rr(s),a){case 17026:this.isWebM=Zr(e,s)==="webm";break;case 19899:{if(!this.currentSegment)break;let c={id:-1,segmentPosition:-1};this.currentSegment.seekEntries.push(c),this.readContiguousElements(e.slice(o,s)),(c.id===-1||c.segmentPosition===-1)&&this.currentSegment.seekEntries.pop()}break;case 21419:{let c=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!c)break;c.id=G(e,s)}break;case 21420:{let c=this.currentSegment?.seekEntries[this.currentSegment.seekEntries.length-1];if(!c)break;c.segmentPosition=G(e,s)}break;case 2807729:{if(!this.currentSegment)break;this.currentSegment.timestampScale=G(e,s),this.currentSegment.timestampFactor=1e9/this.currentSegment.timestampScale}break;case 17545:{if(!this.currentSegment)break;this.currentSegment.duration=ln(e,s)}break;case 174:{if(!this.currentSegment||(this.currentTrack={id:-1,segment:this.currentSegment,demuxer:this,clusterPositionCache:[],cuePoints:[],disposition:{..._e,primary:!1},trackBacking:null,codecId:null,codecPrivate:null,defaultDuration:null,defaultDurationNs:null,name:null,languageCode:"eng",hasLanguageBcp47:!1,decodingInstructions:[],info:null},this.readContiguousElements(e.slice(o,s)),!this.currentTrack))break;if(this.currentTrack.decodingInstructions.some(c=>c.data?.type!=="decompress"||c.scope!==1||c.data.algorithm!==3)&&(z._warn(`Track #${this.currentTrack.id} has an unsupported content encoding; dropping.`),this.currentTrack=null),this.currentTrack&&this.currentTrack.id!==-1&&this.currentTrack.codecId&&this.currentTrack.info){let c=this.currentTrack.codecId.indexOf("/"),u=c===-1?this.currentTrack.codecId:this.currentTrack.codecId.slice(0,c);if(this.currentTrack.info.type==="video"&&this.currentTrack.info.width!==-1&&this.currentTrack.info.height!==-1){if(this.currentTrack.info.squarePixelWidth=this.currentTrack.info.width,this.currentTrack.info.squarePixelHeight=this.currentTrack.info.height,this.currentTrack.info.displayWidth!==null&&this.currentTrack.info.displayHeight!==null){let d=this.currentTrack.info.displayWidth*this.currentTrack.info.height,m=this.currentTrack.info.displayHeight*this.currentTrack.info.width;d>0&&m>0&&(d>m?this.currentTrack.info.squarePixelWidth=Math.round(this.currentTrack.info.width*d/m):this.currentTrack.info.squarePixelHeight=Math.round(this.currentTrack.info.height*m/d))}if(this.currentTrack.codecId===Ve.avc)this.currentTrack.info.codec="avc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(this.currentTrack.codecId===Ve.hevc)this.currentTrack.info.codec="hevc",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate;else if(u===Ve.vp8)this.currentTrack.info.codec="vp8";else if(u===Ve.vp9)this.currentTrack.info.codec="vp9";else if(u===Ve.av1)this.currentTrack.info.codec="av1";else if(u===Ve.prores){let d=this.currentTrack.codecPrivate?ye.decode(this.currentTrack.codecPrivate):"";Tr.includes(d)&&(this.currentTrack.info.codec="prores",this.currentTrack.info.proresFormat=d)}let l=this.currentTrack;this.currentTrack.trackBacking=new Dc(l),this.currentSegment.tracks.push(this.currentTrack)}else if(this.currentTrack.info.type==="audio"){u===Ve.aac?(this.currentTrack.info.codec="aac",this.currentTrack.info.aacCodecInfo={isMpeg2:this.currentTrack.codecId.includes("MPEG2"),objectType:null},this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):this.currentTrack.codecId===Ve.mp3?this.currentTrack.info.codec="mp3":u===Ve.opus?(this.currentTrack.info.codec="opus",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate,this.currentTrack.info.sampleRate=Ft):u===Ve.vorbis?(this.currentTrack.info.codec="vorbis",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):u===Ve.flac?(this.currentTrack.info.codec="flac",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):u===Ve.ac3?(this.currentTrack.info.codec="ac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):u===Ve.eac3?(this.currentTrack.info.codec="eac3",this.currentTrack.info.codecDescription=this.currentTrack.codecPrivate):u===Ve.dts?(this.currentTrack.info.codec="dts",this.currentTrack.codecId==="A_DTS/EXPRESS"?this.currentTrack.info.dtsFormat="dtse":this.currentTrack.codecId==="A_DTS/LOSSLESS"&&(this.currentTrack.info.dtsFormat="dtsl")):this.currentTrack.codecId==="A_PCM/INT/LIT"?this.currentTrack.info.bitDepth===8?this.currentTrack.info.codec="pcm-u8":this.currentTrack.info.bitDepth===16?this.currentTrack.info.codec="pcm-s16":this.currentTrack.info.bitDepth===24?this.currentTrack.info.codec="pcm-s24":this.currentTrack.info.bitDepth===32&&(this.currentTrack.info.codec="pcm-s32"):this.currentTrack.codecId==="A_PCM/INT/BIG"?this.currentTrack.info.bitDepth===8?this.currentTrack.info.codec="pcm-u8":this.currentTrack.info.bitDepth===16?this.currentTrack.info.codec="pcm-s16be":this.currentTrack.info.bitDepth===24?this.currentTrack.info.codec="pcm-s24be":this.currentTrack.info.bitDepth===32&&(this.currentTrack.info.codec="pcm-s32be"):this.currentTrack.codecId==="A_PCM/FLOAT/IEEE"&&(this.currentTrack.info.bitDepth===32?this.currentTrack.info.codec="pcm-f32":this.currentTrack.info.bitDepth===64&&(this.currentTrack.info.codec="pcm-f64"));let l=this.currentTrack;this.currentTrack.trackBacking=new Vc(l),this.currentSegment.tracks.push(this.currentTrack)}}this.currentTrack=null}break;case 215:{if(!this.currentTrack)break;this.currentTrack.id=G(e,s)}break;case 131:{if(!this.currentTrack)break;let c=G(e,s);c===1?this.currentTrack.info={type:"video",width:-1,height:-1,displayWidth:null,displayHeight:null,displayUnit:null,squarePixelWidth:-1,squarePixelHeight:-1,horizontalScale:1,verticalScale:1,rotation:0,codec:null,codecDescription:null,colorSpace:{...Na},alphaMode:!1,proresFormat:null}:c===2&&(this.currentTrack.info={type:"audio",numberOfChannels:1,sampleRate:8e3,bitDepth:-1,codec:null,codecDescription:null,aacCodecInfo:null,dtsFormat:null})}break;case 185:{if(!this.currentTrack)break;G(e,s)||(this.currentTrack=null)}break;case 136:{if(!this.currentTrack)break;this.currentTrack.disposition.default=!!G(e,s)}break;case 21930:{if(!this.currentTrack)break;this.currentTrack.disposition.forced=!!G(e,s)}break;case 21934:{if(!this.currentTrack)break;this.currentTrack.disposition.original=!!G(e,s)}break;case 21931:{if(!this.currentTrack)break;this.currentTrack.disposition.hearingImpaired=!!G(e,s)}break;case 21932:{if(!this.currentTrack)break;this.currentTrack.disposition.visuallyImpaired=!!G(e,s)}break;case 21935:{if(!this.currentTrack)break;this.currentTrack.disposition.commentary=!!G(e,s)}break;case 134:{if(!this.currentTrack)break;this.currentTrack.codecId=Zr(e,s)}break;case 25506:{if(!this.currentTrack)break;this.currentTrack.codecPrivate=V(e,s)}break;case 2352003:{if(!this.currentTrack)break;this.currentTrack.defaultDurationNs=G(e,s)}break;case 21358:{if(!this.currentTrack)break;this.currentTrack.name=un(e,s)}break;case 2274716:{if(!this.currentTrack||this.currentTrack.hasLanguageBcp47)break;this.currentTrack.languageCode=Zr(e,s),gr(this.currentTrack.languageCode)||(this.currentTrack.languageCode=se)}break;case 2274717:{if(!this.currentTrack)break;let u=Zr(e,s).split("-")[0];u?this.currentTrack.languageCode=u:this.currentTrack.languageCode=se,this.currentTrack.hasLanguageBcp47=!0}break;case 224:{if(this.currentTrack?.info?.type!=="video")break;this.readContiguousElements(e.slice(o,s))}break;case 176:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.width=G(e,s)}break;case 186:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.height=G(e,s)}break;case 21680:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.displayWidth=G(e,s)}break;case 21690:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.displayHeight=G(e,s)}break;case 21682:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.displayUnit=G(e,s)}break;case 21440:{if(this.currentTrack?.info?.type!=="video")break;this.currentTrack.info.alphaMode=G(e,s)===1}break;case 21936:{if(this.currentTrack?.info?.type!=="video")break;this.readContiguousElements(e.slice(o,s))}break;case 21937:{if(this.currentTrack?.info?.type!=="video")break;let c=G(e,s),u=dt[c];this.currentTrack.info.colorSpace.matrix=u}break;case 21945:{if(this.currentTrack?.info?.type!=="video")break;let c=G(e,s);this.currentTrack.info.colorSpace.fullRange=c===1||c===2?c===2:void 0}break;case 21946:{if(this.currentTrack?.info?.type!=="video")break;let c=G(e,s),u=lt[c];this.currentTrack.info.colorSpace.transfer=u}break;case 21947:{if(this.currentTrack?.info?.type!=="video")break;let c=G(e,s),u=ut[c];this.currentTrack.info.colorSpace.primaries=u}break;case 30320:{if(this.currentTrack?.info?.type!=="video")break;this.readContiguousElements(e.slice(o,s))}break;case 30323:{if(this.currentTrack?.info?.type!=="video")break;let c=ln(e,s);try{let u=mr(c);this.currentTrack.info.horizontalScale=Math.round(Math.cos(u*Ba))}catch{}}break;case 30324:{if(this.currentTrack?.info?.type!=="video")break;let c=ln(e,s);try{let u=mr(c);this.currentTrack.info.verticalScale=Math.round(Math.cos(u*Ba))}catch{}}break;case 30325:{if(this.currentTrack?.info?.type!=="video")break;let u=-ln(e,s);try{this.currentTrack.info.rotation=mr(u)}catch{}}break;case 225:{if(this.currentTrack?.info?.type!=="audio")break;this.readContiguousElements(e.slice(o,s))}break;case 181:{if(this.currentTrack?.info?.type!=="audio")break;this.currentTrack.info.sampleRate=ln(e,s)}break;case 159:{if(this.currentTrack?.info?.type!=="audio")break;this.currentTrack.info.numberOfChannels=G(e,s)}break;case 25188:{if(this.currentTrack?.info?.type!=="audio")break;this.currentTrack.info.bitDepth=G(e,s)}break;case 187:{if(!this.currentSegment)break;this.readContiguousElements(e.slice(o,s)),this.currentCueTime=null}break;case 179:this.currentCueTime=G(e,s);break;case 183:{if(this.currentCueTime===null)break;g(this.currentSegment);let c={time:this.currentCueTime,trackId:-1,clusterPosition:-1};this.currentSegment.cuePoints.push(c),this.readContiguousElements(e.slice(o,s)),(c.trackId===-1||c.clusterPosition===-1)&&this.currentSegment.cuePoints.pop()}break;case 247:{let c=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!c)break;c.trackId=G(e,s)}break;case 241:{let c=this.currentSegment?.cuePoints[this.currentSegment.cuePoints.length-1];if(!c)break;g(this.currentSegment),c.clusterPosition=this.currentSegment.dataStartPos+G(e,s)}break;case 231:{if(!this.currentCluster)break;this.currentCluster.timestamp=G(e,s)}break;case 163:{if(!this.currentCluster)break;let c=cn(e);if(c===null)break;let u=this.getTrackDataInCluster(this.currentCluster,c);if(!u)break;let l=ta(e),d=L(e),m=d>>1&3,f=!!(d&128);u.track.info?.type==="audio"&&u.track.info.codec&&(f=!0);let p=V(e,s-(e.filePos-o)),b=u.track.decodingInstructions.length>0;u.blocks.push({timestamp:l,duration:0,isKeyFrame:f,data:p,lacing:m,decoded:!b,postProcessed:!1,mainAdditional:null})}break;case 160:{if(!this.currentCluster)break;this.readContiguousElements(e.slice(o,s)),this.currentBlock=null}break;case 161:{if(!this.currentCluster)break;let c=cn(e);if(c===null)break;let u=this.getTrackDataInCluster(this.currentCluster,c);if(!u)break;let l=ta(e),m=L(e)>>1&3,f=V(e,s-(e.filePos-o)),p=u.track.decodingInstructions.length>0;this.currentBlock={timestamp:l,duration:0,isKeyFrame:!0,data:f,lacing:m,decoded:!p,postProcessed:!1,mainAdditional:null},u.blocks.push(this.currentBlock)}break;case 30113:this.readContiguousElements(e.slice(o,s));break;case 166:{if(!this.currentBlock)break;this.currentBlockAdditional={addId:1,data:null},this.readContiguousElements(e.slice(o,s)),this.currentBlockAdditional.data&&this.currentBlockAdditional.addId===1&&(this.currentBlock.mainAdditional=this.currentBlockAdditional.data),this.currentBlockAdditional=null}break;case 165:{if(!this.currentBlockAdditional)break;this.currentBlockAdditional.data=V(e,s)}break;case 238:{if(!this.currentBlockAdditional)break;this.currentBlockAdditional.addId=G(e,s)}break;case 155:{if(!this.currentBlock)break;this.currentBlock.duration=G(e,s)}break;case 251:{if(!this.currentBlock)break;this.currentBlock.isKeyFrame=!1}break;case 29555:this.currentTagTargetIsMovie=!0,this.readContiguousElements(e.slice(o,s));break;case 25536:this.readContiguousElements(e.slice(o,s));break;case 26826:G(e,s)!==50&&(this.currentTagTargetIsMovie=!1);break;case 25541:case 25545:case 25540:case 25542:this.currentTagTargetIsMovie=!1;break;case 26568:{if(!this.currentTagTargetIsMovie)break;this.currentSimpleTagName=null,this.readContiguousElements(e.slice(o,s))}break;case 17827:this.currentSimpleTagName=un(e,s);break;case 17543:{if(!this.currentSimpleTagName)break;let c=un(e,s);this.processTagValue(this.currentSimpleTagName,c)}break;case 17541:{if(!this.currentSimpleTagName)break;let c=V(e,s);this.processTagValue(this.currentSimpleTagName,c)}break;case 24999:{if(!this.currentSegment)break;this.currentAttachedFile={fileUid:null,fileName:null,fileMediaType:null,fileData:null,fileDescription:null},this.readContiguousElements(e.slice(o,s));let c=this.currentSegment.metadataTags;if(this.currentAttachedFile.fileUid&&this.currentAttachedFile.fileData&&(c.raw??={},c.raw[this.currentAttachedFile.fileUid.toString()]=new Nr(this.currentAttachedFile.fileData,this.currentAttachedFile.fileMediaType??void 0,this.currentAttachedFile.fileName??void 0,this.currentAttachedFile.fileDescription??void 0)),this.currentAttachedFile.fileMediaType?.startsWith("image/")&&this.currentAttachedFile.fileData){let u=this.currentAttachedFile.fileName,l="unknown";if(u){let d=u.toLowerCase();d.startsWith("cover.")?l="coverFront":d.startsWith("back.")&&(l="coverBack")}c.images??=[],c.images.push({data:this.currentAttachedFile.fileData,mimeType:this.currentAttachedFile.fileMediaType,kind:l,name:this.currentAttachedFile.fileName??void 0,description:this.currentAttachedFile.fileDescription??void 0})}this.currentAttachedFile=null}break;case 18094:{if(!this.currentAttachedFile)break;this.currentAttachedFile.fileUid=Hd(e,s)}break;case 18030:{if(!this.currentAttachedFile)break;this.currentAttachedFile.fileName=un(e,s)}break;case 18016:{if(!this.currentAttachedFile)break;this.currentAttachedFile.fileMediaType=Zr(e,s)}break;case 18012:{if(!this.currentAttachedFile)break;this.currentAttachedFile.fileData=V(e,s)}break;case 18046:{if(!this.currentAttachedFile)break;this.currentAttachedFile.fileDescription=un(e,s)}break;case 28032:{if(!this.currentTrack)break;this.readContiguousElements(e.slice(o,s)),this.currentTrack.decodingInstructions.sort((c,u)=>u.order-c.order)}break;case 25152:this.currentDecodingInstruction={order:0,scope:1,data:null},this.readContiguousElements(e.slice(o,s)),this.currentDecodingInstruction.data&&this.currentTrack.decodingInstructions.push(this.currentDecodingInstruction),this.currentDecodingInstruction=null;break;case 20529:{if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.order=G(e,s)}break;case 20530:{if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.scope=G(e,s)}break;case 20532:{if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decompress",algorithm:0,settings:null},this.readContiguousElements(e.slice(o,s))}break;case 16980:{if(this.currentDecodingInstruction?.data?.type!=="decompress")break;this.currentDecodingInstruction.data.algorithm=G(e,s)}break;case 16981:{if(this.currentDecodingInstruction?.data?.type!=="decompress")break;this.currentDecodingInstruction.data.settings=V(e,s)}break;case 20533:{if(!this.currentDecodingInstruction)break;this.currentDecodingInstruction.data={type:"decrypt"}}break}return e.filePos=o+s,!0}decodeBlockData(e,r){g(e.decodingInstructions.length>0);let n=r;for(let a of e.decodingInstructions)switch(g(a.data),a.data.type){case"decompress":switch(a.data.algorithm){case 3:if(a.data.settings&&a.data.settings.length>0){let s=a.data.settings,o=new Uint8Array(s.length+n.length);o.set(s,0),o.set(n,s.length),n=o}break;default:}break;default:}return n}processTagValue(e,r){if(!this.currentSegment?.metadataTags)return;let n=this.currentSegment.metadataTags;if(n.raw??={},n.raw[e]??=r,typeof r=="string")switch(e.toLowerCase()){case"title":n.title??=r;break;case"description":n.description??=r;break;case"artist":n.artist??=r;break;case"album":n.album??=r;break;case"album_artist":n.albumArtist??=r;break;case"genre":n.genre??=r;break;case"bpm":{let a=Number.parseInt(r,10);Number.isInteger(a)&&a>0&&(n.beatsPerMinute??=a)}break;case"comment":n.comment??=r;break;case"lyrics":n.lyrics??=r;break;case"date":{let a=new Date(r);Number.isNaN(a.getTime())||(n.date??=a)}break;case"track_number":case"part_number":{let a=r.split("/"),s=Number.parseInt(a[0],10),o=a[1]&&Number.parseInt(a[1],10);Number.isInteger(s)&&s>0&&(n.trackNumber??=s),o&&Number.isInteger(o)&&o>0&&(n.tracksTotal??=o)}break;case"disc_number":case"disc":{let a=r.split("/"),s=Number.parseInt(a[0],10),o=a[1]&&Number.parseInt(a[1],10);Number.isInteger(s)&&s>0&&(n.discNumber??=s),o&&Number.isInteger(o)&&o>0&&(n.discsTotal??=o)}break}}getDurationFromMetadata(e){return e.duration<=0?null:e.duration/e.timestampFactor}},Os=class{constructor(t){this.internalTrack=t;this.packetToClusterLocation=new WeakMap}getId(){return this.internalTrack.id}getNumber(){let t=this.internalTrack.demuxer,e=this.internalTrack.trackBacking.getType(),r=0;for(let n of t.segments)for(let a of n.tracks)if(a.trackBacking.getType()===e&&r++,a===this.internalTrack)break;return r}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.internalTrack.codecId}getName(){return this.internalTrack.name}getLanguageCode(){return this.internalTrack.languageCode}getTimeResolution(){return this.internalTrack.segment.timestampFactor}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getDisposition(){return this.internalTrack.disposition}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return this.internalTrack.demuxer.getDurationFromMetadata(this.internalTrack.segment)}async getLiveRefreshInterval(){return null}async getFirstPacket(t){return this.performClusterLookup(null,e=>e.trackData.get(this.internalTrack.id)?{blockIndex:0,correctBlockFound:!0}:{blockIndex:-1,correctBlockFound:!1},-1/0,1/0,t)}intoTimescale(t){return hr(t*this.internalTrack.segment.timestampFactor)}async getPacket(t,e){let r=this.intoTimescale(t);return this.performClusterLookup(null,n=>{let a=n.trackData.get(this.internalTrack.id);if(!a)return{blockIndex:-1,correctBlockFound:!1};let s=Q(a.presentationTimestamps,r,u=>u.timestamp),o=s!==-1?a.presentationTimestamps[s].blockIndex:-1,c=s!==-1&&r{if(n===r.cluster){let a=n.trackData.get(this.internalTrack.id);if(r.blockIndex+1{let a=n.trackData.get(this.internalTrack.id);if(!a)return{blockIndex:-1,correctBlockFound:!1};let s=Ur(a.presentationTimestamps,u=>a.blocks[u.blockIndex].isKeyFrame&&u.timestamp<=r),o=s!==-1?a.presentationTimestamps[s].blockIndex:-1,c=s!==-1&&r{if(n===r.cluster){let s=n.trackData.get(this.internalTrack.id).blocks.findIndex((o,c)=>o.isKeyFrame&&c>r.blockIndex);if(s!==-1)return{blockIndex:s,correctBlockFound:!0}}else{let a=n.trackData.get(this.internalTrack.id);if(a&&a.firstKeyFrameTimestamp!==null){let s=a.blocks.findIndex(o=>o.isKeyFrame);return g(s!==-1),{blockIndex:s,correctBlockFound:!0}}}return{blockIndex:-1,correctBlockFound:!1}},-1/0,1/0,e)}async fetchPacketInCluster(t,e,r){if(e===-1)return null;let a=t.trackData.get(this.internalTrack.id).blocks[e];if(g(a),a.decoded||(a.data=this.internalTrack.demuxer.decodeBlockData(this.internalTrack,a.data),a.decoded=!0),!a.postProcessed){if(this.internalTrack.info?.codec==="prores"&&!(a.data.length>=8&&a.data[4]===105&&a.data[5]===99&&a.data[6]===112&&a.data[7]===102)){let m=new Uint8Array(a.data.length+8);N(m).setUint32(0,m.length,!1),m[4]=105,m[5]=99,m[6]=112,m[7]=102,m.set(a.data,8),a.data=m}a.postProcessed=!0}let s=r.metadataOnly?Te:a.data,o=a.timestamp/this.internalTrack.segment.timestampFactor,c=a.duration/this.internalTrack.segment.timestampFactor,u={};a.mainAdditional&&this.internalTrack.info?.type==="video"&&this.internalTrack.info.alphaMode&&(u.alpha=r.metadataOnly?Te:a.mainAdditional,u.alphaByteLength=a.mainAdditional.byteLength);let l=new X(s,a.isKeyFrame?"key":"delta",o,c,t.dataStartPos+e,a.data.byteLength,u);return this.packetToClusterLocation.set(l,{cluster:t,blockIndex:e}),l}async performClusterLookup(t,e,r,n,a){let{demuxer:s,segment:o}=this.internalTrack,c=null,u=null,l=-1;if(t){let{blockIndex:y,correctBlockFound:k}=e(t);if(k)return this.fetchPacketInCluster(t,y,a);y!==-1&&(u=t,l=y)}let d=Q(this.internalTrack.cuePoints,r,y=>y.time),m=d!==-1?this.internalTrack.cuePoints[d]:null,f=Q(this.internalTrack.clusterPositionCache,r,y=>y.startTimestamp),p=f!==-1?this.internalTrack.clusterPositionCache[f]:null,b=Math.max(m?.clusterPosition??0,p?.elementStartPos??0)||null,h;for(t?b===null||t.elementStartPos>=b?(h=t.elementEndPos,c=t):h=b:h=b??o.clusterSeekStartPos;o.elementEndPos===null||h<=o.elementEndPos-je;){if(c){let P=c.trackData.get(this.internalTrack.id);if(P&&P.startTimestamp>n)break}let y=s.reader.requestSliceRange(h,je,Tt);if(_(y)&&(y=await y),!y)break;let k=h,T=wt(y);if(!T||!on.includes(T.id)&&T.id!==236){let P=await Bc(s.reader,k,on,Math.min(o.elementEndPos??1/0,k+Qd));if(P){h=P;continue}else break}let w=T.id,A=T.size,x=y.filePos;if(w===524531317){c=await s.readCluster(k,o),A=c.elementEndPos-x;let{blockIndex:P,correctBlockFound:S}=e(c);if(S)return this.fetchPacketInCluster(c,P,a);P!==-1&&(u=c,l=P)}A===void 0&&(g(w!==524531317),A=(await Fs(s.reader,x,ia,o.elementEndPos)).pos-x);let C=x+A;if(o.elementEndPos===null){let P=s.reader.requestSliceRange(C,je,Tt);if(_(P)&&(P=await P),!P)break;if(Rs(P)===408125543){o.elementEndPos=C;break}}h=C}if(m&&(!u||u.elementStartPos{let e=null;(this.internalTrack.info.codec==="vp9"||this.internalTrack.info.codec==="av1"||this.internalTrack.info.codec==="prores"||this.internalTrack.info.codec==="avc"&&!this.internalTrack.info.codecDescription||this.internalTrack.info.codec==="hevc"&&!this.internalTrack.info.codecDescription)&&(e=await this.getFirstPacket({}));let n={width:this.internalTrack.info.width,height:this.internalTrack.info.height,codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,colorSpace:this.internalTrack.info.colorSpace,avcType:1,avcCodecInfo:this.internalTrack.info.codec==="avc"&&e?Zt(e.data):null,hevcCodecInfo:this.internalTrack.info.codec==="hevc"&&e?er(e.data):null,vp9CodecInfo:this.internalTrack.info.codec==="vp9"&&e?Zi(e.data):null,av1CodecInfo:this.internalTrack.info.codec==="av1"&&e?Ci(e.data):null,proresCodecInfo:this.internalTrack.info.codec==="prores"&&e?rs(e.data):null,proresFormat:this.internalTrack.info.proresFormat};if(!Ki(this.internalTrack.info.colorSpace)){let s=ps(n);this.internalTrack.info.colorSpace.primaries??=s.primaries,this.internalTrack.info.colorSpace.transfer??=s.transfer,this.internalTrack.info.colorSpace.matrix??=s.matrix,this.internalTrack.info.colorSpace.fullRange??=s.fullRange}let a={codec:Kr(n),codedWidth:this.internalTrack.info.width,codedHeight:this.internalTrack.info.height,description:this.internalTrack.info.codecDescription??void 0,colorSpace:this.internalTrack.info.colorSpace};return(this.internalTrack.info.width!==this.internalTrack.info.squarePixelWidth||this.internalTrack.info.height!==this.internalTrack.info.squarePixelHeight)&&(a.displayAspectWidth=this.internalTrack.info.squarePixelWidth,a.displayAspectHeight=this.internalTrack.info.squarePixelHeight),a})():null}},Vc=class extends Os{constructor(e){super(e);this.decoderConfigPromise=null}getType(){return"audio"}getCodec(){return this.internalTrack.info.codec}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels}getSampleRate(){return this.internalTrack.info.sampleRate}async getDecoderConfig(){return this.internalTrack.info.codec?this.decoderConfigPromise??=(async()=>{if(this.internalTrack.info.codec==="dts"&&!this.internalTrack.info.dtsFormat){let e=await this.getFirstPacket({});this.internalTrack.info.dtsFormat=e&&ls(e.data)}return{codec:Ji({codec:this.internalTrack.info.codec,codecDescription:this.internalTrack.info.codecDescription,aacCodecInfo:this.internalTrack.info.aacCodecInfo,dtsFormat:this.internalTrack.info.dtsFormat}),numberOfChannels:this.internalTrack.info.numberOfChannels,sampleRate:this.internalTrack.info.sampleRate,description:this.internalTrack.info.codecDescription??void 0}})():null}};var na=async(i,t,e,r=null)=>{let a=t;for(;e===null||a=4;){let c=o.filePos,u=M(o),l=i.fileSize!==null?i.fileSize-a:null,d=jr(u,l);if(d.header&&(!r||d.header.sampleRate===r.sampleRate&&d.header.mpegVersionId===r.mpegVersionId&&d.header.layer===r.layer&&Xr(d.header.channel)===Xr(r.channel)))return{header:d.header,startPos:a};o.filePos=c+d.bytesAdvanced,a=o.filePos}}return null};var Ds=class extends Ae{constructor(e){super(e);this.metadataPromise=null;this.firstFrameHeader=null;this.firstFrameHeaderPos=null;this.xingFrameHeader=null;this.xingFrameHeaderPos=null;this.loadedSamples=[];this.metadataTags=null;this.xingData=null;this.trackBackings=[];this.readingMutex=new Le;this.lastSampleLoaded=!1;this.lastLoadedPos=0;this.nextTimestampInSamples=0;this.reader=e._reader}async readMetadata(){return this.metadataPromise??=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();if(!this.firstFrameHeader&&this.xingFrameHeader&&(this.firstFrameHeader=this.xingFrameHeader,this.firstFrameHeaderPos=this.xingFrameHeaderPos),!this.firstFrameHeader)throw new Error("No valid MP3 frame found.");this.trackBackings=[new Uc(this)]})()}async advanceReader(){if(this.lastLoadedPos===0)for(;;){let c=this.reader.requestSlice(this.lastLoadedPos,Ue);if(_(c)&&(c=await c),!c){this.lastSampleLoaded=!0;return}let u=Je(c);if(!u)break;this.lastLoadedPos=c.filePos+u.size}let e=await na(this.reader,this.lastLoadedPos,this.reader.fileSize,this.firstFrameHeader);if(!e){this.lastSampleLoaded=!0;return}let r=e.header;this.lastLoadedPos=e.startPos+r.totalSize-1;let n=Gr(r.mpegVersionId,r.channel),a=this.reader.requestSlice(e.startPos+n,4);if(_(a)&&(a=await a),a){let c=M(a);if(c===Qr||c===en){if(this.xingFrameHeader||(this.xingFrameHeader=r,this.xingFrameHeaderPos=e.startPos),!this.xingData){let l=this.reader.requestSlice(e.startPos+n+4,12);if(_(l)&&(l=await l),l){let d=V(l,12),m=N(d),f=m.getUint32(0,!1);this.xingData={frameCount:f&1?m.getUint32(4,!1):null,fileSize:f&2?m.getUint32(8,!1):null}}}return}}this.firstFrameHeader||(this.firstFrameHeader=r,this.firstFrameHeaderPos=e.startPos);let s=r.audioSamplesInFrame/this.firstFrameHeader.sampleRate,o={timestamp:this.nextTimestampInSamples/this.firstFrameHeader.sampleRate,duration:s,dataStart:e.startPos,dataSize:r.totalSize};this.loadedSamples.push(o),this.nextTimestampInSamples+=r.audioSamplesInFrame}async getMimeType(){return"audio/mpeg"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){let e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let r=0,n=!1;for(;;){let a=this.reader.requestSlice(r,Ue);if(_(a)&&(a=await a),!a)break;let s=Je(a);if(!s)break;n=!0;let o=this.reader.requestSlice(a.filePos,s.size);if(_(o)&&(o=await o),!o)break;Jr(o,s,this.metadataTags),r=a.filePos+s.size}if(!n&&this.reader.fileSize!==null&&this.reader.fileSize>=aa){let a=this.reader.requestSlice(this.reader.fileSize-aa,aa);_(a)&&(a=await a),g(a),oe(a,3)==="TAG"&&Gd(a,this.metadataTags)}return this.metadataTags}finally{e()}}},Uc=class{constructor(t){this.demuxer=t}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return g(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate/this.demuxer.firstFrameHeader.audioSamplesInFrame}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){let t=this.demuxer;if(g(t.firstFrameHeader!==null),g(t.firstFrameHeaderPos!==null),t.xingData){if(t.xingData.frameCount!==null)return t.xingData.frameCount*t.firstFrameHeader.audioSamplesInFrame/t.firstFrameHeader.sampleRate}else if(t.reader.fileSize!==null){let e=xd(t.firstFrameHeader.lowSamplingFrequency,t.firstFrameHeader.layer,t.firstFrameHeader.bitrate,t.firstFrameHeader.sampleRate),r=(t.reader.fileSize-t.firstFrameHeaderPos)/e;return Math.round(r)*t.firstFrameHeader.audioSamplesInFrame/t.firstFrameHeader.sampleRate}return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return se}getCodec(){return"mp3"}getInternalCodecId(){return null}getNumberOfChannels(){return g(this.demuxer.firstFrameHeader),Xr(this.demuxer.firstFrameHeader.channel)}getSampleRate(){return g(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.sampleRate}getDisposition(){return{..._e}}async getDecoderConfig(){return g(this.demuxer.firstFrameHeader),{codec:"mp3",numberOfChannels:Xr(this.demuxer.firstFrameHeader.channel),sampleRate:this.demuxer.firstFrameHeader.sampleRate}}async getPacketAtIndex(t,e){if(t===-1)return null;let r=this.demuxer.loadedSamples[t];if(!r)return null;let n;if(e.metadataOnly)n=Te;else{let a=this.demuxer.reader.requestSlice(r.dataStart,r.dataSize);if(_(a)&&(a=await a),!a)return null;n=V(a,r.dataSize)}return new X(n,"key",r.timestamp,r.duration,t,r.dataSize)}getFirstPacket(t){return this.getPacketAtIndex(0,t)}async getNextPacket(t,e){let r=await this.demuxer.readingMutex.acquire();try{let n=pr(this.demuxer.loadedSamples,t.timestamp,s=>s.timestamp);if(n===-1)throw new Error("Packet was not created from this track.");let a=n+1;for(;a>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(a,e)}finally{r()}}async getPacket(t,e){let r=await this.demuxer.readingMutex.acquire();try{for(;;){let n=Q(this.demuxer.loadedSamples,t,a=>a.timestamp);if(n===-1&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(n,e);if(n>=0&&n+1>>0&4294967295}var Vs=i=>{let t=N(i),e=t.getUint32(22,!0);t.setUint32(22,0,!0);let r=0;for(let n=0;n>>24^a])>>>0}return t.setUint32(22,e,!0),r},oa=(i,t,e)=>{let r=0,n=null;if(i.length>0)if(t.codec==="vorbis"){g(t.vorbisInfo);let a=t.vorbisInfo.modeBlockflags.length,o=(1<>1;if(c>=t.vorbisInfo.modeBlockflags.length)throw new Error("Invalid mode number.");let u=e,l=t.vorbisInfo.modeBlockflags[c];if(n=t.vorbisInfo.blocksizes[l],l===1){let d=(o|1)+1,m=i[0]&d?1:0;u=t.vorbisInfo.blocksizes[m]}r=u!==null?u+n>>2:0}else t.codec==="opus"&&(r=sd(i).durationInSamples);return{durationInSamples:r,vorbisBlockSize:n}},Us=i=>{let t="audio/ogg";if(i.codecStrings){let e=[...new Set(i.codecStrings)];t+=`; codecs="${e.join(", ")}"`}return t};var Pr=27,Ii=282,zs=Ii+255*255,dn=i=>{let t=i.filePos;if(Pi(i)!==sa)return null;i.skip(1);let r=L(i),n=$d(i),a=Pi(i),s=Pi(i),o=Pi(i),c=L(i),u=new Uint8Array(c);for(let f=0;ff+p,0),m=l+d;return{headerStartPos:t,totalSize:m,dataStartPos:t+l,dataSize:d,headerType:r,granulePosition:n,serialNumber:a,sequenceNumber:s,checksum:o,lacingValues:u}},Xd=(i,t)=>{for(;i.filePos>>8&255,a=e>>>16&255,s=e>>>24&255,o=79;if(!(r!==o&&n!==o&&a!==o&&s!==o)){if(i.skip(-4),e===sa)return!0;i.skip(1)}}return!1};var Ns=class extends Ae{constructor(e){super(e);this.metadataPromise=null;this.bitstreams=[];this.trackBackings=[];this.metadataTags={};this.reader=e._reader}async readMetadata(){return this.metadataPromise??=(async()=>{let e=0;for(;;){let r=this.reader.requestSliceRange(e,Pr,Ii);if(_(r)&&(r=await r),!r)break;let n=dn(r);if(!n||!!!(n.headerType&2))break;this.bitstreams.push({serialNumber:n.serialNumber,bosPage:n,description:null,numberOfChannels:-1,sampleRate:-1,codecInfo:{codec:null,vorbisInfo:null,opusInfo:null},lastMetadataPacket:null}),e=n.headerStartPos+n.totalSize}for(let r of this.bitstreams){let n=await this.readPacket(r.bosPage,0);n&&(n.data.byteLength>=7&&n.data[0]===1&&n.data[1]===118&&n.data[2]===111&&n.data[3]===114&&n.data[4]===98&&n.data[5]===105&&n.data[6]===115?await this.readVorbisMetadata(n,r):n.data.byteLength>=8&&n.data[0]===79&&n.data[1]===112&&n.data[2]===117&&n.data[3]===115&&n.data[4]===72&&n.data[5]===101&&n.data[6]===97&&n.data[7]===100&&await this.readOpusMetadata(n,r),r.codecInfo.codec!==null&&this.trackBackings.push(new zc(r,this)))}})()}async readVorbisMetadata(e,r){let n=await this.findNextPacketStart(e);if(!n)return;let a=await this.readPacket(n.startPage,n.startSegmentIndex);if(!a||(n=await this.findNextPacketStart(a),!n))return;let s=await this.readPacket(n.startPage,n.startSegmentIndex);if(!s||a.data[0]!==3||s.data[0]!==5)return;let o=[],c=m=>{for(;o.push(Math.min(255,m)),!(m<255);)m-=255};c(e.data.length),c(a.data.length);let u=new Uint8Array(1+o.length+e.data.length+a.data.length+s.data.length);u[0]=2,u.set(o,1),u.set(e.data,1+o.length),u.set(a.data,1+o.length+e.data.length),u.set(s.data,1+o.length+e.data.length+a.data.length),r.codecInfo.codec="vorbis",r.description=u,r.lastMetadataPacket=s;let l=N(e.data);r.numberOfChannels=l.getUint8(11),r.sampleRate=l.getUint32(12,!0);let d=l.getUint8(28);r.codecInfo.vorbisInfo={blocksizes:[1<<(d&15),1<<(d>>4)],modeBlockflags:is(s.data).modeBlockflags},Kn(a.data.subarray(7),this.metadataTags)}async readOpusMetadata(e,r){let n=await this.findNextPacketStart(e);if(!n)return;let a=await this.readPacket(n.startPage,n.startSegmentIndex);if(!a)return;r.codecInfo.codec="opus",r.description=e.data,r.lastMetadataPacket=a;let s=Hr(e.data);r.numberOfChannels=s.outputChannelCount,r.sampleRate=Ft,r.codecInfo.opusInfo={preSkip:s.preSkip},Kn(a.data.subarray(8),this.metadataTags)}async readPacket(e,r){g(rm+f.length,0);if(u===0)return null;let l=new Uint8Array(u),d=0;for(let m=0;mr.getDecoderConfig().then(n=>n?.codec??null)));return Us({codecStrings:e.filter(Boolean)})}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}},zc=class{constructor(t,e){this.bitstream=t;this.demuxer=e;this.encodedPacketToMetadata=new WeakMap;this.sequentialScanCache=[];this.sequentialScanMutex=new Le;this.firstTimestampInSamplesPromise=null;this.internalSampleRate=t.codecInfo.codec==="opus"?Ft:t.sampleRate}getType(){return"audio"}getId(){return this.bitstream.serialNumber}getNumber(){let t=this.demuxer.trackBackings.findIndex(e=>e.bitstream===this.bitstream);return g(t!==-1),t+1}getNumberOfChannels(){return this.bitstream.numberOfChannels}getSampleRate(){return this.bitstream.sampleRate}getTimeResolution(){return this.bitstream.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getCodec(){return this.bitstream.codecInfo.codec}getInternalCodecId(){return null}async getDecoderConfig(){return g(this.bitstream.codecInfo.codec),{codec:this.bitstream.codecInfo.codec,numberOfChannels:this.bitstream.numberOfChannels,sampleRate:this.bitstream.sampleRate,description:this.bitstream.description??void 0}}getName(){return null}getLanguageCode(){return se}getDisposition(){return{..._e,primary:!1}}granulePositionToTimestampInSamples(t){return this.bitstream.codecInfo.codec==="opus"?(g(this.bitstream.codecInfo.opusInfo),t-this.bitstream.codecInfo.opusInfo.preSkip):t}createEncodedPacketFromOggPacket(t,e,r){if(!t)return null;let n=oa(t.data,this.bitstream.codecInfo,e.vorbisLastBlocksize),{vorbisBlockSize:a}=n,{durationInSamples:s}=n;if(!!(t.endPage.headerType&4)&&t.endSegmentIndex===t.endPage.lacingValues.length-1){let d=this.granulePositionToTimestampInSamples(t.endPage.granulePosition);s=ee(d-e.timestampInSamples,0,s)}let c=Math.max(e.timestampInSamples,0),u=Math.max(e.timestampInSamples+s,0),l=new X(r.metadataOnly?Te:t.data,"key",c/this.internalSampleRate,(u-c)/this.internalSampleRate,t.endPage.headerStartPos+t.endSegmentIndex,t.data.byteLength);return this.encodedPacketToMetadata.set(l,{packet:t,timestampInSamples:e.timestampInSamples,durationInSamples:s,vorbisLastBlockSize:e.vorbisLastBlocksize,vorbisBlockSize:a}),l}getFirstTimestampInSamples(){return this.firstTimestampInSamplesPromise??=(async()=>{let t=this.granulePositionToTimestampInSamples(0);g(this.bitstream.lastMetadataPacket);let e=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!e)return t;let r=null,n=0,a=null;for(;e;){let s=await this.demuxer.readPacket(e.startPage,e.startSegmentIndex);if(!s||(r??=s.endPage,s.endPage.headerStartPos!==r.headerStartPos))break;let{durationInSamples:o,vorbisBlockSize:c}=oa(s.data,this.bitstream.codecInfo,a);n+=o,a=c,e=await this.demuxer.findNextPacketStart(s)}return r?t+Math.max(r.granulePosition-n,0):t})()}async getFirstPacket(t){g(this.bitstream.lastMetadataPacket);let e=await this.demuxer.findNextPacketStart(this.bitstream.lastMetadataPacket);if(!e)return null;let r=await this.getFirstTimestampInSamples(),n=await this.demuxer.readPacket(e.startPage,e.startSegmentIndex);return this.createEncodedPacketFromOggPacket(n,{timestampInSamples:r,vorbisLastBlocksize:null},t)}async getNextPacket(t,e){let r=this.encodedPacketToMetadata.get(t);if(!r)throw new Error("Packet was not created from this track.");let n=await this.demuxer.findNextPacketStart(r.packet);if(!n)return null;let a=r.timestampInSamples+r.durationInSamples,s=await this.demuxer.readPacket(n.startPage,n.startSegmentIndex);return this.createEncodedPacketFromOggPacket(s,{timestampInSamples:a,vorbisLastBlocksize:r.vorbisBlockSize},e)}async getPacket(t,e){if(this.demuxer.reader.fileSize===null)return this.getPacketSequential(t,e);let r=hr(t*this.internalSampleRate),n=await this.getFirstTimestampInSamples();if(r===Math.max(n,0))return this.getFirstPacket(e);if(rr?o=I.headerStartPos:(s=I,c.push(I));continue e}}let u=a.startPage;for(let T of c){if(T.granulePosition===s.granulePosition)break;(!u||T.headerStartPos>u.headerStartPos)&&(u=T)}let l=u,d=[l];for(;!(l.serialNumber===this.bitstream.serialNumber&&l.granulePosition===s.granulePosition);){let T=l.headerStartPos+l.totalSize,w=this.demuxer.reader.requestSliceRange(T,Pr,Ii);_(w)&&(w=await w),g(w);let A=dn(w);g(A),l=A,l.serialNumber===this.bitstream.serialNumber&&d.push(l)}g(l.granulePosition!==-1);let m=null,f,p,b=l,h=0;if(l.headerStartPos===a.startPage.headerStartPos)f=n,p=!0,m=0;else{f=0,p=!1;for(let A=l.lacingValues.length-1;A>=0;A--)if(l.lacingValues[A]<255){m=A+1;break}if(m===null)throw new Error("Invalid page with granule position: no packets end on this page.");h=m-1;let T={data:Te,endPage:b,endSegmentIndex:h};if(await this.demuxer.findNextPacketStart(T)){let A=Zd(d,l,m);g(A);let x=Yd(d,A.page,A.segmentIndex);x&&(l=x.page,m=x.segmentIndex)}else for(;;){let A=Zd(d,l,m);if(!A)break;let x=Yd(d,A.page,A.segmentIndex);if(!x)break;if(l=x.page,m=x.segmentIndex,A.page.headerStartPos!==b.headerStartPos){b=A.page,h=A.segmentIndex;break}}}let y=null,k=null;for(;l!==null;){g(m!==null);let T=await this.demuxer.readPacket(l,m);if(!T)break;if(!(l.headerStartPos===a.startPage.headerStartPos&&mr||Math.max(C.timestampInSamples,0)===r))break}let A=await this.demuxer.findNextPacketStart(T);if(!A)break;l=A.startPage,m=A.startSegmentIndex}return y}async getPacketSequential(t,e){let r=await this.sequentialScanMutex.acquire();try{let n=hr(t*this.internalSampleRate);t=n/this.internalSampleRate;let a=Q(this.sequentialScanCache,n,c=>c.timestampInSamples),s;if(a!==-1){let c=this.sequentialScanCache[a];s=this.createEncodedPacketFromOggPacket(c.packet,{timestampInSamples:c.timestampInSamples,vorbisLastBlocksize:c.vorbisLastBlockSize},e)}else if(s=await this.getFirstPacket(e),s&&s.timestamp>t)return null;let o=0;for(;s&&s.timestampt)break;if(s=c,o++,o===100){o=0;let u=this.encodedPacketToMetadata.get(s);g(u),this.sequentialScanCache.length>0&&g(Z(this.sequentialScanCache).timestampInSamples<=u.timestampInSamples),this.sequentialScanCache.push(u)}}return s}finally{r()}}getKeyPacket(t,e){return this.getPacket(t,e)}getNextKeyPacket(t,e){return this.getNextPacket(t,e)}},Yd=(i,t,e)=>{let r=t,n=e;e:for(;;){for(n--,n;n>=0;n--)if(r.lacingValues[n]<255){n++;break e}if(g(n===-1),!(r.headerType&1)){n=0;break}let s=fc(i,o=>o.headerStartPos{if(e>0)return{page:t,segmentIndex:e-1};let r=fc(i,n=>n.headerStartPos{let e=this.reader.requestSlice(0,12);_(e)&&(e=await e),g(e);let r=oe(e,4),n=r!=="RIFX",a=r==="RF64",s=Ir(e,n),o=a?this.reader.fileSize:Math.min(s+8,this.reader.fileSize??1/0);if(oe(e,4)!=="WAVE")throw new Error("Invalid WAVE file - wrong format");let u=0,l=null,d=e.filePos;for(;o===null||d=18&&s!==357){let d=fn(a,n),m=r-18;if(Math.min(m,d)>=22&&s===65534){a.skip(6);let p=V(a,16);s=p[0]|p[1]<<8}}if((s===7||s===6)&&(l=8),s!==1&&s!==3&&s!==6&&s!==7)throw new Error(`Unsupported WAVE codec (format tag ${s}). Only integer/float PCM, A-law, and \u03BC-law are supported.`);if(s===1&&![8,16,24,32].includes(l))throw new Error(`Unsupported WAVE PCM bit depth (${l}). Only 8, 16, 24, and 32 bits are supported.`);if(s===3&&![32,64].includes(l))throw new Error(`Unsupported WAVE float bit depth (${l}). Only 32 and 64 bits are supported.`);this.audioInfo={format:s,numberOfChannels:o,sampleRate:c,sampleSizeInBytes:Math.ceil(l/8),blockSizeInBytes:u}}async parseListChunk(e,r,n){let a=this.reader.requestSlice(e,r);if(_(a)&&(a=await a),!a)return;let s=oe(a,4);if(s!=="INFO"&&s!=="INF0")return;let o=a.filePos;for(;o<=e+r-8;){a.filePos=o;let c=oe(a,4),u=Ir(a,n),l=V(a,u),d=0;for(let f=0;f0&&(this.metadataTags.trackNumber??=p),b&&Number.isInteger(b)&&b>0&&(this.metadataTags.tracksTotal??=b)}break;case"ICRD":case"IDIT":{let f=new Date(m);Number.isNaN(f.getTime())||(this.metadataTags.date??=f)}break;case"YEAR":{let f=Number.parseInt(m,10);Number.isInteger(f)&&f>0&&(this.metadataTags.date??=new Date(f,0,1))}break;case"IGNR":case"GENR":this.metadataTags.genre??=m;break;case"ICMT":case"CMNT":case"COMM":this.metadataTags.comment??=m;break}o+=8+u+(u&1)}}async parseId3Chunk(e,r){let n=this.reader.requestSlice(e,r);if(_(n)&&(n=await n),!n)return;let a=Je(n);if(a){let s=r-Ue;if(a.size=Math.min(a.size,s),a.size>0){let o=n.slice(e+Ue,a.size);Jr(o,a,this.metadataTags)}}}getCodec(){if(g(this.audioInfo),this.audioInfo.format===7)return"ulaw";if(this.audioInfo.format===6)return"alaw";if(this.audioInfo.format===1){if(this.audioInfo.sampleSizeInBytes===1)return"pcm-u8";if(this.audioInfo.sampleSizeInBytes===2)return"pcm-s16";if(this.audioInfo.sampleSizeInBytes===3)return"pcm-s24";if(this.audioInfo.sampleSizeInBytes===4)return"pcm-s32"}if(this.audioInfo.format===3){if(this.audioInfo.sampleSizeInBytes===4)return"pcm-f32";if(this.audioInfo.sampleSizeInBytes===8)return"pcm-f64"}g(!1)}async getMimeType(){return"audio/wav"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}},mn=2048,Nc=class{constructor(t){this.demuxer=t}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return this.demuxer.getCodec()}getInternalCodecId(){return g(this.demuxer.audioInfo),this.demuxer.audioInfo.format}async getDecoderConfig(){let t=this.demuxer.getCodec();return t?(g(this.demuxer.audioInfo),{codec:t,numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate}):null}getNumberOfChannels(){return g(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return g(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getTimeResolution(){return g(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return g(this.demuxer.dataSize!==-1),this.demuxer.dataSize/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return se}getDisposition(){return{..._e}}async getPacketAtIndex(t,e){g(t>=0),g(this.demuxer.audioInfo);let r=t*mn*this.demuxer.audioInfo.blockSizeInBytes;if(r>=this.demuxer.dataSize)return null;let n=Math.min(mn*this.demuxer.audioInfo.blockSizeInBytes,this.demuxer.dataSize-r);if(this.demuxer.reader.fileSize===null){let c=this.demuxer.reader.requestSlice(this.demuxer.dataStart+r,n);if(_(c)&&(c=await c),!c)return null}let a;if(e.metadataOnly)a=Te;else{let c=this.demuxer.reader.requestSlice(this.demuxer.dataStart+r,n);_(c)&&(c=await c),g(c),a=V(c,n)}let s=t*mn/this.demuxer.audioInfo.sampleRate,o=n/this.demuxer.audioInfo.blockSizeInBytes/this.demuxer.audioInfo.sampleRate;return this.demuxer.lastKnownPacketIndex=Math.max(t,this.demuxer.lastKnownPacketIndex),new X(a,"key",s,o,t,n)}getFirstPacket(t){return this.getPacketAtIndex(0,t)}async getPacket(t,e){g(this.demuxer.audioInfo);let r=Math.floor(Math.min(t*this.demuxer.audioInfo.sampleRate/mn,(this.demuxer.dataSize-1)/(mn*this.demuxer.audioInfo.blockSizeInBytes)));if(r<0)return null;let n=await this.getPacketAtIndex(r,e);if(n)return n;if(r===0)return null;g(this.demuxer.reader.fileSize===null);let a=await this.getPacketAtIndex(this.demuxer.lastKnownPacketIndex,e);for(;a;){let s=await this.getNextPacket(a,e);if(!s)break;a=s}return a}getNextPacket(t,e){g(this.demuxer.audioInfo);let r=Math.round(t.timestamp*this.demuxer.audioInfo.sampleRate/mn);return this.getPacketAtIndex(r+1,e)}getKeyPacket(t,e){return this.getPacket(t,e)}getNextKeyPacket(t,e){return this.getNextPacket(t,e)}};var Er=7,mt=9,et=i=>{let t=i.filePos,e=V(i,9),r=new H(e);if(r.readBits(12)!==4095||(r.skipBits(1),r.readBits(2)!==0))return null;let s=r.readBits(1),o=r.readBits(2)+1,c=r.readBits(4);if(c===15)return null;r.skipBits(1);let u=r.readBits(3);if(u===0)throw new Error("ADTS frames with channel configuration 0 are not supported.");r.skipBits(1),r.skipBits(1),r.skipBits(1),r.skipBits(1);let l=r.readBits(13);r.skipBits(11);let d=r.readBits(2)+1;if(d!==1)throw new Error("ADTS frames with more than one AAC frame are not supported.");let m=null;return s===1?i.filePos-=2:m=r.readBits(16),{objectType:o,samplingFrequencyIndex:c,channelConfiguration:u,frameLength:l,numberOfAacFrames:d,crcCheck:m,startPos:t}};var ca=1024,Ws=class extends Ae{constructor(e){super(e);this.metadataPromise=null;this.firstFrameHeader=null;this.loadedSamples=[];this.metadataTags=null;this.trackBackings=[];this.readingMutex=new Le;this.lastSampleLoaded=!1;this.lastLoadedPos=0;this.nextTimestampInSamples=0;this.reader=e._reader}async readMetadata(){return this.metadataPromise??=(async()=>{for(;!this.firstFrameHeader&&!this.lastSampleLoaded;)await this.advanceReader();g(this.firstFrameHeader),this.trackBackings=[new Wc(this)]})()}async advanceReader(){if(this.lastLoadedPos===0)for(;;){let o=this.reader.requestSlice(this.lastLoadedPos,Ue);if(_(o)&&(o=await o),!o){this.lastSampleLoaded=!0;return}let c=Je(o);if(!c)break;this.lastLoadedPos=o.filePos+c.size}let e=this.reader.requestSliceRange(this.lastLoadedPos,Er,mt);if(_(e)&&(e=await e),!e){this.lastSampleLoaded=!0;return}let r=et(e);if(!r){this.lastSampleLoaded=!0;return}if(this.reader.fileSize!==null&&r.startPos+r.frameLength>this.reader.fileSize){this.lastSampleLoaded=!0;return}this.firstFrameHeader||(this.firstFrameHeader=r);let n=kt[r.samplingFrequencyIndex];g(n!==void 0);let a=ca/n,s={timestamp:this.nextTimestampInSamples/n,duration:a,dataStart:r.startPos,dataSize:r.frameLength};this.loadedSamples.push(s),this.nextTimestampInSamples+=ca,this.lastLoadedPos=r.startPos+r.frameLength}async getMimeType(){return"audio/aac"}async getTrackBackings(){return await this.readMetadata(),this.trackBackings}async getMetadataTags(){let e=await this.readingMutex.acquire();try{if(await this.readMetadata(),this.metadataTags)return this.metadataTags;this.metadataTags={};let r=0;for(;;){let n=this.reader.requestSlice(r,Ue);if(_(n)&&(n=await n),!n)break;let a=Je(n);if(!a)break;let s=this.reader.requestSlice(n.filePos,a.size);if(_(s)&&(s=await s),!s)break;Jr(s,a,this.metadataTags),r=n.filePos+a.size}return this.metadataTags}finally{e()}}},Wc=class{constructor(t){this.demuxer=t}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getTimeResolution(){return this.getSampleRate()/ca}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}getName(){return null}getLanguageCode(){return se}getCodec(){return"aac"}getInternalCodecId(){return g(this.demuxer.firstFrameHeader),this.demuxer.firstFrameHeader.objectType}getNumberOfChannels(){g(this.demuxer.firstFrameHeader);let t=Xt[this.demuxer.firstFrameHeader.channelConfiguration];return g(t!==void 0),t}getSampleRate(){g(this.demuxer.firstFrameHeader);let t=kt[this.demuxer.firstFrameHeader.samplingFrequencyIndex];return g(t!==void 0),t}getDisposition(){return{..._e}}async getDecoderConfig(){return g(this.demuxer.firstFrameHeader),{codec:`mp4a.40.${this.demuxer.firstFrameHeader.objectType}`,numberOfChannels:this.getNumberOfChannels(),sampleRate:this.getSampleRate()}}async getPacketAtIndex(t,e){if(t===-1)return null;let r=this.demuxer.loadedSamples[t];if(!r)return null;let n;if(e.metadataOnly)n=Te;else{let a=this.demuxer.reader.requestSlice(r.dataStart,r.dataSize);if(_(a)&&(a=await a),!a)return null;n=V(a,r.dataSize)}return new X(n,"key",r.timestamp,r.duration,t,r.dataSize)}getFirstPacket(t){return this.getPacketAtIndex(0,t)}async getNextPacket(t,e){let r=await this.demuxer.readingMutex.acquire();try{let n=pr(this.demuxer.loadedSamples,t.timestamp,s=>s.timestamp);if(n===-1)throw new Error("Packet was not created from this track.");let a=n+1;for(;a>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(a,e)}finally{r()}}async getPacket(t,e){let r=await this.demuxer.readingMutex.acquire();try{for(;;){let n=Q(this.demuxer.loadedSamples,t,a=>a.timestamp);if(n===-1&&this.demuxer.loadedSamples.length>0)return null;if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(n,e);if(n>=0&&n+1i===0?null:i===1?192:i>=2&&i<=5?144*2**i:i===6?"uncommon-u8":i===7?"uncommon-u16":i>=8&&i<=15?2**i:null,Jd=(i,t)=>{switch(i){case 0:return t;case 1:return 88200;case 2:return 176400;case 3:return 192e3;case 4:return 8e3;case 5:return 16e3;case 6:return 22050;case 7:return 24e3;case 8:return 32e3;case 9:return 44100;case 10:return 48e3;case 11:return 96e3;case 12:return"uncommon-u8";case 13:return"uncommon-u16";case 14:return"uncommon-u16-10";default:return null}},qs=i=>{let t=0,e=new H(V(i,1));for(;e.readBits(1)===1;)t++;if(t===0)return e.readBits(7);let r=[],n=t-1,a=new H(V(i,n)),s=8-t-1;for(let c=0;cc|u<{if(t==="uncommon-u16")return he(i)+1;if(t==="uncommon-u8")return L(i)+1;if(typeof t=="number")return t;ne(t),g(!1)},em=(i,t)=>t==="uncommon-u16"?he(i):t==="uncommon-u16-10"?he(i)*10:t==="uncommon-u8"?L(i):typeof t=="number"?t:null,tm=i=>{let e=0;for(let r of i){e^=r;for(let n=0;n<8;n++)(e&128)!==0?e=e<<1^7:e<<=1,e&=255}return e};var Qs=class extends Ae{constructor(e){super(e);this.loadedSamples=[];this.metadataPromise=null;this.trackBacking=null;this.metadataTags={};this.audioInfo=null;this.lastLoadedPos=null;this.blockingBit=null;this.readingMutex=new Le;this.lastSampleLoaded=!1;this.reader=e._reader}async getMetadataTags(){return await this.readMetadata(),this.metadataTags}async getTrackBackings(){return await this.readMetadata(),g(this.trackBacking),[this.trackBacking]}async getMimeType(){return"audio/flac"}async readMetadata(){return this.metadataPromise??=(async()=>{let e=0;for(;;){let r=this.reader.requestSlice(e,Ue);if(_(r)&&(r=await r),!r){this.lastSampleLoaded=!0;return}let n=Je(r);if(!n)break;let a=this.reader.requestSlice(r.filePos,n.size);_(a)&&(a=await a),g(a),Jr(a,n,this.metadataTags),e=r.filePos+n.size}for(e+=4;this.reader.fileSize===null||ed.end-n)return{num:m.num,blockSize:m.blockSize,sampleRate:m.sampleRate,size:d.end-e,isLastFrame:!0};if(L(d)===255){let p=d.filePos,b=L(d),h=this.blockingBit===1?249:248;if(b!==h){d.filePos=p;continue}d.skip(-2);let y=d.filePos-e,k=this.readFlacFrameHeader({slice:d,isFirstPacket:!1});if(!k){d.filePos=p;continue}if(this.blockingBit===0){if(k.num-m.num!==1){d.filePos=p;continue}}else if(k.num-m.num!==m.blockSize){d.filePos=p;continue}return{num:m.num,blockSize:m.blockSize,sampleRate:m.sampleRate,size:y,isLastFrame:!1}}}}readFlacFrameHeader({slice:e,isFirstPacket:r}){let n=e.filePos,a=V(e,4),s=new H(a);if(s.readBits(15)!==32764)return null;if(this.blockingBit===null){g(r);let y=s.readBits(1);this.blockingBit=y}else if(this.blockingBit===1){if(g(!r),s.readBits(1)!==1)return null}else if(this.blockingBit===0){if(g(!r),s.readBits(1)!==0)return null}else throw new Error("Invalid blocking bit");let c=Hs(s.readBits(4));if(!c)return null;g(this.audioInfo);let u=Jd(s.readBits(4),this.audioInfo.sampleRate);if(!u||(s.readBits(4),s.readBits(3),s.readBits(1)!==0))return null;let d=qs(e),m=Ks(e,c),f=em(e,u);if(f===null||f!==this.audioInfo.sampleRate)return null;let p=e.filePos-n,b=L(e);e.skip(-p),e.skip(-1);let h=tm(V(e,p));return b!==h?null:{num:d,blockSize:m,sampleRate:f}}async advanceReader(){await this.readMetadata(),g(this.lastLoadedPos!==null),g(this.audioInfo);let e=this.lastLoadedPos,r=await this.readNextFlacFrame({startPos:e,isFirstPacket:this.loadedSamples.length===0});if(!r){this.lastSampleLoaded=!0;return}let n=this.loadedSamples[this.loadedSamples.length-1],s={blockOffset:n?n.blockOffset+n.blockSize:0,blockSize:r.blockSize,byteOffset:e,byteSize:r.size};if(this.lastLoadedPos=this.lastLoadedPos+r.size,this.loadedSamples.push(s),r.isLastFrame){this.lastSampleLoaded=!0;return}}},Hc=class{constructor(t){this.demuxer=t}getType(){return"audio"}getId(){return 1}getNumber(){return 1}getCodec(){return"flac"}getInternalCodecId(){return null}getNumberOfChannels(){return g(this.demuxer.audioInfo),this.demuxer.audioInfo.numberOfChannels}getSampleRate(){return g(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}getName(){return null}getLanguageCode(){return se}getTimeResolution(){return g(this.demuxer.audioInfo),this.demuxer.audioInfo.sampleRate}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return g(this.demuxer.audioInfo),this.demuxer.audioInfo.totalSamples===0?null:this.demuxer.audioInfo.totalSamples/this.demuxer.audioInfo.sampleRate}async getLiveRefreshInterval(){return null}getDisposition(){return{..._e}}async getDecoderConfig(){return g(this.demuxer.audioInfo),{codec:"flac",numberOfChannels:this.demuxer.audioInfo.numberOfChannels,sampleRate:this.demuxer.audioInfo.sampleRate,description:this.demuxer.audioInfo.description}}async getPacket(t,e){if(g(this.demuxer.audioInfo),t<0)return null;let r=await this.demuxer.readingMutex.acquire();try{for(;;){let n=Q(this.demuxer.loadedSamples,t,c=>c.blockOffset/this.demuxer.audioInfo.sampleRate);if(n===-1){await this.demuxer.advanceReader();continue}let a=this.demuxer.loadedSamples[n],s=a.blockOffset/this.demuxer.audioInfo.sampleRate,o=a.blockSize/this.demuxer.audioInfo.sampleRate;if(s+o<=t){if(this.demuxer.lastSampleLoaded)return this.getPacketAtIndex(this.demuxer.loadedSamples.length-1,e);await this.demuxer.advanceReader();continue}return this.getPacketAtIndex(n,e)}}finally{r()}}async getNextPacket(t,e){let r=await this.demuxer.readingMutex.acquire();try{let n=t.sequenceNumber+1;if(this.demuxer.lastSampleLoaded&&n>=this.demuxer.loadedSamples.length)return null;for(;n>=this.demuxer.loadedSamples.length&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(n,e)}finally{r()}}getKeyPacket(t,e){return this.getPacket(t,e)}getNextKeyPacket(t,e){return this.getNextPacket(t,e)}async getPacketAtIndex(t,e){let r=this.demuxer.loadedSamples[t];if(!r)return null;let n;if(e.metadataOnly)n=Te;else{let o=this.demuxer.reader.requestSlice(r.byteOffset,r.byteSize);if(_(o)&&(o=await o),!o)return null;n=V(o,r.byteSize)}g(this.demuxer.audioInfo);let a=r.blockOffset/this.demuxer.audioInfo.sampleRate,s=r.blockSize/this.demuxer.audioInfo.sampleRate;return new X(n,"key",a,s,t,r.byteSize)}async getFirstPacket(t){for(;this.demuxer.loadedSamples.length===0&&!this.demuxer.lastSampleLoaded;)await this.demuxer.advanceReader();return this.getPacketAtIndex(0,t)}};var Gs=i=>{let t="video/MP2T",e=[...new Set(i.filter(Boolean))];return e.length>0&&(t+=`; codecs="${e.join(", ")}"`),t};var am="PES packet is missing PTS where it was expected. PES packets without PTS are not currently supported. If you think this file should be supported, please report it.",rm=5,Cp=1212435798,Pp=1212436562,Ip=1146376960,Ep=new Set([133,134,162]),im=new Set,js=class extends Ae{constructor(e){super(e);this.metadataPromise=null;this.elementaryStreams=[];this.trackBackingEntries=[];this.packetOffset=0;this.packetStride=-1;this.sectionEndPositions=[];this.seekChunkSize=5*1024*1024;this.minReferencePointByteDistance=-1;this.timestampWrapInfo=null;this.reader=e._reader}async readMetadata(){return this.metadataPromise??=(async()=>{let e=205,r=this.reader.requestSlice(0,e);_(r)&&(r=await r),g(r);let n=V(r,e);if(n[0]===71&&n[188]===71)this.packetOffset=0,this.packetStride=188;else if(n[0]===71&&n[204]===71)this.packetOffset=0,this.packetStride=204;else if(n[4]===71&&n[196]===71)this.packetOffset=4,this.packetStride=192;else throw new Error("Unreachable.");let a=256;this.minReferencePointByteDistance=a*this.packetStride;let s=this.packetOffset,o=null,c=!1,u=!1;for(;;){let l=await this.readPacketHeader(s);if(!l)break;if(l.payloadUnitStartIndicator===0){s+=this.packetStride;continue}if(u&&!this.elementaryStreams.some(h=>h.pid===l.pid)){s+=this.packetStride;continue}let d=await this.readSection(s,!0,!u);if(!d)break;let m=3,f=32,p=!1;if(!u&&d.pid!==0&&!(d.payload[0]===0&&d.payload[1]===0&&d.payload[2]===1)){let y=new H(d.payload),k=y.readAlignedByte();y.skipBits(8*k),p=y.readBits(8)===2}if(d.pid===0&&!c){let h=new H(d.payload),y=h.readAlignedByte();h.skipBits(8*y),h.skipBits(14);let k=h.readBits(10);for(h.skipBits(40);8*(k+m)-h.pos>f;){let T=h.readBits(16);h.skipBits(3);let w=h.readBits(13);if(T!==0){if(o!==null)throw new Error("Only files with a single program are supported.");o=w}}if(o===null)throw new Error("Program Association Table must link to a Program Map Table.");c=!0}else if((d.pid===o||p)&&!u){let h=new H(d.payload),y=h.readAlignedByte();h.skipBits(8*y),h.skipBits(12);let k=h.readBits(12);h.skipBits(43);let T=h.readBits(13);h.skipBits(6);let w=h.readBits(10),A=h.pos+8*w,x=!1;for(;h.pos=4){let I=h.readBits(32);x||=I===Cp||I===Pp}h.pos=S}for(h.pos=A;8*(k+m)-h.pos>f;){let C=h.readBits(8);h.skipBits(3);let P=h.readBits(13);h.skipBits(6);let S=h.readBits(10),I=h.pos+8*S,E=!1,v=!1,F=!1;for(;h.pos=4){let pe=h.readBits(32);F||=(pe&4294967040)===Ip}h.pos=ie}let O=null,D=x&&Ep.has(C)?130:C;switch(D){case 27:case 36:O={type:"video",codec:C===27?"avc":"hevc",decoderConfig:null,avcCodecInfo:null,hevcCodecInfo:null,colorSpace:{primaries:null,transfer:null,matrix:null,fullRange:null},width:-1,height:-1,squarePixelWidth:-1,squarePixelHeight:-1,reorderSize:-1};break;case 3:case 4:case 15:case 129:case 135:case 130:case 138:{let U;D===3||D===4?U="mp3":D===15?U="aac":D===129?U="ac3":D===135?U="eac3":U="dts",O={type:"audio",codec:U,decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}}break;case 6:v?O={type:"audio",codec:"eac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:E?O={type:"audio",codec:"ac3",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1}:F&&(O={type:"audio",codec:"dts",decoderConfig:null,aacCodecInfo:null,dtsFormat:null,numberOfChannels:-1,sampleRate:-1});break;default:im.has(C)||(z._warn(`Note: MPEG-TS streams with stream_type 0x${C.toString(16)} are not currently supported.`),im.add(C))}O&&this.elementaryStreams.push({demuxer:this,pid:P,streamType:C,initialized:!1,firstSection:null,canBeTrustedWithKeyPackets:!1,info:O,referencePesPackets:[]})}u=!0}else{let h=this.elementaryStreams.find(y=>y.pid===d.pid);e:if(h&&!h.initialized){let y=pn(this,d,!0);if(!y)throw new Error(`Couldn't read first PES packet for Elementary Stream with PID ${h.pid}`);if(h.firstSection=d,h.canBeTrustedWithKeyPackets=d.randomAccessIndicator===1,this.input._initInput){let w=(await this.input._initInput._getDemuxer()).elementaryStreams.find(A=>A.pid===d.pid&&A.info.codec===h.info.codec);if(w){h.info=w.info,h.initialized=!0;break e}}let k=new vi(h,y);if(h.info.type==="video"){for(;;){let T=k;if(T.suppliedPacket=null,await k.markNextPacket(),h.info.codec==="avc"){if(!k.suppliedPacket)throw new Error("Invalid AVC video stream; could not extract AVCDecoderConfigurationRecord from any packet.");if(h.info.avcCodecInfo=Zt(k.suppliedPacket.data),!h.info.avcCodecInfo)continue;let w=h.info.avcCodecInfo.sequenceParameterSets[0];g(w);let A=Jt(w);h.info.width=A.displayWidth,h.info.height=A.displayHeight;let x=A.pixelAspectRatio.num,C=A.pixelAspectRatio.den;h.info.squarePixelWidth=h.info.width,h.info.squarePixelHeight=h.info.height,x>0&&C>0&&(x>C?h.info.squarePixelWidth=Math.round(h.info.width*x/C):h.info.squarePixelHeight=Math.round(h.info.height*C/x)),h.info.colorSpace={primaries:ut[A.colourPrimaries],transfer:lt[A.transferCharacteristics],matrix:dt[A.matrixCoefficients],fullRange:!!A.fullRangeFlag},h.info.reorderSize=A.maxDecFrameBuffering;break}else if(h.info.codec==="hevc"){if(!k.suppliedPacket)throw new Error("Invalid HEVC video stream; could not extract HVCDecoderConfigurationRecord from first packet.");if(h.info.hevcCodecInfo=er(k.suppliedPacket.data),!h.info.hevcCodecInfo)continue;let A=h.info.hevcCodecInfo.arrays.find(S=>S.nalUnitType===33).nalUnits[0];g(A);let x=xi(A);h.info.width=x.displayWidth,h.info.height=x.displayHeight;let C=x.pixelAspectRatio.num,P=x.pixelAspectRatio.den;h.info.squarePixelWidth=h.info.width,h.info.squarePixelHeight=h.info.height,C>0&&P>0&&(C>P?h.info.squarePixelWidth=Math.round(h.info.width*C/P):h.info.squarePixelHeight=Math.round(h.info.height*P/C)),h.info.colorSpace={primaries:ut[x.colourPrimaries],transfer:lt[x.transferCharacteristics],matrix:dt[x.matrixCoefficients],fullRange:!!x.fullRangeFlag},h.info.reorderSize=x.maxDecFrameBuffering;break}else throw new Error("Unhandled.")}h.info.decoderConfig={codec:Kr({width:h.info.width,height:h.info.height,codec:h.info.codec,codecDescription:null,colorSpace:h.info.colorSpace,avcType:1,avcCodecInfo:h.info.avcCodecInfo,hevcCodecInfo:h.info.hevcCodecInfo,vp9CodecInfo:null,av1CodecInfo:null,proresFormat:null}),codedWidth:h.info.width,codedHeight:h.info.height,colorSpace:h.info.colorSpace},(h.info.width!==h.info.squarePixelWidth||h.info.height!==h.info.squarePixelHeight)&&(h.info.decoderConfig.displayAspectWidth=h.info.squarePixelWidth,h.info.decoderConfig.displayAspectHeight=h.info.squarePixelHeight),h.initialized=!0}else{if(await k.markNextPacket(),!k.suppliedPacket)throw new Error(`Couldn't parse first media packet for Elementary Stream with PID ${h.pid}`);if(h.info.codec==="aac"){let T=xe.tempFromBytes(k.suppliedPacket.data),w=et(T);if(!w)throw new Error("Invalid AAC audio stream; could not read ADTS frame header from first packet.");h.info.aacCodecInfo={isMpeg2:!1,objectType:w.objectType},h.info.numberOfChannels=Xt[w.channelConfiguration],h.info.sampleRate=kt[w.samplingFrequencyIndex]}else if(h.info.codec==="mp3"){let T=M(xe.tempFromBytes(k.suppliedPacket.data)),w=jr(T,k.suppliedPacket.data.byteLength);if(!w.header)throw new Error("Invalid MP3 audio stream; could not read frame header from first packet.");h.info.numberOfChannels=Xr(w.header.channel),h.info.sampleRate=w.header.sampleRate}else if(h.info.codec==="ac3"){let T=ns(k.suppliedPacket.data);if(!T)throw new Error("Invalid AC-3 audio stream; could not read sync frame from first packet.");if(T.fscod===3)throw new Error("Invalid AC-3 audio stream; reserved sample rate code found in first packet.");h.info.numberOfChannels=Gn[T.acmod]+T.lfeon,h.info.sampleRate=Ai[T.fscod]}else if(h.info.codec==="eac3"){let T=as(k.suppliedPacket.data);if(!T)throw new Error("Invalid E-AC-3 audio stream; could not read sync frame from first packet.");let w=ss(T);if(w===null)throw new Error("Invalid E-AC-3 audio stream; reserved sample rate code found in first packet.");h.info.numberOfChannels=os(T),h.info.sampleRate=w}else if(h.info.codec==="dts"){let T=Yn(k.suppliedPacket.data);if(!T)throw new Error("Invalid DTS audio stream; could not read frame header from first packet.");h.info.numberOfChannels=T.numberOfChannels,h.info.sampleRate=T.sampleRate,T.core&&(h.info.dtsFormat=T.hasExtensions?"dtsh":"dtsc")}else throw new Error("Unhandled.");h.info.decoderConfig={codec:Ji({codec:h.info.codec,codecDescription:null,aacCodecInfo:h.info.aacCodecInfo,dtsFormat:h.info.dtsFormat}),numberOfChannels:h.info.numberOfChannels,sampleRate:h.info.sampleRate},h.initialized=!0}}}if(u&&this.elementaryStreams.every(h=>h.initialized))break;s+=this.packetStride}if(!u)throw c?new Error("No Program Map Table found in the file."):new Error("No Program Association Table found in the file.");for(let l of this.elementaryStreams)l.initialized&&(l.info.type==="video"?this.trackBackingEntries.push(new qc(l)):this.trackBackingEntries.push(new Kc(l)))})()}async getTrackBackings(){return await this.readMetadata(),this.trackBackingEntries}async getMetadataTags(){return{}}async getMimeType(){await this.readMetadata();let e=await Promise.all(this.trackBackingEntries.map(r=>r.getDecoderConfig().then(n=>n?.codec??null)));return Gs(e)}async readSection(e,r,n=!1){let a=e,s=e,o=[],c=0,u=null,l=!0,d=0;for(;;){let f=await this.readPacket(s);if(s+=this.packetStride,!f)break;if(u){if(f.pid!==u.pid){if(n)break;continue}if(f.payloadUnitStartIndicator===1)break}else{if(f.payloadUnitStartIndicator===0)break;u=f}let p=!!(f.adaptationFieldControl&2),b=!!(f.adaptationFieldControl&1),h=0;if(p&&(h=1+f.body[0],f===u&&h>1&&(d=f.body[1]>>6&1)),b&&(h===0?(o.push(f.body),c+=f.body.byteLength):(o.push(f.body.subarray(h)),c+=f.body.byteLength-h)),a=s,!r&&c>=64){l=!1;break}if(pr(this.sectionEndPositions,a,k=>k)!==-1){l=!1;break}}if(l){let f=Q(this.sectionEndPositions,a,p=>p);this.sectionEndPositions.splice(f+1,0,a)}if(!u)return null;let m;if(o.length===1)m=o[0];else{let f=o.reduce((b,h)=>b+h.length,0);m=new Uint8Array(f);let p=0;for(let b of o)m.set(b,p),p+=b.length}return{startPos:e,endPos:r?a:null,pid:u.pid,payload:m,randomAccessIndicator:d}}async readPacketHeader(e){let r=this.reader.requestSlice(e,4);if(_(r)&&(r=await r),!r)return null;if(L(r)!==71)throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");let a=he(r),s=a>>15,o=a>>14&1,c=a>>13&1,u=a&8191,l=L(r),d=l>>6,m=l>>4&3,f=l&15;return{payloadUnitStartIndicator:o,pid:u,adaptationFieldControl:m}}async readPacket(e){let r=this.reader.requestSlice(e,188);if(_(r)&&(r=await r),!r)return null;let n=V(r,188);if(n[0]!==71)throw new Error("Invalid TS packet sync byte. Likely an internal bug, please report this file.");let s=(n[1]<<8)+n[2],o=s>>15,c=s>>14&1,u=s>>13&1,l=s&8191,d=n[3],m=d>>6,f=d>>4&3,p=d&15;return{payloadUnitStartIndicator:c,pid:l,adaptationFieldControl:f,body:n.subarray(4)}}normalizeTimestamp(e){if(!this.timestampWrapInfo){let a=60*9e4;this.timestampWrapInfo={reference:e-a,offset:e>=8589934592-a?-8589934592:8589934592}}let{reference:r,offset:n}=this.timestampWrapInfo;return n<0&&e>=r||n>0&&e{if(t.payload.byteLength<3)return null;let r=new H(t.payload);if(r.readBits(24)!==1)return null;let a=r.readBits(8);if(r.skipBits(16),a===188||a===190||a===191||a===240||a===241||a===255||a===242||a===248)return null;r.skipBits(8);let s=r.readBits(2);r.skipBits(14);let o=null;if(s===2||s===3)o=0,r.skipBits(4),o+=r.readBits(3)*(1<<30),r.skipBits(1),o+=r.readBits(15)*32768,r.skipBits(1),o+=r.readBits(15),o=i.normalizeTimestamp(o);else if(e)throw new Error(am);return{sectionStartPos:t.startPos,sectionEndPos:t.endPos,pts:o,randomAccessIndicator:t.randomAccessIndicator}},pn=(i,t,e)=>{g(t.endPos!==null);let r=Ei(i,t,e);if(!r)return null;let n=new H(t.payload);n.skipBits(32);let a=n.readBits(16),s=6;n.skipBits(16);let o=n.readBits(8),c=n.pos+8*o;n.pos=c;let u=c/8;g(Number.isInteger(u));let l=t.payload.subarray(u,a>0?s+a:t.payload.byteLength);return{...r,data:l}},Xs=class i{constructor(t){this.elementaryStream=t;this.packetBuffers=new WeakMap;this.packetSectionStarts=new WeakMap}getId(){return this.elementaryStream.pid}getNumber(){let t=this.elementaryStream.demuxer,e=this.elementaryStream.info.type,r=0;for(let n of t.trackBackingEntries)if(n.getType()===e&&r++,g(n instanceof i),n.elementaryStream===this.elementaryStream)break;return r}getCodec(){throw new Error("Not implemented on base class.")}getInternalCodecId(){return this.elementaryStream.streamType}getName(){return null}getLanguageCode(){return se}getDisposition(){return{..._e,primary:!1}}getTimeResolution(){return 9e4}isRelativeToUnixEpoch(){return!1}getUnixTimeForTimestamp(){return null}getPairingMask(){return 1n}getBitrate(){return null}getAverageBitrate(){return null}async getDurationFromMetadata(){return null}async getLiveRefreshInterval(){return null}createEncodedPacket(t,e,r){let n;return this.allPacketsAreKeyPackets()?n="key":n=t.randomAccessIndicator===1?"key":"delta",new X(r.metadataOnly?Te:t.data,n,t.pts/9e4,Math.max(e/9e4,0),t.sequenceNumber,t.data.byteLength)}async getFirstPacket(t){let e=this.elementaryStream.firstSection;g(e);let r=pn(this.elementaryStream.demuxer,e,!0);g(r);let n=new vi(this.elementaryStream,r),a=new ua(this,n),s=await a.readNext();if(!s)return null;let o=this.createEncodedPacket(s.packet,s.duration,t);return this.packetBuffers.set(o,a),this.packetSectionStarts.set(o,s.packet.sectionStartPos),o}async getNextPacket(t,e){let r=this.packetBuffers.get(t);if(r){let l=await r.readNext();if(!l)return null;this.packetBuffers.delete(t);let d=this.createEncodedPacket(l.packet,l.duration,e);return this.packetBuffers.set(d,r),this.packetSectionStarts.set(d,l.packet.sectionStartPos),d}let n=this.packetSectionStarts.get(t);if(n===void 0)throw new Error("Packet was not created from this track.");let a=this.elementaryStream.demuxer,s=await a.readSection(n,!0);g(s);let o=pn(a,s,!0);g(o);let c=new vi(this.elementaryStream,o);r=new ua(this,c);let u=t.sequenceNumber;for(;;){let l=await r.readNext();if(!l)return null;if(l.packet.sequenceNumber>u){let d=this.createEncodedPacket(l.packet,l.duration,e);return this.packetBuffers.set(d,r),this.packetSectionStarts.set(d,l.packet.sectionStartPos),d}}}async getNextKeyPacket(t,e){let r=t;for(;;){if(r=await this.getNextPacket(r,e),!r)return null;if(r.type==="key")return r}}getPacket(t,e){return this.doPacketLookup(t,!1,e)}getKeyPacket(t,e){return this.doPacketLookup(t,!0,e)}async doPacketLookup(t,e,r){let n=hr(t*9e4),a=this.elementaryStream.demuxer,{reader:s,seekChunkSize:o}=a,c=this.elementaryStream.pid,u=async(w,A,x)=>{let C=w;for(;Cw.pts),b=p!==-1?f[p]:null;if(b&&n-b.pts<9e4/2)m=b.sectionStartPos;else{let w=0;if(s.fileSize!==null){let A=Math.ceil(s.fileSize/o);if(A>1){let x=0,C=A-1;for(w=x;x<=C;){let P=Math.floor((x+C)/2),S=Wa(P*o,a.packetStride)+d.sectionStartPos,I=S+o,E=await u(S,I,!1);if(!E){C=P-1;continue}E.pesPacketHeader.pts<=n?(w=P,x=P+1):C=P-1}}}m=Wa(w*o,a.packetStride)+d.sectionStartPos}let y=(await u(m,s.fileSize??1/0,!1))?.pesPacketHeader??null;y||(y=d);let k=this.getReorderSize(),T=async(w,A)=>{let x=await a.readSection(w,!0);g(x);let C=pn(a,x,!0);g(C);let P=new vi(this.elementaryStream,C),S=new ua(this,P);for(;!((Z(S.presentationOrderPackets)?.pts??-1/0)>=n||!await S.readNextPacket()););let I=Ur(S.presentationOrderPackets,A);if(I===-1)return null;let E=S.presentationOrderPackets[I],v=I===0?0:E.pts-S.presentationOrderPackets[I-1].pts;for(;S.decodeOrderPackets[0]!==E;)S.decodeOrderPackets.shift();S.lastDuration=v;let F=await S.readNext();g(F);let O=this.createEncodedPacket(F.packet,F.duration,r);return this.packetBuffers.set(O,S),this.packetSectionStarts.set(O,F.packet.sectionStartPos),O};if(!e||this.allPacketsAreKeyPackets()){e:for(;;){let w=y.sectionStartPos+a.packetStride;for(;;){let A=await a.readPacketHeader(w);if(!A)break e;if(A.pid===c&&A.payloadUnitStartIndicator===1){let x=await a.readSection(w,!1);if(x){let C=Ei(a,x,!1);if(C&&C.pts!==null){if(C.pts>n)break e;y=C,Qc(this.elementaryStream,y);break}}}w+=a.packetStride}}e:for(let w=0;w=a.packetOffset;){let x=await a.readPacketHeader(A);if(!x)break e;if(x.pid===c&&x.payloadUnitStartIndicator===1){let C=await a.readSection(A,!1);if(C){let P=Ei(a,C,!1);if(P&&P.pts!==null){y=P;break}}}A-=a.packetStride}}return T(y.sectionStartPos,w=>w.pts<=n)}else{let w=m,A=null,x=!this.elementaryStream.canBeTrustedWithKeyPackets;for(;;){let C=null,P=w<=d.sectionStartPos,S,I=null;if(P)S=d,I=l;else{let F=await u(w,s.fileSize??1/0,x);S=F?.pesPacketHeader??null,I=F?.section??null}let E=!1,v=0;e:for(;S&&!(A!==null&&S.sectionStartPos>=A);){if(S.pts<=n){let O;if(this.elementaryStream.canBeTrustedWithKeyPackets)O=S.randomAccessIndicator===1;else{g(I);let D=pn(a,I,!0);g(D);let U=new vi(this.elementaryStream,D);await U.markNextPacket(),O=U.suppliedPacket?.randomAccessIndicator===1}O&&(C=S)}if(S.pts>n&&(E=!0),E&&(v++,v>k))break;let F=S.sectionStartPos+a.packetStride;for(;;){let O=await a.readPacketHeader(F);if(!O)break e;if(O.pid===c&&O.payloadUnitStartIndicator===1){let D=await a.readSection(F,x);if(D){let U=Ei(a,D,!1);if(U&&U.pts!==null){S=U,I=D,Qc(this.elementaryStream,S);break}}}F+=a.packetStride}}if(C){let F=C;if(v===0)e:for(let D=0;D=a.packetOffset;){let K=await a.readPacketHeader(U);if(!K)break e;if(K.pid===c&&K.payloadUnitStartIndicator===1){let ie=await a.readSection(U,x);if(ie){let pe=Ei(a,ie,!1);if(pe&&pe.pts!==null){F=pe;break}}}U-=a.packetStride}}let O=await T(F.sectionStartPos,D=>D.pts<=n&&D.randomAccessIndicator===1);return g(O),O}if(P)return null;A=w,w=Math.max(Wa(w-d.sectionStartPos-o,a.packetStride)+d.sectionStartPos,d.sectionStartPos)}}}},qc=class extends Xs{getType(){return"video"}getCodec(){return this.elementaryStream.info.codec}getCodedWidth(){return this.elementaryStream.info.width}getCodedHeight(){return this.elementaryStream.info.height}getSquarePixelWidth(){return this.elementaryStream.info.squarePixelWidth}getSquarePixelHeight(){return this.elementaryStream.info.squarePixelHeight}getTransformationMatrix(){return[...Dr]}async getColorSpace(){return this.elementaryStream.info.colorSpace}async canBeTransparent(){return!1}async getDecoderConfig(){return g(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!1}getReorderSize(){return this.elementaryStream.info.reorderSize}},Kc=class extends Xs{getType(){return"audio"}getCodec(){return this.elementaryStream.info.codec}getNumberOfChannels(){return this.elementaryStream.info.numberOfChannels}getSampleRate(){return this.elementaryStream.info.sampleRate}async getDecoderConfig(){return g(this.elementaryStream.info.decoderConfig),this.elementaryStream.info.decoderConfig}allPacketsAreKeyPackets(){return!0}getReorderSize(){return 0}},Qc=(i,t)=>{let e=i.referencePesPackets,r=Q(e,t.sectionStartPos,n=>n.sectionStartPos);if(r>=0){let n=e[r];if(t.pts<=n.pts)return!1;let a=i.demuxer.minReferencePointByteDistance;if(t.sectionStartPos-n.sectionStartPos=t?t:this.bufferData(t-e).then(()=>Math.min(this.endPos-this.currentPos,t))}getCurrentPesPacket(){let t=this.pesPackets[this.currentPesPacketIndex];return g(t),t}async bufferData(t){let e=this.endPos+t;for(;this.endPos=d)break;m=f;let p=u+m;if(m+3>=d){this.seekTo(p);break}let b=l[m+1],h=l[m+2],y=l[m+3],k=0;if(b===0&&h===0&&y===1?k=4:b===0&&h===1&&(k=3),k===0){m++;continue}let T=p;a??=T;let w=m+k,A=w+n,x=6;if(A+(e==="avc"?x:1)>d){this.seekTo(p);break}let P=l[w],S,I,E;if(e==="avc")S=Yt(P),I=S===1||S===2||S===5,E=S===6||S===7||S===8||S===9;else{if(S=_t(P),((P&1)<<5|l[w+1]>>3)>0){m+=k;continue}I=S<=9||S>=16&&S<=21,E=S>=32&&S<=37||S===39||S>=41&&S<=44||S>=48&&S<=55}let v=!1;if(I){let F;if(e==="avc"){let O=l.subarray(A,A+x),D=B(new H(O));F=!s||D<=o,o=D}else F=l[A]>>7===1;F&&(s?v=!0:s=!0)}else E&&s&&(v=!0);if(v){let F=T-a;return this.seekTo(a),this.supplyPacket(F,0)}m+=k}if(ca){let c=this.endPos-a;return this.seekTo(a),this.supplyPacket(c,0)}}else{let e=t.info.codec,r=128;for(;;){let n=this.ensureBuffered(r);_(n)&&(n=await n);let a=this.currentPos;for(;this.currentPos-a>6,d=u[4]&63;if(l===3||d>37){this.seekTo(o+1);continue}let m=od[3*d+l];g(m!==void 0),this.seekTo(o),c=this.ensureBuffered(m),_(c)&&(c=await c);let f=Math.round(cd*9e4/t.info.sampleRate);return this.supplyPacket(c,f)}else if(e==="eac3"){if(s!==11)continue;this.skip(-1);let o=this.currentPos,c=this.ensureBuffered(5);if(_(c)&&(c=await c),c<5)return;let u=this.readBytes(5);if(u[0]!==11||u[1]!==119){this.seekTo(o+1);continue}let d=(((u[2]&7)<<8|u[3])+1)*2,f=u[4]>>6===3?3:u[4]>>4&3,p=Pc[f];this.seekTo(o),c=this.ensureBuffered(d),_(c)&&(c=await c);let b=p*256,h=Math.round(b*9e4/t.info.sampleRate);return this.supplyPacket(c,h)}else if(e==="dts"){if(s!==127&&s!==100)continue;this.skip(-1);let o=this.currentPos,c=this.ensureBuffered($n);if(_(c)&&(c=await c),c<$n)return;let u=this.readBytes($n),l=Ic(u),d=l?null:Zn(u);if(!l&&!d){this.seekTo(o+1);continue}if(d&&!d.asset){this.seekTo(o);let b=Math.min(d.frameSize,ld),h=this.ensureBuffered(b);_(h)&&(h=await h),d=Zn(this.readBytes(h))??d}let m=l?l.frameSize:d.frameSize;if(l){let b=Math.ceil(l.frameSize/4)*4;for(;;){this.seekTo(o);let h=b+cs,y=this.ensureBuffered(h);if(_(y)&&(y=await y),y=0)}async readNext(){if(this.decodeOrderPackets.length===0&&!await this.readNextPacket())return null;await this.ensureCurrentPacketHasNext();let t=this.decodeOrderPackets[0],e=this.presentationOrderPackets.indexOf(t);g(e!==-1);let r;for(e===this.presentationOrderPackets.length-1?r=this.lastDuration:(r=this.presentationOrderPackets[e+1].pts-t.pts,this.lastDuration=r),this.decodeOrderPackets.shift();this.presentationOrderPackets.length>0;){let n=this.presentationOrderPackets[0];if(this.decodeOrderPackets.includes(n))break;this.presentationOrderPackets.shift()}return{packet:t,duration:r}}async readNextPacket(){if(this.reachedEnd)return!1;let t;return this.context.suppliedPacket?t=this.context.suppliedPacket:(await this.context.markNextPacket(),t=this.context.suppliedPacket),this.context.suppliedPacket=null,t?(this.decodeOrderPackets.push(t),this.processPacketThroughReorderBuffer(t),!0):(this.reachedEnd=!0,this.flushReorderBuffer(),!1)}async ensureCurrentPacketHasNext(){let t=this.decodeOrderPackets[0];for(g(t);;){let e=this.presentationOrderPackets.indexOf(t);if(e!==-1&&e<=this.presentationOrderPackets.length-2||!await this.readNextPacket())break}}processPacketThroughReorderBuffer(t){if(this.reorderBuffer.push(t),this.reorderBuffer.length>this.reorderSize){let e=0;for(let n=1;nt.pts-e.pts),this.presentationOrderPackets.push(...this.reorderBuffer),this.reorderBuffer.length=0}};var nr="application/vnd.apple.mpegurl",Gc="#EXT-X-STREAM-INF:",jc="#EXT-X-I-FRAME-STREAM-INF:",Xc="#EXT-X-MEDIA:",bn="#EXT-X-DEFINE:",la="#EXTINF:",$c="#EXT-X-MAP:",Yc="#EXT-X-KEY:",Zc="#EXT-X-MEDIA-SEQUENCE:",Jc="#EXT-X-BYTERANGE:",eu="#EXT-X-PROGRAM-DATE-TIME:",sm="#EXT-X-DISCONTINUITY",tu="#EXT-X-TARGETDURATION:",om="#EXT-X-ENDLIST",ru="#EXT-X-PLAYLIST-TYPE:",cm="#EXT-X-I-FRAMES-ONLY",$s=i=>i.length===0||i.startsWith("#")&&!i.startsWith("#EXT"),ir=class{constructor(t,e){this._attributes={};let r="",n="",a=!1,s=!1,o=!1,c=()=>{if(!r)return;let u=r.trim().toLowerCase();Object.prototype.hasOwnProperty.call(this._attributes,u)&&z._warn(`Duplicate AttributeName "${u}"; using last value`);let l=o||n.startsWith("0x")||n.startsWith("0X");this._attributes[u]=l&&e?e.substitute(n):n,r="",n="",a=!1,o=!1};for(let u=0;uo!==null).length!==1)throw new Error("Invalid #EXT-X-DEFINE tag; exactly one of NAME, IMPORT, or QUERYPARAM must be present.");if(r!==null){let o=e.get("value");if(o===null)throw new Error("Invalid #EXT-X-DEFINE tag; NAME requires VALUE.");this.set(r,o)}else if(n!==null){let o=this.importedVariables?.get(n);if(o===void 0)throw new Error(`Invalid #EXT-X-DEFINE tag; cannot import undefined variable "${n}".`);this.set(n,o)}else if(a!==null){let o=Ll(this.playlistPath,a);if(o===null)throw new Error(`Invalid #EXT-X-DEFINE tag; query parameter "${a}" is missing.`);this.set(a,o)}}substitute(t){return t.replaceAll(_p,(e,r)=>{let n=this.variables.get(r);if(n===void 0)throw new Error(`Invalid M3U8 file; variable "${r}" is referenced before being defined.`);return n})}get(t){return this.variables.get(t)}set(t,e){if(!vp.test(t))throw new Error(`Invalid #EXT-X-DEFINE tag; invalid variable name "${t}".`);if(this.variables.has(t))throw new Error(`Invalid #EXT-X-DEFINE tag; variable "${t}" is already defined.`);this.variables.set(t,e)}};var Ys=class{constructor(t,e,r){this.nextInputCacheAge=0;this.inputCache=[];this.trackBackingsPromise=null;this.firstSegment=null;this.firstSegmentFirstTimestamps=new WeakMap;this.firstTimestampCache=new WeakMap;this.input=t,this.path=e,this.trackDeclarations=r}async getDurationFromMetadata(t){let e=await this.getSegmentAt(1/0,{skipLiveWait:t.skipLiveWait});return e?e.timestamp+e.duration:null}async getUnixTimeForTimestamp(t){let e=await this.getSegmentAt(t,{});if(e??=await this.getFirstSegment({}),!e||e.unixEpochTimestamp===null)return null;let r=t-e.timestamp;return e.unixEpochTimestamp+r}async getTrackBackings(){return this.trackBackingsPromise??=(async()=>{let t=[];if(this.trackDeclarations){for(let e of this.trackDeclarations)if(e.type==="video"){let r=wi(t,n=>n.getType()==="video")+1;t.push(new Js(this,e,r))}else if(e.type==="audio"){let r=wi(t,n=>n.getType()==="audio")+1;t.push(new eo(this,e,r))}}else{if(this.firstSegment=await this.getFirstSegment({}),!this.firstSegment)return[];let r=await this.getInputForSegment(this.firstSegment).getTracks();for(let n of r)if(n.type==="video"){let a=wi(t,s=>s.getType()==="video")+1;t.push(new Js(this,{id:t.length+1,type:"video"},a))}else if(n.type==="audio"){let a=wi(t,s=>s.getType()==="audio")+1;t.push(new eo(this,{id:t.length+1,type:"audio"},a))}}return t})()}async getFirstTimestampForInput(t){let e=this.firstTimestampCache.get(t);if(e!==void 0)return e;let r=await t.getFirstTimestamp();return this.firstTimestampCache.set(t,r),r}async getMediaOffset(t,e){let r=t.firstSegment??t,n;if(this.firstSegmentFirstTimestamps.has(r))n=this.firstSegmentFirstTimestamps.get(r);else{let u=this.getInputForSegment(r);n=await this.getFirstTimestampForInput(u),this.firstSegmentFirstTimestamps.set(r,n)}if(r===t)return r.timestamp-n;let a=await this.getFirstTimestampForInput(e),s=t.timestamp-r.timestamp,c=a-n-s;return Math.abs(c)<=Math.min(.25,s)?r.timestamp-n:t.timestamp-a}dispose(){for(let t of this.inputCache)t.input.dispose();this.inputCache.length=0}},Zs=class{constructor(t,e,r){this.packetInfos=new WeakMap;this.hydrationPromise=null;this.firstInputTrack=null;this.firstSegment=null;this.segmentedInput=t,this.decl=e,this.number=r}hydrate(){return this.hydrationPromise??=(async()=>{if(this.segmentedInput.firstSegment??=await this.segmentedInput.getFirstSegment({}),!this.segmentedInput.firstSegment)throw new Error("Missing first segment, can't retrieve track.");let t=this.segmentedInput.firstSegment,e=null;for(;t&&(e=(await this.segmentedInput.getInputForSegment(t).getTracks()).find(a=>a.type===this.decl.type&&a.number===this.number)??null,!e);)t=await this.segmentedInput.getNextSegment(t,{});if(!e)throw new Error("No matching track found in underlying media data.");this.firstInputTrack=e,this.firstSegment=t})()}getId(){return this.decl.id}getType(){return this.decl.type}getNumber(){return this.number}delegate(t){return this.firstInputTrack?t():this.hydrate().then(t)}async getDecoderConfig(){return this.delegate(()=>this.firstInputTrack._backing.getDecoderConfig())}getHasOnlyKeyPackets(){return this.delegate(()=>this.firstInputTrack._backing.getHasOnlyKeyPackets?.()??null)}getPairingMask(){return 1n}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getInternalCodecId(){return this.delegate(()=>this.firstInputTrack._backing.getInternalCodecId())}getDisposition(){return this.delegate(()=>this.firstInputTrack._backing.getDisposition())}getLanguageCode(){return this.delegate(()=>this.firstInputTrack._backing.getLanguageCode())}getName(){return this.delegate(()=>this.firstInputTrack._backing.getName())}getTimeResolution(){return this.delegate(()=>this.firstInputTrack._backing.getTimeResolution())}async isRelativeToUnixEpoch(){return await this.hydrate(),g(this.segmentedInput.firstSegment),this.segmentedInput.firstSegment.unixEpochTimestamp===this.segmentedInput.firstSegment.timestamp}getUnixTimeForTimestamp(t){return this.segmentedInput.getUnixTimeForTimestamp(t)}getBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getBitrate())}getAverageBitrate(){return this.delegate(()=>this.firstInputTrack._backing.getAverageBitrate())}getDurationFromMetadata(t){return this.segmentedInput.getDurationFromMetadata(t)}getLiveRefreshInterval(){return this.segmentedInput.getLiveRefreshInterval()}async createAdjustedPacket(t,e,r){g(t.sequenceNumber>=0),g(this.segmentedInput.firstSegment);let n=await this.segmentedInput.getMediaOffset(e,r.input),a=e.timestamp-this.segmentedInput.firstSegment.timestamp,s=t.clone({timestamp:qt(t.timestamp+n,await r.getTimeResolution()),sequenceNumber:Math.floor(1e8*a)+t.sequenceNumber});return this.packetInfos.set(s,{segment:e,track:r,sourcePacket:t}),s}async getFirstPacket(t){await this.hydrate(),g(this.firstInputTrack),g(this.firstSegment);let e=this.firstInputTrack,r=this.firstSegment;for(;;){if(e){let s=await e._backing.getFirstPacket(t);if(s)return this.createAdjustedPacket(s,r,e)}if(r=await this.segmentedInput.getNextSegment(r,{skipLiveWait:t.skipLiveWait}),!r)break;e=(await this.segmentedInput.getInputForSegment(r).getTracks()).find(s=>s.type===this.firstInputTrack.type&&s.number===this.firstInputTrack.number)??null}return null}getNextPacket(t,e){return this._getNextInternal(t,e,!1)}getNextKeyPacket(t,e){return this._getNextInternal(t,e,!0)}async _getNextInternal(t,e,r){let n=this.packetInfos.get(t);if(!n)throw new Error("Packet was not created from this track.");let a=r?await n.track._backing.getNextKeyPacket(n.sourcePacket,e):await n.track._backing.getNextPacket(n.sourcePacket,e);if(a)return this.createAdjustedPacket(a,n.segment,n.track);let s=n.segment;for(;;){let o=await this.segmentedInput.getNextSegment(s,{skipLiveWait:e.skipLiveWait});if(!o)return null;let l=(await this.segmentedInput.getInputForSegment(o).getTracks()).find(m=>m.type===n.track.type&&m.number===n.track.number);if(!l){s=o;continue}let d=await l._backing.getFirstPacket(e);return d?this.createAdjustedPacket(d,o,l):null}}getPacket(t,e){return this._getPacketInternal(t,e,!1)}getKeyPacket(t,e){return this._getPacketInternal(t,e,!0)}async _getPacketInternal(t,e,r){let n=await this.segmentedInput.getSegmentAt(t,{skipLiveWait:e.skipLiveWait});if(!n)return null;for(await this.hydrate();n;){let a=this.segmentedInput.getInputForSegment(n),o=(await a.getTracks()).find(d=>d.type===this.firstInputTrack.type&&d.number===this.firstInputTrack.number);if(!o){n=await this.segmentedInput.getPreviousSegment(n,{skipLiveWait:e.skipLiveWait});continue}let c=await this.segmentedInput.getMediaOffset(n,a),u=t-c,l=r?await o._backing.getKeyPacket(u,e):await o._backing.getPacket(u,e);if(!l){n=await this.segmentedInput.getPreviousSegment(n,{skipLiveWait:e.skipLiveWait});continue}return this.createAdjustedPacket(l,n,o)}return null}},Js=class extends Zs{getType(){return"video"}getCodec(){return this.delegate(()=>this.firstInputTrack._backing.getCodec())}getCodedWidth(){return this.delegate(()=>this.firstInputTrack._backing.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.firstInputTrack._backing.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.firstInputTrack._backing.getSquarePixelWidth())}getSquarePixelHeight(){return 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FinalizationRegistry<"u"&&(nu=new FinalizationRegistry(i=>{i()}));var qe=class extends ct{constructor(){super();this._disposed=!1;this._refCount=0;this._usedForHls=!1;this._refFinalizationRegistry=null;this._sizePromise=null;this.onread=null;typeof FinalizationRegistry<"u"&&(this._refFinalizationRegistry=new FinalizationRegistry(e=>{e._decrementRefCount()}))}async getSizeOrNull(){if(this._disposed)throw new ke;return this._sizePromise??=(async()=>{let e=this._getFileSize();return e!==void 0||(await this._read(0,1,uu,lu),e=this._getFileSize(),g(e!==void 0)),e})()}async getSize(){if(this._disposed)throw new ke;let e=await this.getSizeOrNull();if(e===null)throw new Error("Cannot determine the size of an unsized source.");return e}slice(e,r){if(!Number.isInteger(e)||e<0)throw new TypeError("offset must be a non-negative integer.");if(r!==void 0&&(!Number.isInteger(r)||r<0))throw new TypeError("length, when provided, must be a non-negative integer.");return new 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_runWorker(e){g(e.strictTarget);let r=this._readers.get(e);for(r===void 0&&("stream"in this._blob&&!Qt()&&this._options.useStreamReader!==!1?(r=this._blob.slice(e.currentPos).stream().getReader(),dm?.register(e,r,e)):r=null,this._readers.set(e,r));e.currentPos{})}_dispose(){this._orchestrator.dispose()}},Rp=.5*2**20,Fp=(i,t,e)=>{if(t instanceof Error&&(t.message.includes("Failed to fetch")||t.message.includes("Load failed")||t.message.includes("NetworkError when attempting to fetch resource"))&&typeof window<"u"){let n=null;try{typeof window<"u"&&typeof window.location<"u"&&(n=new URL(e instanceof Request?e.url:e,window.location.href).origin)}catch{}if((typeof navigator<"u"&&typeof navigator.onLine=="boolean"?navigator.onLine:!0)&&n!==null&&n!==window.location.origin)return z._warn("Request will not be retried because a CORS error was suspected due to different origins. 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The used fetch function must provide the response body as a ReadableStream.");if(n.status!==206){if(this._sequentialBacking){n.body.cancel().catch(()=>{});return}if(!this._usedForHls){let s=new URL(this._url instanceof Request?this._url.url:this._url,typeof window<"u"?window.location.href:void 0);s.origin!=="null"&&!(s.pathname.endsWith(".m3u8")||s.pathname.endsWith(".m3u"))&&(mm.has(s.origin)||(z._warn(`HTTP server (origin ${s.origin}) did not respond to a range request with 206 Partial Content, meaning the resource will now be streamed sequentially, with old data being evicted from the cache. Reads into evicted regions will throw. To enable efficient media file streaming across a network, please make sure your server supports range requests. Alternatively, set maxCacheSize to Infinity in the UrlSource options to keep the entire resource in memory.`),mm.add(s.origin)))}this._abortControllers.delete(e),this._transitionToSequentialMode(n.body,r);return}let a=n.body.getReader();for(;;){if(e.currentPos>=e.targetPos||e.aborted){r.abort(),this._orchestrator.signalWorkerStoppedRunning(e);return}let s;try{s=await a.read()}catch(u){if(r.signal.aborted)throw u;let l=this._getRetryDelay(1,u,this._url);if(l!==null){z._error("Error while reading response stream. 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The used fetch function must provide the response body as a ReadableStream.");n=b.body.getReader(),s=b.status===206?0:a;continue}if(d.done){l.close();return}let m=d.value;if(s>0){let f=Math.min(s,m.length);s-=f,m=m.subarray(f)}if(m.length!==0){a+=m.length,l.enqueue(m);return}}},cancel:()=>n.cancel().catch(()=>{})}),c=new yn(o,{maxCacheSize:this._orchestrator.options.maxCacheSize,handleUnhandledError:this._options.handleUnhandledError});c._endIndex=this._orchestrator.fileSize,c._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. Because the HTTP server did not honor the range request, data can only be read sequentially, with old data being evicted from the cache. To fix this issue, either ensure your server responds to range requests with 206 Partial Content, or set maxCacheSize to Infinity in the UrlSource options. Note that the latter will store the entire file in the cache if needed, no matter how large.",c.on("read",({start:l,end:d})=>this._dispatchRead(l,d)),this._sequentialBacking=c;let u=new Set;for(let l of this._orchestrator.workers){for(let d of l.pendingSlices)u.add(d);l.aborted=!0,l.pendingSlices.length=0}for(let l of this._orchestrator.queuedReads)for(let d of l.pendingSlices)u.add(d);this._orchestrator.workers.length=0,this._orchestrator.queuedReads.length=0;for(let[,l]of this._abortControllers)l.abort();this._abortControllers.clear();for(let l of u){let d=c._read(l.start,l.start+l.bytes.length);_(d)?d.then(m=>{m?(g(m.offset===l.start),l.resolve(m.bytes)):l.resolve(null)},m=>l.reject(m)):(g(d===null),l.resolve(null))}}_dispose(){this._orchestrator.dispose();for(let[,e]of this._abortControllers)e.abort();this._abortControllers.clear(),this._sequentialAbortController?.abort(),this._sequentialBacking&&(this._sequentialBacking._disposed=!0,this._sequentialBacking._dispose())}},Mp=/^bytes=(\d+)-(\d*)$/,Bp=i=>{let t=Mp.exec(i.trim());if(!t)return null;let e=Number(t[1]),r=t[2]===""?null:Number(t[2]);return r!==null&&rnew i(n.path,r));this._fileHandle=null;this._customSource=new ma({getSize:async()=>{let n=await lm.fs.open(e,"r");return this._fileHandle=n,nu?.register(this,()=>{n.close()},this),(await n.stat()).size},read:async(n,a)=>{g(this._fileHandle);let s=new Uint8Array(a-n);return await this._fileHandle.read(s,0,a-n,n),s},maxCacheSize:r.maxCacheSize,prefetchProfile:"fileSystem",handleUnhandledError:r.handleUnhandledError})}_read(e,r,n,a){return this._customSource._read(e,r,n,a)}_getFileSize(){return this._customSource._getFileSize()}_dispose(){this._customSource._dispose(),this._fileHandle&&(this._fileHandle.close(),this._fileHandle=null,nu?.unregister(this))}},ma=class extends qe{constructor(e){if(!e||typeof e!="object")throw new TypeError("options must be an object.");if(typeof e.getSize!="function")throw new TypeError("options.getSize must be a function.");if(typeof e.read!="function")throw new TypeError("options.read must be a function.");if(e.dispose!==void 0&&typeof e.dispose!="function")throw new TypeError("options.dispose, when provided, must be a function.");if(e.handleUnhandledError!==void 0&&typeof e.handleUnhandledError!="function")throw new TypeError("options.handleUnhandledError, when provided, must be a function.");if(e.maxCacheSize!==void 0&&(!ve(e.maxCacheSize)||e.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");if(e.prefetchProfile&&!["none","fileSystem","network"].includes(e.prefetchProfile))throw new TypeError("options.prefetchProfile, when provided, must be one of 'none', 'fileSystem' or 'network'.");super();this._readers=new Set;this._options=e,this._orchestrator=new fa({maxCacheSize:e.maxCacheSize??8*2**20,maxWorkerCount:2,prefetchProfile:mu[e.prefetchProfile??"none"],runWorker:this._runWorker.bind(this),handleUnhandledError:e.handleUnhandledError})}_getFileSize(){return this._orchestrator.fileSize??void 0}_read(e,r,n,a){if(this._orchestrator.fileSize!==null)return this._orchestrator.read(e,r,n,a);let s=this._options.getSize();if(_(s))return s.then(o=>{if(!Number.isInteger(o)||o<0)throw new TypeError("options.getSize must return or resolve to a non-negative integer.");return this._orchestrator.fileSize=o,this._orchestrator.read(e,r,n,a)});if(!Number.isInteger(s)||s<0)throw new TypeError("options.getSize must return or resolve to a non-negative integer.");return this._orchestrator.fileSize=s,this._orchestrator.read(e,r,n,a)}async _runWorker(e){for(;e.currentPos{});break}if(a instanceof Uint8Array){if(a=$(a),a.length!==n-e.currentPos)throw new Error(`options.read returned a Uint8Array with unexpected length: Requested ${n-e.currentPos} bytes, but got ${a.length}.`);this._dispatchRead(e.currentPos,e.currentPos+a.length),this._orchestrator.supplyWorkerData(e,a)}else if(a instanceof ReadableStream){let s=a.getReader();this._readers.add(s);try{for(;e.currentPos{});this._readers.clear(),this._options.dispose?.()}},Op=ma,yn=class extends qe{constructor(e,r={}){if(!(e instanceof ReadableStream))throw new TypeError("stream must be a ReadableStream.");if(!r||typeof r!="object")throw new TypeError("options must be an object.");if(r.handleUnhandledError!==void 0&&typeof r.handleUnhandledError!="function")throw new TypeError("options.handleUnhandledError, when provided, must be a function.");if(r.maxCacheSize!==void 0&&(!ve(r.maxCacheSize)||r.maxCacheSize<0))throw new TypeError("options.maxCacheSize, when provided, must be a non-negative number.");super();this._reader=null;this._cache=[];this._pendingSlices=[];this._currentIndex=0;this._targetIndex=0;this._maxRequestedIndex=0;this._endIndex=null;this._pulling=!1;this._cacheMissErrorMessage="Attempted to read data from an already-evicted part of the cache. With ReadableStreamSource, you must access the data more sequentially or increase the size of its cache.";this._stream=e,this._maxCacheSize=r.maxCacheSize??32*2**20,this._handleUnhandledError=r.handleUnhandledError}_getFileSize(){return this._endIndex}_read(e,r){if(this._endIndex!==null&&r>this._endIndex)return null;this._maxRequestedIndex=Math.max(this._maxRequestedIndex,r);let n=Q(this._cache,e,d=>d.start),a=n!==-1?this._cache[n]:null;if(a&&a.start<=e&&r<=a.end)return{bytes:a.bytes,view:a.view,offset:a.start};let s=e,o=new Uint8Array(r-e);if(n!==-1)for(let d=n;d=r)break;let f=Math.max(e,m.start);f>s&&this._throwDueToCacheMiss();let p=Math.min(r,m.end);fs&&this._throwDueToCacheMiss();let{promise:c,resolve:u,reject:l}=J();return 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Uint8Array(n.end-t.start);a.set(t.bytes,0),a.set(n.bytes,n.start-t.start),this.currentCacheSize-=t.end-n.start,t.bytes=a,t.view=N(a),t.end=n.end,this.cache.splice(r,1);break}for(;this.currentCacheSize>this.options.maxCacheSize;){let r=0,n=this.cache[0];for(let a=1;athis._length)return null;let s=this._baseSource._read(this._offset+e,this._offset+r,this._offset+n,this._offset+a),o=c=>c?(c.offset-=this._offset,c):null;return _(s)?s.then(o):o(s)}_dispose(){this._ref?.free()}ref(){return this._ref??=this._baseSource.ref(),super.ref()}};var Dp=/^0[xX][0-9a-fA-F]+$/,Vp=/^data:.*;base64,/i,pa=class extends Ys{constructor(e,r,n,a){super(e.input,r,n);this.segments=[];this.nextLines=null;this.currentUpdateSegmentsPromise=null;this.streamHasEnded=!1;this.lastSegmentUpdateTime=-1/0;this.refreshInterval=5;this.rootPath=r,this.demuxer=e,this.nextLines=a}runUpdateSegments(){return this.currentUpdateSegmentsPromise??=(async()=>{try{let e=this.getRemainingWaitTimeMs();e>0&&await zr(e),this.lastSegmentUpdateTime=performance.now(),await this.updateSegments()}finally{this.currentUpdateSegmentsPromise=null}})()}getRemainingWaitTimeMs(){let e=performance.now()-this.lastSegmentUpdateTime,r=Math.max(0,1e3*this.refreshInterval-e);return r<=50?0:r}async updateSegments(){let e=this.nextLines;if(this.nextLines=null,!e){var A=[];try{let S=st(A,await this.demuxer.input._getSourceUncached({path:this.rootPath,isRoot:!1}));let I=new ei(S.source);let E=await I.requestEntireFile();g(E);e=ro(E,E.length,{ignore:$s});S.source instanceof rt&&(this.rootPath=S.source.rootPath)}catch(x){var C=x,P=!0}finally{ot(A,C,P)}}let r=this.input._formatOptions.hls?.offsetTimestampsByDateTime!==!1,n=new gn(this.rootPath,this.demuxer.hasMasterPlaylist?this.demuxer.masterPlaylistVariables:null),a=!1,s=0,o=null,c=null,u=null,l=0,d=null,m=null,f=null,p=null,b=null,h=null,y=!1,k=Z(this.segments)??null,T=S=>{let I=S.indexOf("@"),E=Number(I===-1?S:S.slice(0,I));if(!Number.isInteger(E)||E<0)throw new Error(`Invalid #EXT-X-BYTERANGE length '${S}'.`);let v=null;if(I!==-1&&(v=Number(S.slice(I+1)),!Number.isInteger(v)||v<0))throw new Error(`Invalid #EXT-X-BYTERANGE offset '${S}'.`);return{length:E,offset:v}},w=S=>{l=S,k&&(g(k.sequenceNumber!==null),k.sequenceNumber0&&h!==null&&(s=l*h),y=!0);let E=I.slice(la.length),v=E.indexOf(","),F=v===-1?E:E.slice(0,v),O=Number(F);if(!Number.isFinite(O)||O<0)throw new Error(`Invalid #EXTINF tag duration '${F}'.`);c=O}else if(I.startsWith(bn))n.define(I.slice(bn.length));else if(I.startsWith($c)){let E=new ir(I.slice($c.length),n),v=E.get("uri");if(!v)throw new Error("Invalid #EXT-X-MAP tag; missing URI attribute.");let F=E.get("byterange"),O=null;if(F!==null&&(O=T(F)),O&&O.offset===null)throw new Error("Invalid #EXT-X-MAP tag; BYTERANGE attribute must have a specified offset.");if(!k){let U={path:we(this.rootPath,v),offset:O?.offset??0,length:O?.length??null};if(u?.method==="AES-128"&&!u.iv)throw new Error("IV attribute must be set on #EXT-X-KEY tag preceding the #EXT-X-MAP tag.");m={timestamp:s,unixEpochTimestamp:o,firstSegment:null,sequenceNumber:null,location:U,duration:0,encryption:u,initSegment:null,lastProgramDateTimeSeconds:b}}c=null,p===null?f=null:p=null}else if(I.startsWith(Yc)){let E=new ir(I.slice(Yc.length),n),v=E.get("method");if(v==="NONE")u=null;else if(v==="AES-128"){let F=E.get("uri");if(!F)throw new Error("Invalid #EXT-X-KEY: AES-128 requires a URI attribute.");let O=null,D=E.get("iv");if(D){if(!Dp.test(D))throw new Error(`Unsupported IV format '${D}'.`);let K=D.slice(2);K=K.padStart(2*Ot,"0"),K=K.slice(-2*Ot),O=new Uint8Array(Ot);for(let ie=0;ie=8&&K[4]===112&&K[5]===115&&K[6]===115&&K[7]===104){let ie=N(K).getUint32(0);D=ws(K.subarray(8,Math.min(ie,K.length)))}}u={method:v,psshBox:D}}else throw new Error(`Unsupported encryption method '${v}'. If you think this method should be supported, please raise an issue.`)}else if(I.startsWith(Zc)){let E=I.slice(Zc.length),v=Number(E);if(!Number.isInteger(v)||v<0)throw new Error(`Invalid EXT-X-MEDIA-SEQUENCE value '${E}'.`);w(v)}else if(I.startsWith(Jc)){let E=T(I.slice(Jc.length));if(E.offset===null){if(f===null)throw new Error("Invalid M3U8 file; #EXT-X-BYTERANGE without offset requires a previous byte range.");E.offset=f}p=E,f=E.offset+E.length}else if(I.startsWith(eu)){if(k)continue;let E=I.slice(eu.length),v=Date.parse(E);if(!Number.isFinite(v))continue;let F=v/1e3;if(b===F)continue;if(b===null&&this.segments.length>0){let O=Z(this.segments),D=O.timestamp+O.duration,U=F-D;for(let K of this.segments)K.unixEpochTimestamp=K.timestamp+U,r&&(K.timestamp=K.unixEpochTimestamp)}b=F,o=F,r&&(s=F)}else if(I===sm)d=null;else if(I.startsWith(tu)){let E=I.slice(tu.length),v=Number(E);if(!Number.isFinite(v)||v<0)throw new Error(`Invalid EXT-X-TARGETDURATION value '${E}'.`);this.refreshInterval=v,h=v}else if(I===om){this.streamHasEnded=!0;break}else I.startsWith(ru)&&I.slice(ru.length).toLowerCase()==="vod"&&(this.streamHasEnded=!0)}if(!a)throw new Error("Invalid M3U8 file; no #EXTM3U header.")}async getFirstSegment(){return this.segments.length===0&&await this.runUpdateSegments(),this.segments[0]??null}async getSegmentAt(e,r){this.segments.length===0&&await this.runUpdateSegments();let n=!!r.skipLiveWait&&this.getRemainingWaitTimeMs()>0;for(;;){let a=Q(this.segments,e,o=>o.timestamp);if(a===-1)return null;if(a0;for(;;){if(au.segment===r);if(n)return n.age=this.nextInputCacheAge++,n.input;let a=null;(r.initSegment||r.firstSegment)&&(a=this.getInputForSegment(r.initSegment??r.firstSegment));let s={...this.input._formatOptions,isobmff:{...this.input._formatOptions.isobmff,resolveKeyId:this.input._formatOptions.isobmff?.resolveKeyId&&(u=>{if(!r.encryption||!(r.encryption.method==="SAMPLE-AES"||r.encryption.method==="SAMPLE-AES-CTR")||!r.encryption.psshBox)return this.input._formatOptions.isobmff.resolveKeyId(u);let l=u.psshBoxes,{psshBox:d}=r.encryption;return(d.keyIds===null||d.keyIds.includes(u.keyId))&&!l.some(m=>Ss(m,d))&&(l=[...l,d]),this.input._formatOptions.isobmff.resolveKeyId({...u,psshBoxes:l})})}},o=new Ri({source:new da(r.location.path,async u=>{g(u.isRoot);let l={...u,isRoot:!1},d,m=r.location.offset>0||r.location.length!==null;if(!r.encryption||r.encryption.method==="SAMPLE-AES"||r.encryption.method==="SAMPLE-AES-CTR"){if(d=await this.input._getSourceCached(l),m){let p=d.source.slice(r.location.offset,r.location.length??void 0).ref();d.free(),d=p}}else if(r.encryption.method==="AES-128"){let f=r.encryption;g(f.iv);let p=await this.input._getSourceCached(l);if(m){let k=p.source.slice(r.location.offset,r.location.length??void 0).ref();p.free(),p=k}let b=new ei(p.source),h=vd(b,async()=>{var A=[];try{let y=st(A,await this.input._getSourceCached({path:f.keyUri,isRoot:!1},fm));let k=new ei(y.source);let T=await k.requestSlice(0,Ot);if(!T)throw new Error("Invalid AES-128 key; expected at least 16 bytes of data.");let w=V(T,Ot);return{key:w,iv:f.iv}}catch(x){var C=x,P=!0}finally{ot(A,C,P)}},()=>{p.free()});d=new yn(h).ref()}else g(!1);return d}),formats:this.input._formats.filter(u=>!(u instanceof kn)),initInput:a??void 0,formatOptions:s});if(o._onFormatDetermined=u=>{if((r.encryption?.method==="SAMPLE-AES"||r.encryption?.method==="SAMPLE-AES-CTR")&&!u._isIsobmff)throw new Error("The SAMPLE-AES and SAMPLE-AES-CTR encryption methods are currently only supported for ISOBMFF files.")},this.inputCache.push({segment:r,input:o,age:this.nextInputCacheAge++}),this.inputCache.length>4){let u=Xi(this.inputCache,l=>l.age);g(u!==-1),this.inputCache.splice(u,1)}return o}async getLiveRefreshInterval(){return this.getRemainingWaitTimeMs()===0&&await this.runUpdateSegments(),this.streamHasEnded?null:this.refreshInterval}};var no=class extends Ae{constructor(e){super(e);this.metadataPromise=null;this.trackBackings=null;this.internalTracks=null;this.segmentedInputs=[];this.hasMasterPlaylist=!0;this.masterPlaylistVariables=null}readMetadata(){return this.metadataPromise??=(async()=>{g(this.input._rootSource instanceof rt);let e=await this.input._reader.requestEntireFile();g(e);let r=ro(e,e.length,{ignore:$s}),{rootPath:n}=this.input._rootSource,a=new gn(n,null),s=[],o=[];for(let d=1;d{let f=[],p=d.attributes.get("codecs"),b;if(p)b=p.split(",").map(S=>S.trim());else{let I=await this.getSegmentedInputForPath(d.fullPath).getTrackBackings(),E=await Promise.all(I.map(async v=>({track:v,codec:await v.getCodec()})));b=await Promise.all(E.filter(v=>v.codec!==null).map(v=>v.track.getDecoderConfig().then(F=>F.codec)))}let h=d.attributes.get("video"),y=d.attributes.get("audio"),k=b.some(S=>le.includes(Ze(S))),T=b.some(S=>fe.includes(Ze(S)));if(h!==null&&!k){let S=o.find(I=>{let E=I.attributes.get("group-id"),v=I.attributes.get("type");return E===h&&v.toLowerCase()==="video"});e:if(S){let I=S.attributes.get("uri");if(I===null)break e;let E=we(n,I),O=(await this.getSegmentedInputForPath(E).getTrackBackings()).find(U=>U.getType()==="video");if(!O||await O.getCodec()===null)break e;let D=await O.getDecoderConfig().then(U=>U?.codec??null);g(D!==null),b.push(D)}}if(y!==null&&!T){let S=o.find(I=>{let E=I.attributes.get("group-id"),v=I.attributes.get("type");return E===y&&v.toLowerCase()==="audio"});e:if(S){let I=S.attributes.get("uri");if(I===null)break e;let E=we(n,I),O=(await this.getSegmentedInputForPath(E).getTrackBackings()).find(U=>U.getType()==="audio");if(!O||await O.getCodec()===null)break e;let D=await O.getDecoderConfig().then(U=>U?.codec??null);g(D!==null),b.push(D)}}b=[...new Set(b)];let w=null,A=null,x=d.attributes.getAsNumber("bandwidth");g(x!==null);let C=d.attributes.getAsNumber("average-bandwidth"),P=d.attributes.get("name");for(let S of b){let I=Ze(S);if(I!==null){if(le.includes(I)){if(w!==null)throw new Error("Unsupported M3U8 file; multiple video codecs found in the CODECS attribute of a variant stream.");w=S;let E=d.attributes.get("video");if(E===null){let v=d.attributes.get("resolution"),F=null,O=null;if(v){let D=v.match(/^(\d+)x(\d+)$/);D&&(F=Number(D[1]),O=Number(D[2]))}f.push({id:-1,demuxer:this,backingTrack:null,default:!0,autoselect:!0,languageCode:se,lineNumber:d.lineNumber,fullPath:d.fullPath,fullCodecString:w,pairingMask:1n<0?F:null}})}else for(let v of o){let F=v.attributes.get("group-id"),O=v.attributes.get("type");if(F!==E||O.toLowerCase()!=="audio")continue;let D=v.attributes.get("channels")??d.attributes.get("channels"),U=D!==null?Number(D.split("/")[0]):null;f.push({id:-1,demuxer:this,backingTrack:null,default:io(v.attributes),autoselect:io(v.attributes)||pm(v.attributes),languageCode:hm(v.attributes.get("language")),lineNumber:v.lineNumber,fullPath:v.fullPath??d.fullPath,fullCodecString:A,pairingMask:1n<0?U:null}})}}}}return f})),u=[],l=d=>{let m=u.find(f=>f.fullPath===d.fullPath&&f.info.type===d.info.type);m?(m.pairingMask|=d.pairingMask,m.default||=d.default,m.autoselect||=d.autoselect,m.lineNumber=Math.min(m.lineNumber,d.lineNumber),d.peakBitrate!==null&&(m.peakBitrate=Math.max(m.peakBitrate??-1/0,d.peakBitrate)),d.averageBitrate!==null&&(m.averageBitrate=Math.max(m.averageBitrate??-1/0,d.averageBitrate)),m.languageCode===se&&(m.languageCode=d.languageCode)):(d.id=u.length+1,u.push(d))};for(let d of c)for(let m of d)l(m);u.sort((d,m)=>d.lineNumber-m.lineNumber),this.trackBackings=[];for(let d of u)d.info.type==="video"?this.trackBackings.push(new so(d)):this.trackBackings.push(new oo(d));this.internalTracks=u})()}async getTrackBackings(){return await this.readMetadata(),g(this.trackBackings),this.trackBackings}getSegmentedInputForPath(e){let r=this.segmentedInputs.find(a=>a.path===e);if(r)return r;let n=null;return this.internalTracks&&(n=this.internalTracks.filter(s=>s.fullPath===e).map(s=>({id:s.id,type:s.info.type}))),r=new pa(this,e,n,null),this.segmentedInputs.push(r),r}async getMetadataTags(){return{}}async getMimeType(){return nr}dispose(){if(this.segmentedInputs){for(let e of this.segmentedInputs)e.dispose();this.segmentedInputs.length=0}}},ao=class{constructor(t){this.internalTrack=t;this.hydrationPromise=null}hydrate(){return this.hydrationPromise??=(async()=>{let t=this.internalTrack.demuxer.getSegmentedInputForPath(this.internalTrack.fullPath),e=null,n=(await t.getTrackBackings()).filter(a=>a.getType()===this.getType());if(n.length===1)e=n[0];else if(this instanceof so){for(let a of n)if(await a.getCodec()===this.getCodec()){e=a;break}}else{g(this instanceof oo);for(let a of n)if(await a.getCodec()===this.getCodec()){e=a;break}}if(!e)throw new Error("Could not find matching track in underlying media data.");this.internalTrack.backingTrack=e})()}delegate(t){return this.internalTrack.backingTrack?t():this.hydrate().then(t)}getCodec(){throw new Error("Not implemented on base class.")}getDisposition(){return{..._e,default:this.internalTrack.autoselect,primary:this.internalTrack.default}}getId(){return this.internalTrack.id}getPairingMask(){return this.internalTrack.pairingMask}getInternalCodecId(){return null}getLanguageCode(){return this.internalTrack.languageCode}getName(){return this.internalTrack.name}getNumber(){g(this.internalTrack.demuxer.internalTracks);let t=this.internalTrack.info.type,e=0;for(let r of this.internalTrack.demuxer.internalTracks)if(r.info.type===t&&e++,r===this.internalTrack)break;return e}getTimeResolution(){return this.delegate(()=>this.internalTrack.backingTrack.getTimeResolution())}isRelativeToUnixEpoch(){return this.delegate(()=>this.internalTrack.backingTrack.isRelativeToUnixEpoch())}getUnixTimeForTimestamp(t){return this.delegate(()=>this.internalTrack.backingTrack.getUnixTimeForTimestamp(t))}getBitrate(){return this.internalTrack.peakBitrate}getAverageBitrate(){return this.internalTrack.averageBitrate}async getDurationFromMetadata(t){return await this.hydrate(),this.internalTrack.backingTrack.getDurationFromMetadata(t)}async getLiveRefreshInterval(){return await this.hydrate(),this.internalTrack.backingTrack.getLiveRefreshInterval()}getHasOnlyKeyPackets(){return this.internalTrack.hasOnlyKeyPackets||null}async getFirstPacket(t){return await this.hydrate(),this.internalTrack.backingTrack.getFirstPacket(t)}async getPacket(t,e){return await this.hydrate(),this.internalTrack.backingTrack.getPacket(t,e)}async getKeyPacket(t,e){return await this.hydrate(),this.internalTrack.backingTrack.getKeyPacket(t,e)}async getNextPacket(t,e){return await this.hydrate(),this.internalTrack.backingTrack.getNextPacket(t,e)}async getNextKeyPacket(t,e){return await this.hydrate(),this.internalTrack.backingTrack.getNextKeyPacket(t,e)}},so=class extends ao{constructor(t){super(t)}get backingVideoTrack(){return this.internalTrack.backingTrack}getType(){return"video"}getCodec(){return Ze(this.internalTrack.fullCodecString)}getCodedWidth(){return this.delegate(()=>this.backingVideoTrack.getCodedWidth())}getCodedHeight(){return this.delegate(()=>this.backingVideoTrack.getCodedHeight())}getSquarePixelWidth(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelWidth())}getSquarePixelHeight(){return this.delegate(()=>this.backingVideoTrack.getSquarePixelHeight())}getMetadataDisplayWidth(){return this.backingVideoTrack?null:this.internalTrack.info.width}getMetadataDisplayHeight(){return this.backingVideoTrack?null:this.internalTrack.info.height}getTransformationMatrix(){return this.delegate(()=>this.backingVideoTrack.getTransformationMatrix())}async getColorSpace(){return await this.hydrate(),this.backingVideoTrack.getColorSpace()}async canBeTransparent(){return await this.hydrate(),this.backingVideoTrack.canBeTransparent()}getMetadataCodecParameterString(){return this.backingVideoTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingVideoTrack.getDecoderConfig()}},oo=class extends ao{constructor(t){super(t)}get backingAudioTrack(){return this.internalTrack.backingTrack}getType(){return"audio"}getCodec(){return Ze(this.internalTrack.fullCodecString)}getNumberOfChannels(){return this.internalTrack.info.numberOfChannels!==null?this.internalTrack.info.numberOfChannels:this.delegate(()=>this.backingAudioTrack.getNumberOfChannels())}getSampleRate(){return this.delegate(()=>this.backingAudioTrack.getSampleRate())}getMetadataCodecParameterString(){return this.backingAudioTrack?null:this.internalTrack.fullCodecString}async getDecoderConfig(){return await this.hydrate(),this.backingAudioTrack.getDecoderConfig()}},io=i=>{let t=i.get("default");if(t===null)return!1;let e=t.toUpperCase();if(e==="YES")return!0;if(e==="NO")return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA DEFAULT attribute must be YES or NO, got "${t}".`)},pm=i=>{let t=i.get("autoselect");if(t===null)return!1;let e=t.toUpperCase();if(e==="YES")return!0;if(e==="NO")return!1;throw new Error(`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${t}".`)},hm=i=>{if(i===null)return se;let t=i.split("-")[0];return t||se};var it=class{constructor(){this._isIsobmff=!1}},ha=class extends it{constructor(){super(...arguments);this._isIsobmff=!0}async _getMajorBrand(e){let r=e._reader.requestSlice(0,12);if(_(r)&&(r=await r),!r)return null;r.skip(4);let n=oe(r,4);return n!=="ftyp"&&n!=="styp"?null:oe(r,4)}_createDemuxer(e){return new Cs(e)}},co=class extends ha{async _canReadInput(t){let e=await this._getMajorBrand(t);if(e!==null)return e!=="qt ";let r=0;for(let n=0;n<10;n++){let a=t._reader.requestSlice(r,8);if(_(a)&&(a=await a),!a)return!1;let s=M(a),o=8;if(s===1){let u=t._reader.requestSlice(r+8,8);if(_(u)&&(u=await u),!u)return!1;s=We(u),o=16}if(s8||G(r,n)!==440786851)return!1;let s=Mc(r);if(typeof s!="number")return!1;let o=t._reader.requestSlice(r.filePos,s);if(_(o)&&(o=await o),!o)return!1;let c=r.filePos;for(;o.filePos<=c+s-je;){let u=wt(o);if(!u)break;let{id:l,size:d}=u,m=o.filePos;if(d===void 0)return!1;switch(l){case 17030:if(G(o,d)!==1)return!1;break;case 17143:if(G(o,d)!==1)return!1;break;case 17026:if(Zr(o,d)!==e)return!1;break;case 17031:if(G(o,d)>4)return!1;break}o.filePos=m+d}return!0}_canReadInput(t){return this.isSupportedEBMLOfDocType(t,"matroska")}_createDemuxer(t){return new Bs(t)}get name(){return"Matroska"}get mimeType(){return"video/x-matroska"}},lo=class extends ga{_canReadInput(t){return this.isSupportedEBMLOfDocType(t,"webm")}get name(){return"WebM"}get mimeType(){return"video/webm"}},mo=class extends it{async _canReadInput(t){let e=0;for(;;){let d=t._reader.requestSlice(e,Ue);if(_(d)&&(d=await d),!d)break;let m=Je(d);if(!m)break;e=d.filePos+m.size}let r=await na(t._reader,e,e+4096);if(!r)return!1;let n=r.header,a=Gr(n.mpegVersionId,n.channel),s=t._reader.requestSlice(r.startPos+a,4);if(_(s)&&(s=await s),!s)return!1;let o=M(s);if(o===Qr||o===en)return!0;e=r.startPos+r.header.totalSize;let u=await na(t._reader,e,e+4);if(!u)return!1;let l=u.header;return!(n.channel!==l.channel||n.sampleRate!==l.sampleRate)}_createDemuxer(t){return new Ds(t)}get name(){return"MP3"}get mimeType(){return"audio/mpeg"}},fo=class extends it{async _canReadInput(t){let e=t._reader.requestSlice(0,12);if(_(e)&&(e=await e),!e)return!1;let r=oe(e,4);return r!=="RIFF"&&r!=="RIFX"&&r!=="RF64"?!1:(e.skip(4),oe(e,4)==="WAVE")}_createDemuxer(t){return new Ls(t)}get name(){return"WAVE"}get mimeType(){return"audio/wav"}},po=class extends it{async _canReadInput(t){let e=t._reader.requestSlice(0,4);return _(e)&&(e=await e),e?oe(e,4)==="OggS":!1}_createDemuxer(t){return new Ns(t)}get name(){return"Ogg"}get mimeType(){return"application/ogg"}},ho=class extends it{async _canReadInput(t){let e=0;for(;;){let n=t._reader.requestSlice(e,Ue);if(_(n)&&(n=await n),!n)break;let a=Je(n);if(!a)break;e=n.filePos+a.size}let r=t._reader.requestSlice(e,4);return _(r)&&(r=await r),r?oe(r,4)==="fLaC":!1}get name(){return"FLAC"}get mimeType(){return"audio/flac"}_createDemuxer(t){return new Qs(t)}},go=class extends it{async _canReadInput(t){let e=0;for(;;){let s=t._reader.requestSlice(e,Ue);if(_(s)&&(s=await s),!s)break;let o=Je(s);if(!o)break;e=s.filePos+o.size}let r=t._reader.requestSliceRange(e,Er,mt);if(_(r)&&(r=await r),!r)return!1;let n=et(r);if(!n||(e+=n.frameLength,r=t._reader.requestSliceRange(e,Er,mt),_(r)&&(r=await r),!r))return!1;let a=et(r);return a?n.objectType===a.objectType&&n.samplingFrequencyIndex===a.samplingFrequencyIndex&&n.channelConfiguration===a.channelConfiguration:!1}_createDemuxer(t){return new Ws(t)}get name(){return"ADTS"}get mimeType(){return"audio/aac"}},bo=class extends it{async _canReadInput(t){let e=205,r=t._reader.requestSlice(0,e);if(_(r)&&(r=await r),!r)return!1;let n=V(r,e);return n[0]===71&&n[188]===71||n[0]===71&&n[204]===71?!0:n[4]===71&&n[196]===71}_createDemuxer(t){return new js(t)}get name(){return"MPEG Transport Stream"}get mimeType(){return"video/MP2T"}},kn=class extends it{async _canReadInput(t){let e=t._reader.requestSlice(0,7);if(_(e)&&(e=await e),!e||!(oe(e,7)==="#EXTM3U"))return!1;if(!(t._rootSource instanceof rt))throw new TypeError("HLS inputs require `InputOptions.source` to be a PathedSource or a ref to one.");return t._rootSource._usedForHls=!0,!0}_createDemuxer(t){return new no(t)}get name(){return"HTTP Live Streaming (HLS)"}get mimeType(){return nr}},fu=new co,pu=new uo,gm=new ga,bm=new lo,hu=new mo,ym=new fo,km=new po,gu=new go,Tm=new ho,bu=new bo,yu=new kn,Up=[yu,fu,pu,gm,bm,ym,km,Tm,hu,gu,bu],zp=[yu,fu,pu,hu,gu,bu],wm=(i,t)=>{if(!i||typeof i!="object")throw new TypeError(`${t}, when provided, must be an object.`);if(i.isobmff!==void 0){if(!i.isobmff||typeof i.isobmff!="object")throw new TypeError(`${t}.isobmff, when provided, must be an object.`);if(i.isobmff.resolveKeyId!==void 0&&typeof i.isobmff.resolveKeyId!="function")throw new TypeError(`${t}.isobmff.resolveKeyId, when provided, must be a function.`)}if(i.hls!==void 0){if(!i.hls||typeof i.hls!="object")throw new TypeError(`${t}.hls, when provided, must be an object.`);if(i.hls.offsetTimestampsByDateTime!==void 0&&typeof i.hls.offsetTimestampsByDateTime!="boolean")throw new TypeError(`${t}.hls.offsetTimestampsByDateTime, when provided, must be a boolean.`)}};var yo=new Map,ko=new Map,Np=(i,t)=>{if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.codec!==void 0&&typeof t.codec!="string")throw new TypeError("options.codec, when provided, must be a string.");if(t.codec!==void 0&&Ze(t.codec)!==i)throw new TypeError(`options.codec, when provided, must match the specified codec (${i}).`);if(t.codedWidth!==void 0&&(!Number.isInteger(t.codedWidth)||t.codedWidth<=0))throw new TypeError("options.codedWidth, when provided, must be a positive integer.");if(t.codedHeight!==void 0&&(!Number.isInteger(t.codedHeight)||t.codedHeight<=0))throw new TypeError("options.codedHeight, when provided, must be a positive integer.");if(t.displayAspectWidth!==void 0&&(!Number.isInteger(t.displayAspectWidth)||t.displayAspectWidth<=0))throw new TypeError("options.displayAspectWidth, when provided, must be a positive integer.");if(t.displayAspectHeight!==void 0&&(!Number.isInteger(t.displayAspectHeight)||t.displayAspectHeight<=0))throw new TypeError("options.displayAspectHeight, when provided, must be a positive integer.");if(t.description!==void 0&&!fr(t.description))throw new TypeError("options.description, when provided, must be a buffer source.");if(t.hardwareAcceleration!==void 0&&!["no-preference","prefer-hardware","prefer-software"].includes(t.hardwareAcceleration))throw new TypeError("options.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(t.optimizeForLatency!==void 0&&typeof t.optimizeForLatency!="boolean")throw new TypeError("options.optimizeForLatency, when provided, must be a boolean.")},Lp=(i,t)=>{if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.codec!==void 0&&typeof t.codec!="string")throw new TypeError("options.codec, when provided, must be a string.");if(t.codec!==void 0&&Ze(t.codec)!==i)throw new TypeError(`options.codec, when provided, must match the specified codec (${i}).`);if(t.numberOfChannels!==void 0&&(!Number.isInteger(t.numberOfChannels)||t.numberOfChannels<=0))throw new TypeError("options.numberOfChannels, when provided, must be a positive integer.");if(t.sampleRate!==void 0&&(!Number.isInteger(t.sampleRate)||t.sampleRate<=0))throw new TypeError("options.sampleRate, when provided, must be a positive integer.");if(t.description!==void 0&&!fr(t.description))throw new TypeError("options.description, when provided, must be a buffer source.")},Wp=i=>le.includes(i)?ku(i):fe.includes(i)?Tu(i):!1,ku=async(i,t={})=>{if(!le.includes(i))return!1;Np(i,t);let e={...t,codedWidth:t.codedWidth??1280,codedHeight:t.codedHeight??720,codec:t.codec??ms(i,1280,720,1e6,!1)};e.description??=kd(e);let r=JSON.stringify(e),n=yo.get(r);if(n)return n;let a=(async()=>ti.some(o=>o.supports(i,e))?!0:typeof VideoDecoder>"u"?!1:(await VideoDecoder.isConfigSupported(e)).supported===!0)();return yo.set(r,a),a},Tu=async(i,t={})=>{if(!fe.includes(i))return!1;Lp(i,t);let e={...t,numberOfChannels:t.numberOfChannels??2,sampleRate:t.sampleRate??48e3,codec:t.codec??hs(i,2,48e3)};if(e.description===void 0){let s=Td(e);if(s===!1)return!1;e.description=s}let r=JSON.stringify(e),n=ko.get(r);if(n)return n;let a=(async()=>ri.some(o=>o.supports(i,e))||ae.includes(i)?!0:typeof AudioDecoder>"u"?!1:(await AudioDecoder.isConfigSupported(e)).supported===!0)();return ko.set(r,a),a},Hp=async()=>{let[i,t]=await Promise.all([Sm(),Am()]);return[...i,...t]},Sm=async(i=le,t)=>{let e=await Promise.all(i.map(r=>ku(r,t)));return i.filter((r,n)=>e[n])},Am=async(i=fe,t)=>{let e=await Promise.all(i.map(r=>Tu(r,t)));return i.filter((r,n)=>e[n])};ji();var xm=-1/0,Cm=-1/0,Ta=null;typeof FinalizationRegistry<"u"&&(Ta=new FinalizationRegistry(i=>{let t=performance.now();i.type==="video"?(t-xm>=1e3&&(z._error("A VideoSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your VideoSamples as soon as you're done using them."),xm=t),typeof VideoFrame<"u"&&i.data instanceof VideoFrame&&i.data.close()):(t-Cm>=1e3&&(z._error("An AudioSample was garbage collected without first being closed. For proper resource management, make sure to call close() on all your AudioSamples as soon as you're done using them."),Cm=t),typeof AudioData<"u"&&i.data instanceof AudioData&&i.data.close())}));var ar=class{constructor(){this._referenceCount=0;this._lastAllocationBuffer=null}},wo=["I420","I420P10","I420P12","I420A","I420AP10","I420AP12","I422","I422P10","I422P12","I422A","I422AP10","I422AP12","I444","I444P10","I444P12","I444A","I444AP10","I444AP12","NV12","RGBA","RGBX","BGRA","BGRX"],qp=new Set(wo),Xe=class i{constructor(t,e){this._closed=!1;if(t instanceof ArrayBuffer||typeof SharedArrayBuffer<"u"&&t instanceof SharedArrayBuffer||ArrayBuffer.isView(t)){if(!e||typeof e!="object")throw new TypeError("init must be an object.");if(e.format===void 0||!qp.has(e.format))throw new TypeError("init.format must be one of: "+wo.join(", "));if(!Number.isInteger(e.codedWidth)||e.codedWidth<=0)throw new TypeError("init.codedWidth must be a positive integer.");if(!Number.isInteger(e.codedHeight)||e.codedHeight<=0)throw new TypeError("init.codedHeight must be a positive integer.");if(e.rotation!==void 0&&![0,90,180,270].includes(e.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(e.flip!==void 0&&typeof e.flip!="boolean")throw new TypeError("init.flip, when provided, must be a boolean.");if(!Number.isFinite(e.timestamp))throw new TypeError("init.timestamp must be a number.");if(e.duration!==void 0&&(!Number.isFinite(e.duration)||e.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(e.layout!==void 0){if(!Array.isArray(e.layout))throw new TypeError("init.layout, when provided, must be an array.");for(let a of e.layout){if(!a||typeof a!="object"||Array.isArray(a))throw new TypeError("Each entry in init.layout must be an object.");if(!Number.isInteger(a.offset)||a.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(a.stride)||a.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(e.visibleRect!==void 0&&Qa(e.visibleRect,"init.visibleRect"),e.displayWidth!==void 0&&(!Number.isInteger(e.displayWidth)||e.displayWidth<=0))throw new TypeError("init.displayWidth, when provided, must be a positive integer.");if(e.displayHeight!==void 0&&(!Number.isInteger(e.displayHeight)||e.displayHeight<=0))throw new TypeError("init.displayHeight, when provided, must be a positive integer.");if(e.displayWidth!==void 0!=(e.displayHeight!==void 0))throw new TypeError("init.displayWidth and init.displayHeight must be either both provided or both omitted.");this.format=e.format,this.rotation=e.rotation??0,this.flip=e.flip??!1,this.timestamp=e.timestamp,this.duration=e.duration??0;let r=e.layout??Gp(e.format,e.codedWidth,e.codedHeight),n=e.colorSpace??null;n===null&&(this.format==="RGBA"||this.format==="RGBX"||this.format==="BGRA"||this.format==="BGRX"?n={primaries:"bt709",transfer:"iec61966-2-1",matrix:"rgb",fullRange:!0}:n={primaries:"bt709",transfer:"bt709",matrix:"bt709",fullRange:!1}),this.visibleRect={left:e.visibleRect?.left??0,top:e.visibleRect?.top??0,width:e.visibleRect?.width??e.codedWidth,height:e.visibleRect?.height??e.codedHeight},e.displayWidth!==void 0?(this.squarePixelWidth=this.rotation%180===0?e.displayWidth:e.displayHeight,this.squarePixelHeight=this.rotation%180===0?e.displayHeight:e.displayWidth):(this.squarePixelWidth=this.visibleRect.width,this.squarePixelHeight=this.visibleRect.height),this._data=e._doNotCopy?$(t):$(t).slice(),this._layout=r,this.colorSpace=new Tn(n)}else if(typeof VideoFrame<"u"&&t instanceof VideoFrame){if(e?.rotation!==void 0&&![0,90,180,270].includes(e.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(e?.flip!==void 0&&typeof e.flip!="boolean")throw new TypeError("init.flip, when provided, must be a boolean.");if(e?.timestamp!==void 0&&!Number.isFinite(e?.timestamp))throw new TypeError("init.timestamp, when provided, must be a number.");if(e?.duration!==void 0&&(!Number.isFinite(e.duration)||e.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");e?.visibleRect!==void 0&&Qa(e.visibleRect,"init.visibleRect"),this._data=t,this._layout=null,this.format=t.format,this.visibleRect={left:t.visibleRect?.x??0,top:t.visibleRect?.y??0,width:t.visibleRect?.width??t.codedWidth,height:t.visibleRect?.height??t.codedHeight},this.rotation=e?.rotation??0,this.flip=e?.flip??!1,this.squarePixelWidth=t.displayWidth,this.squarePixelHeight=t.displayHeight,this.timestamp=e?.timestamp??t.timestamp/1e6,this.duration=e?.duration??(t.duration??0)/1e6,this.colorSpace=new Tn(t.colorSpace)}else if(typeof HTMLImageElement<"u"&&t instanceof HTMLImageElement||typeof SVGImageElement<"u"&&t instanceof SVGImageElement||typeof ImageBitmap<"u"&&t instanceof ImageBitmap||typeof HTMLVideoElement<"u"&&t instanceof HTMLVideoElement||typeof HTMLCanvasElement<"u"&&t instanceof HTMLCanvasElement||typeof OffscreenCanvas<"u"&&t instanceof OffscreenCanvas){if(!e||typeof e!="object")throw new TypeError("init must be an object.");if(e.rotation!==void 0&&![0,90,180,270].includes(e.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(e.flip!==void 0&&typeof e.flip!="boolean")throw new TypeError("init.flip, when provided, must be a boolean.");if(!Number.isFinite(e.timestamp))throw new TypeError("init.timestamp must be a number.");if(e.duration!==void 0&&(!Number.isFinite(e.duration)||e.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(e.visibleRect!==void 0&&Qa(e.visibleRect,"init.visibleRect"),typeof VideoFrame<"u")return new i(new VideoFrame(t,{timestamp:Math.trunc(e.timestamp*Kt),duration:Math.trunc((e.duration??0)*Kt)||void 0,visibleRect:e.visibleRect&&{x:e.visibleRect.left,y:e.visibleRect.top,width:e.visibleRect.width,height:e.visibleRect.height}}),e);let r=0,n=0;if("naturalWidth"in t?(r=t.naturalWidth,n=t.naturalHeight):"videoWidth"in t?(r=t.videoWidth,n=t.videoHeight):"width"in t&&(r=Number(t.width),n=Number(t.height)),!r||!n)throw new TypeError("Could not determine dimensions.");let a=e.visibleRect??{left:0,top:0,width:r,height:n},s=new OffscreenCanvas(a.width,a.height),o=s.getContext("2d",{alpha:yi(),willReadFrequently:!0});if(!o)throw new Error("OffscreenCanvas must have support for the '2d' context in order to create a VideoSample from this data.");o.drawImage(t,-a.left,-a.top),this._data=s,this._layout=null,this.format="RGBX",this.visibleRect={left:0,top:0,width:a.width,height:a.height},this.squarePixelWidth=a.width,this.squarePixelHeight=a.height,this.rotation=e.rotation??0,this.flip=e.flip??!1,this.timestamp=e.timestamp,this.duration=e.duration??0,this.colorSpace=new Tn({matrix:"rgb",primaries:"bt709",transfer:"iec61966-2-1",fullRange:!0})}else if(t instanceof ar){if(!e||typeof e!="object")throw new TypeError("init must be an object.");if(e.rotation!==void 0&&![0,90,180,270].includes(e.rotation))throw new TypeError("init.rotation, when provided, must be 0, 90, 180, or 270.");if(e.flip!==void 0&&typeof e.flip!="boolean")throw new TypeError("init.flip, when provided, must be a boolean.");if(!Number.isFinite(e.timestamp))throw new TypeError("init.timestamp must be a number.");if(e.duration!==void 0&&(!Number.isFinite(e.duration)||e.duration<0))throw new TypeError("init.duration, when provided, must be a non-negative number.");if(this._data=t,t._referenceCount++,this.format=t.getFormat(),this.format!==null&&!wo.includes(this.format))throw new TypeError("getFormat() must return a VideoSamplePixelFormat or null.");if(this.visibleRect={left:0,top:0,width:t.getCodedWidth(),height:t.getCodedHeight()},!Number.isInteger(this.visibleRect.width)||this.visibleRect.width<=0)throw new TypeError("getCodedWidth() must return a positive integer.");if(!Number.isInteger(this.visibleRect.height)||this.visibleRect.height<=0)throw new TypeError("getCodedHeight() must return a positive integer.");if(this.squarePixelWidth=t.getSquarePixelWidth(),!Number.isInteger(this.squarePixelWidth)||this.squarePixelWidth<=0)throw new TypeError("getSquarePixelWidth() must return a positive integer.");if(this.squarePixelHeight=t.getSquarePixelHeight(),!Number.isInteger(this.squarePixelHeight)||this.squarePixelHeight<=0)throw new TypeError("getSquarePixelHeight() must return a positive integer.");this.rotation=e.rotation??0,this.flip=e.flip??!1,this.timestamp=e.timestamp,this.duration=e.duration??0,this.colorSpace=t.getColorSpace()}else throw new TypeError("Invalid data type: Must be a BufferSource, CanvasImageSource, or VideoSampleResource.");this.encodeOptions=e?.encodeOptions??{},this.pixelAspectRatio=Gt({num:this.squarePixelWidth*this.codedHeight,den:this.squarePixelHeight*this.codedWidth}),Ta?.register(this,{type:"video",data:this._data},this)}get codedWidth(){return this.visibleRect.width}get codedHeight(){return this.visibleRect.height}get displayWidth(){return this.rotation%180===0?this.squarePixelWidth:this.squarePixelHeight}get displayHeight(){return this.rotation%180===0?this.squarePixelHeight:this.squarePixelWidth}get microsecondTimestamp(){return Math.trunc(Kt*this.timestamp)}get microsecondDuration(){return Math.trunc(Kt*this.duration)}get hasAlpha(){return this.format&&this.format.includes("A")}clone(){if(this._closed)throw new Error("VideoSample is closed.");return g(this._data!==null),this._data instanceof ar?new i(this._data,{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,flip:this.flip,encodeOptions:this.encodeOptions}):ya(this._data)?new i(this._data.clone(),{timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,flip:this.flip,encodeOptions:this.encodeOptions}):this._data instanceof Uint8Array?(g(this._layout),new i(this._data,{format:this.format,layout:this._layout,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,flip:this.flip,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions,_doNotCopy:!0})):new i(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.timestamp,duration:this.duration,colorSpace:this.colorSpace,rotation:this.rotation,flip:this.flip,visibleRect:this.visibleRect,displayWidth:this.displayWidth,displayHeight:this.displayHeight,encodeOptions:this.encodeOptions})}close(){this._closed||(Ta?.unregister(this),this._data instanceof ar?(this._data._referenceCount--,this._data._referenceCount===0&&this._data.close()):ya(this._data)?this._data.close():this._data=null,this._closed=!0)}allocationSize(t={}){if(Em(t),this._closed)throw new Error("VideoSample is closed.");if((t.format??this.format)==null)throw new Error("Cannot get allocation size when format is null.");return ya(this._data)?this._data.allocationSize(t):vm(this,t).allocationSize}async copyTo(t,e={}){if(!fr(t))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(Em(e),this._closed)throw new Error("VideoSample is closed.");if((e.format??this.format)==null)throw new Error("Cannot copy video sample data when format is null.");if(g(this._data!==null),ya(this._data))return this._data.copyTo(t,e);if(e.format&&!["RGBA","RGBX","BGRA","BGRX"].includes(this.format)&&["RGBA","RGBX","BGRA","BGRX"].includes(e.format))if(this._data instanceof ar){var u=[];try{let f=st(u,await this._data.toRgbSample({timestamp:this.timestamp,duration:this.duration,rotation:this.rotation,flip:this.flip},e.colorSpace??"srgb"));if(!(f instanceof i))throw new TypeError("toRgbSample() must return a VideoSample.");if(!["RGBA","RGBX","BGRA","BGRX"].includes(f.format))throw new Error(`Sample returned by toRgbSample was expected to have an RGB format, got '${f.format}' instead.`);return await f.copyTo(t,e)}catch(l){var d=l,m=!0}finally{ot(u,d,m)}}else{if(typeof VideoFrame>"u")throw new Error("For this sample, converting from a non-RGB to an RGB format requires VideoFrame to be defined.");let f=this.toVideoFrame(),p=await f.copyTo(t,e);return f.close(),p}let r=vm(this,e);g(this.format);let n=$(t);if(n.byteLength!(p.data instanceof Uint8Array)||!Number.isInteger(p.stride)||p.stride<0))throw new TypeError('getDataPlanes() must return an array of objects with a Uint8Array "data" property and a non-negative integer "stride" property.');s=f}else if(this._data instanceof Uint8Array)g(this._layout),g(this._layout.length===a.length),s=this._layout.map((f,p)=>{let b=Math.ceil(this.codedHeight/a[p].heightDivisor);return{data:this._data.subarray(f.offset,f.offset+f.stride*b),stride:f.stride}});else{let p=this._data.getContext("2d");g(p);let b=p.getImageData(0,0,this.codedWidth,this.codedHeight);s=[{data:$(b.data),stride:4*this.codedWidth}]}let o=[],c=a.length;for(let f=0;fh.byteLength)throw new Error("Source buffer OOB read.");if(k+T>n.byteLength)throw new Error("Destination buffer OOB write.");let x=h.subarray(y,y+T);n.set(x,k),y+=b,k+=p.destinationStride}o.push(w)}if(e.format!==void 0){let f=this.format.startsWith("RGB")!==e.format.startsWith("RGB"),p=this.format.includes("X")&&e.format.includes("A");if(f||p)for(let b=0;bs+o.data.byteLength,0),r=new Uint8Array(e),n=0,a=[];for(let s of t)r.set(s.data,n),a.push(n),n+=s.data.byteLength;return new VideoFrame(r,{format:this.format,layout:t.map((s,o)=>({offset:a[o],stride:s.stride})),codedWidth:this.codedWidth,codedHeight:this.codedHeight,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})}else return ya(this._data)?new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0}):this._data instanceof Uint8Array?(g(this._layout),new VideoFrame(this._data,{format:this.format,codedWidth:this.codedWidth,codedHeight:this.codedHeight,layout:this._layout,timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0,colorSpace:this.colorSpace,visibleRect:this.visibleRect,displayWidth:this.squarePixelWidth,displayHeight:this.squarePixelHeight})):new VideoFrame(this._data,{timestamp:this.microsecondTimestamp,duration:this.microsecondDuration||void 0})}draw(t,e,r,n,a,s,o,c,u){let l=0,d=0,m=this.displayWidth,f=this.displayHeight,p=0,b=0,h=this.displayWidth,y=this.displayHeight;if(s!==void 0?(l=e,d=r,m=n,f=a,p=s,b=o,c!==void 0?(h=c,y=u):(h=m,y=f)):(p=e,b=r,n!==void 0&&(h=n,y=a)),!(typeof CanvasRenderingContext2D<"u"&&t instanceof CanvasRenderingContext2D||typeof OffscreenCanvasRenderingContext2D<"u"&&t instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!Number.isFinite(l))throw new TypeError("sx must be a number.");if(!Number.isFinite(d))throw new TypeError("sy must be a number.");if(!Number.isFinite(m)||m<0)throw new TypeError("sWidth must be a non-negative number.");if(!Number.isFinite(f)||f<0)throw new TypeError("sHeight must be a non-negative number.");if(!Number.isFinite(p))throw new TypeError("dx must be a number.");if(!Number.isFinite(b))throw new TypeError("dy must be a number.");if(!Number.isFinite(h)||h<0)throw new TypeError("dWidth must be a non-negative number.");if(!Number.isFinite(y)||y<0)throw new TypeError("dHeight must be a non-negative number.");if(this._closed)throw new Error("VideoSample is closed.");({sx:l,sy:d,sWidth:m,sHeight:f}=this._unmapSourceRegion(l,d,m,f,this.rotation,this.flip));let k=this.toCanvasImageSource();t.save();let T=p+h/2,w=b+y/2;t.translate(T,w),this.flip&&t.scale(-1,1),t.rotate(this.rotation*Math.PI/180);let A=this.rotation%180===0?1:h/y;t.scale(1/A,A),t.drawImage(k,l,d,m,f,-h/2,-y/2,h,y),t.restore()}drawWithFit(t,e){if(!(typeof CanvasRenderingContext2D<"u"&&t instanceof CanvasRenderingContext2D||typeof OffscreenCanvasRenderingContext2D<"u"&&t instanceof OffscreenCanvasRenderingContext2D))throw new TypeError("context must be a CanvasRenderingContext2D or OffscreenCanvasRenderingContext2D.");if(!e||typeof e!="object")throw new TypeError("options must be an object.");if(!["fill","contain","cover"].includes(e.fit))throw new TypeError("options.fit must be 'fill', 'contain', or 'cover'.");if(e.rotation!==void 0&&![0,90,180,270].includes(e.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180, or 270.");if(e.flip!==void 0&&typeof e.flip!="boolean")throw new TypeError("options.flip, when provided, must be a boolean.");e.crop!==void 0&&ni(e.crop,"options.");let r=t.canvas.width,n=t.canvas.height,a=e.rotation??this.rotation,s=e.flip??this.flip,[o,c]=a%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],u=e.crop;u&&(u=wn(u,o,c));let l,d,m,f,{sx:p,sy:b,sWidth:h,sHeight:y}=this._unmapSourceRegion(e.crop?.left??0,e.crop?.top??0,e.crop?.width??o,e.crop?.height??c,a,s);if(e.fit==="fill")l=0,d=0,m=r,f=n;else{let[T,w]=e.crop?[e.crop.width,e.crop.height]:[o,c],A=e.fit==="contain"?Math.min(r/T,n/w):Math.max(r/T,n/w);m=T*A,f=w*A,l=(r-m)/2,d=(n-f)/2}t.save();let k=a%180===0?1:m/f;t.translate(r/2,n/2),s&&t.scale(-1,1),t.rotate(a*Math.PI/180),t.scale(1/k,k),t.translate(-r/2,-n/2),t.drawImage(this.toCanvasImageSource(),p,b,h,y,l,d,m,f),t.restore()}_unmapSourceRegion(t,e,r,n,a,s){return s&&(t=(a%180===0?this.squarePixelWidth:this.squarePixelHeight)-t-r),a===90?[t,e,r,n]=[e,this.squarePixelHeight-t-r,n,r]:a===180?[t,e]=[this.squarePixelWidth-t-r,this.squarePixelHeight-e-n]:a===270&&([t,e,r,n]=[this.squarePixelWidth-e-n,t,n,r]),{sx:t,sy:e,sWidth:r,sHeight:n}}_drawWithFitAndMipmapping(t,e,r){let n=t.width,a=t.height,[s,o]=r.rotation%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],c=r.crop?r.crop.width:s,u=r.crop?r.crop.height:o,l=0;2*n0?Im(d,m):{canvas:t,context:e,isNew:r.targetIsFresh};p.imageSmoothingQuality="high",r.fillBlack?(p.fillStyle="black",p.fillRect(0,0,d,m)):b||p.clearRect(0,0,d,m),this.drawWithFit(p,{fit:r.fit,rotation:r.rotation,flip:r.flip,crop:r.crop}),p.globalCompositeOperation="copy";for(let h=l;h>1;h--){let y=n*2**h,k=a*2**h;p.drawImage(f,0,0,y,k,0,0,y/2,k/2)}p.globalCompositeOperation="source-over",l>0&&(e.imageSmoothingQuality="high",e.globalCompositeOperation="copy",e.drawImage(f,0,0,2*n,2*a,0,0,n,a),e.globalCompositeOperation="source-over")}toCanvasImageSource(){if(this._closed)throw new Error("VideoSample is closed.");if(g(this._data!==null),this._data instanceof ar||this._data instanceof Uint8Array){let t=this.toVideoFrame();return queueMicrotask(()=>t.close()),t}else return this._data}async transform(t){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.width!==void 0&&(!Number.isInteger(t.width)||t.width<=0))throw new TypeError("options.width, when provided, must be a positive integer.");if(t.height!==void 0&&(!Number.isInteger(t.height)||t.height<=0))throw new TypeError("options.height, when provided, must be a positive integer.");if(t.roundDimensionsTo!==void 0&&(!Number.isInteger(t.roundDimensionsTo)||t.roundDimensionsTo<=0))throw new TypeError("options.roundDimensionsTo, when provided, must be a positive integer.");if(t.fit!==void 0&&!["fill","contain","cover"].includes(t.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(t.width!==void 0&&t.height!==void 0&&t.fit===void 0)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(t.rotate!==void 0&&![0,90,180,270].includes(t.rotate))throw new TypeError("options.rotate, when provided, must be 0, 90, 180 or 270.");if(t.flip!==void 0&&typeof t.flip!="boolean")throw new TypeError("options.flip, when provided, must be a boolean.");if(t.crop!==void 0&&ni(t.crop,"options."),t.alpha!==void 0&&!["keep","discard"].includes(t.alpha))throw new TypeError("options.alpha, when provided, must be 'keep' or 'discard'.");let{rotation:e,flip:r}=Ua(this.rotation,this.flip,t.rotate??0,t.flip??!1),[n,a]=e%180===0?[this.squarePixelWidth,this.squarePixelHeight]:[this.squarePixelHeight,this.squarePixelWidth],s=t.crop;s&&(s=wn(s,n,a));let o=s?s.width:n,c=s?s.height:a,u=o/c,l,d;t.width!==void 0&&t.height===void 0?(l=t.width,d=l/u):t.width===void 0&&t.height!==void 0?(d=t.height,l=d*u):t.width!==void 0&&t.height!==void 0?(l=t.width,d=t.height):(l=o,d=c),l=La(l,t.roundDimensionsTo??1),d=La(d,t.roundDimensionsTo??1);let m={width:l,height:d,fit:t.fit??"fill",rotation:e,flip:r,crop:s??{left:0,top:0,width:n,height:a},alpha:t.alpha??"keep"};for(let h of wu){let y=h(this,m);if(_(y)&&(y=await y),y!==null)return y}let{canvas:f,context:p,isNew:b}=Im(m.width,m.height);return this._drawWithFitAndMipmapping(f,p,{fit:m.fit,rotation:m.rotation,flip:m.flip,crop:m.crop,targetIsFresh:b,fillBlack:m.alpha==="discard"}),new i(f,{timestamp:this.timestamp,duration:this.duration,rotation:0,flip:!1})}setRotation(t){if(![0,90,180,270].includes(t))throw new TypeError("newRotation must be 0, 90, 180, or 270.");this.rotation=t}setFlip(t){if(typeof t!="boolean")throw new TypeError("newFlip must be a boolean.");this.flip=t}setTimestamp(t){if(!Number.isFinite(t))throw new TypeError("newTimestamp must be a number.");this.timestamp=t}setDuration(t){if(!Number.isFinite(t)||t<0)throw new TypeError("newDuration must be a non-negative number.");this.duration=t}setEncodeOptions(t){if(!t||typeof t!="object")throw new TypeError("newEncodeOptions must be an object.");this.encodeOptions=t}[Symbol.dispose](){this.close()}},wu=[],Kp=i=>{wu.includes(i)||wu.push(i)},Qp=3,ba=[],Pm=0,Im=(i,t)=>{for(let n of ba)if(n.canvas.width===i&&n.canvas.height===t)return n.age=Pm++,{canvas:n.canvas,context:n.context,isNew:!1};let e;if(typeof OffscreenCanvas<"u")e=new OffscreenCanvas(i,t);else{if(typeof window>"u"||typeof document>"u")throw new Error("Cannot transform VideoSamples in this environment. Either run in an environment with OffscreenCanvas or HTMLCanvasElement, or supply a custom VideoSample transformer using registerVideoSampleTransformer().");e=document.createElement("canvas"),e.width=i,e.height=t}let r=e.getContext("2d",{alpha:!0,willReadFrequently:!1});if(!r)throw new Error("The '2d' canvas context is required to transform VideoSamples. Register a custom transformer using registerVideoSampleTransformer to work around this limitation.");return ba.length>=Qp&&ba.splice(Xi(ba,n=>n.age),1),ba.push({canvas:e,context:r,age:Pm++}),{canvas:e,context:r,isNew:!0}},Tn=class{constructor(t){if(t!==void 0){if(!t||typeof t!="object")throw new TypeError("init.colorSpace, when provided, must be an object.");let e=Object.keys(Pt);if(t.primaries!=null&&!e.includes(t.primaries))throw new TypeError(`init.colorSpace.primaries, when provided, must be one of ${e.join(", ")}.`);let r=Object.keys(It);if(t.transfer!=null&&!r.includes(t.transfer))throw new TypeError(`init.colorSpace.transfer, when provided, must be one of ${r.join(", ")}.`);let n=Object.keys(Et);if(t.matrix!=null&&!n.includes(t.matrix))throw new TypeError(`init.colorSpace.matrix, when provided, must be one of ${n.join(", ")}.`);if(t.fullRange!=null&&typeof t.fullRange!="boolean")throw new TypeError("init.colorSpace.fullRange, when provided, must be a boolean.")}this.primaries=t?.primaries??null,this.transfer=t?.transfer??null,this.matrix=t?.matrix??null,this.fullRange=t?.fullRange??null}toJSON(){return{primaries:this.primaries,transfer:this.transfer,matrix:this.matrix,fullRange:this.fullRange}}},ya=i=>typeof VideoFrame<"u"&&i instanceof VideoFrame,wn=(i,t,e)=>{let r=Math.min(i.left,t),n=Math.min(i.top,e),a=Math.min(i.width,t-r),s=Math.min(i.height,e-n);return g(a>=0),g(s>=0),{left:r,top:n,width:a,height:s}},ni=(i,t)=>{if(!i||typeof i!="object")throw new TypeError(t+"crop, when provided, must be an object.");if(!Number.isInteger(i.left)||i.left<0)throw new TypeError(t+"crop.left must be a non-negative integer.");if(!Number.isInteger(i.top)||i.top<0)throw new TypeError(t+"crop.top must be a non-negative integer.");if(!Number.isInteger(i.width)||i.width<0)throw new TypeError(t+"crop.width must be a non-negative integer.");if(!Number.isInteger(i.height)||i.height<0)throw new TypeError(t+"crop.height must be a non-negative integer.")},Em=i=>{if(!i||typeof i!="object")throw new TypeError("options must be an object.");if(i.colorSpace!==void 0&&!["display-p3","srgb"].includes(i.colorSpace))throw new TypeError("options.colorSpace, when provided, must be 'display-p3' or 'srgb'.");if(i.format!==void 0&&typeof i.format!="string")throw new TypeError("options.format, when provided, must be a string.");if(i.layout!==void 0){if(!Array.isArray(i.layout))throw new TypeError("options.layout, when provided, must be an array.");for(let t of i.layout){if(!t||typeof t!="object")throw new TypeError("Each entry in options.layout must be an object.");if(!Number.isInteger(t.offset)||t.offset<0)throw new TypeError("plane.offset must be a non-negative integer.");if(!Number.isInteger(t.stride)||t.stride<0)throw new TypeError("plane.stride must be a non-negative integer.")}}if(i.rect!==void 0){if(!i.rect||typeof i.rect!="object")throw new TypeError("options.rect, when provided, must be an object.");if(i.rect.x!==void 0&&(!Number.isInteger(i.rect.x)||i.rect.x<0))throw new TypeError("options.rect.x, when provided, must be a non-negative integer.");if(i.rect.y!==void 0&&(!Number.isInteger(i.rect.y)||i.rect.y<0))throw new TypeError("options.rect.y, when provided, must be a non-negative integer.");if(i.rect.width!==void 0&&(!Number.isInteger(i.rect.width)||i.rect.width<0))throw new TypeError("options.rect.width, when provided, must be a non-negative integer.");if(i.rect.height!==void 0&&(!Number.isInteger(i.rect.height)||i.rect.height<0))throw new TypeError("options.rect.height, when provided, must be a non-negative integer.")}},Gp=(i,t,e)=>{let r=So(i),n=[],a=0;for(let s of r){let o=Math.ceil(t/s.widthDivisor),c=Math.ceil(e/s.heightDivisor),u=o*s.sampleBytes,l=u*c;n.push({offset:a,stride:u}),a+=l}return n},So=i=>{let t=(e,r,n,a,s)=>{let o=[{sampleBytes:e,widthDivisor:1,heightDivisor:1},{sampleBytes:r,widthDivisor:n,heightDivisor:a},{sampleBytes:r,widthDivisor:n,heightDivisor:a}];return s&&o.push({sampleBytes:e,widthDivisor:1,heightDivisor:1}),o};switch(i){case"I420":return t(1,1,2,2,!1);case"I420P10":case"I420P12":return t(2,2,2,2,!1);case"I420A":return t(1,1,2,2,!0);case"I420AP10":case"I420AP12":return t(2,2,2,2,!0);case"I422":return t(1,1,2,1,!1);case"I422P10":case"I422P12":return t(2,2,2,1,!1);case"I422A":return t(1,1,2,1,!0);case"I422AP10":case"I422AP12":return t(2,2,2,1,!0);case"I444":return t(1,1,1,1,!1);case"I444P10":case"I444P12":return t(2,2,1,1,!1);case"I444A":return t(1,1,1,1,!0);case"I444AP10":case"I444AP12":return t(2,2,1,1,!0);case"NV12":return[{sampleBytes:1,widthDivisor:1,heightDivisor:1},{sampleBytes:2,widthDivisor:2,heightDivisor:2}];case"RGBA":case"RGBX":case"BGRA":case"BGRX":return[{sampleBytes:4,widthDivisor:1,heightDivisor:1}];default:ne(i),g(!1)}},vm=(i,t)=>{let e={left:0,top:0,width:i.codedWidth,height:i.codedHeight},r=t.rect,n=jp(e,r,i.codedWidth,i.codedHeight,i.format),a=t.layout,s;if(!t.format||t.format===i.format)s=i.format;else if(["RGBA","RGBX","BGRA","BGRX"].includes(t.format))s=t.format;else throw new Error("NotSupportedError: Invalid destination format.");return $p(n,s,a)},jp=(i,t,e,r,n)=>{let a={...i};if(t!==void 0){if(t.width===0||t.height===0)throw new TypeError("visibleRect dimensions cannot be zero.");if((t.x||0)+(t.width||0)>e)throw new TypeError("visibleRect exceeds codedWidth.");if((t.y||0)+(t.height||0)>r)throw new TypeError("visibleRect exceeds codedHeight.");a.x=t.x||0,a.y=t.y||0,a.width=t.width||0,a.height=t.height||0}if(!Xp(n,a))throw new TypeError("visibleRect alignment is invalid for the format.");return a},Xp=(i,t)=>{if(i===null)return!0;let e=So(i);for(let r=0;r{let r=So(t),n=r.length;if(e!==void 0&&e.length!==n)throw new TypeError(`Layout must have ${n} planes.`);let a=0,s=[],o=[];for(let c=0;c4294967295)throw new TypeError("Allocation size exceeds limit.");o.push(b),a=Math.max(a,b);for(let h=0;h 0.");if(!Number.isInteger(t.numberOfChannels)||t.numberOfChannels===0)throw new TypeError("Invalid AudioDataInit: numberOfChannels must be an integer > 0.");if(!Number.isFinite(t?.timestamp))throw new TypeError("init.timestamp must be a number.");let e=t.data.byteLength/(sr(t.format)*t.numberOfChannels);if(!Number.isInteger(e))throw new TypeError("Invalid AudioDataInit: data size is not a multiple of frame size.");this.format=t.format,this.sampleRate=t.sampleRate,this.numberOfFrames=e,this.numberOfChannels=t.numberOfChannels,this.timestamp=t.timestamp,this.duration=e/t.sampleRate;let r;if(t.data instanceof ArrayBuffer)r=new Uint8Array(t.data);else if(ArrayBuffer.isView(t.data))r=new Uint8Array(t.data.buffer,t.data.byteOffset,t.data.byteLength);else throw new TypeError("Invalid AudioDataInit: data is not a BufferSource.");let n=this.numberOfFrames*this.numberOfChannels*sr(this.format);if(r.byteLength=this.numberOfFrames)throw new RangeError("frameOffset out of range");let n=t.frameCount!==void 0?t.frameCount:this.numberOfFrames-r;if(n>this.numberOfFrames-r)throw new RangeError("frameCount out of range");let a=sr(e),s=Fi(e);if(s&&t.planeIndex>=this.numberOfChannels)throw new RangeError("planeIndex out of range");if(!s&&t.planeIndex!==0)throw new RangeError("planeIndex out of range");return(s?n:n*this.numberOfChannels)*a}copyTo(t,e){if(!fr(t))throw new TypeError("destination must be an ArrayBuffer or an ArrayBuffer view.");if(!e||typeof e!="object")throw new TypeError("options must be an object.");if(!Number.isInteger(e.planeIndex)||e.planeIndex<0)throw new TypeError("planeIndex must be a non-negative integer.");if(e.format!==void 0&&!To.has(e.format))throw new TypeError("Invalid format.");if(e.frameOffset!==void 0&&(!Number.isInteger(e.frameOffset)||e.frameOffset<0))throw new TypeError("frameOffset must be a non-negative integer.");if(e.frameCount!==void 0&&(!Number.isInteger(e.frameCount)||e.frameCount<0))throw new TypeError("frameCount must be a non-negative integer.");if(this._closed)throw new Error("AudioSample is closed.");let{format:r,frameCount:n,frameOffset:a}=e,{planeIndex:s}=e,o=this.format,c=r??this.format;if(!c)throw new Error("Destination format not determined");let u=this.numberOfFrames,l=this.numberOfChannels,d=a??0;if(d>=u)throw new RangeError("frameOffset out of range");let m=n!==void 0?n:u-d;if(m>u-d)throw new RangeError("frameCount out of range");let f=sr(c),p=Fi(c);if(p&&s>=l)throw new RangeError("planeIndex out of range");if(!p&&s!==0)throw new RangeError("planeIndex out of range");let h=(p?m:m*l)*f;if(t.byteLength2&&c!==o){Yp(this._data,y,o,c,l,s,d,m);return}else try{this._data.copyTo(t,{planeIndex:s,frameOffset:d,frameCount:m,format:c});return}catch(P){if(c==="f32-planar")throw P;o="f32-planar"}let T=_m(o),w=sr(o),A=Fi(o),x;if(this._data instanceof ii){let P=S=>{let I=this._data.getDataPlane(S);if(!(I instanceof Uint8Array))throw new TypeError("getDataPlane() must return a Uint8Array.");let E=u*w*(A?1:l);if(I.byteLength!==E)throw new TypeError(`Data plane ${S} has invalid size. Expected exactly ${E} bytes, got ${I.byteLength} bytes.`);return I};if(A)if(p)x=P(s),s=0;else{x=new Uint8Array(u*w*l);for(let S=0;Sthis.numberOfFrames)throw new RangeError("startFrame out of range.");if(e>this.numberOfFrames)throw new RangeError("endFrame out of range.");if(e0)for(let o=0;o0&&this.copyTo(a,{planeIndex:0,format:this.format,frameOffset:t,frameCount:r});return new i({data:a,format:this.format,sampleRate:this.sampleRate,numberOfChannels:this.numberOfChannels,timestamp:this.timestamp+t/this.sampleRate})}close(){this._closed||(Ta?.unregister(this),this._data instanceof ii?(this._data._referenceCount--,this._data._referenceCount===0&&this._data.close()):ka(this._data)?this._data.close():this._data=new Uint8Array(0),this._closed=!0)}toAudioData(){if(this._closed)throw new Error("AudioSample is closed.");return this._data instanceof ii?this._createAudioDataFromData():ka(this._data)?this._data.timestamp===this.microsecondTimestamp?this._data.clone():this._createAudioDataFromData():new AudioData({format:this.format,sampleRate:this.sampleRate,numberOfFrames:this.numberOfFrames,numberOfChannels:this.numberOfChannels,timestamp:this.microsecondTimestamp,data:this._data.buffer instanceof ArrayBuffer?this._data.buffer:this._data.slice()})}_createAudioDataFromData(){if(Fi(this.format)){let t=this.allocationSize({planeIndex:0,format:this.format}),e=new ArrayBuffer(t*this.numberOfChannels);for(let r=0;r0;){let l=Math.min(o,u),d=new Float32Array(n*l);for(let m=0;m0;){let d=Math.min(o,u),m=new Float32Array(n*d);for(let p=0;p{switch(i){case"u8":case"u8-planar":return 1;case"s16":case"s16-planar":return 2;case"s32":case"s32-planar":return 4;case"f32":case"f32-planar":return 4;default:throw new Error("Unknown AudioSampleFormat")}},Fi=i=>{switch(i){case"u8-planar":case"s16-planar":case"s32-planar":case"f32-planar":return!0;default:return!1}},_m=i=>{switch(i){case"u8":case"u8-planar":return(t,e)=>(t.getUint8(e)-128)/128;case"s16":case"s16-planar":return(t,e)=>t.getInt16(e,!0)/32768;case"s32":case"s32-planar":return(t,e)=>t.getInt32(e,!0)/2147483648;case"f32":case"f32-planar":return(t,e)=>t.getFloat32(e,!0)}},Rm=i=>{switch(i){case"u8":case"u8-planar":return(t,e,r)=>t.setUint8(e,ee(Math.round(r*128)+128,0,255));case"s16":case"s16-planar":return(t,e,r)=>t.setInt16(e,ee(Math.round(r*32768),-32768,32767),!0);case"s32":case"s32-planar":return(t,e,r)=>t.setInt32(e,ee(Math.round(r*2147483648),-2147483648,2147483647),!0);case"f32":case"f32-planar":return(t,e,r)=>t.setFloat32(e,r,!0)}},ka=i=>typeof AudioData<"u"&&i instanceof AudioData,Fm=i=>{switch(i){case"u8-planar":return"u8";case"s16-planar":return"s16";case"s32-planar":return"s32";case"f32-planar":return"f32";default:return i}},Yp=(i,t,e,r,n,a,s,o)=>{let c=_m(e),u=Rm(r),l=sr(e),d=sr(r),m=Fi(e);if(Fi(r))if(m){let p=new ArrayBuffer(o*l),b=N(p);i.copyTo(p,{planeIndex:a,frameOffset:s,frameCount:o,format:e});for(let h=0;h{let e=i.allocationSize({format:t,planeIndex:0}),r=new ArrayBuffer(e);return i.copyTo(r,{format:t,planeIndex:0}),new Ce({data:r,format:t,numberOfChannels:i.numberOfChannels,sampleRate:i.sampleRate,timestamp:i.timestamp,duration:i.duration})};var Ao=new Map,xo=new Map,Co=i=>{if(!i||typeof i!="object")throw new TypeError("Encoding config must be an object.");if(!le.includes(i.codec))throw new TypeError(`Invalid video codec '${i.codec}'. Must be one of: ${le.join(", ")}.`);let t=i.bitrate;if(i.quality===void 0&&t===void 0)throw new TypeError("config.quality must be provided.");if(i.quality!==void 0&&t!==void 0)throw new TypeError("config.quality and config.bitrate cannot both be provided.");if(i.quality!==void 0&&!(i.quality instanceof ce))throw new TypeError("config.quality, when provided, must be a Quality.");if(t!==void 0&&!(t instanceof ce)&&(!Number.isInteger(t)||t<=0))throw new TypeError("config.bitrate, when provided, must be a positive integer or a quality.");if(i.keyFrameInterval!==void 0&&(!Number.isFinite(i.keyFrameInterval)||i.keyFrameInterval<0))throw new TypeError("config.keyFrameInterval, when provided, must be a non-negative number.");if(i.sizeChangeBehavior!==void 0&&!["deny","passThrough","fill","contain","cover"].includes(i.sizeChangeBehavior))throw new TypeError("config.sizeChangeBehavior, when provided, must be 'deny', 'passThrough', 'fill', 'contain' or 'cover'.");if(i.transform!==void 0){if(typeof i.transform!="object"||!i.transform)throw new TypeError("config.transform, when provided, must be an object.");if(i.transform.width!==void 0&&(!Number.isInteger(i.transform.width)||i.transform.width<=0))throw new TypeError("config.transform.width, when provided, must be a positive integer.");if(i.transform.height!==void 0&&(!Number.isInteger(i.transform.height)||i.transform.height<=0))throw new TypeError("config.transform.height, when provided, must be a positive integer.");if(i.transform.fit!==void 0&&!["fill","contain","cover"].includes(i.transform.fit))throw new TypeError('config.transform.fit, when provided, must be one of "fill", "contain", or "cover".');if(i.transform.width!==void 0&&i.transform.height!==void 0&&i.transform.fit===void 0&&!["fill","contain","cover"].includes(i.sizeChangeBehavior))throw new TypeError("When both config.transform.width and config.transform.height are provided, config.transform.fit must also be provided.");if(i.transform.fit!==void 0&&["fill","contain","cover"].includes(i.sizeChangeBehavior)&&i.transform.fit!==i.sizeChangeBehavior)throw new TypeError("config.transform.fit, when provided, cannot differ from config.sizeChangeBehavior when config.sizeChangeBehavior is 'fill', 'contain' or 'cover', as sizeChangeBehavior already determines the fitting algorithm.");if(i.transform.rotate!==void 0&&![0,90,180,270].includes(i.transform.rotate))throw new TypeError("config.transform.rotate, when provided, must be 0, 90, 180 or 270.");if(i.transform.flip!==void 0&&typeof i.transform.flip!="boolean")throw new TypeError("config.transform.flip, when provided, must be a boolean.");if(i.transform.crop!==void 0&&ni(i.transform.crop,"config.transform."),i.transform.process!==void 0&&typeof i.transform.process!="function")throw new TypeError("config.transform.process, when provided, must be a function.");if(i.transform.frameRate!==void 0&&(!Number.isFinite(i.transform.frameRate)||i.transform.frameRate<=0))throw new TypeError("config.transform.frameRate, when provided, must be a finite positive number.");if(i.transform.force!==void 0&&typeof i.transform.force!="boolean")throw new TypeError("config.transform.force, when provided, must be a boolean.")}if(i.onEncodedPacket!==void 0&&typeof i.onEncodedPacket!="function")throw new TypeError("config.onEncodedPacket, when provided, must be a function.");if(i.onEncoderConfig!==void 0&&typeof i.onEncoderConfig!="function")throw new TypeError("config.onEncoderConfig, when provided, must be a function.");if(i.onEncodedSample!==void 0&&typeof i.onEncodedSample!="function")throw new TypeError("config.onEncodedSample, when provided, must be a function.");Dm(i.codec,i)},Dm=(i,t)=>{if(!t||typeof t!="object")throw new TypeError("Encoding options must be an object.");if(t.alpha!==void 0&&!["discard","keep"].includes(t.alpha))throw new TypeError("options.alpha, when provided, must be 'discard' or 'keep'.");let e=t.bitrateMode;if(e!==void 0&&!["constant","variable"].includes(e))throw new TypeError("bitrateMode, when provided, must be 'constant' or 'variable'.");if(t.latencyMode!==void 0&&!["quality","realtime"].includes(t.latencyMode))throw new TypeError("latencyMode, when provided, must be 'quality' or 'realtime'.");if(t.fullCodecString!==void 0&&typeof t.fullCodecString!="string")throw new TypeError("fullCodecString, when provided, must be a string.");if(t.fullCodecString!==void 0&&Ze(t.fullCodecString)!==i)throw new TypeError(`fullCodecString, when provided, must be a string that matches the specified codec (${i}).`);if(t.hardwareAcceleration!==void 0&&!["no-preference","prefer-hardware","prefer-software"].includes(t.hardwareAcceleration))throw new TypeError("hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(t.scalabilityMode!==void 0&&typeof t.scalabilityMode!="string")throw new TypeError("scalabilityMode, when provided, must be a string.");if(t.contentHint!==void 0&&typeof t.contentHint!="string")throw new TypeError("contentHint, when provided, must be a string.")},Au=i=>{let t=i.bitrateMode,e=i.quality._toVideoRateControl(i.codec,i.width,i.height,t),r=(a,s,o)=>({codec:i.fullCodecString??ms(i.codec,i.width,i.height,o,i.alpha==="keep"),width:i.width,height:i.height,displayWidth:i.squarePixelWidth,displayHeight:i.squarePixelHeight,bitrate:a,bitrateMode:s,alpha:i.alpha??"discard",framerate:i.framerate,latencyMode:i.latencyMode,hardwareAcceleration:i.hardwareAcceleration,scalabilityMode:i.scalabilityMode,contentHint:i.contentHint,...Sd(i.codec)}),n=[];return e.quantizer!==null&&n.push({config:r(void 0,"quantizer",e.bitrate),quantizer:e.quantizer}),e.bitrateMode!=="quantizer"&&n.push({config:r(e.bitrate,e.bitrateMode,e.bitrate),quantizer:null}),g(n.length>0),n},Po=i=>{if(!i||typeof i!="object")throw new TypeError("Encoding config must be an object.");if(!fe.includes(i.codec))throw new TypeError(`Invalid audio codec '${i.codec}'. Must be one of: ${fe.join(", ")}.`);let t=i.bitrate;if(i.quality===void 0&&t===void 0&&!(ae.includes(i.codec)||i.codec==="flac"))throw new TypeError("config.quality must be provided for compressed audio codecs.");if(i.quality!==void 0&&t!==void 0)throw new TypeError("config.quality and config.bitrate cannot both be provided.");if(i.quality!==void 0&&!(i.quality instanceof ce))throw new TypeError("config.quality, when provided, must be a Quality.");if(t!==void 0&&!(t instanceof ce)&&(!Number.isInteger(t)||t<=0))throw new TypeError("config.bitrate, when provided, must be a positive integer or a quality.");if(i.transform!==void 0){if(typeof i.transform!="object"||!i.transform)throw new TypeError("config.transform, when provided, must be an object.");if(i.transform.numberOfChannels!==void 0&&(!Number.isInteger(i.transform.numberOfChannels)||i.transform.numberOfChannels<=0))throw new TypeError("config.transform.numberOfChannels, when provided, must be a positive integer.");if(i.transform.sampleRate!==void 0&&(!Number.isInteger(i.transform.sampleRate)||i.transform.sampleRate<=0))throw new TypeError("config.transform.sampleRate, when provided, must be a positive integer.");if(i.transform.sampleFormat!==void 0&&!["u8","s16","s32","f32"].includes(i.transform.sampleFormat))throw new TypeError("config.transform.sampleFormat, when provided, must be one of: u8, s16, s32, f32.");if(i.transform.process!==void 0&&typeof i.transform.process!="function")throw new TypeError("config.transform.process, when provided, must be a function.")}if(i.onEncodedPacket!==void 0&&typeof i.onEncodedPacket!="function")throw new TypeError("config.onEncodedPacket, when provided, must be a function.");if(i.onEncoderConfig!==void 0&&typeof i.onEncoderConfig!="function")throw new TypeError("config.onEncoderConfig, when provided, must be a function.");if(i.onEncodedSample!==void 0&&typeof i.onEncodedSample!="function")throw new TypeError("config.onEncodedSample, when provided, must be a function.");Vm(i.codec,i)},Vm=(i,t)=>{if(!t||typeof t!="object")throw new TypeError("Encoding options must be an object.");let e=t.bitrateMode;if(e!==void 0&&!["constant","variable"].includes(e))throw new TypeError("bitrateMode, when provided, must be 'constant' or 'variable'.");if(t.fullCodecString!==void 0&&typeof t.fullCodecString!="string")throw new TypeError("fullCodecString, when provided, must be a string.");if(t.fullCodecString!==void 0&&Ze(t.fullCodecString)!==i)throw new TypeError(`fullCodecString, when provided, must be a string that matches the specified codec (${i}).`)},xu=i=>{let t=i.bitrateMode;return{codec:i.fullCodecString??hs(i.codec,i.numberOfChannels,i.sampleRate),numberOfChannels:i.numberOfChannels,sampleRate:i.sampleRate,bitrate:i.quality?._toAudioBitrate(i.codec),bitrateMode:i.quality?._bitrateMode??t,...Ad(i.codec)}},ce=class{constructor(t){if((typeof t=="number"||typeof t=="string")&&(t={quality:t}),!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.bitrateMode!==void 0&&!["constant","variable"].includes(t.bitrateMode))throw new TypeError("options.bitrateMode, when provided, must be 'constant' or 'variable'.");if("quality"in t){if(typeof t.quality=="string"?!(t.quality in Bm):typeof t.quality!="number"||Number.isNaN(t.quality))throw new TypeError("options.quality must be a number, or one of 'very-low', 'low', 'medium', 'high' or 'very-high'.");if(t.preferBitrate!==void 0&&typeof t.preferBitrate!="boolean")throw new TypeError("options.preferBitrate, when provided, must be a boolean.");if("bitrate"in t||"quantizer"in t)throw new TypeError("options.quality cannot be combined with options.bitrate or options.quantizer.");this._quality=typeof t.quality=="string"?Bm[t.quality]:t.quality,this._preferBitrate=t.preferBitrate??!1,this._bitrate=void 0,this._quantizer=void 0}else{if(t.bitrate!==void 0&&(!Number.isInteger(t.bitrate)||t.bitrate<=0))throw new TypeError("options.bitrate, when provided, must be a positive integer.");if(t.quantizer!==void 0&&(!Number.isInteger(t.quantizer)||t.quantizer<0))throw new TypeError("options.quantizer, when provided, must be a non-negative integer.");if(t.bitrate===void 0&&t.quantizer===void 0)throw new TypeError("At least one of options.bitrate or options.quantizer must be set.");if("preferBitrate"in t)throw new TypeError("options.preferBitrate can only be combined with options.quality.");this._quality=void 0,this._preferBitrate=!1,this._bitrate=t.bitrate,this._quantizer=t.quantizer}this._bitrateMode=t.bitrateMode}_toVideoRateControl(t,e,r,n){let a=Zp[t],s=null,o=this._bitrateMode??n??"variable";if(this._quantizer!==void 0){if(a)if(this._quantizera.max){if(this._bitrate===void 0)throw new Error(`Quantizer ${this._quantizer} is out of range for codec '${t}'; must be between ${a.min} and ${a.max}.`)}else s=this._quantizer,this._bitrate===void 0&&(o="quantizer");else if(this._bitrate===void 0)throw new Error(`Codec '${t}' does not support quantizer-based encoding. Provide a bitrate in the Quality to define a fallback.`)}else this._bitrate===void 0&&a&&!this._preferBitrate&&(g(this._quality!==void 0),s=ee(Math.round(Ol(a.worst,a.best,this._quality)),a.min,a.max));let c;if(this._bitrate!==void 0)c=this._bitrate;else{let u=this._quality;u===void 0&&(g(s!==null&&a),u=ee((s-a.worst)/(a.best-a.worst),0,1)),c=Om(t,e,r,Su(u))}return{quantizer:s,bitrate:c,bitrateMode:o}}_toVideoBitrate(t,e,r){return this._bitrate!==void 0?this._bitrate:(g(this._quality!==void 0),Om(t,e,r,Su(this._quality)))}_toAudioBitrate(t){if(ae.includes(t)||t==="flac")return;if(this._bitrate!==void 0)return this._bitrate;if(this._quality===void 0)throw new Error("This Quality defines neither a quality level nor a bitrate and therefore cannot be used for audio encoding.");let e=Su(this._quality),n={aac:128e3,opus:64e3,mp3:16e4,vorbis:64e3,ac3:384e3,eac3:192e3,dts:768e3}[t];if(!n)throw new Error(`Unhandled codec: ${t}`);let a=n*e;return t==="aac"?a=[96e3,128e3,16e4,192e3].reduce((o,c)=>Math.abs(c-a)Math.abs(c-a).3*Math.exp(2.5538*i),Om=(i,t,e,r)=>{let n=t*e,a=1920*1080,s=3e6,o=Math.pow(n/a,.95),c=s*o,u={avc:1,hevc:.6,vp9:.6,av1:.4,vp8:1.2,prores:22e7/s},d=c*u[i]*r;return Math.ceil(d/1e3)*1e3},Cu=(i,t)=>{if(i==="avc")return{avc:{quantizer:t}};if(i==="hevc")return{hevc:{quantizer:t}};if(i==="vp9")return{vp9:{quantizer:t}};if(i==="av1")return{av1:{quantizer:t}};g(!1)},Jp=new ce("very-low"),eh=new ce("low"),th=new ce("medium"),rh=new ce("high"),ih=new ce("very-high"),nh=i=>{if(le.includes(i))return Io(i);if(fe.includes(i))return Eo(i);if(Ye.includes(i))return vo(i);throw new TypeError(`Unknown codec '${i}'.`)},Io=async(i,t={})=>{let{width:e=1280,height:r=720,quality:n,bitrate:a,frameRate:s,...o}=t;if(!le.includes(i))return!1;if(!Number.isInteger(e)||e<=0)throw new TypeError("width must be a positive integer.");if(!Number.isInteger(r)||r<=0)throw new TypeError("height must be a positive integer.");if(n!==void 0&&!(n instanceof ce))throw new TypeError("quality, when provided, must be a Quality.");if(n!==void 0&&a!==void 0)throw new TypeError("quality and bitrate cannot both be provided.");if(a!==void 0&&!(a instanceof ce)&&(!Number.isInteger(a)||a<=0))throw new TypeError("bitrate must be a positive integer or a quality.");if(s!==void 0&&(!Number.isFinite(s)||s<=0))throw new TypeError("frameRate, when provided, must be a finite positive number.");Dm(i,o);let c=ai(n,a)??new ce("medium"),u;try{u=Au({codec:i,width:e,height:r,quality:c,framerate:s,...o,alpha:"discard"})}catch{return!1}let l=JSON.stringify(u),d=Ao.get(l);if(d)return d;let m=(async()=>{for(let{config:p}of u)if(Sn.some(b=>b.supports(i,p)))return!0;if(typeof VideoEncoder>"u"||(e%2===1||r%2===1)&&(i==="avc"||i==="hevc"))return!1;for(let{config:p,quantizer:b}of u){try{if(!(await VideoEncoder.isConfigSupported(p)).supported)continue}catch{continue}if(!yi()||await new Promise(async y=>{try{let k=new VideoEncoder({output:()=>{},error:()=>y(!1)});k.configure(p);let T=new Uint8Array(e*r*4),w=new VideoFrame(T,{format:"RGBA",codedWidth:e,codedHeight:r,timestamp:0});k.encode(w,b!==null?Cu(i,b):void 0),w.close(),await k.flush(),y(!0)}catch{y(!1)}}))return!0}return!1})();return Ao.set(l,m),m},Eo=async(i,t={})=>{let{numberOfChannels:e=2,sampleRate:r=48e3,quality:n,bitrate:a,...s}=t;if(!fe.includes(i))return!1;if(!Number.isInteger(e)||e<=0)throw new TypeError("numberOfChannels must be a positive integer.");if(!Number.isInteger(r)||r<=0)throw new TypeError("sampleRate must be a positive integer.");if(n!==void 0&&!(n instanceof ce))throw new TypeError("quality, when provided, must be a Quality.");if(n!==void 0&&a!==void 0)throw new TypeError("quality and bitrate cannot both be provided.");if(a!==void 0&&!(a instanceof ce)&&(!Number.isInteger(a)||a<=0))throw new TypeError("bitrate must be a positive integer.");Vm(i,s);let o=ai(n,a)??new ce("medium"),c=xu({codec:i,numberOfChannels:e,sampleRate:r,quality:o,...s}),u=JSON.stringify(c),l=xo.get(u);if(l)return l;let d=(async()=>{if(An.some(m=>m.supports(i,c))||ae.includes(i))return!0;if(typeof AudioEncoder>"u")return!1;try{return(await AudioEncoder.isConfigSupported(c)).supported===!0}catch{return!1}})();return xo.set(u,d),d},ai=(i,t)=>{if(i!==void 0)return i;if(t!==void 0)return t instanceof ce?t:new ce({bitrate:t})},vo=async i=>!!Ye.includes(i),ah=async()=>{let[i,t,e]=await Promise.all([Um(),wa(),zm()]);return[...i,...t,...e]},Um=async(i=le,t)=>{let e=await Promise.all(i.map(r=>Io(r,t)));return i.filter((r,n)=>e[n])},wa=async(i=fe,t)=>{let e=await Promise.all(i.map(r=>Eo(r,t)));return i.filter((r,n)=>e[n])},zm=async(i=Ye)=>{let t=await Promise.all(i.map(vo));return i.filter((e,r)=>t[r])},Pu=async(i,t)=>{for(let e of i)if(await Io(e,t))return e;return null},sh=async(i,t)=>{for(let e of i)if(await Eo(e,t))return e;return null},oh=async i=>{for(let t of i)if(await vo(t))return t;return null};var _o=class{static supports(t,e){return!1}},Ro=class{static supports(t,e){return!1}},Fo=class{static supports(t,e){return!1}},Mo=class{static supports(t,e){return!1}},ti=[],ri=[],Sn=[],An=[],ch=i=>{if(i.prototype instanceof _o){let t=i;if(ti.includes(t)){z._warn("Video decoder already registered.");return}ti.push(t),yo.clear()}else if(i.prototype instanceof Ro){let t=i;if(ri.includes(t)){z._warn("Audio decoder already registered.");return}ri.push(t),ko.clear()}else throw new TypeError("Decoder must be a CustomVideoDecoder or CustomAudioDecoder.")},uh=i=>{if(i.prototype instanceof Fo){let t=i;if(Sn.includes(t)){z._warn("Video encoder already registered.");return}Sn.push(t),Ao.clear()}else if(i.prototype instanceof Mo){let t=i;if(An.includes(t)){z._warn("Audio encoder already registered.");return}An.push(t),xo.clear()}else throw new TypeError("Encoder must be a CustomVideoEncoder or CustomAudioEncoder.")};var Nm=i=>{let r=i>>2,n=4096,a=0,s=12,o=0;for(r<0&&(r=-r,a=128),r+=33,r>8191&&(r=8191);(r&n)!==n&&s>=5;)n>>=1,s--;return o=r>>s-4&15,~(a|s-5<<4|o)&255},Lm=i=>{let e=0,r=0,n=~i;n&128&&(n&=-129,e=-1),r=((n&240)>>4)+5;let a=(1<{let e=2048,r=0,n=11,a=0,s=i>>3;for(s<0?s=-s-1:r=128,s>4095&&(s=4095);(s&e)!==e&&n>=5;)e>>=1,n--;return a=s>>(n===4?1:n-4)&15,(r|n-4<<4|a)^85},Hm=i=>{let t=0,e=0,r=i^85;r&128&&(r&=-129,t=-1),e=((r&240)>>4)+4;let n=0;return e!==4?n=1<{if(!i||typeof i!="object")throw new TypeError("options must be an object.");if(i.metadataOnly!==void 0&&typeof i.metadataOnly!="boolean")throw new TypeError("options.metadataOnly, when defined, must be a boolean.");if(i.verifyKeyPackets!==void 0&&typeof i.verifyKeyPackets!="boolean")throw new TypeError("options.verifyKeyPackets, when defined, must be a boolean.");if(i.verifyKeyPackets&&i.metadataOnly)throw new TypeError("options.verifyKeyPackets and options.metadataOnly cannot be enabled together.");if(i.skipLiveWait!==void 0&&typeof i.skipLiveWait!="boolean")throw new TypeError("options.skipLiveWait, when defined, must be a boolean.")},vr=i=>{if(!ve(i))throw new TypeError("timestamp must be a number.")},Iu=(i,t,e)=>e.verifyKeyPackets?t.then(async r=>{if(!r||r.type==="delta")return r;let n=await i.determinePacketType(r);return n&&(r.type=n),r}):t,ft=class{constructor(t){if(!(t instanceof Oi))throw new TypeError("track must be an InputTrack.");this._track=t}async getFirstPacket(t={}){if(Mi(t),this._track.input._disposed)throw new ke;return Iu(this._track,this._track._backing.getFirstPacket(t),t)}async getFirstKeyPacket(t={}){Mi(t);let e=await this.getFirstPacket(t);return e?e.type==="key"?e:this.getNextKeyPacket(e,t):null}async getPacket(t,e={}){if(vr(t),Mi(e),this._track.input._disposed)throw new ke;return Iu(this._track,this._track._backing.getPacket(t,e),e)}async getNextPacket(t,e={}){if(!(t instanceof X))throw new TypeError("packet must be an EncodedPacket.");if(Mi(e),this._track.input._disposed)throw new ke;return Iu(this._track,this._track._backing.getNextPacket(t,e),e)}async getKeyPacket(t,e={}){if(vr(t),Mi(e),this._track.input._disposed)throw new ke;if(!e.verifyKeyPackets)return this._track._backing.getKeyPacket(t,e);let r=await this._track._backing.getKeyPacket(t,e);return r&&(g(r.type==="key"),await this._track.determinePacketType(r)==="delta"?this.getKeyPacket(r.timestamp-1/await this._track.getTimeResolution(),e):r)}async getNextKeyPacket(t,e={}){if(!(t instanceof X))throw new TypeError("packet must be an EncodedPacket.");if(Mi(e),this._track.input._disposed)throw new ke;if(!e.verifyKeyPackets)return this._track._backing.getNextKeyPacket(t,e);let r=await this._track._backing.getNextKeyPacket(t,e);return r&&(g(r.type==="key"),await this._track.determinePacketType(r)==="delta"?this.getNextKeyPacket(r,e):r)}packets(t,e,r={}){if(t!==void 0&&!(t instanceof X))throw new TypeError("startPacket must be an EncodedPacket.");if(t!==void 0&&t.isMetadataOnly&&!r?.metadataOnly)throw new TypeError("startPacket can only be metadata-only if options.metadataOnly is enabled.");if(e!==void 0&&!(e instanceof X))throw new TypeError("endPacket must be an EncodedPacket.");if(Mi(r),this._track.input._disposed)throw new ke;let n=[],{promise:a,resolve:s}=J(),{promise:o,resolve:c}=J(),u=!1,l=!1,d=null,m=!1,f=[],p=()=>Math.max(2,f.length);(async()=>{let h=t??await this.getFirstPacket(r);for(;h&&!l&&!this._track.input._disposed&&!(e&&h.sequenceNumber>=e?.sequenceNumber);){if(n.length>p()){({promise:o,resolve:c}=J()),await o;continue}n.push(h),s(),{promise:a,resolve:s}=J(),h=await this.getNextPacket(h,r)}u=!0,s()})().catch(h=>{m||(d=h,m=!0,s())});let b=this._track;return{async next(){for(;;){if(b.input._disposed)throw new ke;if(l)return{value:void 0,done:!0};if(m)throw d;if(n.length>0){let h=n.shift(),y=performance.now();for(f.push(y);f.length>0&&y-f[0]>=1e3;)f.shift();return c(),{value:h,done:!1}}else{if(u)return{value:void 0,done:!0};await a}}},async return(){return l=!0,c(),s(),{value:void 0,done:!0}},async throw(h){throw h},[Symbol.asyncIterator](){return this}}}},Sa=class{constructor(t,e){this.onSample=t;this.onError=e}},Aa=class{mediaSamplesInRange(t=-1/0,e=1/0,r){vr(t),vr(e);let n=[],a=!1,s=null,{promise:o,resolve:c}=J(),{promise:u,resolve:l}=J(),d=!1,m=!1,f=!1,p=null,b=null,h=!1,y={...r,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{p=await this._createDecoder(S=>{if(l(),S.timestamp>=e&&(m=!0),m){S.close();return}s&&(S.timestamp>t?(n.push(s),a=!0):s.close()),S.timestamp>=t&&(n.push(S),a=!0),s=a?null:S,n.length>0&&(c(),{promise:o,resolve:c}=J())},S=>{h||(b=S,h=!0,c())});let w=this._createPacketSink(),A=await w.getKeyPacket(t,y)??await w.getFirstKeyPacket(y),x=A,P=w.packets(A??void 0,void 0,y);for(await P.next();x&&!m&&!this._track.input._disposed;){let S=qm(n.length);if(n.length+p.getDecodeQueueSize()>S){({promise:u,resolve:l}=J()),await u;continue}p.decode(x);let I=await P.next();if(I.done)break;x=I.value}await P.return(),!f&&!this._track.input._disposed&&await p.flush(),!a&&s&&n.push(s),d=!0,c()})().catch(w=>{h||(b=w,h=!0,c())}).finally(()=>{p?.close()});let k=this._track,T=()=>{s?.close();for(let w of n)w.close()};return{async next(){for(;;){if(k.input._disposed)throw f=!0,m=!0,T(),new ke;if(f)return{value:void 0,done:!0};if(h)throw f=!0,m=!0,T(),b;if(n.length>0){let w=n.shift();return l(),{value:w,done:!1}}else if(!d)await o;else return{value:void 0,done:!0}}},async return(){return f=!0,m=!0,l(),c(),T(),{value:void 0,done:!0}},async throw(w){throw w},[Symbol.asyncIterator](){return this}}}mediaSamplesAtTimestamps(t,e){Rl(t);let r=_l(t),n=[],a=[],{promise:s,resolve:o}=J(),{promise:c,resolve:u}=J(),l=!1,d=!1,m=null,f=null,p=!1,b=T=>{a.push(T),o(),{promise:s,resolve:o}=J()},h={...e,verifyKeyPackets:!0,metadataOnly:!1};(async()=>{m=await this._createDecoder(S=>{if(u(),d){S.close();return}let I=0;for(;n.length>0&&S.timestamp-n[0]>-1e-10;)I++,n.shift();if(I>0)for(let E=0;E{p||(f=S,p=!0,o())});let T=this._createPacketSink(),w=null,A=null,x=-1,C=async()=>{g(A),g(m);let S=A;for(m.decode(S);S.sequenceNumberI&&!d;)({promise:c,resolve:u}=J()),await c;if(d)break;let E=await T.getNextPacket(S,h);g(E),m.decode(E),S=E}x=-1},P=async()=>{g(m),await m.flush();for(let S=0;S{p||(f=T,p=!0,o())}).finally(()=>{m?.close()});let y=this._track,k=()=>{for(let T of a)T?.close()};return{async next(){for(;;){if(y.input._disposed)throw d=!0,k(),new ke;if(d)return{value:void 0,done:!0};if(p)throw d=!0,k(),f;if(a.length>0){let T=a.shift();return g(T!==void 0),u(),{value:T,done:!1}}else if(!l)await s;else return{value:void 0,done:!0}}},async return(){return d=!0,u(),o(),k(),{value:void 0,done:!0}},async throw(T){throw T},[Symbol.asyncIterator](){return this}}}},qm=i=>i===0?40:8,vu=class extends Sa{constructor(e,r,n,a,s,o,c){super(e,r);this.codec=n;this.decoderConfig=a;this.rotation=s;this.flip=o;this.timeResolution=c;this.decoder=null;this.customDecoder=null;this.customDecoderCallSerializer=new Or;this.customDecoderQueueSize=0;this.inputTimestamps=[];this.sampleQueue=[];this.currentPacketIndex=0;this.raslSkipped=!1;this.alphaDecoder=null;this.alphaHadKeyframe=!1;this.colorQueue=[];this.alphaQueue=[];this.merger=null;this.decodedAlphaChunkCount=0;this.alphaDecoderQueueSize=0;this.nullAlphaFrameQueue=[];this.currentAlphaPacketIndex=0;this.alphaRaslSkipped=!1;this.finalSamples=[];this.mergeAlphaPromises=[];let u=ti.find(l=>l.supports(n,a));if(u)this.customDecoder=new u,this.customDecoder.codec=n,this.customDecoder.config=a,this.customDecoder.onSample=l=>{if(!(l instanceof Xe))throw new TypeError("The argument passed to onSample must be a VideoSample.");this.finalizeAndEmitSample(l)},this.customDecoder.onError=l=>{r(l)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(l=>r(l));else{let l=m=>{if(this.alphaQueue.length>0){let f=this.alphaQueue.shift();g(f!==void 0),this.mergeAlpha(m,f)}else this.colorQueue.push(m)};if(Nn()){if(n==="avc"&&this.decoderConfig.description){let m=Wr($(this.decoderConfig.description));if(m&&m.sequenceParameterSets.length>0){let f=Jt(m.sequenceParameterSets[0]);f&&(f.frameMbsOnlyFlag===0&&(this.decoderConfig={...this.decoderConfig,hardwareAcceleration:"prefer-software"}),f.maxDecFrameBuffering!==0&&f.bitstreamRestrictionFlag!==1&&(m.sequenceParameterSets[0]=Cc(f),this.decoderConfig={...this.decoderConfig,description:es(m)}))}}Ki(this.decoderConfig.colorSpace)||(this.decoderConfig={...this.decoderConfig,colorSpace:{primaries:this.decoderConfig.colorSpace?.primaries??"bt709",matrix:this.decoderConfig.colorSpace?.matrix??"bt709",transfer:this.decoderConfig.colorSpace?.transfer??"bt709",fullRange:this.decoderConfig.colorSpace?.fullRange??!1}})}let d=new Error("Decoding error").stack;this.decoder=new VideoDecoder({output:m=>{try{l(m)}catch(f){this.onError(f)}},error:m=>{m.stack=d,this.onError(m)}}),this.decoder.configure(this.decoderConfig)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(g(this.decoder),Math.max(this.decoder.decodeQueueSize,this.alphaDecoder?.decodeQueueSize??0))}decode(e){if(this.codec==="hevc"&&this.currentPacketIndex>0&&!this.raslSkipped){if(this.hasHevcRaslPicture(e.data))return;this.raslSkipped=!0}if(this.customDecoder)this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(r=>this.onError(r)).finally(()=>this.customDecoderQueueSize--);else{if(g(this.decoder),Qt()||mc(this.inputTimestamps,e.timestamp,r=>r),Nn()&&this.currentPacketIndex===0){if(this.codec==="avc"){let r=[],n=!1;for(let s of xc(e.data,this.decoderConfig)){let o=Yt(e.data[s.offset]);if(n||=o>=1&&o<=5,o===9){if(n)break;r.length=0}o>=20&&o<=31||r.push(e.data.subarray(s.offset,s.offset+s.length))}if(!this.decoderConfig.description)for(let s=0;s{if(this.colorQueue.length>0){let o=this.colorQueue.shift();g(o!==void 0),this.mergeAlpha(o,s)}else this.alphaQueue.push(s);for(this.decodedAlphaChunkCount++;this.nullAlphaFrameQueue.length>0&&this.nullAlphaFrameQueue[0]===this.decodedAlphaChunkCount;)if(this.nullAlphaFrameQueue.shift(),this.colorQueue.length>0){let o=this.colorQueue.shift();g(o!==void 0),this.mergeAlpha(o,null)}else this.alphaQueue.push(null);this.alphaDecoderQueueSize--},a=new Error("Decoding error").stack;this.alphaDecoder=new VideoDecoder({output:s=>{try{n(s)}catch(o){this.onError(o)}},error:s=>{s.stack=a,this.onError(s)}}),this.alphaDecoder.configure({...this.decoderConfig,colorSpace:{fullRange:!0,matrix:"bt709",primaries:"bt709",transfer:"bt709"}})}let r=qr(this.codec,this.decoderConfig,e.sideData.alpha);if(this.alphaHadKeyframe||(this.alphaHadKeyframe=r==="key"),this.alphaHadKeyframe){if(this.codec==="hevc"&&this.currentAlphaPacketIndex>0&&!this.alphaRaslSkipped){if(this.hasHevcRaslPicture(e.sideData.alpha)){this.pushNullAlphaFrame();return}this.alphaRaslSkipped=!0}this.currentAlphaPacketIndex++,this.alphaDecoder.decode(e.alphaToEncodedVideoChunk(r??e.type)),this.alphaDecoderQueueSize++}else this.pushNullAlphaFrame()}pushNullAlphaFrame(){this.alphaDecoderQueueSize===0?this.alphaQueue.push(null):this.nullAlphaFrameQueue.push(this.decodedAlphaChunkCount+this.alphaDecoderQueueSize)}hasHevcRaslPicture(e){for(let r of Wn(e,this.decoderConfig)){let n=_t(e[r.offset]);if(n===8||n===9)return!0}return!1}sampleHandler(e){if(Qt()){if(this.sampleQueue.length>0&&e.timestamp>=Z(this.sampleQueue).timestamp){for(let r of this.sampleQueue)this.finalizeAndEmitSample(r);this.sampleQueue.length=0}mc(this.sampleQueue,e,r=>r.timestamp)}else{let r=this.inputTimestamps.shift();g(r!==void 0),e.setTimestamp(r),this.finalizeAndEmitSample(e)}}finalizeAndEmitSample(e){e.setTimestamp(Math.round(e.timestamp*this.timeResolution)/this.timeResolution),e.setDuration(Math.round(e.duration*this.timeResolution)/this.timeResolution),e.setRotation(this.rotation),e.setFlip(this.flip),this.onSample(e)}async mergeAlpha(e,r){let n=J();this.mergeAlphaPromises.push(n.promise);let a={sample:null};this.finalSamples.push(a);try{if(!r)a.sample=new Xe(e);else{g(this.merger);let s=await this.merger.merge(e,r);a.sample=new Xe(s)}for(;this.finalSamples.length>0&&this.finalSamples[0].sample!==null;){let s=this.finalSamples.shift();this.sampleHandler(s.sample)}}catch(s){Qi(this.finalSamples,a),this.onError(s)}finally{Qi(this.mergeAlphaPromises,n.promise),n.resolve()}}async flush(){if(this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(g(this.decoder),await Promise.all([this.decoder.flush(),this.alphaDecoder?.flush()]),await Promise.all(this.mergeAlphaPromises),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.alphaHadKeyframe=!1,this.decodedAlphaChunkCount=0,this.alphaDecoderQueueSize=0,this.nullAlphaFrameQueue.length=0,this.currentAlphaPacketIndex=0,this.alphaRaslSkipped=!1),Qt()){for(let e of this.sampleQueue)this.finalizeAndEmitSample(e);this.sampleQueue.length=0}this.currentPacketIndex=0,this.raslSkipped=!1}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(g(this.decoder),this.decoder.state!=="closed"&&this.decoder.close(),this.alphaDecoder&&this.alphaDecoder.state!=="closed"&&this.alphaDecoder.close(),this.colorQueue.forEach(e=>e.close()),this.colorQueue.length=0,this.alphaQueue.forEach(e=>e?.close()),this.alphaQueue.length=0,this.merger?.close());for(let e of this.sampleQueue)e.close();this.sampleQueue.length=0}},Eu=null,_u=class{constructor(){this.workers=[];this.nextWorkerIndex=0;this.pendingRequests=new Map;this.nextRequestId=0}merge(t,e){if(this.workers.length===0){if(!Eu){let o=new Blob([`(${lh.toString()})()`],{type:"application/javascript"});Eu=URL.createObjectURL(o)}let s=ee(navigator.hardwareConcurrency,1,4);for(let o=0;o{let l=u.data,d=this.pendingRequests.get(l.id);d&&(this.pendingRequests.delete(l.id),"error"in l?d.reject(new Error(l.error)):d.resolve(l.frame))}),c.addEventListener("error",u=>{let l=new Error(u.message||"Color/alpha merge worker error.");for(let d of this.pendingRequests.values())d.reject(l);this.pendingRequests.clear()}),this.workers.push(c)}}let r=this.nextRequestId++,n=J();this.pendingRequests.set(r,n);let a=this.workers[this.nextWorkerIndex];return this.nextWorkerIndex=(this.nextWorkerIndex+1)%this.workers.length,a.postMessage({id:r,color:t,alpha:e},{transfer:[t,e]}),n.promise}close(){for(let e of this.workers)e.terminate();this.workers.length=0;let t=new Error("Color/alpha merger closed.");for(let e of this.pendingRequests.values())e.reject(t);this.pendingRequests.clear()}},lh=()=>{let i=null,t=null,e=Promise.resolve();self.addEventListener("message",c=>{let{id:u,color:l,alpha:d}=c.data;e=e.then(async()=>{try{let m=await r(l,d);self.postMessage({id:u,frame:m},{transfer:[m]})}catch(m){self.postMessage({id:u,error:m.message})}finally{l.close(),d.close()}})});let r=async(c,u)=>{let l=c.format,d=u.format;if(!l||!d)throw new Error("CPU color/alpha merging requires a known VideoFrame format.");let m=l.includes("P10"),f=l.includes("P12"),p=d.includes("P10"),b=d.includes("P12");if(p!==m||b!==f)throw new Error(`CPU color/alpha merging requires the alpha frame to have the same bit depth as the color frame (color: '${l}', alpha: '${d}').`);if(l==="RGBX"||l==="RGBA"||l==="BGRX"||l==="BGRA")return await n(c,u,l);if(l==="I420"||l==="I420P10"||l==="I420P12"||l==="I422"||l==="I422P10"||l==="I422P12"||l==="I444"||l==="I444P10"||l==="I444P12")return await a(c,u,l);if(l==="NV12")return await s(c,u);throw new Error(`CPU color/alpha merging does not support format '${l}'.`)},n=async(c,u,l)=>{let d=c.visibleRect?.width??c.codedWidth,m=c.visibleRect?.height??c.codedHeight,f=d*m,p=new Uint8Array(f*4);await c.copyTo(p);let b=await o(u,d,m,1);for(let k=0,T=3;k{let d=c.visibleRect?.width??c.codedWidth,m=c.visibleRect?.height??c.codedHeight,f=l.includes("P10"),p=l.includes("P12"),b=f||p?2:1,h,y;l.startsWith("I420")?(h=Math.ceil(d/2),y=Math.ceil(m/2)):l.startsWith("I422")?(h=Math.ceil(d/2),y=m):(h=d,y=m);let k=d*m,T=h*y,w=k*b,A=T*b,x=k*b,C=w+2*A+x,P=new Uint8Array(C);await c.copyTo(P);let S=await o(u,d,m,b),I=w+2*A;P.set(S,I);let v={format:l.slice(0,4)+"A"+l.slice(4),codedWidth:d,codedHeight:m,timestamp:c.timestamp,duration:c.duration??void 0,transfer:[P.buffer]};return new VideoFrame(P,v)},s=async(c,u)=>{let l=c.visibleRect?.width??c.codedWidth,d=c.visibleRect?.height??c.codedHeight,m=l*d,f=Math.ceil(l/2),p=Math.ceil(d/2),b=f*p,h=c.allocationSize();(!t||t.byteLength!==h)&&(t=new Uint8Array(h)),await c.copyTo(t);let y=new Uint8Array(m+2*b+m);y.set(t.subarray(0,m),0);let k=m,T=m+b,w=m;for(let C=0;C{let m=c.allocationSize();(!i||i.byteLength!==m)&&(i=new Uint8Array(m)),await c.copyTo(i);let f=c.format;if(f==="RGBA"||f==="BGRA"||f==="RGBX"||f==="BGRX"){let p=f==="RGBA"||f==="RGBX"?0:2,b=u*l;for(let h=0;h{if(!i||typeof i!="object")throw new TypeError("decoderOptions must be an object.");if(i.hardwareAcceleration!==void 0&&!["no-preference","prefer-hardware","prefer-software"].includes(i.hardwareAcceleration))throw new TypeError("decoderOptions.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(i.optimizeForLatency!==void 0&&typeof i.optimizeForLatency!="boolean")throw new TypeError("decoderOptions.optimizeForLatency, when provided, must be a boolean.")},Bi=class extends Aa{constructor(t,e={}){if(!(t instanceof _r))throw new TypeError("videoTrack must be an InputVideoTrack.");Km(e),super(),this._track=t,this._decoderOptions=e}async _createDecoder(t,e){if(!await this._track.canDecode())throw typeof VideoDecoder>"u"?new Error(Gi("VideoDecoder")):new Error("This video track cannot be decoded in this environment. Make sure to check decodability before using a track.");let r=await this._track.getCodec(),n=await this._track.getRotation(),a=await this._track.getFlip(),s=await this._track.getDecoderConfig(),o=await this._track.getTimeResolution();return g(r&&s),s={...s,hardwareAcceleration:this._decoderOptions.hardwareAcceleration,optimizeForLatency:this._decoderOptions.optimizeForLatency},new vu(t,e,r,s,n,a,o)}_createPacketSink(){return new ft(this._track)}async getSample(t,e={}){vr(t);for await(let r of this.mediaSamplesAtTimestamps([t],e))return r;throw new Error("Internal error: Iterator returned nothing.")}samples(t,e,r={}){return this.mediaSamplesInRange(t,e,r)}samplesAtTimestamps(t,e={}){return this.mediaSamplesAtTimestamps(t,e)}},Ru=class{constructor(t,e={}){this._rotation=0;this._flip=!1;this._initPromise=null;this._nextCanvasIndex=0;if(!(t instanceof _r))throw new TypeError("videoTrack must be an InputVideoTrack.");if(e&&typeof e!="object")throw new TypeError("options must be an object.");if(e.alpha!==void 0&&typeof e.alpha!="boolean")throw new TypeError("options.alpha, when provided, must be a boolean.");if(e.width!==void 0&&(!Number.isInteger(e.width)||e.width<=0))throw new TypeError("options.width, when defined, must be a positive integer.");if(e.height!==void 0&&(!Number.isInteger(e.height)||e.height<=0))throw new TypeError("options.height, when defined, must be a positive integer.");if(e.fit!==void 0&&!["fill","contain","cover"].includes(e.fit))throw new TypeError('options.fit, when provided, must be one of "fill", "contain", or "cover".');if(e.width!==void 0&&e.height!==void 0&&e.fit===void 0)throw new TypeError("When both options.width and options.height are provided, options.fit must also be provided.");if(e.rotation!==void 0&&![0,90,180,270].includes(e.rotation))throw new TypeError("options.rotation, when provided, must be 0, 90, 180 or 270.");if(e.flip!==void 0&&typeof e.flip!="boolean")throw new TypeError("options.flip, when provided, must be a boolean.");if(e.crop!==void 0&&ni(e.crop,"options."),e.poolSize!==void 0&&(typeof e.poolSize!="number"||!Number.isInteger(e.poolSize)||e.poolSize<0))throw new TypeError("poolSize must be a non-negative integer.");e.decoderOptions!==void 0&&Km(e.decoderOptions),this._videoTrack=t,this._alpha=e.alpha??!1,this._options=e,this._fit=e.fit??"fill",this._videoSampleSink=new Bi(t,e.decoderOptions),this._canvasPool=Array.from({length:e.poolSize??0},()=>null)}_ensureInit(){return this._initPromise??=(async()=>{let t=this._options,e=this._videoTrack,r=t.rotation??await e.getRotation(),n=t.flip??await e.getFlip(),a=await e.getSquarePixelWidth(),s=await e.getSquarePixelHeight(),[o,c]=r%180===0?[a,s]:[s,a],u=t.crop;u&&(u=wn(u,o,c));let[l,d]=u?[u.width,u.height]:[o,c],m=l/d;t.width!==void 0&&t.height===void 0?(l=t.width,d=Math.round(l/m)):t.width===void 0&&t.height!==void 0?(d=t.height,l=Math.round(d*m)):t.width!==void 0&&t.height!==void 0&&(l=t.width,d=t.height),this._width=l,this._height=d,this._rotation=r,this._flip=n,this._crop=u})()}_videoSampleToWrappedCanvas(t){let e=this._width,r=this._height,n=this._canvasPool[this._nextCanvasIndex],a=!1;n||(typeof document<"u"?(n=document.createElement("canvas"),n.width=e,n.height=r):n=new OffscreenCanvas(e,r),this._canvasPool.length>0&&(this._canvasPool[this._nextCanvasIndex]=n),a=!0),this._canvasPool.length>0&&(this._nextCanvasIndex=(this._nextCanvasIndex+1)%this._canvasPool.length);let s=n.getContext("2d",{alpha:this._alpha||yi()});g(s),t._drawWithFitAndMipmapping(n,s,{fit:this._fit,rotation:this._rotation,flip:this._flip,crop:this._crop,targetIsFresh:a,fillBlack:!this._alpha&&yi()});let o={canvas:n,timestamp:t.timestamp,duration:t.duration};return t.close(),o}async getCanvas(t,e){vr(t),await this._ensureInit();let r=await this._videoSampleSink.getSample(t,e);return r&&this._videoSampleToWrappedCanvas(r)}async*canvases(t,e,r){await this._ensureInit(),yield*zn(this._videoSampleSink.samples(t,e,r),n=>this._videoSampleToWrappedCanvas(n))}async*canvasesAtTimestamps(t,e){await this._ensureInit(),yield*zn(this._videoSampleSink.samplesAtTimestamps(t,e),r=>r&&this._videoSampleToWrappedCanvas(r))}},Fu=class extends Sa{constructor(e,r,n,a){super(e,r);this.decoder=null;this.customDecoder=null;this.customDecoderCallSerializer=new Or;this.customDecoderQueueSize=0;this.currentTimestamp=null;this.expectedFirstTimestamp=null;this.timestampOffset=0;let s=c=>{let u=c.timestamp;this.expectedFirstTimestamp!==null&&this.currentTimestamp===null&&(this.timestampOffset=this.expectedFirstTimestamp-u),u+=this.timestampOffset,(this.currentTimestamp===null||Math.abs(u-this.currentTimestamp)>=c.duration)&&(this.currentTimestamp=u);let l=this.currentTimestamp;if(this.currentTimestamp+=c.duration,c.numberOfFrames===0){c.close();return}let d=a.sampleRate;c.setTimestamp(Math.round(l*d)/d),e(c)},o=ri.find(c=>c.supports(n,a));if(o)this.customDecoder=new o,this.customDecoder.codec=n,this.customDecoder.config=a,this.customDecoder.onSample=c=>{if(!(c instanceof Ce))throw new TypeError("The argument passed to onSample must be an AudioSample.");s(c)},this.customDecoder.onError=c=>{r(c)},this.customDecoderCallSerializer.call(()=>this.customDecoder.init()).catch(c=>r(c));else{let c=new Error("Decoding error").stack;this.decoder=new AudioDecoder({output:u=>{try{s(new Ce(u))}catch(l){this.onError(l)}},error:u=>{u.stack=c,this.onError(u)}}),this.decoder.configure(a)}}getDecodeQueueSize(){return this.customDecoder?this.customDecoderQueueSize:(g(this.decoder),this.decoder.decodeQueueSize)}decode(e){this.customDecoder?(this.customDecoderQueueSize++,this.customDecoderCallSerializer.call(()=>this.customDecoder.decode(e)).catch(r=>this.onError(r)).finally(()=>this.customDecoderQueueSize--)):(g(this.decoder),this.expectedFirstTimestamp??=e.timestamp,this.decoder.decode(e.toEncodedAudioChunk()))}async flush(){this.customDecoder?await this.customDecoderCallSerializer.call(()=>this.customDecoder.flush()):(g(this.decoder),await this.decoder.flush()),this.currentTimestamp=null,this.expectedFirstTimestamp=null,this.timestampOffset=0}close(){this.customDecoder?this.customDecoderCallSerializer.call(()=>this.customDecoder.close()):(g(this.decoder),this.decoder.state!=="closed"&&this.decoder.close())}},Mu=class extends Sa{constructor(e,r,n){super(e,r);this.decoderConfig=n;this.currentTimestamp=null;g(ae.includes(n.codec)),this.codec=n.codec;let{dataType:a,sampleSize:s,littleEndian:o}=Re(this.codec);switch(this.inputSampleSize=s,s){case 1:a==="unsigned"?this.readInputValue=(c,u)=>c.getUint8(u)-2**7:a==="signed"?this.readInputValue=(c,u)=>c.getInt8(u):a==="ulaw"?this.readInputValue=(c,u)=>Lm(c.getUint8(u)):a==="alaw"?this.readInputValue=(c,u)=>Hm(c.getUint8(u)):g(!1);break;case 2:a==="unsigned"?this.readInputValue=(c,u)=>c.getUint16(u,o)-2**15:a==="signed"?this.readInputValue=(c,u)=>c.getInt16(u,o):g(!1);break;case 3:a==="unsigned"?this.readInputValue=(c,u)=>gi(c,u,o)-2**23:a==="signed"?this.readInputValue=(c,u)=>Fl(c,u,o):g(!1);break;case 4:a==="unsigned"?this.readInputValue=(c,u)=>c.getUint32(u,o)-2**31:a==="signed"?this.readInputValue=(c,u)=>c.getInt32(u,o):a==="float"?this.readInputValue=(c,u)=>c.getFloat32(u,o):g(!1);break;case 8:a==="float"?this.readInputValue=(c,u)=>c.getFloat64(u,o):g(!1);break;default:ne(s),g(!1)}switch(s){case 1:a==="ulaw"||a==="alaw"?(this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(c,u,l)=>c.setInt16(u,l,!0)):(this.outputSampleSize=1,this.outputFormat="u8",this.writeOutputValue=(c,u,l)=>c.setUint8(u,l+2**7));break;case 2:this.outputSampleSize=2,this.outputFormat="s16",this.writeOutputValue=(c,u,l)=>c.setInt16(u,l,!0);break;case 3:this.outputSampleSize=4,this.outputFormat="s32",this.writeOutputValue=(c,u,l)=>c.setInt32(u,l<<8,!0);break;case 4:this.outputSampleSize=4,a==="float"?(this.outputFormat="f32",this.writeOutputValue=(c,u,l)=>c.setFloat32(u,l,!0)):(this.outputFormat="s32",this.writeOutputValue=(c,u,l)=>c.setInt32(u,l,!0));break;case 8:this.outputSampleSize=4,this.outputFormat="f32",this.writeOutputValue=(c,u,l)=>c.setFloat32(u,l,!0);break;default:ne(s),g(!1)}}getDecodeQueueSize(){return 0}decode(e){let r=N(e.data),n=e.byteLength/this.decoderConfig.numberOfChannels/this.inputSampleSize,a=n*this.decoderConfig.numberOfChannels*this.outputSampleSize,s=new ArrayBuffer(a),o=new DataView(s);for(let d=0;d=c)&&(this.currentTimestamp=e.timestamp);let u=this.currentTimestamp;this.currentTimestamp+=c;let l=new Ce({format:this.outputFormat,data:s,numberOfChannels:this.decoderConfig.numberOfChannels,sampleRate:this.decoderConfig.sampleRate,numberOfFrames:n,timestamp:u});this.onSample(l)}async flush(){}close(){}},xn=class extends Aa{constructor(t){if(!(t instanceof Rr))throw new TypeError("audioTrack must be an InputAudioTrack.");super(),this._track=t}async _createDecoder(t,e){if(!await this._track.canDecode())throw typeof AudioDecoder>"u"?new Error(Gi("AudioDecoder")):new Error("This audio track cannot be decoded in this environment. Make sure to check decodability before using a track.");let r=await this._track.getCodec(),n=await this._track.getDecoderConfig();return g(r&&n),ae.includes(n.codec)?new Mu(t,e,n):new Fu(t,e,r,n)}_createPacketSink(){return new ft(this._track)}async getSample(t,e={}){vr(t);for await(let r of this.mediaSamplesAtTimestamps([t],e))return r;throw new Error("Internal error: Iterator returned nothing.")}samples(t,e,r={}){return this.mediaSamplesInRange(t,e,r)}samplesAtTimestamps(t,e={}){return this.mediaSamplesAtTimestamps(t,e)}},Bu=class{constructor(t){if(!(t instanceof Rr))throw new TypeError("audioTrack must be an InputAudioTrack.");this._audioSampleSink=new xn(t)}_audioSampleToWrappedArrayBuffer(t){let e={buffer:t.toAudioBuffer(),timestamp:t.timestamp,duration:t.duration};return t.close(),e}async getBuffer(t,e){vr(t);let r=await this._audioSampleSink.getSample(t,e);return r&&this._audioSampleToWrappedArrayBuffer(r)}buffers(t,e,r){return zn(this._audioSampleSink.samples(t,e,r),n=>this._audioSampleToWrappedArrayBuffer(n))}buffersAtTimestamps(t,e){return zn(this._audioSampleSink.samplesAtTimestamps(t,e),r=>r&&this._audioSampleToWrappedArrayBuffer(r))}};var Oi=class i{constructor(t,e){this.input=t,this._backing=e}isVideoTrack(){return this instanceof _r}isAudioTrack(){return this instanceof Rr}get id(){return this._backing.getId()}get number(){return this._backing.getNumber()}async getInternalCodecId(){return this._backing.getInternalCodecId()}get internalCodecId(){return ge(this._backing.getInternalCodecId(),"internalCodecId","getInternalCodecId")}async getLanguageCode(){return this._backing.getLanguageCode()}get languageCode(){return ge(this._backing.getLanguageCode(),"languageCode","getLanguageCode")}async getName(){return this._backing.getName()}get name(){return ge(this._backing.getName(),"name","getName")}async getTimeResolution(){return this._backing.getTimeResolution()}get timeResolution(){return ge(this._backing.getTimeResolution(),"timeResolution","getTimeResolution")}async isRelativeToUnixEpoch(){return this._backing.isRelativeToUnixEpoch()}async getUnixTimeForTimestamp(t){return this._backing.getUnixTimeForTimestamp(t)}async hasUnixTimeMapping(){return await this._backing.getUnixTimeForTimestamp(await this.getFirstTimestamp())!==null}async getDisposition(){return this._backing.getDisposition()}get disposition(){return ge(this._backing.getDisposition(),"disposition","getDisposition")}async getBitrate(){return this._backing.getBitrate()}async getAverageBitrate(){return this._backing.getAverageBitrate()}async getFirstTimestamp(){return(await this._backing.getFirstPacket({metadataOnly:!0}))?.timestamp??0}async computeDuration(t){let e=await this._backing.getPacket(1/0,{metadataOnly:!0,...t}),r=(e?.timestamp??0)+(e?.duration??0);return qt(r,await this.getTimeResolution())}async getDurationFromMetadata(t={}){return this._backing.getDurationFromMetadata(t)}async computePacketStats(t=1/0,e){let r=new ft(this),n=1/0,a=-1/0,s=0,o=0;for await(let c of r.packets(void 0,void 0,{metadataOnly:!0,...e})){if(s>=t&&c.timestamp>=a)break;n=Math.min(n,c.timestamp),a=Math.max(a,c.timestamp+c.duration),s++,o+=c.byteLength}return{packetCount:s,averagePacketRate:s?Number((s/(a-n)).toPrecision(16)):0,averageBitrate:s?Number((8*o/(a-n)).toPrecision(16)):0}}async isLive(){return await this._backing.getLiveRefreshInterval()!==null}async getLiveRefreshInterval(){return this._backing.getLiveRefreshInterval()}canBePairedWith(t){if(!(t instanceof i))throw new TypeError("other must be an InputTrack.");return this.input!==t.input||this===t?!1:(this._backing.getPairingMask()&t._backing.getPairingMask())!==0n}async getPairableTracks(t){return this.input.getTracks(si({filter:e=>e.canBePairedWith(this)},t))}async getPairableVideoTracks(t){return this.input.getVideoTracks(si({filter:e=>e.canBePairedWith(this)},t))}async getPairableAudioTracks(t){return this.input.getAudioTracks(si({filter:e=>e.canBePairedWith(this)},t))}async getPrimaryPairableVideoTrack(t){return this.input.getPrimaryVideoTrack(si({filter:e=>e.canBePairedWith(this)},t))}async getPrimaryPairableAudioTrack(t){return this.input.getPrimaryAudioTrack(si({filter:e=>e.canBePairedWith(this)},t))}async hasPairableTrack(t){t&&=Ou(t);let e=await this.input.getTracks();for(let r of e)if(this.canBePairedWith(r)&&(!t||await t(r)))return!0;return!1}hasPairableVideoTrack(t){return t&&=Ou(t),this.hasPairableTrack(async e=>e.isVideoTrack()&&(!t||await t(e)))}hasPairableAudioTrack(t){return t&&=Ou(t),this.hasPairableTrack(async e=>e.isAudioTrack()&&(!t||await t(e)))}},ge=(i,t,e)=>{if(_(i))throw new Error(`'${t}' is deprecated and not available synchronously for this track. Use the preferred '${e}()' instead.`);return i},Ou=i=>{if(i!==void 0&&typeof i!="function")throw new TypeError("predicate, when provided, must be a function.");return i?t=>{let e=n=>{if(typeof n!="boolean")throw new TypeError("predicate must return or resolve to a boolean value.");return n},r=i(t);return _(r)?r.then(e):e(r)}:void 0},_r=class extends Oi{constructor(e,r){super(e,r);this._pixelAspectRatioCache=null}get type(){return"video"}async getCodec(){return this._backing.getCodec()}get codec(){return ge(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await this._backing.getHasOnlyKeyPackets?.()??await this._backing.getCodec()==="prores"}async getCodedWidth(){return this._backing.getCodedWidth()}get codedWidth(){return ge(this._backing.getCodedWidth(),"codedWidth","getCodedWidth")}async getCodedHeight(){return this._backing.getCodedHeight()}get codedHeight(){return ge(this._backing.getCodedHeight(),"codedHeight","getCodedHeight")}async getTransformationMatrix(){return this._backing.getTransformationMatrix()}async getRotation(){return fi(await this._backing.getTransformationMatrix())}get rotation(){return fi(ge(this._backing.getTransformationMatrix(),"rotation","getRotation"))}async getFlip(){return uc(await this._backing.getTransformationMatrix())}async getSquarePixelWidth(){return this._backing.getSquarePixelWidth()}get squarePixelWidth(){return ge(this._backing.getSquarePixelWidth(),"squarePixelWidth","getSquarePixelWidth")}async getSquarePixelHeight(){return this._backing.getSquarePixelHeight()}get squarePixelHeight(){return ge(this._backing.getSquarePixelHeight(),"squarePixelHeight","getSquarePixelHeight")}async getPixelAspectRatio(){return this._pixelAspectRatioCache??=Gt({num:await this.getSquarePixelWidth()*await this.getCodedHeight(),den:await this.getSquarePixelHeight()*await this.getCodedWidth()})}get pixelAspectRatio(){return this._pixelAspectRatioCache??=Gt({num:ge(this._backing.getSquarePixelWidth(),"pixelAspectRatio","getPixelAspectRatio")*ge(this._backing.getCodedHeight(),"pixelAspectRatio","getPixelAspectRatio"),den:ge(this._backing.getSquarePixelHeight(),"pixelAspectRatio","getPixelAspectRatio")*ge(this._backing.getCodedWidth(),"pixelAspectRatio","getPixelAspectRatio")})}async getDisplayWidth(){let e=await this._backing.getMetadataDisplayWidth?.();return e??(await this.getRotation()%180===0?this.getSquarePixelWidth():this.getSquarePixelHeight())}get displayWidth(){let e=this._backing.getMetadataDisplayWidth?.();if(e!==void 0){let a=ge(e,"displayWidth","getDisplayWidth");if(a!==null)return a}let n=fi(ge(this._backing.getTransformationMatrix(),"displayWidth","getDisplayWidth"))%180===0?this._backing.getSquarePixelWidth():this._backing.getSquarePixelHeight();return ge(n,"displayWidth","getDisplayWidth")}async getDisplayHeight(){let e=await this._backing.getMetadataDisplayHeight?.();return e??(await this.getRotation()%180===0?this.getSquarePixelHeight():this.getSquarePixelWidth())}get displayHeight(){let e=this._backing.getMetadataDisplayHeight?.();if(e!==void 0){let a=ge(e,"displayHeight","getDisplayHeight");if(a!==null)return a}let n=fi(ge(this._backing.getTransformationMatrix(),"displayHeight","getDisplayHeight"))%180===0?this._backing.getSquarePixelHeight():this._backing.getSquarePixelWidth();return ge(n,"displayHeight","getDisplayHeight")}async getColorSpace(){return this._backing.getColorSpace()}async hasHighDynamicRange(){let e=await this._backing.getColorSpace();return e.primaries==="bt2020"||e.primaries==="smpte432"||e.transfer==="pq"||e.transfer==="hlg"||e.matrix==="bt2020-ncl"}async canBeTransparent(){return this._backing.canBeTransparent()}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){let e=await this._backing.getMetadataCodecParameterString?.();return e??(await this._backing.getDecoderConfig())?.codec??null}async canDecode(){try{let e=await this._backing.getDecoderConfig();if(!e)return!1;let r=await this._backing.getCodec();return g(r!==null),ti.some(a=>a.supports(r,e))?!0:typeof VideoDecoder>"u"?!1:(await VideoDecoder.isConfigSupported(e)).supported===!0}catch(e){return z._error("Error during decodability check:",e),!1}}async determinePacketType(e){if(!(e instanceof X))throw new TypeError("packet must be an EncodedPacket.");if(e.isMetadataOnly)throw new TypeError("packet must not be metadata-only to determine its type.");let r=await this.getCodec();if(r===null)return null;let n=await this.getDecoderConfig();return g(n),qr(r,n,e.data)}async computeFrameRateMetrics(e={}){if(!e||typeof e!="object")throw new TypeError("options must be an object.");if(e.targetPacketCount!==void 0&&(!ve(e.targetPacketCount)||e.targetPacketCount<0))throw new TypeError("options.targetPacketCount must be a non-negative number.");let r=await this.getTimeResolution(),n=e.targetPacketCount??256,a=new ft(this),s=[],o=-1/0,c=0;for await(let E of a.packets(void 0,void 0,{metadataOnly:!0})){if(s.length>=n&&E.timestamp>=o)break;s.push(E.timestamp),o=Math.max(o,E.timestamp),c++}let u=new Float64Array(s.length);for(let E=0;EE-v),A=T-1>>1,x=T>>1,C=0,P=0,S=0;for(let E of w)if(S+=b.get(E),C===0&&S>A&&(C=E),S>x){P=E;break}let I=(f/C+f/P)/2;return{underlyingFrameRate:m,bestGuessFrameRate:m!==null?m:fh(I),minFrameRate:f/y,maxFrameRate:f/h,averageFrameRate:f*T/k,medianFrameRate:I,frameRateIsConstant:m!==null&&h===1&&y===1,probedPacketCount:c}}},Rr=class extends Oi{constructor(t,e){super(t,e)}get type(){return"audio"}async getCodec(){return this._backing.getCodec()}get codec(){return ge(this._backing.getCodec(),"codec","getCodec")}async hasOnlyKeyPackets(){return await this._backing.getHasOnlyKeyPackets?.()??!0}async getNumberOfChannels(){return this._backing.getNumberOfChannels()}get numberOfChannels(){return ge(this._backing.getNumberOfChannels(),"numberOfChannels","getNumberOfChannels")}async getSampleRate(){return this._backing.getSampleRate()}get sampleRate(){return ge(this._backing.getSampleRate(),"sampleRate","getSampleRate")}async getDecoderConfig(){return this._backing.getDecoderConfig()}async getCodecParameterString(){let t=await this._backing.getMetadataCodecParameterString?.();return t??(await this._backing.getDecoderConfig())?.codec??null}async canDecode(){try{let t=await this._backing.getDecoderConfig();if(!t)return!1;let e=await this._backing.getCodec();return g(e!==null),ri.some(r=>r.supports(e,t))||ae.includes(t.codec)?!0:typeof AudioDecoder>"u"?!1:(await AudioDecoder.isConfigSupported(t)).supported===!0}catch(t){return z._error("Error during decodability check:",t),!1}}async determinePacketType(t){if(!(t instanceof X))throw new TypeError("packet must be an EncodedPacket.");return await this.getCodec()===null?null:"key"}},dh=i=>i??1/0,Bo=i=>-(i??-1/0),Di=i=>-i,Cn=i=>{if(typeof i!="object"||!i)throw new TypeError("query must be an object.");if(i.filter!==void 0&&typeof i.filter!="function")throw new TypeError("query.filter, when provided, must be a function.");if(i.sortBy!==void 0&&typeof i.sortBy!="function")throw new TypeError("query.sortBy, when provided, must be a function.");return{filter:i.filter?t=>{let e=n=>{if(typeof n!="boolean")throw new TypeError("query.filter must return or resolve to a boolean.");return n},r=i.filter(t);return _(r)?r.then(e):e(r)}:void 0,sortBy:i.sortBy?t=>{let e=n=>{if(typeof n!="number"&&(!Array.isArray(n)||!n.every(a=>typeof a=="number")))throw new TypeError("query.sortBy must return or resolve to a number or an array of numbers.");return n},r=i.sortBy(t);return _(r)?r.then(e):e(r)}:void 0}},si=(i,t)=>({filter:i?.filter||t?.filter?e=>{let r=i?.filter?.(e)??!0,n=a=>a===!1?!1:t?.filter?.(e)??!0;return _(r)?r.then(n):n(r)}:void 0,sortBy:i?.sortBy||t?.sortBy?e=>{let r=i?.sortBy?.(e)??[],n=t?.sortBy?.(e)??[],a=(s,o)=>[...Array.isArray(s)?s:[s],...Array.isArray(o)?o:[o]];return _(r)||_(n)?Promise.all([r,n]).then(([s,o])=>a(s,o)):a(r,n)}:void 0}),Oo=async(i,t)=>{let e=i;if(t?.filter){let s=i.map(c=>t.filter(c));if(s.some(c=>_(c))){let c=await Promise.all(s);e=i.filter((u,l)=>c[l])}else e=i.filter((c,u)=>s[u])}if(!t?.sortBy)return e;let r=e.map(s=>t.sortBy(s)),a=r.some(s=>_(s))?await Promise.all(r):r;return e.map((s,o)=>({track:s,sortValue:a[o]})).sort((s,o)=>{let c=Array.isArray(s.sortValue)?s.sortValue:[s.sortValue],u=Array.isArray(o.sortValue)?o.sortValue:[o.sortValue],l=Math.max(c.length,u.length);for(let d=0;ds.track)},mh=(i,t)=>{let n=1.000000001,a=1e3,s=[12,15,20,24e3/1001,24,25,3e4/1001,30,48,50,6e4/1001,60,100,12e4/1001,120,144,240];if(i.length<2)return null;let o=new Float64Array(i.length-1);for(let C=1;C0))return null;o[C-1]=P}let c=o.slice();c.sort();let u=c[Math.floor(c.length*.05)];for(let C=0;C<6;C++){let P=0,S=0;for(let E of o){let v=Math.max(1,Math.round(E/u));Math.abs(E-v*u)>=n||(P+=E,S+=v)}if(S===0)return null;let 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the init segment will be written to it.");let n=await this.output._getInitTarget(),a=new lr(n,!0);a.start(),this.initWriter=a,this.initBoxWriter=new Vi(a)}let r=this.output.tracks.some(n=>n.isVideoTrack()&&n.source._codec==="avc");{let n=this.initBoxWriter??this.boxWriter;if(g(n),this.formatOptions.onFtyp&&n.writer.startTrackingWrites(),n.writeBox(ef({isQuickTime:this.isQuickTime,holdsAvc:r,fragmented:this.isFragmented,cmaf:this.isCmaf})),this.formatOptions.onFtyp){let{data:a,start:s}=n.writer.stopTrackingWrites();this.formatOptions.onFtyp(a,s)}this.ftypSize=n.writer.getPos(),this.isCmaf&&await this.initWriter.flush()}if(this.fastStart!=="in-memory")if(this.fastStart==="reserve"){for(let n of this.output.tracks)if(n.metadata.maximumPacketCount===void 0)throw new Error("All tracks must specify maximumPacketCount in their metadata when using fastStart: 'reserve'.")}else this.isFragmented||(g(this.writer),g(this.boxWriter),this.formatOptions.onMdat&&this.writer.startTrackingWrites(),this.mdat=Pa(!0),this.boxWriter.writeBox(this.mdat));await this.writer?.flush();for(let n of this.output.tracks)n.isVideoTrack()&&n.metadata.decoderConfig?this.getVideoTrackData(n,n.metadata.primingPacket??null,{decoderConfig:n.metadata.decoderConfig}):n.isAudioTrack()&&n.metadata.decoderConfig&&this.getAudioTrackData(n,n.metadata.primingPacket??null,{decoderConfig:n.metadata.decoderConfig});e()}allTracksAreKnown(){for(let e of this.output.tracks)if(!e.source._closed&&!this.trackDatas.some(r=>r.track===e))return!1;return!0}async getMimeType(){await this.allTracksKnown.promise;let e=this.trackDatas.map(r=>r.type==="video"||r.type==="audio"?r.info.decoderConfig.codec:{webvtt:"wvtt"}[r.track.source._codec]);return Ts({isQuickTime:this.isQuickTime,hasVideo:this.trackDatas.some(r=>r.type==="video"),hasAudio:this.trackDatas.some(r=>r.type==="audio"),codecStrings:e})}getVideoTrackData(e,r,n){let a=this.trackDatas.find(p=>p.track===e);if(a)return a;tr(n,e.source._codec),g(n),g(n.decoderConfig);let s={...n.decoderConfig};g(s.codedWidth!==void 0),g(s.codedHeight!==void 0);let o=!1;if(e.source._codec==="avc"&&!s.description){if(!r)throw new Error("No AVC description provided; you must therefore provide a priming packet.");let p=Zt(r.data);if(!p)throw new Error("Couldn't extract an AVCDecoderConfigurationRecord from the AVC packet. 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Make sure the packets are in ADTS format (as specified in ISO 13818-7) when not providing a description, or provide a description (must be an AudioSpecificConfig as specified in ISO 14496-3) and ensure the packets are raw AAC data.");let l=kt[u.samplingFrequencyIndex],d=Xt[u.channelConfiguration];if(l===void 0||d===void 0)throw new Error("Invalid ADTS frame header.");s.description=$i({objectType:u.objectType,outputSampleRate:l,outputNumberOfChannels:d}),o=!0}if(!r){if(e.source._codec==="ac3"||e.source._codec==="eac3")throw new Error("AC-3/E-AC-3 require a priming packet.");if(e.source._codec==="dts")throw new Error("DTS requires a priming packet.")}let c={muxer:this,track:e,type:"audio",info:{numberOfChannels:n.decoderConfig.numberOfChannels,sampleRate:n.decoderConfig.sampleRate,decoderConfig:s,requiresPcmTransformation:!this.isFragmented&&ae.includes(e.source._codec),expectedNextPcmPacketTimestamp:null,requiresAdtsStripping:o,primingPacket:r},timescale:s.sampleRate,samples:[],sampleQueue:[],timestampProcessingQueue:[],timeToSampleTable:[],compositionTimeOffsetTable:[],lastTimescaleUnits:null,lastSample:null,startTimestampOffset:null,finalizedChunks:[],currentChunk:null,compactlyCodedChunkTable:[],closed:!1,avgBitrate:e.source._nominalBitrate??e.metadata.averageBitrate??0,maxBitrate:e.source._nominalBitrate??e.metadata.bitrate??0};return this.trackDatas.push(c),this.trackDatas.sort((u,l)=>u.track.id-l.track.id),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),c}getSubtitleTrackData(e,r){let n=this.trackDatas.find(s=>s.track===e);if(n)return n;gs(r),g(r),g(r.config);let a={muxer:this,track:e,type:"subtitle",info:{config:r.config},timescale:1e3,samples:[],sampleQueue:[],timestampProcessingQueue:[],timeToSampleTable:[],compositionTimeOffsetTable:[],lastTimescaleUnits:null,lastSample:null,startTimestampOffset:null,finalizedChunks:[],currentChunk:null,compactlyCodedChunkTable:[],closed:!1,avgBitrate:e.source._nominalBitrate??e.metadata.averageBitrate??0,maxBitrate:e.source._nominalBitrate??e.metadata.bitrate??0,lastCueEndTimestamp:null,cueQueue:[],nextSourceId:0,cueToSourceId:new WeakMap};return this.trackDatas.push(a),this.trackDatas.sort((s,o)=>s.track.id-o.track.id),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),a}async addEncodedVideoPacket(e,r,n){let a=await this.mutex.acquire();try{let s=this.getVideoTrackData(e,r,n),o=r.data;if(s.info.requiresAnnexBTransformation){let u=[...Lr(o)].map(l=>o.subarray(l.offset,l.offset+l.length));if(u.length===0)throw new Error("Failed to transform packet data. Make sure all packets are provided in Annex B format, as specified in ITU-T-REC-H.264 and ITU-T-REC-H.265.");o=Ja(u,4)}this.validateTimestamp(s.track,r.timestamp,r.type==="key");let c=this.createSampleForTrack(s,o,r.timestamp,r.duration,r.type);await this.registerSample(s,c)}finally{a()}}async addEncodedAudioPacket(e,r,n){let a=await this.mutex.acquire();try{let s=this.getAudioTrackData(e,r,n),o=r.data;if(s.info.requiresAdtsStripping){let d=et(xe.tempFromBytes(o));if(!d)throw new Error("Expected ADTS frame, didn't get one.");let m=d.crcCheck===null?Er:mt;o=o.subarray(m)}this.validateTimestamp(s.track,r.timestamp,r.type==="key");let c=r.timestamp,u=r.duration;if(s.info.requiresPcmTransformation){let m=Re(s.info.decoderConfig.codec).sampleSize*s.info.numberOfChannels;if(u=o.byteLength/m/s.info.sampleRate,s.info.expectedNextPcmPacketTimestamp!==null){let f=c-s.info.expectedNextPcmPacketTimestamp;if(f<.01)c=s.info.expectedNextPcmPacketTimestamp;else{let p=await this.padWithSilence(s,s.info.expectedNextPcmPacketTimestamp,f);c=s.info.expectedNextPcmPacketTimestamp+p}}s.info.expectedNextPcmPacketTimestamp=c+u}let l=this.createSampleForTrack(s,o,c,u,r.type);await this.registerSample(s,l)}finally{a()}}async padWithSilence(e,r,n){let a=de(n,e.timescale);if(n=a/e.timescale,a>0){let{sampleSize:s,silentValue:o}=Re(e.info.decoderConfig.codec),c=a*e.info.numberOfChannels,u=new Uint8Array(s*c).fill(o),l=this.createSampleForTrack(e,new Uint8Array(u.buffer),r,n,"key");await this.registerSample(e,l)}return n}async addSubtitleCue(e,r,n){let a=await this.mutex.acquire();try{let s=this.getSubtitleTrackData(e,n);this.validateTimestamp(s.track,r.timestamp,!0),e.source._codec==="webvtt"&&(s.cueQueue.push(r),await this.processWebVTTCues(s,r.timestamp))}finally{a()}}async processWebVTTCues(e,r){for(;e.cueQueue.length>0;){e.lastCueEndTimestamp??=Math.min(0,e.cueQueue[0].timestamp);let n=new Set([]);for(let l of e.cueQueue)g(l.timestamp<=r),g(e.lastCueEndTimestamp<=l.timestamp+l.duration),n.add(Math.max(l.timestamp,e.lastCueEndTimestamp)),n.add(l.timestamp+l.duration);let a=[...n].sort((l,d)=>l-d),s=a[0],o=a[1]??s;if(r=o)break;En.lastIndex=0;let m=En.test(d.text),f=d.timestamp+d.duration,p=e.cueToSourceId.get(d);if(p===void 0&&oa.timestamp).sort((a,s)=>a-s);this.isFragmented?e.startTimestampOffset??=Math.min(n[0],0):e.startTimestampOffset??=n[0];for(let a=0;a=0),e.lastTimescaleUnits+=l,e.lastSample.timescaleUnitsToNextSample=l,!this.isFragmented){let d=Z(e.timeToSampleTable);if(g(d),d.sampleCount===1){d.sampleDelta=l;let f=e.timeToSampleTable[e.timeToSampleTable.length-2];f&&f.sampleDelta===l&&(f.sampleCount++,e.timeToSampleTable.pop(),d=f)}else d.sampleDelta!==l&&(d.sampleCount--,e.timeToSampleTable.push(d={sampleCount:1,sampleDelta:l}));d.sampleDelta===c?d.sampleCount++:e.timeToSampleTable.push({sampleCount:1,sampleDelta:c});let m=Z(e.compositionTimeOffsetTable);g(m),m.sampleCompositionTimeOffset===o?m.sampleCount++:e.compositionTimeOffsetTable.push({sampleCount:1,sampleCompositionTimeOffset:o})}}else e.lastTimescaleUnits=de(s.decodeTimestamp,e.timescale,!1),this.isFragmented||(e.timeToSampleTable.push({sampleCount:1,sampleDelta:c}),e.compositionTimeOffsetTable.push({sampleCount:1,sampleCompositionTimeOffset:o}));e.lastSample=s}if(e.timestampProcessingQueue.length=0,g(e.lastSample),g(e.lastTimescaleUnits!==null),r!==void 0&&e.lastSample.timescaleUnitsToNextSample===0){g(r.type==="key");let a=de(r.timestamp,e.timescale,!1),s=Math.round(a-e.lastTimescaleUnits);e.lastSample.timescaleUnitsToNextSample=s}}async registerSample(e,r){r.type==="key"&&this.processTimestamps(e,r),e.timestampProcessingQueue.push(r),this.isFragmented?(e.sampleQueue.push(r),await this.interleaveSamples()):this.fastStart==="reserve"?await this.registerSampleFastStartReserve(e,r):await this.addSampleToTrack(e,r)}async addSampleToTrack(e,r){if(!this.isFragmented&&(e.samples.push(r),this.fastStart==="reserve")){let a=e.track.metadata.maximumPacketCount;if(g(a!==void 0),e.samples.length>a)throw new Error(`Track #${e.track.id} has already reached the maximum packet count (${a}). Either add less packets or increase the maximum packet count.`)}let n=!1;if(!e.currentChunk)n=!0;else{e.currentChunk.startTimestamp=Math.min(e.currentChunk.startTimestamp,r.timestamp);let a=r.timestamp-e.currentChunk.startTimestamp;if(this.isFragmented){let s=this.trackDatas.every(o=>{if(e===o)return r.type==="key";let c=o.sampleQueue[0];return c?c.type==="key":o.closed});a>=this.minimumFragmentDuration&&s&&r.timestamp>this.maxWrittenTimestamp&&(n=!0,await this.finalizeFragment())}else n=a>=.5}n&&(e.currentChunk&&await this.finalizeCurrentChunk(e),e.currentChunk={startTimestamp:r.timestamp,samples:[],offset:null,moofOffset:null,trafIndex:null}),g(e.currentChunk),e.currentChunk.samples.push(r),this.isFragmented&&(this.maxWrittenTimestamp=Math.max(this.maxWrittenTimestamp,r.timestamp),this.maxWrittenEndTimestamp=Math.max(this.maxWrittenEndTimestamp,r.timestamp+r.duration),this.minWrittenTimestamp=Math.min(this.minWrittenTimestamp,r.timestamp))}async finalizeCurrentChunk(e){if(g(!this.isFragmented),g(this.writer),!e.currentChunk)return;e.finalizedChunks.push(e.currentChunk),this.finalizedChunks.push(e.currentChunk);let r=e.currentChunk.samples.length;if(e.type==="audio"&&e.info.requiresPcmTransformation&&(r=e.currentChunk.samples.reduce((n,a)=>n+de(a.duration,e.timescale),0)),(e.compactlyCodedChunkTable.length===0||Z(e.compactlyCodedChunkTable).samplesPerChunk!==r)&&e.compactlyCodedChunkTable.push({firstChunk:e.finalizedChunks.length,samplesPerChunk:r}),this.fastStart==="in-memory"){e.currentChunk.offset=0;return}e.currentChunk.offset=this.writer.getPos();for(let n of e.currentChunk.samples)g(n.data),this.writer.write(n.data),n.data=null;await this.writer.flush()}async interleaveSamples(e=!1){if(g(this.isFragmented),!(!e&&!this.allTracksAreKnown()))e:for(;;){let r=null,n=1/0;for(let s of this.trackDatas){if(!e&&s.sampleQueue.length===0&&!s.closed)break e;s.sampleQueue.length>0&&s.sampleQueue[0].timestampp.currentChunk);if(r.length===0){e&&await this.writer.flush();return}let n=this.nextFragmentNumber++,a=Ku(n,r),s=this.writer.getPos(),o=s+this.boxWriter.measureBox(a),c=o+Mt,u=1/0;for(let p=0;p=2**32;if(d)for(let p of r)p.currentChunk.offset+=wr-Mt;this.formatOptions.onMoof&&this.writer.startTrackingWrites();let m=Ku(n,r);if(this.boxWriter.writeBox(m),this.formatOptions.onMoof){let{data:p,start:b}=this.writer.stopTrackingWrites();this.formatOptions.onMoof(p,b,u)}g(this.writer.getPos()===o),this.formatOptions.onMdat&&this.writer.startTrackingWrites();let f=Pa(d);f.size=l,this.boxWriter.writeBox(f),this.writer.seek(o+(d?wr:Mt));for(let p of r)for(let b of p.currentChunk.samples)this.writer.write(b.data),b.data=null;if(this.formatOptions.onMdat){let{data:p,start:b}=this.writer.stopTrackingWrites();this.formatOptions.onMdat(p,b)}for(let p of r)p.finalizedChunks.push(p.currentChunk),this.finalizedChunks.push(p.currentChunk),p.currentChunk=null;e&&await this.writer.flush()}async registerSampleFastStartReserve(e,r){this.allTracksAreKnown()?(this.mdat||await this.createFastStartReserveMdat(),await this.addSampleToTrack(e,r)):e.sampleQueue.push(r)}async createFastStartReserveMdat(){g(this.writer),g(this.boxWriter),this.ensureOneEnabledTrack();let e=vn(this),n=this.boxWriter.measureBox(e)+this.computeSampleTableSizeUpperBound()+4096;g(this.ftypSize!==null),this.writer.seek(this.ftypSize+n),this.formatOptions.onMdat&&this.writer.startTrackingWrites(),this.mdat=Pa(!0),this.boxWriter.writeBox(this.mdat);for(let a of this.trackDatas){for(let s of a.sampleQueue)await this.addSampleToTrack(a,s);a.sampleQueue.length=0}}computeSampleTableSizeUpperBound(){g(this.fastStart==="reserve");let e=0;for(let r of this.trackDatas){let n=r.track.metadata.maximumPacketCount;g(n!==void 0),e+=8*Math.ceil(2/3*n),e+=4*n,e+=8*Math.ceil(2/3*n),e+=12*Math.ceil(2/3*n),e+=4*n,e+=8*n}return e}async onTrackClose(e){let r=await this.mutex.acquire(),n=this.trackDatas.find(a=>a.track===e);n&&(n.closed=!0,n.type==="subtitle"&&e.source._codec==="webvtt"&&await this.processWebVTTCues(n,1/0),this.processTimestamps(n)),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),this.isFragmented&&await this.interleaveSamples(),r()}ensureOneEnabledTrack(){for(let e of["video","audio","subtitle"]){let r=this.trackDatas.filter(a=>a.type===e);if(r.length===0)continue;if(!r.some(a=>a.track.metadata.disposition?.default!==!1)){let a=r[0];a.track.metadata.disposition={...a.track.metadata.disposition,default:!0}}}}async forceFragmentFinalization(){g(this.isFragmented);let e=await this.mutex.acquire();try{for(let r of this.trackDatas)r.type==="subtitle"&&r.track.source._codec==="webvtt"&&await this.processWebVTTCues(r,1/0),this.processTimestamps(r);await this.interleaveSamples(!0),await this.finalizeFragment()}finally{e()}}async finalize(){let e=await this.mutex.acquire();this.allTracksKnown.resolve(),this.ensureOneEnabledTrack(),!this.mdat&&this.fastStart==="reserve"&&await this.createFastStartReserveMdat();for(let r of this.trackDatas)r.closed=!0,r.type==="subtitle"&&r.track.source._codec==="webvtt"&&await this.processWebVTTCues(r,1/0),this.processTimestamps(r);if(this.isFragmented)await this.interleaveSamples(!0),await this.finalizeFragment(!1);else for(let r of this.trackDatas){await this.finalizeCurrentChunk(r);let n=Ui(r);if(n>0){let c=0;for(let u of r.samples)c+=u.size;r.avgBitrate=Math.round(8*c/n)}else r.avgBitrate=0;let a=0,s=0,o=0;for(let c=0;c=1;)s-=r.samples[a].size,a++;o=Math.max(o,s)}if(r.maxBitrate=8*o,r.startTimestampOffset!==null)for(let c=0;c=2**32&&(this.mdat.largeSize=!0)}this.formatOptions.onMoov&&this.writer.startTrackingWrites();let n=vn(this);if(this.boxWriter.writeBox(n),this.formatOptions.onMoov){let{data:a,start:s}=this.writer.stopTrackingWrites();this.formatOptions.onMoov(a,s)}this.formatOptions.onMdat&&this.writer.startTrackingWrites(),this.mdat.size=r,this.boxWriter.writeBox(this.mdat);for(let a of this.finalizedChunks)for(let s of a.samples)g(s.data),this.writer.write(s.data),s.data=null;if(this.formatOptions.onMdat){let{data:a,start:s}=this.writer.stopTrackingWrites();this.formatOptions.onMdat(a,s)}}else if(this.isFragmented)if(this.isCmaf){let r=this.segmentHeaderSize!==null?this.writer.getPos()-this.segmentHeaderSize:0;this.writer.seek(0),this.boxWriter.writeBox(Lu()),this.boxWriter.writeBox(Wu(this,r))}else{let r=this.writer.getPos(),n=nf(this.trackDatas);this.boxWriter.writeBox(n);let a=this.writer.getPos()-r;this.writer.seek(this.writer.getPos()-4),this.boxWriter.writeU32(a)}else{g(this.mdat);let r=this.boxWriter.offsets.get(this.mdat);g(r!==void 0);let n=this.writer.getPos()-r;if(this.mdat.size=n,this.mdat.largeSize=n>=2**32,this.boxWriter.patchBox(this.mdat),this.formatOptions.onMdat){let{data:s,start:o}=this.writer.stopTrackingWrites();this.formatOptions.onMdat(s,o)}let a=vn(this);if(this.fastStart==="reserve"){g(this.ftypSize!==null),this.writer.seek(this.ftypSize),this.formatOptions.onMoov&&this.writer.startTrackingWrites(),this.boxWriter.writeBox(a);let s=this.boxWriter.offsets.get(this.mdat)-this.writer.getPos();this.boxWriter.writeBox(tf(s))}else this.formatOptions.onMoov&&this.writer.startTrackingWrites(),this.boxWriter.writeBox(a);if(this.formatOptions.onMoov){let{data:s,start:o}=this.writer.stopTrackingWrites();this.formatOptions.onMoov(s,o)}}e()}};var Eg=-(2**15),vg=2**15-1,pf=6,hf=5,_g={video:1,audio:2,subtitle:17},Ho=class extends Pe{constructor(e,r){super(e);this.trackDatas=[];this.allTracksKnown=J();this.segment=null;this.segmentInfo=null;this.seekHead=null;this.tracksElement=null;this.tagsElement=null;this.attachmentsElement=null;this.segmentDuration=null;this.cues=null;this.currentCluster=null;this.currentClusterStartMsTimestamp=null;this.currentClusterMaxMsTimestamp=null;this.trackDatasInCurrentCluster=new Map;this.startTimestamp=1/0;this.endTimestamp=-1/0;this.warnedAboutTooNegativeTimestamp=!1;this.format=r}async start(){let e=await this.mutex.acquire();this.writer=await this.output._getRootWriter(!!this.format._options.appendOnly),this.ebmlWriter=new _s(this.writer),this.writeEBMLHeader(),this.createSegmentInfo(),this.createCues(),await this.writer.flush();for(let r of this.output.tracks)r.isVideoTrack()&&r.metadata.decoderConfig?this.getVideoTrackData(r,r.metadata.primingPacket??null,{decoderConfig:r.metadata.decoderConfig}):r.isAudioTrack()&&r.metadata.decoderConfig&&this.getAudioTrackData(r,r.metadata.primingPacket??null,{decoderConfig:r.metadata.decoderConfig});e()}writeEBMLHeader(){this.format._options.onEbmlHeader&&this.writer.startTrackingWrites();let e={id:440786851,data:[{id:17030,data:1},{id:17143,data:1},{id:17138,data:4},{id:17139,data:8},{id:17026,data:this.format instanceof Li?"webm":"matroska"},{id:17031,data:4},{id:17029,data:2}]};if(this.ebmlWriter.writeEBML(e),this.format._options.onEbmlHeader){let{data:r,start:n}=this.writer.stopTrackingWrites();this.format._options.onEbmlHeader(r,n)}}maybeCreateSeekHead(e){if(this.format._options.appendOnly)return;let r=new Uint8Array([28,83,187,107]),n=new Uint8Array([21,73,169,102]),a=new Uint8Array([22,84,174,107]),s=new Uint8Array([25,65,164,105]),o=new Uint8Array([18,84,195,103]),c={id:290298740,data:[{id:19899,data:[{id:21419,data:n},{id:21420,size:5,data:e?this.ebmlWriter.offsets.get(this.segmentInfo)-this.segmentDataOffset:0}]},{id:19899,data:[{id:21419,data:a},{id:21420,size:5,data:e?this.ebmlWriter.offsets.get(this.tracksElement)-this.segmentDataOffset:0}]},this.attachmentsElement?{id:19899,data:[{id:21419,data:s},{id:21420,size:5,data:e?this.ebmlWriter.offsets.get(this.attachmentsElement)-this.segmentDataOffset:0}]}:null,this.tagsElement?{id:19899,data:[{id:21419,data:o},{id:21420,size:5,data:e?this.ebmlWriter.offsets.get(this.tagsElement)-this.segmentDataOffset:0}]}:null,{id:19899,data:[{id:21419,data:r},{id:21420,size:5,data:e?this.ebmlWriter.offsets.get(this.cues)-this.segmentDataOffset:0}]}]};this.seekHead=c}createSegmentInfo(){let e={id:17545,data:new sn(0)};this.segmentDuration=e;let r={id:357149030,data:[{id:2807729,data:1e6},{id:19840,data:yr},{id:22337,data:yr},this.format._options.appendOnly?null:e]};this.segmentInfo=r}createTracks(){let e={id:374648427,data:[]};this.tracksElement=e;for(let r of this.trackDatas){let n=Ve[r.track.source._codec];g(n),r.type==="audio"&&r.track.source._codec==="dts"&&(r.info.decoderConfig.codec==="dtse"?n="A_DTS/EXPRESS":r.info.decoderConfig.codec==="dtsl"&&(n="A_DTS/LOSSLESS"));let a=0;if(r.type==="audio"&&r.track.source._codec==="opus"){a=1e6*80;let s=r.info.decoderConfig.description;if(s){let o=$(s),c=Hr(o);a=Math.round(1e9*(c.preSkip/Ft))}}e.data.push({id:174,data:[{id:215,data:r.track.id},{id:29637,data:r.track.id},{id:131,data:_g[r.type]},r.track.metadata.disposition?.default===!1?{id:136,data:0}:null,r.track.metadata.disposition?.forced?{id:21930,data:1}:null,r.track.metadata.disposition?.hearingImpaired?{id:21931,data:1}:null,r.track.metadata.disposition?.visuallyImpaired?{id:21932,data:1}:null,r.track.metadata.disposition?.original?{id:21934,data:1}:null,r.track.metadata.disposition?.commentary?{id:21935,data:1}:null,{id:156,data:0},{id:2274716,data:r.track.metadata.languageCode??se},{id:134,data:n},r.codecPrivate?{id:25506,data:$(r.codecPrivate)}:null,a>0?{id:22203,data:a}:null,r.track.metadata.name!==void 0?{id:21358,data:new Vt(r.track.metadata.name)}:null,r.type==="video"?this.videoSpecificTrackInfo(r):null,r.type==="audio"?this.audioSpecificTrackInfo(r):null,r.type==="subtitle"?this.subtitleSpecificTrackInfo(r):null]})}}videoSpecificTrackInfo(e){let{frameRate:r,transformationMatrix:n}=e.track.metadata,a=[r?{id:2352003,data:1e9/r}:null],s,o,c;if(n){s=fi(n);let b=Lt(qi(-s),n);o=Math.sign(b[0]),c=Math.sign(b[4]),c===-1&&(c=1,o=-o,s=mr(s+180))}else s=e.track.metadata.rotation??0,o=e.track.metadata.flip?-1:1,c=1;let u=s?mr(o===-1?s:-s):0,l=Math.round(Math.acos(o)*Oa),d=Math.round(Math.acos(c)*Oa),m=!!e.info.aspectRatio&&e.info.aspectRatio.num*e.info.height!==e.info.aspectRatio.den*e.info.width,f=e.info.decoderConfig.colorSpace,p={id:224,data:[{id:176,data:e.info.width},{id:186,data:e.info.height},m?{id:21680,data:e.info.aspectRatio.num}:null,m?{id:21690,data:e.info.aspectRatio.den}:null,m?{id:21682,data:3}:null,e.info.alphaMode?{id:21440,data:1}:null,za(f)?null:{id:21936,data:[{id:21937,data:f?.matrix!=null?Et[f.matrix]:2},{id:21946,data:f?.transfer!=null?It[f.transfer]:2},{id:21947,data:f?.primaries!=null?Pt[f.primaries]:2},{id:21945,data:f?.fullRange!=null?f.fullRange?2:1:0}]},u||l||d?{id:30320,data:[{id:30321,data:0},l?{id:30323,data:new Yr(l)}:null,d?{id:30324,data:new Yr(d)}:null,u?{id:30325,data:new Yr((u+180)%360-180)}:null]}:null]};return a.push(p),a}audioSpecificTrackInfo(e){let r=ae.includes(e.track.source._codec)?Re(e.track.source._codec):null;return[{id:225,data:[{id:181,data:new Yr(e.info.sampleRate)},{id:159,data:e.info.numberOfChannels},r?{id:25188,data:8*r.sampleSize}:null]}]}subtitleSpecificTrackInfo(e){return[]}maybeCreateTags(){let e=[],r=(s,o)=>{e.push({id:26568,data:[{id:17827,data:new Vt(s)},typeof o=="string"?{id:17543,data:new Vt(o)}:{id:17541,data:o}]})},n=this.output._metadataTags,a=new Set;for(let{key:s,value:o}of vt(n))switch(s){case"title":r("TITLE",o),a.add("TITLE");break;case"description":r("DESCRIPTION",o),a.add("DESCRIPTION");break;case"artist":r("ARTIST",o),a.add("ARTIST");break;case"album":r("ALBUM",o),a.add("ALBUM");break;case"albumArtist":r("ALBUM_ARTIST",o),a.add("ALBUM_ARTIST");break;case"genre":r("GENRE",o),a.add("GENRE");break;case"beatsPerMinute":r("BPM",o.toString()),a.add("BPM");break;case"comment":r("COMMENT",o),a.add("COMMENT");break;case"lyrics":r("LYRICS",o),a.add("LYRICS");break;case"date":r("DATE",o.toISOString().slice(0,10)),a.add("DATE");break;case"trackNumber":{let c=n.tracksTotal!==void 0?`${o}/${n.tracksTotal}`:o.toString();r("PART_NUMBER",c),a.add("PART_NUMBER")}break;case"discNumber":{let c=n.discsTotal!==void 0?`${o}/${n.discsTotal}`:o.toString();r("DISC",c),a.add("DISC")}break;case"tracksTotal":case"discsTotal":break;case"images":case"raw":break;default:ne(s)}if(n.raw)for(let s in n.raw){let o=n.raw[s];o==null||a.has(s)||(typeof o=="string"||o instanceof Uint8Array)&&r(s,o)}e.length!==0&&(this.tagsElement={id:307544935,data:[{id:29555,data:[{id:25536,data:[{id:26826,data:50},{id:25546,data:"MOVIE"}]},...e]}]})}maybeCreateAttachments(){let e=this.output._metadataTags,r=[],n=new Set,a=e.images??[];for(let s of a){let o=s.name;o===void 0&&(o=(s.kind==="coverFront"?"cover":s.kind==="coverBack"?"back":"image")+(zl(s.mimeType)??""));let c;for(;;){c=0n;for(let u=0;u<8;u++)c<<=8n,c|=BigInt(Math.floor(Math.random()*256));if(c!==0n&&!n.has(c))break}n.add(c),r.push({id:24999,data:[s.description!==void 0?{id:18046,data:new Vt(s.description)}:null,{id:18030,data:new Vt(o)},{id:18016,data:s.mimeType},{id:18012,data:s.data},{id:18094,data:c}]})}for(let[s,o]of Object.entries(e.raw??{}))!(o instanceof Nr)||!/^\d+$/.test(s)||a.find(u=>u.mimeType===o.mimeType&&Ka(u.data,o.data))||r.push({id:24999,data:[o.description!==void 0?{id:18046,data:new Vt(o.description)}:null,{id:18030,data:new Vt(o.name??"")},{id:18016,data:o.mimeType??""},{id:18012,data:o.data},{id:18094,data:BigInt(s)}]});r.length!==0&&(this.attachmentsElement={id:423732329,data:r})}createSegment(){this.createTracks(),this.maybeCreateTags(),this.maybeCreateAttachments(),this.maybeCreateSeekHead(!1);let e={id:408125543,size:this.format._options.appendOnly?-1:pf,data:[this.seekHead,this.segmentInfo,this.tracksElement,this.attachmentsElement,this.tagsElement]};if(this.segment=e,this.format._options.onSegmentHeader&&this.writer.startTrackingWrites(),this.ebmlWriter.writeEBML(e),this.format._options.onSegmentHeader){let{data:r,start:n}=this.writer.stopTrackingWrites();this.format._options.onSegmentHeader(r,n)}}createCues(){this.cues={id:475249515,data:[]}}get segmentDataOffset(){return g(this.segment),this.ebmlWriter.dataOffsets.get(this.segment)}allTracksAreKnown(){for(let e of this.output.tracks)if(!e.source._closed&&!this.trackDatas.some(r=>r.track===e))return!1;return!0}async getMimeType(){await this.allTracksKnown.promise;let e=this.trackDatas.map(r=>r.type==="video"||r.type==="audio"?r.info.decoderConfig.codec:{webvtt:"wvtt"}[r.track.source._codec]);return Ms({isWebM:this.format instanceof Li,hasVideo:this.trackDatas.some(r=>r.type==="video"),hasAudio:this.trackDatas.some(r=>r.type==="audio"),codecStrings:e})}getVideoTrackData(e,r,n){let a=this.trackDatas.find(l=>l.track===e);if(a)return a;tr(n,e.source._codec),g(n),g(n.decoderConfig),g(n.decoderConfig.codedWidth!==void 0),g(n.decoderConfig.codedHeight!==void 0);let s=n.decoderConfig.displayAspectWidth,o=n.decoderConfig.displayAspectHeight,c=s===void 0||o===void 0?null:Gt({num:s,den:o}),u={track:e,type:"video",info:{width:n.decoderConfig.codedWidth,height:n.decoderConfig.codedHeight,aspectRatio:c,decoderConfig:n.decoderConfig,alphaMode:e.metadata.canBeTransparent||(r?!!r.sideData.alpha:null)},chunkQueue:[],lastWrittenMsTimestamp:null,codecPrivate:n.decoderConfig.description??null,closed:!1};return e.source._codec==="vp9"?u.codecPrivate=new Uint8Array(yd(u.info.decoderConfig.codec)):e.source._codec==="av1"?u.codecPrivate=new Uint8Array(fs(u.info.decoderConfig.codec)):e.source._codec==="prores"&&(u.codecPrivate=Y.encode(n.decoderConfig.codec)),this.trackDatas.push(u),this.trackDatas.sort((l,d)=>l.track.id-d.track.id),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),u}getAudioTrackData(e,r,n){let a=this.trackDatas.find(u=>u.track===e);if(a)return a;Se(n,e.source._codec),g(n),g(n.decoderConfig);let s={...n.decoderConfig},o=!1;if(e.source._codec==="aac"&&!s.description){if(!r)throw new Error("No AAC description provided; you must therefore provide a priming packet.");let u=et(xe.tempFromBytes(r.data));if(!u)throw new Error("Couldn't parse ADTS header from the AAC packet. Make sure the packets are in ADTS format (as specified in ISO 13818-7) when not providing a description, or provide a description (must be an AudioSpecificConfig as specified in ISO 14496-3) and ensure the packets are raw AAC data.");let l=kt[u.samplingFrequencyIndex],d=Xt[u.channelConfiguration];if(l===void 0||d===void 0)throw new Error("Invalid ADTS frame header.");s.description=$i({objectType:u.objectType,outputSampleRate:l,outputNumberOfChannels:d}),o=!0}let c={track:e,type:"audio",info:{numberOfChannels:n.decoderConfig.numberOfChannels,sampleRate:n.decoderConfig.sampleRate,decoderConfig:s,requiresAdtsStripping:o},chunkQueue:[],lastWrittenMsTimestamp:null,codecPrivate:s.description??null,closed:!1};return this.trackDatas.push(c),this.trackDatas.sort((u,l)=>u.track.id-l.track.id),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),c}getSubtitleTrackData(e,r){let n=this.trackDatas.find(s=>s.track===e);if(n)return n;gs(r),g(r),g(r.config);let a={track:e,type:"subtitle",info:{config:r.config},chunkQueue:[],lastWrittenMsTimestamp:null,codecPrivate:Y.encode(r.config.description),closed:!1};return this.trackDatas.push(a),this.trackDatas.sort((s,o)=>s.track.id-o.track.id),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),a}async addEncodedVideoPacket(e,r,n){let a=await this.mutex.acquire();try{let s=this.getVideoTrackData(e,r,n);s.info.alphaMode??=!!r.sideData.alpha;let o=r.data;if(e.source._codec==="prores"){if(o.byteLength<8)throw new Error("ProRes packet too small, expected at least 8 bytes.");o=o.subarray(8)}let c=r.type==="key";this.validateTimestamp(s.track,r.timestamp,c);let u=r.timestamp,l=r.duration;e.metadata.frameRate!==void 0&&(u=qt(u,e.metadata.frameRate),l=qt(l,e.metadata.frameRate));let d=s.info.alphaMode?r.sideData.alpha??null:null,m=this.createInternalChunk(o,u,l,r.type,d);e.source._codec==="vp9"&&this.fixVP9ColorSpace(s,m),s.chunkQueue.push(m),await this.interleaveChunks()}finally{a()}}async addEncodedAudioPacket(e,r,n){let a=await this.mutex.acquire();try{let s=this.getAudioTrackData(e,r,n),o=r.data;if(s.info.requiresAdtsStripping){let l=et(xe.tempFromBytes(o));if(!l)throw new Error("Expected ADTS frame, didn't get one.");let d=l.crcCheck===null?Er:mt;o=o.subarray(d)}let c=r.type==="key";this.validateTimestamp(s.track,r.timestamp,c);let u=this.createInternalChunk(o,r.timestamp,r.duration,r.type);s.chunkQueue.push(u),await this.interleaveChunks()}finally{a()}}async addSubtitleCue(e,r,n){let a=await this.mutex.acquire();try{let s=this.getSubtitleTrackData(e,n);this.validateTimestamp(s.track,r.timestamp,!0);let o=r.text,c=Math.round(r.timestamp*1e3);En.lastIndex=0,o=o.replace(En,m=>{let p=zo(m.slice(1,-1))-c;return`<${No(p)}>`});let u=Y.encode(o),l=`${r.settings??""} +${r.identifier??""} +${r.notes??""}`,d=this.createInternalChunk(u,r.timestamp,r.duration,"key",l.trim()?Y.encode(l):null);s.chunkQueue.push(d),await this.interleaveChunks()}finally{a()}}async interleaveChunks(e=!1){if(!(!e&&!this.allTracksAreKnown())){e:for(;;){let r=null,n=1/0;for(let s of this.trackDatas){if(!e&&s.chunkQueue.length===0&&!s.closed)break e;s.chunkQueue.length>0&&s.chunkQueue[0].timestamp=2&&n.skipBits(1);let d={rgb:7,bt709:2,bt470bg:1,smpte170m:3}[e.info.decoderConfig.colorSpace.matrix];Il(r.data,n.pos,n.pos+3,d)}createInternalChunk(e,r,n,a,s=null){return{data:e,type:a,timestamp:r,duration:n,additions:s}}writeBlock(e,r){this.segment||this.createSegment();let n=Math.round(1e3*r.timestamp),a=this.trackDatas.every(m=>{if(e===m)return r.type==="key";let f=m.chunkQueue[0];return f?f.type==="key":m.closed}),s=!1;if(!this.currentCluster)s=!0;else{g(this.currentClusterStartMsTimestamp!==null),g(this.currentClusterMaxMsTimestamp!==null);let m=n-this.currentClusterStartMsTimestamp;s=a&&n>this.currentClusterMaxMsTimestamp&&m>=1e3*(this.format._options.minimumClusterDuration??1)||m>vg}s&&this.createNewCluster(n);let o=n-this.currentClusterStartMsTimestamp;if(o0?{id:155,data:l}:null]};this.ebmlWriter.writeEBML(m)}else{u.setUint8(3,+(r.type==="key")<<7);let m={id:163,data:[c,r.data]};this.ebmlWriter.writeEBML(m)}this.startTimestamp=Math.min(this.startTimestamp,n),this.endTimestamp=Math.max(this.endTimestamp,n+l),e.lastWrittenMsTimestamp=n,this.trackDatasInCurrentCluster.has(e)||this.trackDatasInCurrentCluster.set(e,{firstMsTimestamp:n}),this.currentClusterMaxMsTimestamp=Math.max(this.currentClusterMaxMsTimestamp,n)}createNewCluster(e){e=Math.max(0,e),this.currentCluster&&this.finalizeCurrentCluster(),this.format._options.onCluster&&this.writer.startTrackingWrites(),this.currentCluster={id:524531317,size:this.format._options.appendOnly?-1:hf,data:[{id:231,data:e}]},this.ebmlWriter.writeEBML(this.currentCluster),this.currentClusterStartMsTimestamp=e,this.currentClusterMaxMsTimestamp=e,this.trackDatasInCurrentCluster.clear()}finalizeCurrentCluster(){if(g(this.currentCluster),!this.format._options.appendOnly){let a=this.writer.getPos()-this.ebmlWriter.dataOffsets.get(this.currentCluster),s=this.writer.getPos();this.writer.seek(this.ebmlWriter.offsets.get(this.currentCluster)+4),this.ebmlWriter.writeVarInt(a,hf),this.writer.seek(s)}if(this.format._options.onCluster){g(this.currentClusterStartMsTimestamp!==null);let{data:a,start:s}=this.writer.stopTrackingWrites();this.format._options.onCluster(a,s,this.currentClusterStartMsTimestamp/1e3)}let e=this.ebmlWriter.offsets.get(this.currentCluster)-this.segmentDataOffset,r=new Map;for(let[a,{firstMsTimestamp:s}]of this.trackDatasInCurrentCluster)r.has(s)||r.set(s,[]),r.get(s).push(a);let n=[...r.entries()].sort((a,s)=>a[0]-s[0]);for(let[a,s]of n)g(this.cues),this.cues.data.push({id:187,data:[{id:179,data:Math.max(0,a)},...s.map(o=>({id:183,data:[{id:247,data:o.track.id},{id:241,data:e}]}))]})}async onTrackClose(e){let r=await this.mutex.acquire(),n=this.trackDatas.find(a=>a.track===e);n&&(n.closed=!0),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),await this.interleaveChunks(),r()}async finalize(){let e=await this.mutex.acquire();this.allTracksKnown.resolve();for(let r of this.trackDatas)r.closed=!0;if(this.segment||this.createSegment(),await this.interleaveChunks(!0),this.currentCluster&&this.finalizeCurrentCluster(),g(this.cues),this.ebmlWriter.writeEBML(this.cues),!this.format._options.appendOnly){let r=this.writer.getPos()-this.segmentDataOffset;this.writer.seek(this.ebmlWriter.offsets.get(this.segment)+4),this.ebmlWriter.writeVarInt(r,pf);let n=this.startTimestamp===1/0?0:this.endTimestamp;this.segmentDuration.data=new sn(n),this.writer.seek(this.ebmlWriter.offsets.get(this.segmentDuration)),this.ebmlWriter.writeEBML(this.segmentDuration),g(this.seekHead),this.writer.seek(this.ebmlWriter.offsets.get(this.seekHead)),this.maybeCreateSeekHead(!0),this.ebmlWriter.writeEBML(this.seekHead)}e()}};var qo=class{constructor(t){this.writer=t;this.helper=new Uint8Array(8);this.helperView=new DataView(this.helper.buffer)}writeU32(t){this.helperView.setUint32(0,t,!1),this.writer.write(this.helper.subarray(0,4))}writeXingFrame(t){let e=this.writer.getPos(),r=255,n=224|t.mpegVersionId<<3|t.layer<<1,a;t.mpegVersionId&2?a=t.mpegVersionId&1?0:1:a=1;let s=0,o=155,c=-1,u=a*16*4+t.layer*16;for(let h=0;h<16;h++){let y=bs[u+h];if(ys(a,t.layer,1e3*y,t.sampleRate,s)>=o){c=h;break}}if(c===-1)throw new Error("No suitable bitrate found.");let l=c<<4|t.frequencyIndex<<2|s<<1,d=t.channel<<6|t.modeExtension<<4|t.copyright<<3|t.original<<2|t.emphasis;this.helper[0]=r,this.helper[1]=n,this.helper[2]=l,this.helper[3]=d,this.writer.write(this.helper.subarray(0,4));let m=Gr(t.mpegVersionId,t.channel);this.writer.seek(e+m),this.writeU32(Qr);let f=0;t.frameCount!==null&&(f|=1),t.fileSize!==null&&(f|=2),t.toc!==null&&(f|=4),this.writeU32(f),this.writeU32(t.frameCount??0),this.writeU32(t.fileSize??0),this.writer.write(t.toc??new Uint8Array(100));let p=bs[u+c],b=ys(a,t.layer,1e3*p,t.sampleRate,s);this.writer.write(new Uint8Array(e+b-this.writer.getPos()))}};var Ko=class extends Pe{constructor(e,r){super(e);this.xingFrameData=null;this.frameCount=0;this.framePositions=[];this.xingFramePos=null;this.format=r,this.writeXingHeader=r._options.xingHeader!==!1}async start(){let e=await this.mutex.acquire();this.writer=await this.output._getRootWriter(!this.writeXingHeader),this.mp3Writer=new qo(this.writer),br(this.output._metadataTags)||new oi(this.writer).writeId3V2Tag(this.output._metadataTags),e()}async getMimeType(){return"audio/mpeg"}async addEncodedVideoPacket(){throw new Error("MP3 does not support video.")}async addEncodedAudioPacket(e,r){let n=await this.mutex.acquire();try{if(!this.xingFrameData&&this.writeXingHeader){let a=N(r.data);if(a.byteLength<4)throw new Error("Invalid MP3 header in sample.");let s=a.getUint32(0,!1),o=jr(s,null).header;if(!o)throw new Error("Invalid MP3 header in sample.");let c=Gr(o.mpegVersionId,o.channel);if(a.byteLength>=c+4){let u=a.getUint32(c,!1);if(u===Qr||u===en)return}this.xingFrameData={mpegVersionId:o.mpegVersionId,layer:o.layer,frequencyIndex:o.frequencyIndex,sampleRate:o.sampleRate,channel:o.channel,modeExtension:o.modeExtension,copyright:o.copyright,original:o.original,emphasis:o.emphasis,frameCount:null,fileSize:null,toc:null},this.xingFramePos=this.writer.getPos(),this.mp3Writer.writeXingFrame(this.xingFrameData),this.frameCount++}this.validateTimestamp(e,r.timestamp,r.type==="key"),this.writeXingHeader&&this.framePositions.push(this.writer.getPos()),this.writer.write(r.data),this.frameCount++,await this.writer.flush()}finally{n()}}async addSubtitleCue(){throw new Error("MP3 does not support subtitles.")}async finalize(){let e=await this.mutex.acquire();if(this.frameCount===0){if(!this.writeXingHeader)throw new Error("Cannot finalize an empty MP3 file: not a single packet was added and the Xing header is disabled, so there's no frame we could write.");let n=this.output.tracks[0];g(n?.isAudioTrack());let a=n.metadata.primingPacket;if(a){let s=N(a.data);if(s.byteLength<4)throw new Error("Invalid MP3 header in priming packet.");let o=s.getUint32(0,!1),c=jr(o,null).header;if(!c)throw new Error("Invalid MP3 header in priming packet.");this.xingFrameData={mpegVersionId:c.mpegVersionId,layer:c.layer,frequencyIndex:c.frequencyIndex,sampleRate:c.sampleRate,channel:c.channel,modeExtension:c.modeExtension,copyright:c.copyright,original:c.original,emphasis:c.emphasis,frameCount:null,fileSize:null,toc:null}}else if(n.metadata.decoderConfig){let{sampleRate:s,numberOfChannels:o}=n.metadata.decoderConfig,c=[3,2,0],u=null,l=-1;for(let d=0;d0){let s=new Uint8Array(100);for(let o=0;o<100;o++){let c=Math.floor(this.framePositions.length*(o/100)),u=this.framePositions[c]-this.xingFramePos;s[o]=256*(u/a)}this.xingFrameData.toc=s}if(this.xingFrameData.frameCount=this.frameCount,this.xingFrameData.fileSize=a,this.format._options.onXingFrame&&this.writer.startTrackingWrites(),this.mp3Writer.writeXingFrame(this.xingFrameData),this.format._options.onXingFrame){let{data:s,start:o}=this.writer.stopTrackingWrites();this.format._options.onXingFrame(s,o)}}e()}};var Rg=8192,Qo=class extends Pe{constructor(e,r){super(e);this.trackDatas=[];this.bosPagesWritten=!1;this.allTracksKnown=J();this.pageBytes=new Uint8Array(zs);this.pageView=new DataView(this.pageBytes.buffer);this.format=r}async start(){let e=await this.mutex.acquire();this.writer=await this.output._getRootWriter(!0);for(let r of this.output.tracks)g(r.isAudioTrack()),r.metadata.decoderConfig&&this.getTrackData(r,{decoderConfig:r.metadata.decoderConfig});e()}async getMimeType(){return await this.allTracksKnown.promise,Us({codecStrings:this.trackDatas.map(e=>e.codecInfo.codec)})}addEncodedVideoPacket(){throw new Error("Video tracks are not supported.")}getTrackData(e,r){let n=this.trackDatas.find(o=>o.track===e);if(n)return n;let a;do a=Math.floor(2**32*Math.random());while(this.trackDatas.some(o=>o.serialNumber===a));g(e.source._codec==="vorbis"||e.source._codec==="opus"),Se(r,e.source._codec),g(r),g(r.decoderConfig);let s={track:e,serialNumber:a,internalSampleRate:e.source._codec==="opus"?Ft:r.decoderConfig.sampleRate,codecInfo:{codec:e.source._codec,vorbisInfo:null,opusInfo:null},vorbisLastBlocksize:null,packetQueue:[],startTimestampInSamples:null,currentTimestampInSamples:0,audioPacketCount:0,pagesWritten:0,currentGranulePosition:0,currentLacingValues:[],currentPageData:[],currentPageSize:27,currentPageStartsWithFreshPacket:!0,currentPageStartTimestampInSamples:0,closed:!1};return this.queueHeaderPackets(s,r),this.trackDatas.push(s),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),s}queueHeaderPackets(e,r){if(g(r.decoderConfig),e.track.source._codec==="vorbis"){g(r.decoderConfig.description);let n=$(r.decoderConfig.description);if(n[0]!==2)throw new TypeError("First byte of Vorbis decoder description must be 2.");let a=1,s=()=>{let h=0;for(;;){let y=n[a++];if(y===void 0)throw new TypeError("Vorbis decoder description is too short.");if(h+=y,y<255)return h}},o=s(),c=s();if(n.length-a<=0)throw new TypeError("Vorbis decoder description is too short.");let l=n.subarray(a,a+=o);a+=c;let d=n.subarray(a),m=new Uint8Array(7);m[0]=3,m[1]=118,m[2]=111,m[3]=114,m[4]=98,m[5]=105,m[6]=115;let f=Qn(m,this.output._metadataTags,!0);e.packetQueue.push({data:l,timestampInSamples:0,durationInSamples:0,trimmedDurationInSamples:0,forcePageFlush:!0},{data:f,timestampInSamples:0,durationInSamples:0,trimmedDurationInSamples:0,forcePageFlush:!1},{data:d,timestampInSamples:0,durationInSamples:0,trimmedDurationInSamples:0,forcePageFlush:!0});let b=N(l).getUint8(28);e.codecInfo.vorbisInfo={blocksizes:[1<<(b&15),1<<(b>>4)],modeBlockflags:is(d).modeBlockflags}}else if(e.track.source._codec==="opus"){if(!r.decoderConfig.description)throw new TypeError("For Ogg, Opus decoder description is required.");let n=$(r.decoderConfig.description),a=new Uint8Array(8),s=N(a);s.setUint32(0,1332770163,!1),s.setUint32(4,1415669619,!1);let o=Qn(a,this.output._metadataTags,!0);e.packetQueue.push({data:n,timestampInSamples:0,durationInSamples:0,trimmedDurationInSamples:0,forcePageFlush:!0},{data:o,timestampInSamples:0,durationInSamples:0,trimmedDurationInSamples:0,forcePageFlush:!0}),e.codecInfo.opusInfo={preSkip:Hr(n).preSkip}}}async addEncodedAudioPacket(e,r,n){let a=await this.mutex.acquire();try{let s=this.getTrackData(e,n);if(this.validateTimestamp(s.track,r.timestamp,r.type==="key"),s.startTimestampInSamples===null){let m=Math.round(r.timestamp*s.internalSampleRate),f=s.codecInfo.opusInfo?.preSkip??0;s.startTimestampInSamples=m>0?m+f:0,s.currentTimestampInSamples=s.startTimestampInSamples}let o=s.currentTimestampInSamples,{durationInSamples:c,vorbisBlockSize:u}=oa(r.data,s.codecInfo,s.vorbisLastBlocksize);s.currentTimestampInSamples+=c,s.vorbisLastBlocksize=u;let l=r.duration>0?ee(Math.round(r.duration*s.internalSampleRate),0,c):c,d=s.startTimestampInSamples>0&&s.audioPacketCount===1;s.audioPacketCount++,s.packetQueue.push({data:r.data,timestampInSamples:o,durationInSamples:c,trimmedDurationInSamples:l,forcePageFlush:d}),await this.interleavePages()}finally{a()}}addSubtitleCue(){throw new Error("Subtitle tracks are not supported.")}allTracksAreKnown(){for(let e of this.output.tracks)if(!e.source._closed&&!this.trackDatas.some(r=>r.track===e))return!1;return!0}async interleavePages(e=!1){if(!this.bosPagesWritten){if(!this.allTracksAreKnown()&&!e)return;for(let r of this.trackDatas)for(;r.packetQueue.length>0;){let n=r.packetQueue.shift();if(this.writePacket(r,n,!1),n.forcePageFlush)break}this.bosPagesWritten=!0}e:for(;;){let r=null,n=1/0;for(let o of this.trackDatas){if(!e&&o.packetQueue.length<=1&&!o.closed)break e;o.packetQueue.length>0&&o.packetQueue[0].timestampInSamples0&&a-e.currentPageStartTimestampInSamples>l&&this.writePage(e,!1)}let s=r.data.length,o=0,c=0;for(;;){e.currentLacingValues.length===0&&o>0&&(e.currentPageStartsWithFreshPacket=!1);let l=Math.min(255,s);e.currentLacingValues.push(l),e.currentPageSize++,c+=l;let d=s<255;if(e.currentLacingValues.length===255){let m=r.data.subarray(o,c);if(o=c,e.currentPageData.push(m),e.currentPageSize+=m.length,this.writePage(e,n&&d),d)return}if(d)break;s-=255}let u=r.data.subarray(o);e.currentPageData.push(u),e.currentPageSize+=u.length,e.currentGranulePosition=a,(e.currentPageSize>=Rg||r.forcePageFlush)&&this.writePage(e,n)}writePage(e,r){this.pageView.setUint32(0,sa,!0),this.pageView.setUint8(4,0);let n=0;e.currentPageStartsWithFreshPacket||(n|=1),e.pagesWritten===0&&(n|=2),r&&(n|=4),this.pageView.setUint8(5,n);let a=e.currentLacingValues.every(u=>u===255)?-1:e.currentGranulePosition;Bl(this.pageView,6,a,!0),this.pageView.setUint32(14,e.serialNumber,!0),this.pageView.setUint32(18,e.pagesWritten,!0),this.pageView.setUint32(22,0,!0),this.pageView.setUint8(26,e.currentLacingValues.length),this.pageBytes.set(e.currentLacingValues,27);let s=27+e.currentLacingValues.length;for(let u of e.currentPageData)this.pageBytes.set(u,s),s+=u.length;let o=this.pageBytes.subarray(0,s),c=Vs(o);if(this.pageView.setUint32(22,c,!0),e.pagesWritten++,e.currentLacingValues.length=0,e.currentPageData.length=0,e.currentPageSize=27,e.currentPageStartsWithFreshPacket=!0,e.currentPageStartTimestampInSamples=e.currentGranulePosition,this.format._options.onPage&&this.writer.startTrackingWrites(),this.writer.write(o),this.format._options.onPage){let{data:u,start:l}=this.writer.stopTrackingWrites();this.format._options.onPage(u,l,e.track.source)}}async onTrackClose(e){let r=await this.mutex.acquire(),n=this.trackDatas.find(a=>a.track===e);n&&(n.closed=!0),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),await this.interleavePages(),r()}async finalize(){let e=await this.mutex.acquire();this.allTracksKnown.resolve();for(let r of this.trackDatas)r.closed=!0;await this.interleavePages(!0);for(let r of this.trackDatas)r.currentLacingValues.length>0&&this.writePage(r,!0);e()}};var Fg=0,Tf=4096,gf=256,Mg=224,bf=192,yf=new Uint8Array([9,240]),kf=new Uint8Array([70,1]),Go=class extends Pe{constructor(e,r){super(e);this.trackDatas=[];this.tablesWritten=!1;this.continuityCounters=new Map;this.packetBuffer=new Uint8Array(188);this.packetView=N(this.packetBuffer);this.allTracksKnown=J();this.videoTrackIndex=0;this.audioTrackIndex=0;this.adaptationFieldBuffer=new Uint8Array(184);this.payloadBuffer=new Uint8Array(184);this.format=r}async start(){let e=await this.mutex.acquire();this.writer=await this.output._getRootWriter(!0),e()}async getMimeType(){return await this.allTracksKnown.promise,Gs(this.trackDatas.map(e=>e.codecString))}getVideoTrackData(e,r){let n=this.trackDatas.find(l=>l.track===e);if(n)return n;tr(r,e.source._codec),g(r?.decoderConfig);let a=e.source._codec;g(a==="avc"||a==="hevc");let s=a==="avc"?27:36,o=gf+this.trackDatas.length,c=Mg+this.videoTrackIndex++,u={track:e,pid:o,streamType:s,streamId:c,codecString:r.decoderConfig.codec,timestampProcessingQueue:[],packetQueue:[],inputIsAnnexB:null,inputIsAdts:null,avcDecoderConfig:null,hevcDecoderConfig:null,adtsHeader:null,adtsHeaderBitstream:null,firstPacketWritten:!1,closed:!1};return this.trackDatas.push(u),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),u}getAudioTrackData(e,r){let n=this.trackDatas.find(l=>l.track===e);if(n)return n;Se(r,e.source._codec),g(r?.decoderConfig);let a=e.source._codec;g(a==="aac"||a==="mp3"||a==="ac3"||a==="eac3"||a==="dts");let s,o;switch(a){case"aac":s=15,o=bf+this.audioTrackIndex++;break;case"mp3":s=3,o=bf+this.audioTrackIndex++;break;case"ac3":s=129,o=189;break;case"eac3":s=135,o=189;break;case"dts":s=130,o=189;break}let c=gf+this.trackDatas.length,u={track:e,pid:c,streamType:s,streamId:o,codecString:r.decoderConfig.codec,timestampProcessingQueue:[],packetQueue:[],inputIsAnnexB:null,inputIsAdts:null,avcDecoderConfig:null,hevcDecoderConfig:null,adtsHeader:null,adtsHeaderBitstream:null,firstPacketWritten:!1,closed:!1};return this.trackDatas.push(u),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),u}async addEncodedVideoPacket(e,r,n){let a=await this.mutex.acquire();try{let s=this.getVideoTrackData(e,n);this.validateTimestamp(s.track,r.timestamp,r.type==="key");let o=this.prepareVideoPacket(s,r,n);r.type==="key"&&await this.flushTimestampQueue(s),s.timestampProcessingQueue.push({data:o,presentationTimestamp:r.timestamp,decodeTimestamp:null,isKeyframe:r.type==="key"})}finally{a()}}async addEncodedAudioPacket(e,r,n){let a=await this.mutex.acquire();try{let s=this.getAudioTrackData(e,n);this.validateTimestamp(s.track,r.timestamp,r.type==="key");let o=this.prepareAudioPacket(s,r,n);r.type==="key"&&await this.flushTimestampQueue(s),s.timestampProcessingQueue.push({data:o,presentationTimestamp:r.timestamp,decodeTimestamp:null,isKeyframe:r.type==="key"})}finally{a()}}async addSubtitleCue(){throw new Error("MPEG-TS does not support subtitles.")}prepareVideoPacket(e,r,n){let a=e.track.source._codec;if(e.inputIsAnnexB===null){let s=n?.decoderConfig?.description;if(e.inputIsAnnexB=!s,!e.inputIsAnnexB){let o=$(s);a==="avc"?e.avcDecoderConfig=Wr(o):e.hevcDecoderConfig=Yi(o)}}return e.inputIsAnnexB?this.prepareAnnexBVideoPacket(r.data,a):this.prepareLengthPrefixedVideoPacket(e,r,a)}prepareAnnexBVideoPacket(e,r){let n=[];for(let s of Lr(e)){let o=e.subarray(s.offset,s.offset+s.length);(r==="avc"?Yt(o[0])===9:_t(o[0])===35)||n.push(o)}let a=r==="avc"?yf:kf;return n.unshift(a),qn(n)}prepareLengthPrefixedVideoPacket(e,r,n){let a=r.data,s=n==="avc"?e.avcDecoderConfig.lengthSizeMinusOne+1:e.hevcDecoderConfig.lengthSizeMinusOne+1,o=[];for(let u of Ya(a,s)){let l=a.subarray(u.offset,u.offset+u.length);(n==="avc"?Yt(l[0])===9:_t(l[0])===35)||o.push(l)}if(r.type==="key")if(n==="avc"){let u=e.avcDecoderConfig;for(let l of u.pictureParameterSets)o.unshift(l);for(let l of u.sequenceParameterSets)o.unshift(l)}else{let u=e.hevcDecoderConfig;for(let l of u.arrays)if(l.nalUnitType===34)for(let d of l.nalUnits)o.unshift(d);for(let l of u.arrays)if(l.nalUnitType===33)for(let d of l.nalUnits)o.unshift(d);for(let l of u.arrays)if(l.nalUnitType===32)for(let d of l.nalUnits)o.unshift(d)}let c=n==="avc"?yf:kf;return o.unshift(c),qn(o)}prepareAudioPacket(e,r,n){let a=e.track.source._codec;if(a==="mp3"||a==="ac3"||a==="eac3"||a==="dts")return r.data;if(e.inputIsAdts===null){let u=n?.decoderConfig?.description;if(e.inputIsAdts=!u,!e.inputIsAdts){let l=$t($(u)),d=ja(l);e.adtsHeader=d.header,e.adtsHeaderBitstream=d.bitstream}}if(e.inputIsAdts)return r.data;g(e.adtsHeader),g(e.adtsHeaderBitstream);let s=e.adtsHeader,o=r.data.byteLength+s.byteLength;Xa(e.adtsHeaderBitstream,o);let c=new Uint8Array(o);return c.set(s,0),c.set(r.data,s.byteLength),c}allTracksAreKnown(){for(let e of this.output.tracks)if(!e.source._closed&&!this.trackDatas.some(r=>r.track===e))return!1;return!0}async flushTimestampQueue(e,r=!0){if(e.timestampProcessingQueue.length===0)return;let n=e.timestampProcessingQueue.map(a=>a.presentationTimestamp).sort((a,s)=>a-s);for(let a=0;a0&&s.packetQueue[0].presentationTimestamp0){let E=this.adaptationFieldBuffer;w===1?E[0]=0:(E[0]=w-1,E[1]=Number(k)<<7|Number(y)<<6,E.fill(255,2,w)),A=E.subarray(0,w)}let x=Math.min(184-w,h),C=this.payloadBuffer.subarray(0,x),P=0;if(f0,c=n?o?3:2:o?1:0;this.packetBuffer[0]=71,this.packetView.setUint16(1,(r?16384:0)|e&8191,!1),this.packetBuffer[3]=c<<4|s&15,o&&this.continuityCounters.set(e,s+1&15);let u=4;n&&(this.packetBuffer.set(n,u),u+=n.length),this.packetBuffer.set(a,u),u+=a.length,u<188&&this.packetBuffer.fill(255,u);let l=this.writer.getPos();this.writer.write(this.packetBuffer),this.format._options.onPacket&&this.format._options.onPacket(this.packetBuffer.slice(),l)}async onTrackClose(e){let r=await this.mutex.acquire(),n=this.trackDatas.find(a=>a.track===e);n&&(n.closed=!0,await this.flushTimestampQueue(n,!1)),this.allTracksAreKnown()&&this.allTracksKnown.resolve(),await this.interleavePackets(),r()}async finalize(){let e=await this.mutex.acquire();this.allTracksKnown.resolve();for(let r of this.trackDatas)r.closed=!0,await this.flushTimestampQueue(r,!1);await this.interleavePackets(!0),e()}},Bg=79764919,wf=new Uint32Array(256);for(let i=0;i<256;i++){let t=i<<24;for(let e=0;e<8;e++)t=t&2147483648?t<<1^Bg:t<<1;wf[i]=t>>>0&4294967295}var Sf=i=>{let t=4294967295;for(let e=0;e>>24^r])>>>0}return t},Wi=new Uint8Array(16);{let i=N(Wi);Wi[0]=0,i.setUint16(1,45069,!1),i.setUint16(3,1,!1),Wi[5]=193,Wi[6]=0,Wi[7]=0,i.setUint16(8,1,!1),i.setUint16(10,57344|Tf&8191,!1),i.setUint32(12,Sf(Wi.subarray(0,12)),!1)}var Og=i=>{let t=0;for(let c of i)t+=5,c.streamType===129?t+=jn.length:c.streamType===135&&(t+=Xn.length);let e=9+t+4,r=new Uint8Array(3+e-4),n=N(r);r[0]=2,n.setUint16(1,45056|e&4095,!1),n.setUint16(3,1,!1),r[5]=193,r[6]=0,r[7]=0,n.setUint16(8,65535,!1),n.setUint16(10,61440,!1);let a=12;for(let c of i)r[a++]=c.streamType,n.setUint16(a,57344|c.pid&8191,!1),a+=2,c.streamType===129?(n.setUint16(a,61440|jn.length,!1),a+=2,r.set(jn,a),a+=jn.length):c.streamType===135?(n.setUint16(a,61440|Xn.length,!1),a+=2,r.set(Xn,a),a+=Xn.length):(n.setUint16(a,61440,!1),a+=2);let s=Sf(r),o=new Uint8Array(r.length+4);return o.set(r,0),N(o).setUint32(r.length,s,!1),o};var jo=class{constructor(t){this.writer=t;this.helper=new Uint8Array(8);this.helperView=new DataView(this.helper.buffer)}writeU16(t){this.helperView.setUint16(0,t,!0),this.writer.write(this.helper.subarray(0,2))}writeU32(t){this.helperView.setUint32(0,t,!0),this.writer.write(this.helper.subarray(0,4))}writeU64(t){this.helperView.setUint32(0,t,!0),this.helperView.setUint32(4,Math.floor(t/2**32),!0),this.writer.write(this.helper)}writeAscii(t){this.writer.write(Y.encode(t))}};var Xo=class extends Pe{constructor(e,r){super(e);this.headerWritten=!1;this.dataSize=0;this.sampleRate=null;this.sampleCount=0;this.riffSizePos=null;this.dataSizePos=null;this.ds64RiffSizePos=null;this.ds64DataSizePos=null;this.ds64SampleCountPos=null;this.format=r,this.isRf64=!!r._options.large}async start(){let e=await this.mutex.acquire();this.writer=await this.output._getRootWriter(!1),this.riffWriter=new jo(this.writer);let r=this.output.tracks[0];g(r?.isAudioTrack()),r.metadata.decoderConfig&&(Se({decoderConfig:r.metadata.decoderConfig},r.source._codec),this.writeHeader(r,r.metadata.decoderConfig),this.sampleRate=r.metadata.decoderConfig.sampleRate,this.headerWritten=!0),e()}async getMimeType(){return"audio/wav"}async addEncodedVideoPacket(){throw new Error("WAVE does not support video.")}async addEncodedAudioPacket(e,r,n){let a=await this.mutex.acquire();try{if(this.headerWritten||(Se(n,e.source._codec),g(n),g(n.decoderConfig),this.writeHeader(e,n.decoderConfig),this.sampleRate=n.decoderConfig.sampleRate,this.headerWritten=!0),this.validateTimestamp(e,r.timestamp,r.type==="key"),!this.isRf64&&this.writer.getPos()+r.data.byteLength>=2**32)throw new Error("Adding more audio data would exceed the maximum RIFF size of 4 GiB. To write larger files, use RF64 by setting `large: true` in the WavOutputFormatOptions.");this.writer.write(r.data),this.dataSize+=r.data.byteLength,this.sampleCount+=Math.round(r.duration*this.sampleRate),await this.writer.flush()}finally{a()}}async addSubtitleCue(){throw new Error("WAVE does not support subtitles.")}writeHeader(e,r){this.format._options.onHeader&&this.writer.startTrackingWrites();let n,a=e.source._codec,s=Re(a);s.dataType==="ulaw"?n=7:s.dataType==="alaw"?n=6:s.dataType==="float"?n=3:n=1;let o=r.numberOfChannels,c=r.sampleRate,u=s.sampleSize*o;if(this.riffWriter.writeAscii(this.isRf64?"RF64":"RIFF"),this.isRf64?this.riffWriter.writeU32(4294967295):(this.riffSizePos=this.writer.getPos(),this.riffWriter.writeU32(0)),this.riffWriter.writeAscii("WAVE"),this.isRf64&&(this.riffWriter.writeAscii("ds64"),this.riffWriter.writeU32(28),this.ds64RiffSizePos=this.writer.getPos(),this.riffWriter.writeU64(0),this.ds64DataSizePos=this.writer.getPos(),this.riffWriter.writeU64(0),this.ds64SampleCountPos=this.writer.getPos(),this.riffWriter.writeU64(0),this.riffWriter.writeU32(0)),this.riffWriter.writeAscii("fmt "),this.riffWriter.writeU32(16),this.riffWriter.writeU16(n),this.riffWriter.writeU16(o),this.riffWriter.writeU32(c),this.riffWriter.writeU32(c*u),this.riffWriter.writeU16(u),this.riffWriter.writeU16(8*s.sampleSize),!br(this.output._metadataTags)){let l=this.format._options.metadataFormat??"info";l==="info"?this.writeInfoChunk(this.output._metadataTags):l==="id3"?this.writeId3Chunk(this.output._metadataTags):ne(l)}if(this.riffWriter.writeAscii("data"),this.isRf64?this.riffWriter.writeU32(4294967295):(this.dataSizePos=this.writer.getPos(),this.riffWriter.writeU32(0)),this.format._options.onHeader){let{data:l,start:d}=this.writer.stopTrackingWrites();this.format._options.onHeader(l,d)}}writeInfoChunk(e){let r=this.writer.getPos();this.riffWriter.writeAscii("LIST"),this.riffWriter.writeU32(0),this.riffWriter.writeAscii("INFO");let n=new Set,a=(c,u)=>{if(!Ct(u)){z._warn(`Didn't write tag '${c}' because '${u}' is not ISO 8859-1-compatible.`);return}let l=u.length+1,d=new Uint8Array(l);for(let m=0;mr[n*t]:t===1&&e===4?this.channelMixer=(r,n,a)=>r[n*t]*+(a<2):t===1&&e===6?this.channelMixer=(r,n,a)=>r[n*t]*+(a===2):t===2&&e===1?this.channelMixer=(r,n)=>{let a=n*t;return .5*(r[a]+r[a+1])}:t===2&&e===4?this.channelMixer=(r,n,a)=>a<2?r[n*t+a]:0:t===2&&e===6?this.channelMixer=(r,n,a)=>a<2?r[n*t+a]:0:t===4&&e===1?this.channelMixer=(r,n)=>{let a=n*t;return .25*(r[a]+r[a+1]+r[a+2]+r[a+3])}:t===4&&e===2?this.channelMixer=(r,n,a)=>{let s=n*t;return .5*(r[s+a]+r[s+a+2])}:t===4&&e===6?this.channelMixer=(r,n,a)=>{let s=n*t;return a<2?r[s+a]:a===2||a===3?0:r[s+a-2]}:t===6&&e===1?this.channelMixer=(r,n)=>{let a=n*t;return Math.SQRT1_2*(r[a]+r[a+1])+r[a+2]+.5*(r[a+4]+r[a+5])}:t===6&&e===2?this.channelMixer=(r,n,a)=>{let s=n*t;return r[s+a]+Math.SQRT1_2*(r[s+2]+r[s+a+4])}:t===6&&e===4?this.channelMixer=(r,n,a)=>{let s=n*t;return a<2?r[s+a]+Math.SQRT1_2*r[s+2]:r[s+a+2]}:this.channelMixer=(r,n,a)=>a=this.bufferStartFrame+this.bufferCapacityInFrames;)await this.finalizeCurrentBuffer(),this.bufferStartFrame+=this.bufferSizeInFrames;let l=u-this.bufferStartFrame;g(l=0&&p=0&&b=this.bufferSizeInFrames?this.maxWrittenFrame-this.bufferSizeInFrames:null}async finalize(){for(;this.maxWrittenFrame!==null;)await this.finalizeCurrentBuffer(),this.bufferStartFrame+=this.bufferSizeInFrames}};var Fn=class{constructor(){this._connectedTrack=null;this._closingPromise=null;this._closed=!1;this._nominalBitrate=null}_ensureValidAdd(){if(!this._connectedTrack)throw new Error("Source is not connected to an output track.");if(this._connectedTrack.output.state==="canceled")throw new Error("Output has been canceled.");if(this._connectedTrack.output.state==="finalizing"||this._connectedTrack.output.state==="finalized")throw new Error("Output has been finalized.");if(this._connectedTrack.output.state==="pending")throw new Error("Output has not started.");if(this._closed)throw new Error("Source is closed.")}async _start(){}async _flushAndClose(t){}close(){if(this._closingPromise)return;let t=this._connectedTrack;if(!t)throw new Error("Cannot call close without connecting the source to an output track.");if(t.output.state==="pending")throw new Error("Cannot call close before output has been started.");this._closingPromise=(async()=>{await this._flushAndClose(!1),this._closed=!0,!(t.output.state==="finalizing"||t.output.state==="finalized")&&t.output._muxer.onTrackClose(t)})()}async _flushOrWaitForOngoingClose(t){return this._closingPromise??=(async()=>{await this._flushAndClose(t),this._closed=!0})()}},Fr=class extends Fn{constructor(t){if(super(),!le.includes(t))throw new TypeError(`Invalid video codec '${t}'. Must be one of: ${le.join(", ")}.`);this._codec=t}},Ju=(i,t)=>{if(i.metadata.hasOnlyKeyPackets&&t.type!=="key")throw new Error("Cannot add non-key packets to a hasOnlyKeyPackets video track.")},ui=class extends Fr{constructor(t){super(t)}add(t,e){if(!(t instanceof X))throw new TypeError("packet must be an EncodedPacket.");if(t.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be added.");if(e!==void 0&&(!e||typeof e!="object"))throw new TypeError("meta, when provided, must be an object.");return this._ensureValidAdd(),Ju(this._connectedTrack,t),this._connectedTrack.output._muxer.addEncodedVideoPacket(this._connectedTrack,t,e)}},Ea=class{constructor(t,e){this.source=t;this.encodingConfig=e;this.ensureEncoderPromise=null;this.encoderInitialized=!1;this.encoder=null;this.encoderConfig=null;this.encodersReclaimed=!1;this.muxer=null;this.lastMultipleOfKeyFrameInterval=-1;this.emittedEncoderPackets=0;this.codedWidth=null;this.codedHeight=null;this.outputWidth=null;this.outputHeight=null;this.frameRateLastSample=null;this.frameRateLastTimestamp=null;this.frameRateLastEndTimestamp=null;this.preciseTimings=[];this.customEncoder=null;this.customEncoderCallSerializer=new Or;this.customEncoderQueueSize=0;this.defaultEncodeOptions={};this.alphaEncoder=null;this.splitter=null;this.splitterCreationFailed=!1;this.alphaFrameQueue=[];this.error=null;this.errorSet=!1;this.lastMuxerPromise=Promise.resolve();this.closed=!1}setError(t){this.errorSet||(this.error=t,this.errorSet=!0)}async add(t,e,r){let n=t;try{this.checkForEncoderError(),this.source._ensureValidAdd();let a=this.encodingConfig,s=a.sizeChangeBehavior??"deny",o=!1;if(this.codedWidth!==null&&this.codedHeight!==null){if((t.codedWidth!==this.codedWidth||t.codedHeight!==this.codedHeight)&&(o=!0,s==="deny"))throw new Error(`Video sample size must remain constant. Expected ${this.codedWidth}x${this.codedHeight}, got ${t.codedWidth}x${t.codedHeight}. To allow the sample size to change over time, set \`sizeChangeBehavior\` to a value other than 'deny' in the encoding options.`)}else this.codedWidth=t.codedWidth,this.codedHeight=t.codedHeight;if(a.transform?.width!==void 0||a.transform?.height!==void 0||a.transform?.rotate!==void 0||a.transform?.flip!==void 0||a.transform?.crop!==void 0||a.transform?.force===!0||o&&s!=="passThrough"){let d=a.transform?.width,m=a.transform?.height,f=a.transform?.fit??"fill";o&&s!=="passThrough"&&(g(this.outputWidth),g(this.outputHeight),g(s!=="deny"),d=this.outputWidth,m=this.outputHeight,f=s);let p=await t.transform({width:d,height:m,roundDimensionsTo:2,crop:a.transform?.crop,rotate:a.transform?.rotate,flip:a.transform?.flip,fit:f,alpha:a.alpha});(this.outputWidth===null||this.outputHeight===null)&&(this.outputWidth=p.displayWidth,this.outputHeight=p.displayHeight),e&&t.close(),t=p,e=!0}else(this.outputWidth===null||this.outputHeight===null)&&(this.outputWidth=t.codedWidth,this.outputHeight=t.codedHeight);let l=a.transform?.frameRate;if(l!==void 0){let d=t.timestamp+t.duration,m=hc(t.timestamp,l);if(this.frameRateLastSample!==null)if(m<=this.frameRateLastTimestamp){this.frameRateLastSample.close(),this.frameRateLastSample=t.clone(),this.frameRateLastEndTimestamp=d;return}else await this.padFrameRate(m,r);t===n&&(t=t.clone(),e=!0),t.setTimestamp(m),t.setDuration(1/l),this.frameRateLastSample?.close(),this.frameRateLastSample=t.clone(),this.frameRateLastTimestamp=m,this.frameRateLastEndTimestamp=d}await this.processAndEncode(t,r)}finally{e&&t.close()}}async processAndEncode(t,e){let r=this.encodingConfig,n;if(r.transform?.process){let a=r.transform.process(t);if(_(a)&&(a=await a),a===null)return;Array.isArray(a)||(a=[a]);let s=[];try{for(let o of a)o instanceof Xe?s.push(o):typeof VideoFrame<"u"&&o instanceof VideoFrame?s.push(new Xe(o)):s.push(new Xe(o,{timestamp:t.timestamp,duration:t.duration}))}catch(o){for(let c of s)c!==t&&c.close();for(let c of a)(c instanceof Xe&&c!==t||typeof VideoFrame<"u"&&c instanceof VideoFrame)&&c.close();throw o}n=s}else n=[t];try{for(let a of n){if(this.encoderInitialized||(this.ensureEncoderPromise||this.ensureEncoder(a),this.encoderInitialized||await this.ensureEncoderPromise),g(this.encoderInitialized),this.closed)break;this.encodersReclaimed&&this.recreateWebCodecsEncoders();let s=this.encodingConfig.keyFrameInterval??2,o=Math.floor(a.timestamp/s),c={...this.defaultEncodeOptions,...a.encodeOptions,...e},u={...c,keyFrame:c.keyFrame!==void 0?c.keyFrame:s===0||o!==this.lastMultipleOfKeyFrameInterval};if(this.lastMultipleOfKeyFrameInterval=o,this.encodingConfig.onEncodedSample?.(a),this.customEncoder){this.customEncoderQueueSize++;let l=a.clone(),d=this.customEncoderCallSerializer.call(()=>this.customEncoder.encode(l,u)).catch(m=>this.setError(m)).finally(()=>{this.customEncoderQueueSize--,l.close()});this.customEncoderQueueSize>=4&&await d}else{g(this.encoder);let l=a.toVideoFrame(),d=Q(this.preciseTimings,l.timestamp,f=>f.microsecondTimestamp),m=d!==-1?this.preciseTimings[d]:null;if(m&&m.microsecondTimestamp===l.timestamp?(m.timestamp!==a.timestamp&&(m.timestampIsValid=!1),m.duration!==a.duration&&(m.durationIsValid=!1)):(this.preciseTimings.splice(d+1,0,{microsecondTimestamp:l.timestamp,timestamp:a.timestamp,duration:a.duration,timestampIsValid:!0,durationIsValid:!0}),this.preciseTimings.length>128&&this.preciseTimings.shift()),this.alphaEncoder)if(!!l.format&&!l.format.includes("A")||this.splitterCreationFailed){this.alphaFrameQueue.push(null);try{this.encoder.encode(l,u)}finally{l.close()}}else{this.splitter||(this.splitter=new el);let{colorFrame:p,alphaFrame:b}=await this.splitter.split(l);this.alphaFrameQueue.push(b);try{this.encoder.encode(p,u)}finally{p.close()}}else try{this.encoder.encode(l,u)}finally{l.close()}this.encoder.encodeQueueSize>=4&&await new Promise(f=>this.encoder.addEventListener("dequeue",f,{once:!0}))}await this.lastMuxerPromise}}finally{for(let a of n)a!==t&&a.close()}}async padFrameRate(t,e){let r=this.encodingConfig.transform.frameRate;g(this.frameRateLastSample);let n=Math.round((t-this.frameRateLastTimestamp)*r);for(let u=1;u{let e=ai(this.encodingConfig.quality,this.encodingConfig.bitrate);g(e!==void 0);let r=Au({...this.encodingConfig,quality:e,width:t.codedWidth,height:t.codedHeight,squarePixelWidth:t.squarePixelWidth,squarePixelHeight:t.squarePixelHeight,framerate:this.source._connectedTrack?.metadata.frameRate}),n=null,a;for(let o of r){let c=o.config;if(this.encodingConfig.onEncoderConfig?.(c),a=Sn.find(l=>l.supports(this.encodingConfig.codec,c)),a){n=o;break}if(typeof VideoEncoder>"u")continue;if(c.alpha="discard",this.encodingConfig.alpha==="keep"&&(c.latencyMode="quality"),(c.width%2===1||c.height%2===1)&&(this.encodingConfig.codec==="avc"||this.encodingConfig.codec==="hevc"))throw new Error(`The dimensions ${c.width}x${c.height} are not supported for codec '${this.encodingConfig.codec}'; both width and height must be even numbers. Make sure to round your dimensions to the nearest even number.`);try{if((await VideoEncoder.isConfigSupported(c)).supported){n=o;break}}catch{}}if(!n){if(typeof VideoEncoder>"u")throw new Error(Gi("VideoEncoder"));let o=r[0].config,c=r.map(({config:u,quantizer:l})=>l!==null?`quantizer ${l}`:`${u.bitrate} bps`);throw new Error(`This specific encoder configuration (${o.codec}, ${c.join(" / ")}, ${o.width}x${o.height}, hardware acceleration: ${o.hardwareAcceleration??"no-preference"}) is not supported in this environment. Consider using another codec or changing your video parameters.`)}let s=n.config;n.quantizer!==null?this.defaultEncodeOptions=Cu(this.encodingConfig.codec,n.quantizer):this.source._nominalBitrate=s.bitrate??null,a?(this.customEncoder=new a,this.customEncoder.codec=this.encodingConfig.codec,this.customEncoder.config=s,this.customEncoder.onPacket=(o,c)=>{if(!(o instanceof X))throw new TypeError("The first argument passed to onPacket must be an EncodedPacket.");if(c!==void 0&&(!c||typeof c!="object"))throw new TypeError("The second argument passed to onPacket must be an object or undefined.");Ju(this.source._connectedTrack,o),this.encodingConfig.onEncodedPacket?.(o,c),this.lastMuxerPromise=this.muxer.addEncodedVideoPacket(this.source._connectedTrack,o,c).catch(u=>{this.setError(u)})},this.customEncoder.onError=o=>{this.setError(o)},await this.customEncoder.init()):(this.encoderConfig=s,this.createWebCodecsEncoders()),g(this.source._connectedTrack),this.muxer=this.source._connectedTrack.output._muxer,this.encoderInitialized=!0})()}createWebCodecsEncoders(){let t=this.encoderConfig;g(t);let e=[],r=[],n=0,a=0,s=(c,u)=>{if(Ul(c)){this.encodersReclaimed=!0;return}c.stack=u,this.setError(c)},o=new Error("Encoding error").stack;if(this.encoder=new VideoEncoder({output:(c,u)=>{if(!this.alphaEncoder){this.addPacket(c,null,u);return}let l=this.alphaFrameQueue.shift();g(l!==void 0),l?(this.alphaEncoder.encode(l,{...this.defaultEncodeOptions,keyFrame:c.type==="key"}),a++,l.close(),e.push({chunk:c,meta:u})):a===0?this.addPacket(c,null,u):(r.push(n+a),e.push({chunk:c,meta:u}))},error:c=>s(c,o)}),this.encoder.configure(t),this.encodingConfig.alpha==="keep"){let c=new Error("Encoding error").stack;this.alphaEncoder=new VideoEncoder({output:(u,l)=>{a--;let d=e.shift();for(g(d!==void 0),this.addPacket(d.chunk,u,d.meta),n++;r.length>0&&r[0]===n;){r.shift();let m=e.shift();g(m!==void 0),this.addPacket(m.chunk,null,m.meta)}},error:u=>s(u,c)}),this.alphaEncoder.configure(t)}}addPacket(t,e,r){let n={};if(e){let l=new Uint8Array(e.byteLength);e.copyTo(l),n.alpha=l}let a=X.fromEncodedChunk(t,n),s=this.encoderConfig;g(s),r?.decoderConfig&&(r.decoderConfig.codec=Kr({width:s.width,height:s.height,codec:this.encodingConfig.codec,codecDescription:r.decoderConfig.description?$(r.decoderConfig.description):null,colorSpace:r.decoderConfig.colorSpace??null,avcType:s.codec.includes("avc1.")?1:s.codec.includes("avc3.")?3:null,avcCodecInfo:this.encodingConfig.codec==="avc"&&!r.decoderConfig.description?Zt(a.data):null,hevcCodecInfo:this.encodingConfig.codec==="hevc"&&!r.decoderConfig.description?er(a.data):null,vp9CodecInfo:this.encodingConfig.codec==="vp9"?Zi(a.data):null,av1CodecInfo:this.encodingConfig.codec==="av1"?Ci(a.data):null,proresFormat:null}));let o=Q(this.preciseTimings,t.timestamp,l=>l.microsecondTimestamp),c=o!==-1?this.preciseTimings[o]:null,u=null;this.emittedEncoderPackets===0&&a.type==="delta"&&r?.decoderConfig&&(u=qr(this.encodingConfig.codec,r.decoderConfig,a.data)),(c&&c.microsecondTimestamp===t.timestamp||u!==null)&&(a=a.clone({timestamp:c?.timestampIsValid?c.timestamp:void 0,duration:c?.durationIsValid?c.duration:void 0,type:u??void 0})),Ju(this.source._connectedTrack,a),this.encodingConfig.onEncodedPacket?.(a,r),this.lastMuxerPromise=this.muxer.addEncodedVideoPacket(this.source._connectedTrack,a,r).catch(l=>{this.setError(l)}),this.emittedEncoderPackets++}recreateWebCodecsEncoders(){g(this.encoder),this.encoder.state!=="closed"&&this.encoder.close(),this.alphaEncoder&&this.alphaEncoder.state!=="closed"&&this.alphaEncoder.close(),this.alphaFrameQueue.forEach(t=>t?.close()),this.alphaFrameQueue.length=0,this.encodersReclaimed=!1,this.lastMultipleOfKeyFrameInterval=-1,this.createWebCodecsEncoders()}async flushAndClose(t){try{if(!t&&(this.checkForEncoderError(),this.frameRateLastSample)){let e=this.encodingConfig.transform.frameRate,r=hc(this.frameRateLastEndTimestamp,e);await this.padFrameRate(r)}this.closed=!0,t||(this.customEncoder?this.customEncoderCallSerializer.call(()=>this.customEncoder.flush()):this.encoder&&!this.encodersReclaimed&&(await this.encoder.flush(),await this.alphaEncoder?.flush(),await zr(25)))}finally{this.closed=!0,this.frameRateLastSample?.close(),this.frameRateLastSample=null,this.customEncoder?await this.customEncoderCallSerializer.call(()=>this.customEncoder.close()).catch(e=>this.setError(e)):this.encoder&&(this.encoder.state!=="closed"&&this.encoder.close(),this.alphaEncoder&&this.alphaEncoder.state!=="closed"&&this.alphaEncoder.close(),this.alphaFrameQueue.forEach(e=>e?.close()),this.alphaFrameQueue.length=0,this.splitter?.close())}t||this.checkForEncoderError()}getQueueSize(){return this.customEncoder?this.customEncoderQueueSize:this.encoder?.encodeQueueSize??0}checkForEncoderError(){if(this.errorSet)throw this.error}},$u=null,el=class{constructor(){this.worker=null;this.pendingRequests=new Map;this.nextRequestId=0}split(t){if(!this.worker){if(!$u){let n=new Blob([`(${Dg.toString()})()`],{type:"application/javascript"});$u=URL.createObjectURL(n)}this.worker=new Worker($u),this.worker.addEventListener("message",n=>{let a=n.data,s=this.pendingRequests.get(a.id);s&&(this.pendingRequests.delete(a.id),"error"in a?s.reject(new Error(a.error)):s.resolve({colorFrame:a.colorFrame,alphaFrame:a.alphaFrame}))}),this.worker.addEventListener("error",n=>{let a=new Error(n.message||"Color/alpha splitter worker error.");for(let s of this.pendingRequests.values())s.reject(a);this.pendingRequests.clear()})}let e=this.nextRequestId++,r=J();return this.pendingRequests.set(e,r),this.worker.postMessage({id:e,sourceFrame:t},{transfer:[t]}),r.promise}close(){this.worker?.terminate(),this.worker=null;let t=new Error("Color/alpha splitter closed.");for(let e of this.pendingRequests.values())e.reject(t);this.pendingRequests.clear()}},Dg=()=>{let i=null,t=Promise.resolve();self.addEventListener("message",a=>{let{id:s,sourceFrame:o}=a.data;t=t.then(async()=>{try{let{colorFrame:c,alphaFrame:u}=await e(o);self.postMessage({id:s,colorFrame:c,alphaFrame:u},{transfer:[c,u]})}catch(c){self.postMessage({id:s,error:c.message})}finally{o.close()}})});let e=async a=>{let s=a.format;if(!s)throw new Error("CPU color/alpha splitting requires a known VideoFrame format.");let o=a.allocationSize();if((!i||i.byteLength!==o)&&(i=new Uint8Array(o)),await a.copyTo(i),s==="RGBA"||s==="BGRA")return r(i,s,a);if(s==="I420A"||s==="I420AP10"||s==="I420AP12"||s==="I422A"||s==="I422AP10"||s==="I422AP12"||s==="I444A"||s==="I444AP10"||s==="I444AP12")return n(i,s,a);throw new Error(`CPU color/alpha splitting does not support format '${s}'.`)},r=(a,s,o)=>{let c=o.visibleRect?.width??o.codedWidth,u=o.visibleRect?.height??o.codedHeight,l=c*u,d=Math.ceil(c/2),m=Math.ceil(u/2),f=l+d*m*2,p=new Uint8Array(f);for(let k=0,T=3;k{let c=o.visibleRect?.width??o.codedWidth,u=o.visibleRect?.height??o.codedHeight,l=s.includes("P10"),d=s.includes("P12"),m=l||d?2:1,f,p;s.startsWith("I420")?(f=Math.ceil(c/2),p=Math.ceil(u/2)):s.startsWith("I422")?(f=Math.ceil(c/2),p=u):(f=c,p=u);let b=c*u,h=f*p,y=b*m,k=h*m,T=b*m,w=y+k*2,A=s.replace("A",""),x=Math.ceil(c/2),C=Math.ceil(u/2),P=x*C,S=P*m,I=T+2*S,E=new Uint8Array(I),v=w;E.set(a.subarray(v,v+T),0);let F=T,O=l?512:d?2048:128;m===1?E.fill(O,F):new Uint16Array(E.buffer,F,2*P).fill(O);let D=l?"I420P10":d?"I420P12":"I420",U=new VideoFrame(a.subarray(0,w),{format:A,codedWidth:c,codedHeight:u,timestamp:o.timestamp,duration:o.duration??void 0}),K={format:D,codedWidth:c,codedHeight:u,timestamp:o.timestamp,duration:o.duration??void 0,colorSpace:{fullRange:!0,matrix:"bt709",primaries:"bt709",transfer:"bt709"},transfer:[E.buffer]},ie=new VideoFrame(E,K);return{colorFrame:U,alphaFrame:ie}}},Mn=class extends Fr{constructor(t){Co(t),super(t.codec),this._encoder=new Ea(this,t)}add(t,e){if(!(t instanceof Xe))throw new TypeError("videoSample must be a VideoSample.");return this._encoder.add(t,!1,e)}_flushAndClose(t){return this._encoder.flushAndClose(t)}},tl=class extends Fr{constructor(t,e){if(!(typeof HTMLCanvasElement<"u"&&t instanceof HTMLCanvasElement)&&!(typeof OffscreenCanvas<"u"&&t instanceof OffscreenCanvas))throw new TypeError("canvas must be an HTMLCanvasElement or OffscreenCanvas.");Co(e),super(e.codec),this._encoder=new Ea(this,e),this._canvas=t}add(t,e=0,r){if(!Number.isFinite(t))throw new TypeError("timestamp must be a finite number.");if(!Number.isFinite(e)||e<0)throw new TypeError("duration must be a non-negative number.");let n=new Xe(this._canvas,{timestamp:t,duration:e});return this._encoder.add(n,!0,r)}_flushAndClose(t){return this._encoder.flushAndClose(t)}},rl=class extends Fr{constructor(e,r,n={}){if(!(e instanceof MediaStreamTrack)||e.kind!=="video")throw new TypeError("track must be a video MediaStreamTrack.");if(Co(r),typeof n!="object"||!n)throw new TypeError("options must be an object.");if(n.frameRate!=null&&(typeof n.frameRate!="number"||n.frameRate<=0))throw new TypeError("options.frameRate, when provided, must be either a positive number or null.");if(n.timestampBase!==void 0&&n.timestampBase!=="synced-zero"&&n.timestampBase!=="zero"&&n.timestampBase!=="unix")throw new TypeError("options.timestampBase, when provided, must be one of 'synced-zero', 'zero', or 'unix'.");r={...r,latencyMode:"realtime"};super(r.codec);this._abortController=null;this._workerTrackId=null;this._workerListener=null;this._promiseWithResolvers=J();this._errorPromiseAccessed=!1;this._paused=!1;this._lastVideoFrame=null;this._timerHandle=null;this._videoElement=null;this._options=n,this._encoder=new Ea(this,r),this._track=e}get errorPromise(){return this._errorPromiseAccessed=!0,this._promiseWithResolvers.promise}get paused(){return this._paused}async _start(){this._errorPromiseAccessed||z._warn("Make sure not to ignore the `errorPromise` field on MediaStreamVideoTrackSource, so that any internal errors get bubbled up properly.");let e=this._options.frameRate!==void 0?this._options.frameRate:this._track.getSettings().frameRate??null;this._abortController=new AbortController;let r=null,n=null,a=0,s=!1,o=null,c=0,u=()=>{if(g(e!==null),!this._lastVideoFrame)return;g(n!==null),g(r!==null);let m=performance.now();for(;m-n>1e3/e;){n+=1e3/e;let f=r+a/e,p=new VideoFrame(this._videoElement??this._lastVideoFrame,{timestamp:1e6*f,duration:1e6/e});d(p,m)}};e!==null&&(this._timerHandle=Kl(u,4));let l=m=>{if(e===null)d(m);else{let f=performance.now();this._lastVideoFrame?(u(),this._lastVideoFrame?.close(),this._lastVideoFrame=m):(d(m.clone(),f),n=f,this._lastVideoFrame=m)}},d=(m,f=performance.now())=>{if(s){m.close();return}a++;let p=m.timestamp/1e6;if(this._paused){if(r!==null){if(o!==null&&this._options.timestampBase!=="unix"){let y=p-o;c-=y}o=p}m.close();return}if(r===null){r=p;let h,y=this._options.timestampBase??"synced-zero";if(y==="unix")h=Date.now()/1e3;else if(y==="zero")h=0;else{let k=this._connectedTrack.output;k._firstMediaStreamTimestamp===null?(k._firstMediaStreamTimestamp=f/1e3,h=0):h=f/1e3-k._firstMediaStreamTimestamp}c=h-r}if(o=p,this._encoder.getQueueSize()>=8){m.close();return}let b=new Xe(m,{timestamp:p+c});this._encoder.add(b,!0).catch(h=>{s=!0,this._abortController?.abort(),this._promiseWithResolvers.reject(h),this._workerTrackId!==null&&Zu({type:"stopTrack",trackId:this._workerTrackId})})};if(typeof MediaStreamTrackProcessor<"u"){let m=new MediaStreamTrackProcessor({track:this._track}),f=new WritableStream({write:l});m.readable.pipeTo(f,{signal:this._abortController.signal}).catch(p=>{p instanceof DOMException&&p.name==="AbortError"||this._promiseWithResolvers.reject(p)})}else if(await Ng())this._workerTrackId=Ug++,Zu({type:"videoTrack",trackId:this._workerTrackId,track:this._track}),this._workerListener=f=>{let p=f.data;p.type==="videoFrame"&&p.trackId===this._workerTrackId?l(p.videoFrame):p.type==="error"&&p.trackId===this._workerTrackId&&this._promiseWithResolvers.reject(p.error)},xt.addEventListener("message",this._workerListener);else if(e!==null){let f=document.createElement("video");f.style.position="fixed",f.style.left="-10000px",f.style.top="-10000px",f.style.width="1px",f.style.height="1px",f.style.opacity="0",f.style.pointerEvents="none",f.muted=!0,f.srcObject=new MediaStream([this._track]),document.body.appendChild(f),this._videoElement=f,f.addEventListener("loadeddata",()=>{if(s||!this._videoElement)return;let p=new VideoFrame(f,{timestamp:1e3*performance.now()});l(p),p.close()},{once:!0}),f.play().catch(p=>{s=!0,this._promiseWithResolvers.reject(p)})}else throw new Error("When no explicit frame rate is set, MediaStreamTrackProcessor is required; but it's not available in this environment.")}pause(){this._paused=!0}resume(){this._paused=!1}async _flushAndClose(e){try{this._abortController&&(this._abortController.abort(),this._abortController=null),this._timerHandle&&Ql(this._timerHandle),this._lastVideoFrame?.close(),this._videoElement&&(this._videoElement.srcObject=null,this._videoElement.remove(),this._videoElement=null),this._workerTrackId!==null&&(g(this._workerListener),Zu({type:"stopTrack",trackId:this._workerTrackId}),await new Promise(r=>{let n=a=>{let s=a.data;s.type==="trackStopped"&&s.trackId===this._workerTrackId&&(g(this._workerListener),xt.removeEventListener("message",this._workerListener),xt.removeEventListener("message",n),r())};xt.addEventListener("message",n)}))}finally{await this._encoder.flushAndClose(e)}}},Mr=class extends Fn{constructor(t){if(super(),!fe.includes(t))throw new TypeError(`Invalid audio codec '${t}'. Must be one of: ${fe.join(", ")}.`);this._codec=t}},li=class extends Mr{constructor(t){super(t)}add(t,e){if(!(t instanceof X))throw new TypeError("packet must be an EncodedPacket.");if(t.isMetadataOnly)throw new TypeError("Metadata-only packets cannot be added.");if(e!==void 0&&(!e||typeof e!="object"))throw new TypeError("meta, when provided, must be an object.");return this._ensureValidAdd(),this._connectedTrack.output._muxer.addEncodedAudioPacket(this._connectedTrack,t,e)}},va=class{constructor(t,e){this.source=t;this.encodingConfig=e;this.ensureEncoderPromise=null;this.encoderInitialized=!1;this.encoder=null;this.muxer=null;this.lastNumberOfChannels=null;this.lastSampleRate=null;this.isPcmEncoder=!1;this.outputSampleSize=null;this.writeOutputValue=null;this.customEncoder=null;this.customEncoderCallSerializer=new Or;this.customEncoderQueueSize=0;this.lastEndSampleIndex=null;this.resampler=null;this.error=null;this.errorSet=!1;this.lastMuxerPromise=Promise.resolve();this.closed=!1}setError(t){this.errorSet||(this.error=t,this.errorSet=!0)}async add(t,e){try{if(this.checkForEncoderError(),this.source._ensureValidAdd(),this.lastNumberOfChannels!==null&&this.lastSampleRate!==null){if(t.numberOfChannels!==this.lastNumberOfChannels||t.sampleRate!==this.lastSampleRate)throw new Error(`Audio parameters must remain constant. Expected ${this.lastNumberOfChannels} channels at ${this.lastSampleRate} Hz, got ${t.numberOfChannels} channels at ${t.sampleRate} Hz.`)}else this.lastNumberOfChannels=t.numberOfChannels,this.lastSampleRate=t.sampleRate;let r=this.encodingConfig;r.transform?.numberOfChannels!==void 0||r.transform?.sampleRate!==void 0?(this.resampler||(this.resampler=new $o({targetNumberOfChannels:r.transform.numberOfChannels??t.numberOfChannels,targetSampleRate:r.transform.sampleRate??t.sampleRate,onSample:async a=>{await this.processAndEncode(a,!0)}})),await this.resampler.add(t)):await this.processAndEncode(t,e)}finally{e&&t.close()}}async processAndEncode(t,e){let r=this.encodingConfig;if(r.transform?.sampleFormat!==void 0&&Fm(t.format)!==r.transform.sampleFormat){let n=Mm(t,r.transform.sampleFormat);e&&t.close(),t=n,e=!0}if(r.transform?.process)try{let n=r.transform.process(t);if(_(n)&&(n=await n),n===null)return;Array.isArray(n)||(n=[n]);try{for(let a of n)if(!(a instanceof Ce))throw new TypeError("The audio process function must return an AudioSample, null, or an array of AudioSamples.");for(let a of n)await this.encodeSample(a,!0)}finally{for(let a of n)a instanceof Ce&&a.close()}}finally{e&&t.close()}else await this.encodeSample(t,e)}async encodeSample(t,e){try{if(this.encoderInitialized||(this.ensureEncoderPromise||this.ensureEncoder(t),this.encoderInitialized||await this.ensureEncoderPromise),g(this.encoderInitialized),this.closed)return;{let r=Math.round(t.timestamp*t.sampleRate),n=Math.round((t.timestamp+t.duration)*t.sampleRate);if(this.lastEndSampleIndex===null)this.lastEndSampleIndex=n;else{let a=r-this.lastEndSampleIndex;if(a>=64){let s=new Ce({data:new Float32Array(a*t.numberOfChannels),format:"f32-planar",sampleRate:t.sampleRate,numberOfChannels:t.numberOfChannels,numberOfFrames:a,timestamp:this.lastEndSampleIndex/t.sampleRate});await this.encodeSample(s,!0)}this.lastEndSampleIndex+=t.numberOfFrames}}if(this.encodingConfig.onEncodedSample?.(t),this.customEncoder){this.customEncoderQueueSize++;let r=t.clone(),n=this.customEncoderCallSerializer.call(()=>this.customEncoder.encode(r)).catch(a=>this.setError(a)).finally(()=>{this.customEncoderQueueSize--,r.close()});this.customEncoderQueueSize>=4&&await n,await this.lastMuxerPromise}else if(this.isPcmEncoder)await this.doPcmEncoding(t,e);else{g(this.encoder);let r=t.toAudioData();this.encoder.encode(r),r.close(),e&&t.close(),this.encoder.encodeQueueSize>=4&&await new Promise(n=>this.encoder.addEventListener("dequeue",n,{once:!0})),await this.lastMuxerPromise}}finally{e&&t.close()}}async doPcmEncoding(t,e){g(this.outputSampleSize),g(this.writeOutputValue);let{numberOfChannels:r,numberOfFrames:n,sampleRate:a,timestamp:s}=t,o=2048,c=[];for(let b=0;b{let{numberOfChannels:e,sampleRate:r}=t,n=ai(this.encodingConfig.quality,this.encodingConfig.bitrate),a=xu({numberOfChannels:e,sampleRate:r,...this.encodingConfig,quality:n});this.encodingConfig.onEncoderConfig?.(a),this.source._nominalBitrate=a.bitrate??null;let s=An.find(o=>o.supports(this.encodingConfig.codec,a));if(s)this.customEncoder=new s,this.customEncoder.codec=this.encodingConfig.codec,this.customEncoder.config=a,this.customEncoder.onPacket=(o,c)=>{if(!(o instanceof X))throw new TypeError("The first argument passed to onPacket must be an EncodedPacket.");if(c!==void 0&&(!c||typeof c!="object"))throw new TypeError("The second argument passed to onPacket must be an object or undefined.");this.encodingConfig.onEncodedPacket?.(o,c),this.lastMuxerPromise=this.muxer.addEncodedAudioPacket(this.source._connectedTrack,o,c).catch(u=>{this.setError(u)})},this.customEncoder.onError=o=>{this.setError(o)},await this.customEncoder.init();else if(ae.includes(this.encodingConfig.codec))this.initPcmEncoder();else{if(typeof AudioEncoder>"u")throw new Error(Gi("AudioEncoder"));let o;try{o=(await AudioEncoder.isConfigSupported(a)).supported??!1}catch{o=!1}if(!o)throw new Error(`This specific encoder configuration (${a.codec}, ${a.bitrate} bps, ${a.numberOfChannels} channels, ${a.sampleRate} Hz) is not supported in this environment. Consider using another codec or changing your audio parameters.`);let c=new Error("Encoding error").stack;this.encoder=new AudioEncoder({output:(u,l)=>{if(this.encodingConfig.codec==="aac"&&l?.decoderConfig){let m=!1;if(!l.decoderConfig.description||l.decoderConfig.description.byteLength<2?m=!0:m=$t($(l.decoderConfig.description)).objectType===0,m){let f=Number(Z(a.codec.split(".")));l.decoderConfig.description=$i({objectType:f,outputNumberOfChannels:l.decoderConfig.numberOfChannels,outputSampleRate:l.decoderConfig.sampleRate})}}let d=X.fromEncodedChunk(u);d=d.clone({timestamp:qt(d.timestamp,a.sampleRate),duration:u.duration!=null?qt(d.duration,a.sampleRate):void 0}),this.encodingConfig.onEncodedPacket?.(d,l),this.lastMuxerPromise=this.muxer.addEncodedAudioPacket(this.source._connectedTrack,d,l).catch(m=>{this.setError(m)})},error:u=>{u.stack=c,this.setError(u)}}),this.encoder.configure(a)}g(this.source._connectedTrack),this.muxer=this.source._connectedTrack.output._muxer,this.encoderInitialized=!0})()}initPcmEncoder(){this.isPcmEncoder=!0;let t=this.encodingConfig.codec,{dataType:e,sampleSize:r,littleEndian:n}=Re(t);switch(this.outputSampleSize=r,r){case 1:e==="unsigned"?this.writeOutputValue=(a,s,o)=>a.setUint8(s,ee(Math.round(o*128)+128,0,255)):e==="signed"?this.writeOutputValue=(a,s,o)=>{a.setInt8(s,ee(Math.round(o*128),-128,127))}:e==="ulaw"?this.writeOutputValue=(a,s,o)=>{let c=ee(Math.round(o*32768),-32768,32767);a.setUint8(s,Nm(c))}:e==="alaw"?this.writeOutputValue=(a,s,o)=>{let c=ee(Math.round(o*32768),-32768,32767);a.setUint8(s,Wm(c))}:g(!1);break;case 2:e==="unsigned"?this.writeOutputValue=(a,s,o)=>a.setUint16(s,ee(Math.round(o*32768)+32768,0,65535),n):e==="signed"?this.writeOutputValue=(a,s,o)=>a.setInt16(s,ee(Math.round(o*32768),-32768,32767),n):g(!1);break;case 3:e==="unsigned"?this.writeOutputValue=(a,s,o)=>bi(a,s,ee(Math.round(o*8388608)+8388608,0,16777215),n):e==="signed"?this.writeOutputValue=(a,s,o)=>Ml(a,s,ee(Math.round(o*8388608),-8388608,8388607),n):g(!1);break;case 4:e==="unsigned"?this.writeOutputValue=(a,s,o)=>a.setUint32(s,ee(Math.round(o*2147483648)+2147483648,0,4294967295),n):e==="signed"?this.writeOutputValue=(a,s,o)=>a.setInt32(s,ee(Math.round(o*2147483648),-2147483648,2147483647),n):e==="float"?this.writeOutputValue=(a,s,o)=>a.setFloat32(s,o,n):g(!1);break;case 8:e==="float"?this.writeOutputValue=(a,s,o)=>a.setFloat64(s,o,n):g(!1);break;default:ne(r),g(!1)}}async flushAndClose(t){try{t||(this.checkForEncoderError(),this.resampler&&await this.resampler.finalize()),this.closed=!0,t||(this.customEncoder?this.customEncoderCallSerializer.call(()=>this.customEncoder.flush()):this.encoder&&await this.encoder.flush())}finally{this.closed=!0,this.resampler=null,this.customEncoder?await this.customEncoderCallSerializer.call(()=>this.customEncoder.close()).catch(e=>this.setError(e)):this.encoder&&this.encoder.state!=="closed"&&this.encoder.close()}t||this.checkForEncoderError()}getQueueSize(){return this.customEncoder?this.customEncoderQueueSize:this.isPcmEncoder?0:this.encoder?.encodeQueueSize??0}checkForEncoderError(){if(this.errorSet)throw this.error}},_a=class extends Mr{constructor(t){Po(t),super(t.codec),this._encoder=new va(this,t)}add(t){if(!(t instanceof Ce))throw new TypeError("audioSample must be an AudioSample.");return this._encoder.add(t,!1)}_flushAndClose(t){return this._encoder.flushAndClose(t)}},il=class extends Mr{constructor(t,e={}){if(Po(t),typeof e!="object"||!e)throw new TypeError("options must be an object.");if(e.startTimestamp!==void 0&&!Number.isFinite(e.startTimestamp))throw new TypeError("options.startTimestamp, when provided, must be a finite number.");super(t.codec),this._encoder=new va(this,t),this._accumulatedTime=e.startTimestamp??0}async add(t){if(!(t instanceof AudioBuffer))throw new TypeError("audioBuffer must be an AudioBuffer.");let e=Ce._fromAudioBuffer(t,this._accumulatedTime);this._accumulatedTime+=t.duration;for(let r of e)await this._encoder.add(r,!0)}_flushAndClose(t){return this._encoder.flushAndClose(t)}},nl=class extends Mr{constructor(e,r,n={}){if(!(e instanceof MediaStreamTrack)||e.kind!=="audio")throw new TypeError("track must be an audio MediaStreamTrack.");if(Po(r),typeof n!="object"||!n)throw new TypeError("options must be an object.");if(n.timestampBase!==void 0&&n.timestampBase!=="synced-zero"&&n.timestampBase!=="zero"&&n.timestampBase!=="unix")throw new TypeError("options.timestampBase, when provided, must be one of 'synced-zero', 'zero', or 'unix'.");super(r.codec);this._abortController=null;this._audioContext=null;this._scriptProcessorNode=null;this._promiseWithResolvers=J();this._errorPromiseAccessed=!1;this._paused=!1;this._options=n,this._encoder=new va(this,r),this._track=e}get errorPromise(){return this._errorPromiseAccessed=!0,this._promiseWithResolvers.promise}get paused(){return this._paused}async _start(){this._errorPromiseAccessed||z._warn("Make sure not to ignore the `errorPromise` field on MediaStreamAudioTrackSource, so that any internal errors get bubbled up properly."),this._abortController=new AbortController;let e=null,r=!1,n=null,a=0,s=o=>{if(r){o.close();return}let c=o.timestamp;if(this._paused){if(e!==null){if(n!==null&&this._options.timestampBase!=="unix"){let l=c-n;a-=l}n=c}o.close();return}if(e===null){e=o.timestamp;let u,l=this._options.timestampBase??"synced-zero";if(l==="unix")u=Date.now()/1e3;else if(l==="zero")u=0;else{let d=this._connectedTrack.output;d._firstMediaStreamTimestamp===null?(d._firstMediaStreamTimestamp=performance.now()/1e3,u=0):u=performance.now()/1e3-d._firstMediaStreamTimestamp}a=u-e}if(n=c,this._encoder.getQueueSize()>=8){o.close();return}o.setTimestamp(c+a),this._encoder.add(o,!0).catch(u=>{r=!0,this._abortController?.abort(),this._promiseWithResolvers.reject(u),this._audioContext?.suspend()})};if(typeof MediaStreamTrackProcessor<"u"){let o=new MediaStreamTrackProcessor({track:this._track}),c=new WritableStream({write:u=>s(new Ce(u))});o.readable.pipeTo(c,{signal:this._abortController.signal}).catch(u=>{u instanceof DOMException&&u.name==="AbortError"||this._promiseWithResolvers.reject(u)})}else{let o=window.AudioContext||window.webkitAudioContext;this._audioContext=new o({sampleRate:this._track.getSettings().sampleRate});let c=this._audioContext.createMediaStreamSource(new MediaStream([this._track]));this._scriptProcessorNode=this._audioContext.createScriptProcessor(4096),this._audioContext.state==="suspended"&&await this._audioContext.resume(),c.connect(this._scriptProcessorNode),this._scriptProcessorNode.connect(this._audioContext.destination);let u=0;this._scriptProcessorNode.onaudioprocess=l=>{let d=Ce._fromAudioBuffer(l.inputBuffer,u);u+=l.inputBuffer.duration;for(let m of d)s(m)}}}pause(){this._paused=!0}resume(){this._paused=!1}async _flushAndClose(e){try{this._abortController&&(this._abortController.abort(),this._abortController=null),this._audioContext&&(g(this._scriptProcessorNode),this._scriptProcessorNode.disconnect(),await this._audioContext.suspend())}finally{await this._encoder.flushAndClose(e)}}},Vg=()=>{let i=(r,n)=>{n?self.postMessage(r,{transfer:n}):self.postMessage(r)};i({type:"support",supported:typeof MediaStreamTrackProcessor<"u"});let t=new Map,e=new Map;self.addEventListener("message",r=>{let n=r.data;switch(n.type){case"videoTrack":{e.set(n.trackId,n.track);let a=new MediaStreamTrackProcessor({track:n.track}),s=new WritableStream({write:c=>{if(!e.has(n.trackId)){c.close();return}i({type:"videoFrame",trackId:n.trackId,videoFrame:c},[c])}}),o=new AbortController;t.set(n.trackId,o),a.readable.pipeTo(s,{signal:o.signal}).catch(c=>{c instanceof DOMException&&c.name==="AbortError"||i({type:"error",trackId:n.trackId,error:c})})}break;case"stopTrack":{let a=t.get(n.trackId);a&&(a.abort(),t.delete(n.trackId)),e.get(n.trackId)?.stop(),e.delete(n.trackId),i({type:"trackStopped",trackId:n.trackId})}break;default:ne(n)}})},Ug=0,xt=null,zg=()=>{let i=new Blob([`(${Vg.toString()})()`],{type:"application/javascript"}),t=URL.createObjectURL(i);xt=new Worker(t)},Yu=null,Ng=async()=>Yu!==null?Yu:(xt||zg(),new Promise(i=>{g(xt);let t=e=>{let r=e.data;r.type==="support"&&(Yu=r.supported,xt.removeEventListener("message",t),i(r.supported))};xt.addEventListener("message",t)})),Zu=(i,t)=>{g(xt),t?xt.postMessage(i,t):xt.postMessage(i)},Bn=class extends Fn{constructor(t){if(super(),!Ye.includes(t))throw new TypeError(`Invalid subtitle codec '${t}'. Must be one of: ${Ye.join(", ")}.`);this._codec=t}},al=class extends Bn{constructor(e){super(e);this._error=null;this._errorSet=!1;this._lastMuxerPromise=Promise.resolve();this._parser=new Uo({codec:e,output:(r,n)=>{this._lastMuxerPromise=this._connectedTrack.output._muxer.addSubtitleCue(this._connectedTrack,r,n).catch(a=>{this._setError(a)})}})}add(e){if(typeof e!="string")throw new TypeError("text must be a string.");return this._checkForError(),this._ensureValidAdd(),this._parser.parse(e),this._lastMuxerPromise}_setError(e){this._errorSet||(this._error=e,this._errorSet=!0)}_checkForError(){if(this._errorSet)throw this._error}async _flushAndClose(e){e||this._checkForError()}};var Af=i=>i==="opus"?"Opus":i,Zo=class extends Pe{constructor(e,r){if(!(e._target instanceof pt))throw new TypeError("HLS outputs require `OutputOptions.target` to be a PathedTarget.");super(e);this.trackDatas=[];this.isRelativeToUnixEpoch=!1;this.numWrittenMasterPlaylists=0;this.playlists=[];this.playlistDeclarations=[];this.format=r,this.targetSegmentDuration=r._options.targetDuration??2,this.singleFilePerPlaylist=r._options.singleFilePerPlaylist??!1,this.isLive=r._options.live??!1,this.maxLiveSegmentCount=r._options.maxLiveSegmentCount??1/0,this.globalTargetDuration=this.targetSegmentDuration,this.getPlaylistPath=r._options.getPlaylistPath??(({n})=>`playlist-${n}.m3u8`),this.getSegmentPath=r._options.getSegmentPath??(n=>n.isSingleFile?`segments-${n.playlist.n}${n.format.fileExtension}`:`segment-${n.playlist.n}-${n.n}${n.format.fileExtension}`),this.getInitPath=r._options.getInitPath??(n=>`init-${n.n}${n.segmentFormat.fileExtension}`)}async start(){let e=await this.mutex.acquire(),r=this.output.tracks.some(y=>y.metadata.isRelativeToUnixEpoch),n=this.output.tracks.some(y=>!y.metadata.isRelativeToUnixEpoch);if(r&&n)throw new Error("All tracks must agree on `relativeToUnixEpoch`: some tracks are relative to the Unix epoch and some are not.");this.isRelativeToUnixEpoch=r;let a=new Map,s=[],o=!1,c=!1,u=!1;for(let y of this.output.tracks){y.type==="video"&&(o=!0);let k=new Map;for(let T of this.output.tracks){if(y===T||!y.canBePairedWith(T))continue;if(y.type===T.type){c||(z._warn(`Illegal pairing of two ${y.type} tracks detected, which is not possible in HLS; treating them as unpaired.`),c=!0);continue}if(y.isVideoTrack()&&y.metadata.hasOnlyKeyPackets||T.isVideoTrack()&&T.metadata.hasOnlyKeyPackets){u||(z._warn("A key-packets-only video track is pairable with another track, which is not possible in HLS; treating them as unpaired."),u=!0);continue}let w=k.get(T.source._codec);w||k.set(T.source._codec,w=[]),w.push(T)}for(let[,T]of k){let w=T.map(C=>C.id).join("-");s.find(C=>C.key===w)||s.push({name:T[0].type+"-"+(s.length+1),key:w,tracks:T,needsEmit:!1,firstNoUri:!1});let x=a.get(y);x||a.set(y,x=[]),x.push(w)}}let l=o?"video":"audio",d=[],m=[],f=[];for(let y of this.output.tracks){let k=a.get(y);if(k){if(g(k.length>0),y.type!==l)continue;for(let T of k){let w=s.find(A=>A.key===T);if(g(w),k.length===1&&w.tracks.length===1){let A=a.get(w.tracks[0]);if(g(A!==void 0),A.length===1){let x=s.find(C=>C.key===A[0]);if(x.tracks.length===1){g(x.tracks[0]===y),d.push({tracks:[y,w.tracks[0]],linkedGroup:null});continue}}}d.push({tracks:[y],linkedGroup:w}),w.needsEmit=!0}}else y.type==="video"?m.push(y):y.type==="audio"&&f.push(y)}let p=({metadata:y})=>{let k="";return k+=`${y.languageCode??se}-`,k+=`${y.name??""}-`,k+=`${y.disposition?.default??!0}-`,k+=`${y.disposition?.primary??!1}-`,k+=`${y.disposition?.forced??!1}-`,k};if(m.length>0)if(new Set(m.map(p)).size>1){let k={key:m.map(T=>T.id).join("-"),name:"video-"+(s.length+1),tracks:m,needsEmit:!0,firstNoUri:!0};s.push(k),d.push({tracks:[m[0]],linkedGroup:k})}else for(let k of m)d.push({tracks:[k],linkedGroup:null});if(f.length>0)if(new Set(f.map(p)).size>1){let k={key:f.map(T=>T.id).join("-"),name:"audio-"+(s.length+1),tracks:f,needsEmit:!0,firstNoUri:!0};s.push(k),d.push({tracks:[f[0]],linkedGroup:k})}else for(let k of f)d.push({tracks:[k],linkedGroup:null});let b=y=>{let k=[],T=0,w=0,A=!1,x=null,C=-1/0;for(let P of y)P.isVideoTrack()?(T++,A||=(P.metadata.rotation??0)!==0||!!P.metadata.flip||!!P.metadata.transformationMatrix):P.isAudioTrack()&&w++,k.push(P.source._codec);for(let P of jt(this.format._options.segmentFormat)){let S=P.getSupportedCodecs(),I=P.getSupportedTrackCounts();if(k.some(v=>!S.includes(v))||TI.video.max||wI.audio.max)continue;let E=0;A&&P.supportsVideoTransformationMetadata&&E++,E>C&&(x=P,C=E)}return g(x),x},h=async y=>{if(y.some(x=>this.playlists.some(C=>C.tracks.includes(x))))throw new Error("Internal error: track is already registered in a playlist.");let k=b(y),T=this.playlists.length+1,w=await this.getPlaylistPath({n:T,tracks:y,segmentFormat:k});Lg(w);let A={id:this.playlists.length+1,path:w,tracks:y,segmentFormat:k,currentSegmentStartTimestamp:null,currentSegmentStartTimestampIsFixed:!1,nextSegmentId:1,initSegment:null,writtenSegments:[],peakBitrate:null,averageBitrate:null,mediaSequence:0,done:!1,singleFile:null,mutex:new Le};return this.playlists.push(A),A};for(let y of s)if(y.needsEmit)for(let k=0;kA.tracks[0].id===T.id);w??=await h([T]),this.playlistDeclarations.push({playlist:w,groupId:y.name,noUri:y.firstNoUri&&k===0,references:[]})}for(let y of d){let k=this.playlists.find(T=>T.tracks[0].id===y.tracks[0].id);k??=await h(y.tracks),this.playlistDeclarations.push({playlist:k,groupId:null,noUri:!1,references:y.linkedGroup?this.playlistDeclarations.filter(T=>T.groupId===y.linkedGroup.name):[]})}for(let y of this.output.tracks)y.isVideoTrack()&&y.metadata.decoderConfig?this.getVideoTrackData(y,y.metadata.primingPacket??null,{decoderConfig:y.metadata.decoderConfig}):y.isAudioTrack()&&y.metadata.decoderConfig&&this.getAudioTrackData(y,y.metadata.primingPacket??null,{decoderConfig:y.metadata.decoderConfig});e()}async getMimeType(){return nr}allTracksAreKnown(e){for(let r of e.tracks)if(!r.source._closed&&!this.trackDatas.some(n=>n.track===r))return!1;return!0}async onTrackClose(e){let r=this.trackDatas.find(s=>s.track===e);r&&(r.closed=!0);let n=this.playlists.find(s=>s.tracks.includes(e));g(n);let a=await n.mutex.acquire();try{await this.advancePlaylist(n)}finally{a()}}getVideoTrackData(e,r,n){let a=this.trackDatas.find(o=>o.track===e);if(a)return a;tr(n,e.source._codec),g(n),g(n?.decoderConfig);let s=this.playlists.filter(o=>o.tracks.includes(e));return g(s.length===1),a={track:e,packets:[],playlist:s[0],closed:!1,info:{type:"video",decoderConfig:n.decoderConfig,primingPacket:r}},this.trackDatas.push(a),a}getAudioTrackData(e,r,n){let a=this.trackDatas.find(o=>o.track===e);if(a)return a;Se(n,e.source._codec),g(n),g(n?.decoderConfig);let s=this.playlists.filter(o=>o.tracks.includes(e));return g(s.length===1),a={track:e,packets:[],playlist:s[0],closed:!1,info:{type:"audio",decoderConfig:n.decoderConfig,primingPacket:r}},this.trackDatas.push(a),a}async addEncodedVideoPacket(e,r,n){let a=this.getVideoTrackData(e,r,n),s=a.playlist,o=await s.mutex.acquire();try{this.validateTimestamp(e,r.timestamp,r.type==="key"),a.packets.push(r),s.currentSegmentStartTimestamp===null?s.currentSegmentStartTimestamp=r.timestamp:s.currentSegmentStartTimestampIsFixed||(s.currentSegmentStartTimestamp=Math.min(s.currentSegmentStartTimestamp,r.timestamp)),await this.advancePlaylist(s)}finally{o()}}async addEncodedAudioPacket(e,r,n){let a=this.getAudioTrackData(e,r,n),s=a.playlist,o=await s.mutex.acquire();try{this.validateTimestamp(e,r.timestamp,r.type==="key"),a.packets.push(r),s.currentSegmentStartTimestamp===null?s.currentSegmentStartTimestamp=r.timestamp:s.currentSegmentStartTimestampIsFixed||(s.currentSegmentStartTimestamp=Math.min(s.currentSegmentStartTimestamp,r.timestamp)),await this.advancePlaylist(s)}finally{o()}}async addSubtitleCue(e,r,n){throw new Error("Unreachable.")}async advancePlaylist(e){if(g(!e.done),!this.allTracksAreKnown(e))return;let r=this.trackDatas.filter(s=>e.tracks.includes(s.track));if(e.currentSegmentStartTimestamp===null){r.every(s=>s.closed)&&await this.onPlaylistDone(e);return}let n=r.find(s=>s.info.type==="video"),a=r.find(s=>s.info.type==="audio");for(;;){let s=e.currentSegmentStartTimestamp+this.targetSegmentDuration,o=0,c=0;if(n&&(!n.closed||n.packets.length>0)){let x=n.packets.every(S=>S.timestamps)break;S>0&&I.type==="key"&&(C=I,P=S)}if(P!==null){if(o=P,a){let S=a.packets.findIndex(I=>I.timestamp>=C.timestamp);if(S!==-1)c=S;else if(a.closed)c=a.packets.length;else return}}else{if(!n.closed)return;o=n.packets.length;let S=Wl(n.packets,E=>E.timestamp),I=n.packets[S];if(g(I),a)if(I.timestampv.timestamp>=s);if(E!==-1)c=E;else if(a.closed)c=a.packets.length;else return}else{let E=a.packets.findIndex(v=>v.timestamp>I.timestamp);if(E!==-1)c=E;else if(a.closed)c=a.packets.length;else return}}}else if(a&&(!a.closed||a.packets.length>0))if(a.packets.every(C=>C.timestampP.timestamp<=s);c=Math.max(C,1)}if(o===0&&c===0){r.every(C=>C.closed)&&await this.onPlaylistDone(e);return}let u=null,l,d;g(this.output._target instanceof pt);let m=this.output._target;if(this.singleFilePerPlaylist)if(e.singleFile===null){let x={n:e.nextSegmentId,format:e.segmentFormat,isSingleFile:!0,playlist:Yo(e)};l=await this.getSegmentPath(x),xf(l),d=we(we(m.rootPath,e.path),l);let C=await this.output._getTarget({path:d,isRoot:!1,mimeType:e.segmentFormat.mimeType}),P=null;if(e.segmentFormat._isFragmentedIsobmff()){P={output:new Br({format:e.segmentFormat,target:C}),videoSource:null,audioSource:null,firstMoofPosition:null,currentFileSize:0},C.on("write",({end:E})=>{P.currentFileSize=Math.max(P.currentFileSize,E)});let S=P.output._muxer;S.minimumFragmentDuration=1/0;let I=S.formatOptions.onMoof;S.formatOptions.onMoof=(E,v,F)=>{P.firstMoofPosition=v,I?.(E,v,F),S.formatOptions.onMoof=I},n&&(P.videoSource=new ui(n.track.source._codec),P.output.addVideoTrack(P.videoSource,{...n.track.metadata,decoderConfig:n.info.decoderConfig,primingPacket:n.info.primingPacket??void 0})),a&&(P.audioSource=new li(a.track.source._codec),P.output.addAudioTrack(P.audioSource,{...a.track.metadata,decoderConfig:a.info.decoderConfig,primingPacket:a.info.primingPacket??void 0})),await P.output.start()}else C._start();e.singleFile={target:C,path:l,nextOffset:0,info:x,fragmentedIsobmffOutput:P}}else l=e.singleFile.path,d=we(we(m.rootPath,e.path),l);else u={n:e.nextSegmentId,format:e.segmentFormat,isSingleFile:!1,playlist:Yo(e)},l=await this.getSegmentPath(u),xf(l),d=we(we(m.rootPath,e.path),l),e.nextSegmentId++;let f=0,p=null,b=-1/0,h=null,y=null,k=null;try{if(e.singleFile?.fragmentedIsobmffOutput?(h=e.singleFile.fragmentedIsobmffOutput.output,y=e.singleFile.fragmentedIsobmffOutput.videoSource,k=e.singleFile.fragmentedIsobmffOutput.audioSource):(h=new Br({format:e.segmentFormat,target:new pt(d,async x=>{let C={...x,isRoot:!1};if(x.isRoot)if(e.singleFile){let P=e.singleFile.target.slice(e.singleFile.nextOffset);return P.on("write",({end:S})=>f=Math.max(f,S)),P}else{let P=await this.output._getTarget(C);return p=P,P.on("write",({end:S})=>f=Math.max(f,S)),P}return this.output._getTarget(C)}),initTarget:async()=>{if(e.initSegment)return new Ni;if(e.singleFile){e.initSegment={path:e.singleFile.path,duration:0,timestamp:0,byteSize:0,byteOffset:0,info:null};let x=e.singleFile.target.slice(e.singleFile.nextOffset);return x.on("write",({end:C})=>{e.initSegment.byteSize=Math.max(e.initSegment.byteSize,C)}),x.on("finalized",()=>{e.singleFile.nextOffset=e.initSegment.byteSize}),x}else{let x=Yo(e),C=await this.getInitPath(x);Wg(C),e.initSegment={path:C,duration:0,timestamp:0,byteSize:0,byteOffset:null,info:null};let P=we(we(m.rootPath,e.path),C),S=await this.output._getTarget({path:P,isRoot:!1,mimeType:e.segmentFormat.mimeType});return S.on("write",({end:I})=>{e.initSegment.byteSize=Math.max(e.initSegment.byteSize,I)}),S.on("finalized",()=>{this.format._options.onInit?.(S,x)}),S}}}),n&&(y=new ui(n.track.source._codec),h.addVideoTrack(y,{...n.track.metadata,decoderConfig:n.info.decoderConfig,primingPacket:n.info.primingPacket??void 0})),a&&(k=new li(a.track.source._codec),h.addAudioTrack(k,{...a.track.metadata,decoderConfig:a.info.decoderConfig,primingPacket:a.info.primingPacket??void 0})),await h.start()),n){g(y);let x={decoderConfig:n.info.decoderConfig};for(let C=0;C0&&(g(n),n.packets.splice(0,o)),c>0&&(g(a),a.packets.splice(0,c));let T=1/0;n&&n.packets.length>0&&(T=n.packets[0].timestamp),a&&a.packets.length>0&&(T=Math.min(T,a.packets[0].timestamp));let w=T<1/0?T:b;g(Number.isFinite(w));let A=w-e.currentSegmentStartTimestamp;if(g(A>=0),e.writtenSegments.push({path:l,duration:A,timestamp:e.currentSegmentStartTimestamp,byteSize:f,byteOffset:e.singleFile?e.singleFile.nextOffset:null,info:u??null}),this.globalTargetDuration=Math.max(this.globalTargetDuration,A),e.currentSegmentStartTimestamp=w,e.currentSegmentStartTimestampIsFixed=!0,e.singleFile&&(e.singleFile.nextOffset+=f),this.isLive){for(;e.writtenSegments.length>this.maxLiveSegmentCount;){let x=e.writtenSegments.shift();e.mediaSequence++,this.singleFilePerPlaylist||(g(x.info),this.format._options.onSegmentPopped?.(x.path,x.info))}await this.writePlaylist(e),await this.tryWriteMasterPlaylist()}}}async onPlaylistDone(e){g(!e.done),e.done=!0,e.singleFile&&(e.singleFile.fragmentedIsobmffOutput?await e.singleFile.fragmentedIsobmffOutput.output.finalize():(await e.singleFile.target._flush(),await e.singleFile.target._finalize()),this.format._options.onSegment?.(e.singleFile.target,e.singleFile.info)),await this.writePlaylist(e),this.isLive&&e.writtenSegments.length===0&&await this.tryWriteMasterPlaylist()}updatePlaylistBitrates(e){let r=e.writtenSegments,n=0,a=0,s=0;for(let c=0;c=.5*this.globalTargetDuration&&l<=1.5*this.globalTargetDuration&&(n=Math.max(n,8*u/l)),!(l>1.5*this.globalTargetDuration));d++);}if(n===0)for(let c of r){let u=c.duration||1;n=Math.max(n,8*c.byteSize/u)}for(let c of r)a+=8*c.byteSize;let o=a/(s||1);if(r.length===0)for(let c of e.tracks){let u=this.trackDatas.find(d=>d.track===c),l=c.source._nominalBitrate??c.metadata.bitrate??0;if(o+=c.source._nominalBitrate??c.metadata.averageBitrate??0,l===0){let d=new ce("medium");if(c.isVideoTrack()){let m=u?.info.decoderConfig;l=d._toVideoBitrate(c.source._codec,m?.codedWidth??1920,m?.codedHeight??1080)}else c.isAudioTrack()&&(l=d._toAudioBitrate(c.source._codec)??0)}n+=l}e.peakBitrate=n,e.averageBitrate=o}async writePlaylist(e){g(this.output._target instanceof pt);let r=this.output._target;this.updatePlaylistBitrates(e);let n=!1;for(let m of e.writtenSegments)n||=m.byteOffset!==null;let a=e.tracks[0].isVideoTrack()&&e.tracks[0].metadata.hasOnlyKeyPackets,s=3;(a||n)&&(s=4),e.initSegment&&(s=5),e.initSegment&&!a&&(s=6);let o=this.isLive?this.targetSegmentDuration:this.globalTargetDuration,c=we(r.rootPath,e.path),u=`#EXTM3U +#EXT-X-VERSION:${s} +`+(this.isLive?"":`#EXT-X-PLAYLIST-TYPE:VOD +`)+`#EXT-X-TARGETDURATION:${Math.ceil(o)} +`+(Number.isFinite(this.maxLiveSegmentCount)?`#EXT-X-MEDIA-SEQUENCE:${e.mediaSequence} +`:"")+`#EXT-X-INDEPENDENT-SEGMENTS +`+(a?`#EXT-X-I-FRAMES-ONLY +`:"")+(e.initSegment?`#EXT-X-MAP:URI="${e.initSegment.path}"`+(e.initSegment.byteOffset!==null?`,BYTERANGE="${e.initSegment.byteSize}@${e.initSegment.byteOffset}"`:"")+` +`:"")+` +`+e.writtenSegments.map(m=>`#EXTINF:${+m.duration.toFixed(12)}, +`+(this.isRelativeToUnixEpoch?`#EXT-X-PROGRAM-DATE-TIME:${new Date(1e3*m.timestamp).toISOString()} +`:"")+(m.byteOffset!==null?`#EXT-X-BYTERANGE:${m.byteSize}@${m.byteOffset} +`:"")+`${m.path} +`).join("")+(e.done?(e.writtenSegments.length>0?` +`:"")+`#EXT-X-ENDLIST +`:"");this.format._options.onPlaylist?.(u,Yo(e));let l=await this.output._getTarget({path:c,isRoot:!1,mimeType:nr}),d=new lr(l,!0);d.start(),d.write(Y.encode(u)),await d.flush(),await d.finalize()}async writeMasterPlaylist(){g(this.output._target instanceof pt);let e=this.output._target,r=`#EXTM3U +`,n=!1,a=null,s=0,o=!1;for(let u of this.playlistDeclarations)if(u.groupId===null){let l=u.playlist.tracks[0].isVideoTrack()&&u.playlist.tracks[0].metadata.hasOnlyKeyPackets,d=[];for(let y of u.playlist.tracks){let T=this.trackDatas.find(w=>w.track===y)?.info.decoderConfig.codec??y.source._codec;d.push(Af(T))}let m=0,f=0;if(u.references.length>0){let k=u.references[0].playlist.tracks[0],w=this.trackDatas.find(A=>A.track===k)?.info.decoderConfig.codec??k.source._codec;d.push(Af(w));for(let A of u.references)g(A.playlist.peakBitrate!==null),m=Math.max(m,A.playlist.peakBitrate),f=Math.max(f,A.playlist.averageBitrate??0)}g(u.playlist.peakBitrate!==null);let p=u.playlist.peakBitrate+m,b=(u.playlist.averageBitrate??0)+f;n||(r+=` +`,n=!0),l?r+="#EXT-X-I-FRAME-STREAM-INF:":r+="#EXT-X-STREAM-INF:",r+=`BANDWIDTH=${Math.ceil(p)}`,b>0&&(r+=`,AVERAGE-BANDWIDTH=${Math.ceil(b)}`),r+=`,CODECS="${d.join(",")}"`;let h=u.playlist.tracks.find(y=>y.isVideoTrack());if(h?.isVideoTrack()){let k=this.trackDatas.find(T=>T.track===h)?.info.decoderConfig;if(k){let T=k.displayAspectWidth??k.codedWidth,w=k.displayAspectHeight??k.codedHeight;T!==void 0&&w!==void 0&&(h.metadata.rotation!==void 0&&h.metadata.rotation%180===90&&([T,w]=[w,T]),r+=`,RESOLUTION=${T}x${w}`)}!l&&h.metadata.frameRate!==void 0&&(r+=`,FRAME-RATE=${+h.metadata.frameRate.toFixed(3)}`)}if(!l){let y=new Map;for(let k of u.references){g(k.groupId!==null);let T=k.playlist.tracks[0].type;y.set(T,k.groupId)}for(let[k,T]of y)r+=`,${k.toUpperCase()}="${T}"`}l?(r+=`,URI="${u.playlist.path}"`,r+=` +`):(r+=` +`,r+=`${u.playlist.path} +`)}else{g(u.playlist.tracks.length===1);let l=u.playlist.tracks[0],d=l.type,m=l.metadata.name??null,f=l.metadata.languageCode,p=l.metadata.disposition;(a===null||u.groupId!==a)&&(s=0,r+=` +`,o=!1),a=u.groupId,s++,r+=`#EXT-X-MEDIA:TYPE=${d.toUpperCase()},GROUP-ID="${u.groupId}"`,m!==null&&/[\n\r"]/.test(m)&&(z._warn("Dropping track name since it includes a line feed, carriage return, or double quote character, which are not allowed in HLS playlist attributes."),m=null),m??=`${f??u.groupId}-${s}`,r+=`,NAME="${m}"`,f!==void 0&&(r+=`,LANGUAGE="${f}"`);let b=p?.primary??!1,h=p?.default??!0,y=p?.forced??!1;if(b&&!o&&(r+=",DEFAULT=YES",o=!0),(b||h)&&(r+=",AUTOSELECT=YES"),y&&(r+=",FORCED=YES"),d==="audio"){let T=this.trackDatas.find(w=>w.track===l)?.info.decoderConfig;T&&(r+=`,CHANNELS="${T.numberOfChannels}"`)}u.noUri||(r+=`,URI="${u.playlist.path}"`),r+=` +`}this.format._options.onMaster?.(r);let c=await this.mutex.acquire();try{let u;if(this.numWrittenMasterPlaylists===0)u=await this.output._getRootWriter(!0);else{let l=await this.output._getTarget({path:e.rootPath,isRoot:!0,mimeType:nr});u=new lr(l,!0),u.start()}u.write(Y.encode(r)),await u.flush(),await u.finalize(),this.numWrittenMasterPlaylists++}finally{c()}}async tryWriteMasterPlaylist(){g(this.isLive);for(let e of this.playlists)if(e.writtenSegments.length===0&&!e.done)return;await this.writeMasterPlaylist()}async finalize(){(await Promise.all(this.playlists.map(r=>r.mutex.acquire()))).forEach(r=>r());for(let r of this.trackDatas)r.closed=!0;await Promise.all(this.playlists.map(r=>r.done?Promise.resolve():this.advancePlaylist(r))),this.isLive||await this.writeMasterPlaylist()}},Lg=i=>{if(typeof i!="string")throw new TypeError("options.getPlaylistPath must return or resolve to a string");if(/[\n\r"]/.test(i))throw new TypeError("Playlist paths cannot contain line feed, carriage return, or double quote characters.")},xf=i=>{if(typeof i!="string")throw new TypeError("options.getSegmentPath must return or resolve to a string");if(/[\n\r"]/.test(i))throw new TypeError("Segment paths cannot contain line feed or carriage return characters.")},Wg=i=>{if(typeof i!="string")throw new TypeError("options.getInitPath must return or resolve to a string");if(/[\n\r"]/.test(i))throw new TypeError("Init paths cannot contain line feed, carriage return, or double quote characters.")},Yo=i=>({n:i.id,tracks:i.tracks,segmentFormat:i.segmentFormat});var Ke=class{get supportsVideoRotationMetadata(){return this.supportsVideoTransformationMetadata}getSupportedVideoCodecs(){return this.getSupportedCodecs().filter(t=>le.includes(t))}getSupportedAudioCodecs(){return this.getSupportedCodecs().filter(t=>fe.includes(t))}getSupportedSubtitleCodecs(){return this.getSupportedCodecs().filter(t=>Ye.includes(t))}_codecUnsupportedHint(t){return""}_isFragmentedIsobmff(){return!1}},On=class extends Ke{constructor(t={}){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.fastStart!==void 0&&![!1,"in-memory","reserve","fragmented"].includes(t.fastStart))throw new TypeError("options.fastStart, when provided, must be false, 'in-memory', 'reserve', or 'fragmented'.");if(t.minimumFragmentDuration!==void 0&&(!ve(t.minimumFragmentDuration)||t.minimumFragmentDuration<0))throw new TypeError("options.minimumFragmentDuration, when provided, must be a non-negative number.");if(t.onFtyp!==void 0&&typeof t.onFtyp!="function")throw new TypeError("options.onFtyp, when provided, must be a function.");if(t.onMoov!==void 0&&typeof t.onMoov!="function")throw new TypeError("options.onMoov, when provided, must be a function.");if(t.onMdat!==void 0&&typeof t.onMdat!="function")throw new TypeError("options.onMdat, when provided, must be a function.");if(t.onMoof!==void 0&&typeof t.onMoof!="function")throw new TypeError("options.onMoof, when provided, must be a function.");if(t.metadataFormat!==void 0&&!["mdir","mdta","udta","auto"].includes(t.metadataFormat))throw new TypeError("options.metadataFormat, when provided, must be either 'auto', 'mdir', 'mdta', or 'udta'.");super(),this._options=t}getSupportedTrackCounts(){return{video:{min:0,max:4294967295},audio:{min:0,max:4294967295},subtitle:{min:0,max:4294967295},total:{min:0,max:4294967295}}}get supportsVideoTransformationMetadata(){return!0}get supportsTimestampedMediaData(){return!0}get negativeTimestampSupport(){return"full"}_createMuxer(t){return new Wo(t,this)}_isFragmentedIsobmff(){return this._options.fastStart==="fragmented"}},Dn=class extends On{constructor(t){super(t)}get _name(){return"MP4"}get fileExtension(){return".mp4"}get mimeType(){return"video/mp4"}getSupportedCodecs(){return[...le,...Rt,"pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be",...Ye]}_codecUnsupportedHint(t){return new Rn().getSupportedCodecs().includes(t)?" Switching to MOV will grant support for this codec.":""}},_n=class extends On{constructor(t){super(t)}get _name(){return"CMAF"}get fileExtension(){return".m4s"}get mimeType(){return"video/mp4"}getSupportedCodecs(){return[...le,...Rt,"pcm-s16","pcm-s16be","pcm-s24","pcm-s24be","pcm-s32","pcm-s32be","pcm-f32","pcm-f32be","pcm-f64","pcm-f64be",...Ye]}},Rn=class extends On{constructor(t){super(t)}get _name(){return"MOV"}get fileExtension(){return".mov"}get mimeType(){return"video/quicktime"}getSupportedCodecs(){return[...le,...fe]}_codecUnsupportedHint(t){return new Dn().getSupportedCodecs().includes(t)?" Switching to MP4 will grant support for this codec.":""}},Ra=class extends Ke{constructor(t={}){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.appendOnly!==void 0&&typeof t.appendOnly!="boolean")throw new TypeError("options.appendOnly, when provided, must be a boolean.");if(t.minimumClusterDuration!==void 0&&(!ve(t.minimumClusterDuration)||t.minimumClusterDuration<0))throw new TypeError("options.minimumClusterDuration, when provided, must be a non-negative number.");if(t.onEbmlHeader!==void 0&&typeof t.onEbmlHeader!="function")throw new TypeError("options.onEbmlHeader, when provided, must be a function.");if(t.onSegmentHeader!==void 0&&typeof t.onSegmentHeader!="function")throw new TypeError("options.onHeader, when provided, must be a function.");if(t.onCluster!==void 0&&typeof t.onCluster!="function")throw new TypeError("options.onCluster, when provided, must be a function.");super(),this._options=t}_createMuxer(t){return new Ho(t,this)}get _name(){return"Matroska"}getSupportedTrackCounts(){return{video:{min:0,max:127},audio:{min:0,max:127},subtitle:{min:0,max:127},total:{min:0,max:127}}}get fileExtension(){return".mkv"}get mimeType(){return"video/x-matroska"}getSupportedCodecs(){return[...le,...Rt,...ae.filter(t=>!["pcm-s8","pcm-f32be","pcm-f64be","ulaw","alaw"].includes(t)),...Ye]}get supportsVideoTransformationMetadata(){return!1}get supportsTimestampedMediaData(){return!0}get negativeTimestampSupport(){return"prefer-non-negative"}},Li=class extends Ra{constructor(t){super(t)}getSupportedCodecs(){return[...le.filter(t=>["vp8","vp9","av1"].includes(t)),...fe.filter(t=>["opus","vorbis"].includes(t)),...Ye]}get _name(){return"WebM"}get fileExtension(){return".webm"}get mimeType(){return"video/webm"}_codecUnsupportedHint(t){return new Ra().getSupportedCodecs().includes(t)?" Switching to MKV will grant support for this codec.":""}},sl=class extends Ke{constructor(t={}){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.xingHeader!==void 0&&typeof t.xingHeader!="boolean")throw new TypeError("options.xingHeader, when provided, must be a boolean.");if(t.onXingFrame!==void 0&&typeof t.onXingFrame!="function")throw new TypeError("options.onXingFrame, when provided, must be a function.");super(),this._options=t}_createMuxer(t){return new Ko(t,this)}get _name(){return"MP3"}getSupportedTrackCounts(){return{video:{min:0,max:0},audio:{min:1,max:1},subtitle:{min:0,max:0},total:{min:1,max:1}}}get fileExtension(){return".mp3"}get mimeType(){return"audio/mpeg"}getSupportedCodecs(){return["mp3"]}get supportsVideoTransformationMetadata(){return!1}get supportsTimestampedMediaData(){return!1}get negativeTimestampSupport(){return null}},ol=class extends Ke{constructor(t={}){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.large!==void 0&&typeof t.large!="boolean")throw new TypeError("options.large, when provided, must be a boolean.");if(t.metadataFormat!==void 0&&!["info","id3"].includes(t.metadataFormat))throw new TypeError("options.metadataFormat, when provided, must be either 'info' or 'id3'.");if(t.onHeader!==void 0&&typeof t.onHeader!="function")throw new TypeError("options.onHeader, when provided, must be a function.");super(),this._options=t}_createMuxer(t){return new Xo(t,this)}get _name(){return"WAVE"}getSupportedTrackCounts(){return{video:{min:0,max:0},audio:{min:1,max:1},subtitle:{min:0,max:0},total:{min:1,max:1}}}get fileExtension(){return".wav"}get mimeType(){return"audio/wav"}getSupportedCodecs(){return[...ae.filter(t=>["pcm-s16","pcm-s24","pcm-s32","pcm-f32","pcm-f64","pcm-u8","ulaw","alaw"].includes(t))]}get supportsVideoTransformationMetadata(){return!1}get supportsTimestampedMediaData(){return!1}get negativeTimestampSupport(){return null}},cl=class extends Ke{constructor(t={}){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.maximumPageDuration!==void 0&&(!ve(t.maximumPageDuration)||t.maximumPageDuration<=0))throw new TypeError("options.maximumPageDuration, when provided, must be a positive number.");if(t.onPage!==void 0&&typeof t.onPage!="function")throw new TypeError("options.onPage, when provided, must be a function.");super(),this._options=t}_createMuxer(t){return new Qo(t,this)}get _name(){return"Ogg"}getSupportedTrackCounts(){return{video:{min:0,max:0},audio:{min:0,max:4294967296},subtitle:{min:0,max:0},total:{min:0,max:4294967296}}}get fileExtension(){return".ogg"}get mimeType(){return"application/ogg"}getSupportedCodecs(){return[...fe.filter(t=>["vorbis","opus"].includes(t))]}get supportsVideoTransformationMetadata(){return!1}get supportsTimestampedMediaData(){return!0}get negativeTimestampSupport(){return"none"}},ul=class extends Ke{constructor(t={}){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.onFrame!==void 0&&typeof t.onFrame!="function")throw new TypeError("options.onFrame, when provided, must be a function.");super(),this._options=t}_createMuxer(t){return new Do(t,this)}get _name(){return"ADTS"}getSupportedTrackCounts(){return{video:{min:0,max:0},audio:{min:1,max:1},subtitle:{min:0,max:0},total:{min:1,max:1}}}get fileExtension(){return".aac"}get mimeType(){return"audio/aac"}getSupportedCodecs(){return["aac"]}get supportsVideoTransformationMetadata(){return!1}get supportsTimestampedMediaData(){return!1}get negativeTimestampSupport(){return null}},ll=class extends Ke{constructor(t={}){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.appendOnly!==void 0&&typeof t.appendOnly!="boolean")throw new TypeError("options.appendOnly, when provided, must be a boolean.");super(),this._options=t}_createMuxer(t){return new Vo(t,this)}get _name(){return"FLAC"}getSupportedTrackCounts(){return{video:{min:0,max:0},audio:{min:1,max:1},subtitle:{min:0,max:0},total:{min:1,max:1}}}get fileExtension(){return".flac"}get mimeType(){return"audio/flac"}getSupportedCodecs(){return["flac"]}get supportsVideoTransformationMetadata(){return!1}get supportsTimestampedMediaData(){return!1}get negativeTimestampSupport(){return null}},dl=class extends Ke{constructor(t={}){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.onPacket!==void 0&&typeof t.onPacket!="function")throw new TypeError("options.onPacket, when provided, must be a function.");super(),this._options=t}_createMuxer(t){return new Go(t,this)}get _name(){return"MPEG-TS"}getSupportedTrackCounts(){return{video:{min:0,max:16},audio:{min:0,max:32},subtitle:{min:0,max:0},total:{min:0,max:48}}}get fileExtension(){return".ts"}get mimeType(){return"video/MP2T"}getSupportedCodecs(){return[...le.filter(t=>["avc","hevc"].includes(t)),...fe.filter(t=>["aac","mp3","ac3","eac3","dts"].includes(t))]}get supportsVideoTransformationMetadata(){return!1}get supportsTimestampedMediaData(){return!0}get negativeTimestampSupport(){return"prefer-non-negative"}},ml=class extends Ke{constructor(t){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(!(t.segmentFormat instanceof Ke)&&(!Array.isArray(t.segmentFormat)||t.segmentFormat.length===0||!t.segmentFormat.every(e=>e instanceof Ke)))throw new TypeError("options.segmentFormat must be an OutputFormat or a non-empty array of OutputFormat instances.");if(t.targetDuration!==void 0&&(typeof t.targetDuration!="number"||t.targetDuration<=0))throw new TypeError("options.targetDuration, when provided, must be a positive number.");if(t.singleFilePerPlaylist!==void 0&&typeof t.singleFilePerPlaylist!="boolean")throw new TypeError("options.singleFilePerPlaylist, when provided, must be a boolean.");if(t.live!==void 0&&typeof t.live!="boolean")throw new TypeError("options.live, when provided, must be a boolean.");if(t.maxLiveSegmentCount!==void 0&&(typeof t.maxLiveSegmentCount!="number"||t.maxLiveSegmentCount<1||Number.isFinite(t.maxLiveSegmentCount)&&!Number.isInteger(t.maxLiveSegmentCount)))throw new TypeError("options.maxLiveSegmentCount, when provided, must be a positive integer or Infinity.");if(t.getPlaylistPath!==void 0&&typeof t.getPlaylistPath!="function")throw new TypeError("options.getPlaylistPath, when provided, must be a function.");if(t.getSegmentPath!==void 0&&typeof t.getSegmentPath!="function")throw new TypeError("options.getSegmentPath, when provided, must be a function.");if(t.getInitPath!==void 0&&typeof t.getInitPath!="function")throw new TypeError("options.getInitPath, when provided, must be a function.");if(t.onMaster!==void 0&&typeof t.onMaster!="function")throw new TypeError("options.onMaster, when provided, must be a function.");if(t.onPlaylist!==void 0&&typeof t.onPlaylist!="function")throw new TypeError("options.onPlaylist, when provided, must be a function.");if(t.onSegment!==void 0&&typeof t.onSegment!="function")throw new TypeError("options.onSegment, when provided, must be a function.");if(t.onInit!==void 0&&typeof t.onInit!="function")throw new TypeError("options.onInit, when provided, must be a function.");if(t.onSegmentPopped!==void 0&&typeof t.onSegmentPopped!="function")throw new TypeError("options.onSegmentPopped, when provided, must be a function.");super(),this._options=t}_createMuxer(t){return new Zo(t,this)}get _name(){return"HTTP Live Streaming (HLS)"}get fileExtension(){return".m3u8"}get mimeType(){return nr}getSupportedCodecs(){return[...new Set(jt(this._options.segmentFormat).flatMap(e=>e.getSupportedCodecs()))]}getSupportedTrackCounts(){let t=!1,e=!1,r=!1;for(let n of jt(this._options.segmentFormat)){let a=n.getSupportedTrackCounts();t||=a.video.max>0,e||=a.audio.max>0,r||=a.subtitle.max>0}return{video:{min:0,max:t?1/0:0},audio:{min:0,max:e?1/0:0},subtitle:{min:0,max:0},total:{min:0,max:1/0}}}get supportsVideoTransformationMetadata(){return jt(this._options.segmentFormat).some(t=>t.supportsVideoTransformationMetadata)}get supportsTimestampedMediaData(){return!0}get negativeTimestampSupport(){let t=jt(this._options.segmentFormat);return t.some(e=>e.negativeTimestampSupport==="none")?"none":t.some(e=>e.negativeTimestampSupport==="prefer-non-negative")?"prefer-non-negative":t.some(e=>e.negativeTimestampSupport==="full")?"full":null}_codecUnsupportedHint(t){return" Using different segment formats may grant support for this codec."}};var pl=["video","audio","subtitle"],Vn=class i{constructor(t,e,r,n,a){this.id=t,this.output=e,this.type=r,this.source=n,this.metadata=a}isVideoTrack(){return this.type==="video"}isAudioTrack(){return this.type==="audio"}isSubtitleTrack(){return this.type==="subtitle"}canBePairedWith(t){if(!(t instanceof i))throw new TypeError("other must be an OutputTrack.");if(this===t)return!1;let e=jt(this.metadata.group),r=jt(t.metadata.group);for(let n of e)if(this.type!==t.type&&r.some(o=>n===o)||r.some(o=>n._pairedGroups.has(o)))return!0;return!1}},Jo=class extends Vn{constructor(t,e,r,n){super(t,e,"video",r,n)}},ec=class extends Vn{constructor(t,e,r,n){super(t,e,"audio",r,n)}},tc=class extends Vn{constructor(t,e,r,n){super(t,e,"subtitle",r,n)}},ht=class i{constructor(){this._pairedGroups=new Set}pairWith(t){if(!(t instanceof i))throw new TypeError("other must be an OutputTrackGroup.");if(this===t)throw new TypeError("Cannot pair a group with itself.");this._pairedGroups.add(t),t._pairedGroups.add(this)}},fl=i=>{if(!i||typeof i!="object")throw new TypeError("metadata must be an object.");if(i.languageCode!==void 0&&!gr(i.languageCode))throw new TypeError("metadata.languageCode, when provided, must be a three-letter, ISO 639-2/T language code.");if(i.name!==void 0&&typeof i.name!="string")throw new TypeError("metadata.name, when provided, must be a string.");if(i.disposition!==void 0&&jl(i.disposition),i.maximumPacketCount!==void 0&&(!Number.isInteger(i.maximumPacketCount)||i.maximumPacketCount<0))throw new TypeError("metadata.maximumPacketCount, when provided, must be a non-negative integer.");if(i.bitrate!==void 0&&(!Number.isFinite(i.bitrate)||i.bitrate<0))throw new TypeError("metadata.bitrate, when provided, must be a non-negative number.");if(i.averageBitrate!==void 0&&(!Number.isFinite(i.averageBitrate)||i.averageBitrate<0))throw new TypeError("metadata.averageBitrate, when provided, must be a non-negative number.");if(i.group!==void 0&&!(i.group instanceof ht)&&(!Array.isArray(i.group)||i.group.some(t=>!(t instanceof ht))))throw new TypeError("metadata.group, when provided, must be an OutputTrackGroup instance or an array of OutputTrackGroup instances.")},Br=class extends ct{constructor(e){super();this.state="pending";this.defaultTrackGroup=new ht;this.tracks=[];this._onFinalize=null;this._unfinalizedTargets=new Set;this._rootWriterPromise=null;this._startPromise=null;this._cancelPromise=null;this._finalizePromise=null;this._mutex=new Le;this._metadataTags={};this._rootTarget=null;this._rootTargetPromise=null;this._firstMediaStreamTimestamp=null;if(!e||typeof e!="object")throw new TypeError("options must be an object.");if(!(e.format instanceof Ke))throw new TypeError("options.format must be an OutputFormat.");if(!(e.target instanceof ze||e.target instanceof pt))throw new TypeError("options.target must be a Target or a PathedTarget.");if(e.target instanceof ze&&this._rememberTarget(e.target),e.initTarget!==void 0&&!(e.initTarget instanceof ze)&&typeof e.initTarget!="function")throw new Error("options.initTarget, when provided, must be a Target or a function that returns or resolves to a Target.");if(e.onFinalize!==void 0&&typeof e.onFinalize!="function")throw new TypeError("options.onFinalize, when provided, must be a function.");this.format=e.format,this._target=e.target,this._onFinalize=e.onFinalize??null,this._initTarget=e.initTarget??null,this._initTarget instanceof ze&&this._rememberTarget(this._initTarget),this._muxer=e.format._createMuxer(this)}get target(){let e="Output.target cannot be used when using PathedTarget with an async callback. Use the 'target' event instead.";if(this._rootTargetPromise)throw new TypeError(e);let r=this._getRootTarget();if(_(r))throw new TypeError(e);return r}_getTargetValidated(e){g(this._target instanceof pt);let r=this._target.getTarget(e),n=a=>{if(!(a instanceof ze))throw new TypeError("getTarget must return a Target.");return a};return _(r)?r.then(n):n(r)}async _getTarget(e){g(this._target instanceof pt);let r=await this._getTargetValidated(e);return this._emit("target",{target:r,request:e,isRoot:e.isRoot}),this.state==="canceled"?await r._close():this._rememberTarget(r),r}_rememberTarget(e){this._unfinalizedTargets.add(e),e.on("finalized",()=>this._unfinalizedTargets.delete(e),{once:!0})}async _getInitTarget(){if(g(this._initTarget!==null),this._initTarget instanceof ze)return this._initTarget;let e=await this._initTarget();return this.state==="canceled"?await e._close():this._rememberTarget(e),e}_hasInitTarget(){return this._initTarget!==null}_getRootTarget(){if(this._rootTarget)return this._rootTarget;if(this._rootTargetPromise)return this._rootTargetPromise;if(this._target instanceof ze)return this._emit("target",{target:this._target,request:null,isRoot:!0}),this._rootTarget=this._target,this._target;let e={path:this._target.rootPath,isRoot:!0,mimeType:this.format.mimeType},r=this._getTargetValidated(e),n=a=>(this.state==="canceled"?a._close():this._rememberTarget(a),this._emit("target",{target:a,request:e,isRoot:!0}),this._rootTarget=a,a);return _(r)?this._rootTargetPromise=r.then(n):n(r)}_getRootWriter(e){return this._rootWriterPromise??=(async()=>{let r=await this._getRootTarget(),n=new lr(r,typeof e=="boolean"?e:e(r));return n.start(),n})()}addVideoTrack(e,r={}){if(!(e instanceof Fr))throw new TypeError("source must be a VideoSource.");if(fl(r),r.rotation!==void 0&&![0,90,180,270].includes(r.rotation))throw new TypeError(`Invalid video rotation: ${r.rotation}. Has to be 0, 90, 180 or 270.`);if(r.flip!==void 0&&typeof r.flip!="boolean")throw new TypeError("metadata.flip, when provided, must be a boolean.");if(r.transformationMatrix!==void 0&&(!Array.isArray(r.transformationMatrix)||r.transformationMatrix.length!==9||!r.transformationMatrix.every(a=>Number.isFinite(a))))throw new TypeError("metadata.transformationMatrix, when provided, must be an array of 9 finite numbers.");if(r.frameRate!==void 0&&(!Number.isFinite(r.frameRate)||r.frameRate<=0))throw new TypeError(`Invalid video frame rate: ${r.frameRate}. Must be a positive number.`);if(r.hasOnlyKeyPackets!==void 0&&typeof r.hasOnlyKeyPackets!="boolean")throw new TypeError("metadata.hasOnlyKeyPackets, when provided, must be a boolean.");if(r.canBeTransparent!==void 0&&typeof r.canBeTransparent!="boolean")throw new TypeError("metadata.canBeTransparent, when provided, must be a boolean.");if(r.decoderConfig!==void 0&&tr({decoderConfig:r.decoderConfig},e._codec),r.primingPacket!==void 0){if(!(r.primingPacket instanceof X))throw new TypeError("metadata.primingPacket, when provided, must be an EncodedPacket.");if(r.decoderConfig===void 0)throw new TypeError("metadata.primingPacket can only be provided alongside metadata.decoderConfig.")}let n={...r};return n.group??=this.defaultTrackGroup,this._addTrack(new Jo(this.tracks.length+1,this,e,n))}addAudioTrack(e,r={}){if(!(e instanceof Mr))throw new TypeError("source must be an AudioSource.");if(fl(r),r.decoderConfig!==void 0&&Se({decoderConfig:r.decoderConfig},e._codec),r.primingPacket!==void 0){if(!(r.primingPacket instanceof X))throw new TypeError("metadata.primingPacket, when provided, must be an EncodedPacket.");if(r.decoderConfig===void 0)throw new TypeError("metadata.primingPacket can only be provided alongside metadata.decoderConfig.")}let n={...r};return n.group??=this.defaultTrackGroup,this._addTrack(new ec(this.tracks.length+1,this,e,n))}addSubtitleTrack(e,r={}){if(!(e instanceof Bn))throw new TypeError("source must be a SubtitleSource.");fl(r);let n={...r};return n.group??=this.defaultTrackGroup,this._addTrack(new tc(this.tracks.length+1,this,e,n))}setMetadataTags(e){if(Ln(e),this.state!=="pending")throw new Error("Cannot set metadata tags after output has been started or canceled.");this._metadataTags=e}_addTrack(e){if(this.state!=="pending")throw new Error("Cannot add track after output has been started or canceled.");if(e.source._connectedTrack)throw new Error("Source is already used for a track.");let r=this.format.getSupportedTrackCounts(),n=this.tracks.reduce((o,c)=>o+(c.type===e.type?1:0),0),a=r[e.type].max;if(n===a)throw new Error(a===0?`${this.format._name} does not support ${e.type} tracks.`:`${this.format._name} does not support more than ${a} ${e.type} track${a===1?"":"s"}.`);let s=r.total.max;if(this.tracks.length===s)throw new Error(`${this.format._name} does not support more than ${s} tracks${s===1?"":"s"} in total.`);if(e.isVideoTrack()){let o=this.format.getSupportedVideoCodecs();if(o.length===0)throw new Error(`${this.format._name} does not support video tracks.`+this.format._codecUnsupportedHint(e.source._codec));if(!o.includes(e.source._codec))throw new Error(`Codec '${e.source._codec}' cannot be contained within ${this.format._name}. Supported video codecs are: ${o.map(c=>`'${c}'`).join(", ")}.`+this.format._codecUnsupportedHint(e.source._codec))}else if(e.isAudioTrack()){let o=this.format.getSupportedAudioCodecs();if(o.length===0)throw new Error(`${this.format._name} does not support audio tracks.`+this.format._codecUnsupportedHint(e.source._codec));if(!o.includes(e.source._codec))throw new Error(`Codec '${e.source._codec}' cannot be contained within ${this.format._name}. Supported audio codecs are: ${o.map(c=>`'${c}'`).join(", ")}.`+this.format._codecUnsupportedHint(e.source._codec))}else if(e.isSubtitleTrack()){let o=this.format.getSupportedSubtitleCodecs();if(o.length===0)throw new Error(`${this.format._name} does not support subtitle tracks.`+this.format._codecUnsupportedHint(e.source._codec));if(!o.includes(e.source._codec))throw new Error(`Codec '${e.source._codec}' cannot be contained within ${this.format._name}. Supported subtitle codecs are: ${o.map(c=>`'${c}'`).join(", ")}.`+this.format._codecUnsupportedHint(e.source._codec))}return this.tracks.push(e),e.source._connectedTrack=e,e}hasEnoughTracks(){let e=this.format.getSupportedTrackCounts();for(let n of pl){let a=this.tracks.reduce((o,c)=>o+(c.type===n?1:0),0),s=e[n].min;if(ao+(c.type===n?1:0),0),s=e[n].min;if(a{this.state="started";let n=this._mutex.acquire();try{await this._muxer.start();let a=this.tracks.map(s=>s.source._start());await Promise.all(a)}finally{(await n)()}})()}getMimeType(){return this._muxer.getMimeType()}async cancel(){if(this.state==="canceled")return this._cancelPromise??void 0;if(this.state==="finalizing"||this.state==="finalized"){this.state==="finalized"&&z._warn("Output has already been finalized.");return}return this._cancelPromise=(async()=>{this.state="canceled";let e=await this._mutex.acquire();try{let r=this.tracks.map(n=>n.source._flushOrWaitForOngoingClose(!0));await Promise.all(r),await Promise.all([...this._unfinalizedTargets].map(n=>n._close())),this._unfinalizedTargets.clear()}finally{e()}})()}async finalize(){if(this.state==="pending")throw new Error("Cannot finalize before starting.");if(this.state==="canceled")throw new Error("Cannot finalize after canceling.");return this._finalizePromise?(z._warn("Output has already been finalized."),this._finalizePromise):this._finalizePromise=(async()=>{this.state="finalizing";let e=await this._mutex.acquire();try{let r=this.tracks.map(n=>n.source._flushOrWaitForOngoingClose(!1));if(await Promise.all(r),await this._muxer.finalize(),this._rootWriterPromise){let n=await this._rootWriterPromise;n.finalized||(await n.flush(),await n.finalize())}this._onFinalize&&await this._onFinalize(),this.state="finalized"}catch(r){throw this.state="canceled",r}finally{await Promise.all([...this._unfinalizedTargets].map(r=>r._close().catch(()=>{}))),this._unfinalizedTargets.clear(),e()}})()}};var rc=i=>{if(!i||typeof i!="object")throw new TypeError("options.video, when provided, must be an object.");if(i?.discard!==void 0&&typeof i.discard!="boolean")throw new TypeError("options.video.discard, when provided, must be a boolean.");if(i?.forceTranscode!==void 0&&typeof i.forceTranscode!="boolean")throw new TypeError("options.video.forceTranscode, when provided, must be a boolean.");if(i?.codec!==void 0&&!le.includes(i.codec))throw new TypeError(`options.video.codec, when provided, must be one of: ${le.join(", ")}.`);let t=i?.bitrate;if(i?.quality!==void 0&&!(i.quality instanceof ce))throw new TypeError("options.video.quality, when provided, must be a Quality.");if(i?.quality!==void 0&&t!==void 0)throw new TypeError("options.video.quality and options.video.bitrate cannot both be provided.");if(t!==void 0&&!(t instanceof ce)&&(!Number.isInteger(t)||t<=0))throw new TypeError("options.video.bitrate, when provided, must be a positive integer or a quality.");if(i?.width!==void 0&&(!Number.isInteger(i.width)||i.width<=0))throw new TypeError("options.video.width, when provided, must be a positive integer.");if(i?.height!==void 0&&(!Number.isInteger(i.height)||i.height<=0))throw new TypeError("options.video.height, when provided, must be a positive integer.");if(i?.fit!==void 0&&!["fill","contain","cover"].includes(i.fit))throw new TypeError("options.video.fit, when provided, must be one of 'fill', 'contain', or 'cover'.");if(i?.width!==void 0&&i.height!==void 0&&i.fit===void 0)throw new TypeError("When both options.video.width and options.video.height are provided, options.video.fit must also be provided.");if(i?.rotate!==void 0&&![0,90,180,270].includes(i.rotate))throw new TypeError("options.video.rotate, when provided, must be 0, 90, 180 or 270.");if(i?.flip!==void 0&&typeof i.flip!="boolean")throw new TypeError("options.video.flip, when provided, must be a boolean.");if(i?.allowTransformationMetadata!==void 0&&typeof i.allowTransformationMetadata!="boolean")throw new TypeError("options.video.allowTransformationMetadata, when provided, must be a boolean.");if(i?.allowRotationMetadata!==void 0&&typeof i.allowRotationMetadata!="boolean")throw new TypeError("options.video.allowRotationMetadata, when provided, must be a boolean.");if(i?.crop!==void 0&&ni(i.crop,"options.video."),i?.frameRate!==void 0&&(!Number.isFinite(i.frameRate)||i.frameRate<=0))throw new TypeError("options.video.frameRate, when provided, must be a finite positive number.");if(i?.alpha!==void 0&&!["discard","keep"].includes(i.alpha))throw new TypeError("options.video.alpha, when provided, must be either 'discard' or 'keep'.");if(i?.keyFrameInterval!==void 0&&(!Number.isFinite(i.keyFrameInterval)||i.keyFrameInterval<0))throw new TypeError("options.video.keyFrameInterval, when provided, must be a non-negative number.");if(i?.process!==void 0&&typeof i.process!="function")throw new TypeError("options.video.process, when provided, must be a function.");if(i?.processedWidth!==void 0&&(!Number.isInteger(i.processedWidth)||i.processedWidth<=0))throw new TypeError("options.video.processedWidth, when provided, must be a positive integer.");if(i?.processedHeight!==void 0&&(!Number.isInteger(i.processedHeight)||i.processedHeight<=0))throw new TypeError("options.video.processedHeight, when provided, must be a positive integer.");if(i?.hardwareAcceleration!==void 0&&!["no-preference","prefer-hardware","prefer-software"].includes(i.hardwareAcceleration))throw new TypeError("options.video.hardwareAcceleration, when provided, must be 'no-preference', 'prefer-hardware' or 'prefer-software'.");if(i?.group!==void 0&&!(i.group instanceof ht||Array.isArray(i.group)&&i.group.every(e=>e instanceof ht)))throw new TypeError("options.video.group, when provided, must be an OutputTrackGroup or an array of OutputTrackGroups.")},ic=i=>{if(!i||typeof i!="object")throw new TypeError("options.audio, when provided, must be an object.");if(i?.discard!==void 0&&typeof i.discard!="boolean")throw new TypeError("options.audio.discard, when provided, must be a boolean.");if(i?.forceTranscode!==void 0&&typeof i.forceTranscode!="boolean")throw new TypeError("options.audio.forceTranscode, when provided, must be a boolean.");if(i?.codec!==void 0&&!fe.includes(i.codec))throw new TypeError(`options.audio.codec, when provided, must be one of: ${fe.join(", ")}.`);let t=i?.bitrate;if(i?.quality!==void 0&&!(i.quality instanceof ce))throw new TypeError("options.audio.quality, when provided, must be a Quality.");if(i?.quality!==void 0&&t!==void 0)throw new TypeError("options.audio.quality and options.audio.bitrate cannot both be provided.");if(t!==void 0&&!(t instanceof ce)&&(!Number.isInteger(t)||t<=0))throw new TypeError("options.audio.bitrate, when provided, must be a positive integer or a quality.");if(i?.numberOfChannels!==void 0&&(!Number.isInteger(i.numberOfChannels)||i.numberOfChannels<=0))throw new TypeError("options.audio.numberOfChannels, when provided, must be a positive integer.");if(i?.sampleRate!==void 0&&(!Number.isInteger(i.sampleRate)||i.sampleRate<=0))throw new TypeError("options.audio.sampleRate, when provided, must be a positive integer.");if(i?.sampleFormat!==void 0&&!["u8","s16","s32","f32"].includes(i.sampleFormat))throw new TypeError("options.audio.sampleFormat, when provided, must be one of: u8, s16, s32, f32.");if(i?.process!==void 0&&typeof i.process!="function")throw new TypeError("options.audio.process, when provided, must be a function.");if(i?.processedNumberOfChannels!==void 0&&(!Number.isInteger(i.processedNumberOfChannels)||i.processedNumberOfChannels<=0))throw new TypeError("options.audio.processedNumberOfChannels, when provided, must be a positive integer.");if(i?.processedSampleRate!==void 0&&(!Number.isInteger(i.processedSampleRate)||i.processedSampleRate<=0))throw new TypeError("options.audio.processedSampleRate, when provided, must be a positive integer.");if(i?.group!==void 0&&!(i.group instanceof ht||Array.isArray(i.group)&&i.group.every(e=>e instanceof ht)))throw new TypeError("options.audio.group, when provided, must be an OutputTrackGroup or an array of OutputTrackGroups.")},hl=2,gl=48e3,bl=class i{constructor(t){this._state="idle";this._timestampOffset=0;this._timestampOffsetAdjusted=!1;this._copyTimestampPossible=new Map;this._copyStartPackets=new Map;this._nextOutputTrackId=0;this._outputTrackIds=[];this._outputOwnTrackGroups=[];this._trackPumps=[];this._composable=!1;this._executed=!1;this._executionUntil=1/0;this._pauseRequested=!1;this._synchronizer=new yl(this);this._totalDuration=null;this._maxTimestamps=new Map;this.onProgress=void 0;this._computeProgress=!1;this._lastProgress=0;this.isValid=!1;this.utilizedTracks=[];this.discardedTracks=[];if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(!(t.input instanceof Ri))throw new TypeError("options.input must be an Input.");if(!(t.output instanceof Br))throw new TypeError("options.output must be an Output.");if(t.tracks!==void 0&&t.tracks!=="all"&&t.tracks!=="primary")throw new TypeError("options.tracks, when provided, must be either 'all' or 'primary'.");if(t.composable!==void 0&&typeof t.composable!="boolean")throw new TypeError("options.composable, when provided, must be a boolean.");if(t.copy!==void 0&&t.copy!==!1){if(!t.copy||typeof t.copy!="object")throw new TypeError("options.copy, when provided, must be an object or false.");if(t.copy.mode!==void 0&&!["forced","preferred"].includes(t.copy.mode))throw new TypeError("options.copy.mode, when provided, must be 'forced' or 'preferred'.");if(t.copy.shiftTolerance!==void 0&&(!ve(t.copy.shiftTolerance)||t.copy.shiftTolerance<0))throw new TypeError("options.copy.shiftTolerance, when provided, must be a non-negative number.");if(t.copy.boundaryPolicy!==void 0&&!["expand","shrink"].includes(t.copy.boundaryPolicy))throw new TypeError("options.copy.boundaryPolicy, when provided, must be 'expand' or 'shrink'.");if(t.copy.boundaryTolerance!==void 0&&(!ve(t.copy.boundaryTolerance)||t.copy.boundaryTolerance<0))throw new TypeError("options.copy.boundaryTolerance, when provided, must be a non-negative number.")}let e=t.composable??!1;if(e){if(t.tags!==void 0)throw new TypeError("options.tags cannot be set by a composable conversion; set metadata directly on the output instead.");if(t.output.state!=="pending")throw new TypeError("options.output must not have been started yet.")}else if(t.output.tracks.length>0||Object.keys(t.output._metadataTags).length>0||t.output.state!=="pending")throw new TypeError("options.output must be fresh: no tracks or metadata tags added and not started.");if(t.video!==void 0&&typeof t.video!="function")if(Array.isArray(t.video))for(let r of t.video)rc(r);else rc(t.video);if(t.audio!==void 0&&typeof t.audio!="function")if(Array.isArray(t.audio))for(let r of t.audio)ic(r);else ic(t.audio);if(t.trim!==void 0&&(!t.trim||typeof t.trim!="object"))throw new TypeError("options.trim, when provided, must be an object.");if(t.trim?.start!==void 0&&!Number.isFinite(t.trim.start))throw new TypeError("options.trim.start, when provided, must be a finite number.");if(t.trim?.end!==void 0&&!ve(t.trim.end))throw new TypeError("options.trim.end, when provided, must be a number.");if(t.trim?.start!==void 0&&t.trim.end!==void 0&&t.trim.start>=t.trim.end)throw new TypeError("options.trim.start must be less than options.trim.end.");if(t.tags!==void 0&&(typeof t.tags!="object"||!t.tags)&&typeof t.tags!="function")throw new TypeError("options.tags, when provided, must be an object or a function.");if(typeof t.tags=="object"&&Ln(t.tags),t.showWarnings!==void 0&&typeof t.showWarnings!="boolean")throw new TypeError("options.showWarnings, when provided, must be a boolean.");this._options=t,this._copyMode=t.copy===!1?!1:t.copy?.mode??"preferred",this._copyTimestampShiftTolerance=t.copy===!1?0:t.copy?.shiftTolerance??0,this._copyBoundaryPolicy=t.copy===!1?"expand":t.copy?.boundaryPolicy??"expand",this._copyBoundaryTolerance=t.copy===!1?1/0:t.copy?.boundaryTolerance??1/0,this._composable=e,this.input=t.input,this.output=t.output}get state(){return this._state}static async init(t){let e=new i(t);return await e._init(),e}async _init(){let t=await this.input.getFormat(),e,r=this._options.tracks;if(r===void 0&&(r=t.name.includes("(HLS)")?"primary":"all"),r==="all")e=await this.input.getTracks();else if(r==="primary"){let u=await this.input.getPrimaryVideoTrack(),l=await this.input.getPrimaryAudioTrack();e=[u,l].filter(d=>d!==null)}else ne(r),g(!1);let n=this.output.format.getSupportedTrackCounts(),a=1,s=1,o=[],c=[];for(let u of e){let l;if(u.isVideoTrack())if(this._options.video)if(typeof this._options.video=="function"){let f=await this._options.video(u,a)??{};if(Array.isArray(f))for(let p of f)rc(p);else rc(f);l=Array.isArray(f)?f:[f],a++}else l=Array.isArray(this._options.video)?this._options.video:[this._options.video];else l=[{}];else if(u.isAudioTrack())if(this._options.audio)if(typeof this._options.audio=="function"){let f=await this._options.audio(u,s)??{};if(Array.isArray(f))for(let p of f)ic(p);else ic(f);l=Array.isArray(f)?f:[f],s++}else l=Array.isArray(this._options.audio)?this._options.audio:[this._options.audio];else l=[{}];else g(!1);let d=l.filter(f=>f.discard);for(let f of d)this.discardedTracks.push({track:u,reason:"discarded_by_user",trackOptions:f});if(l.length===d.length){l.length===0&&this.discardedTracks.push({track:u,reason:"discarded_by_user",trackOptions:{}});continue}let m=l.filter(f=>!f.discard);o.push(u),c.push(m)}this._options.trim?.start!==void 0?this._startTimestamp=this._options.trim.start:this._startTimestamp=Math.max(await this.input.getFirstTimestamp(o),0),this._endTimestamp=Math.max(this._options.trim?.end??1/0,this._startTimestamp),this._timestampOffset=-this._startTimestamp;for(let u=0;ub+(h.type===l.type?1:0),0)===n[l.type].max){this.discardedTracks.push({track:l,reason:"max_track_count_of_type_reached",trackOptions:m});continue}let p=this._nextOutputTrackId++;l.isVideoTrack()?await this._processVideoTrack(l,m,p):l.isAudioTrack()?await this._processAudioTrack(l,m,p):g(!1)}}for(let u=0;u0,this._options.showWarnings??!0){let u=[],l=this.discardedTracks.filter(d=>d.reason!=="discarded_by_user");l.length>0&&u.push("Some tracks had to be discarded from the conversion:",l),this.isValid||(u.length>0&&u.push(` + +`),u.push(this._getInvalidityExplanation().join(""))),u.length>0&&z._warn(...u)}}_getInvalidityExplanation(){let t=[];if(this.discardedTracks.length===0)t.push("Due to missing tracks, this conversion cannot be executed.");else{let e=this.discardedTracks.every(r=>r.reason==="discarded_by_user"||r.reason==="no_encodable_target_codec")&&this.discardedTracks.some(r=>r.reason==="no_encodable_target_codec");if(t.push("Due to discarded tracks, this conversion cannot be executed."),e){let r=this.discardedTracks.flatMap(a=>{if(a.reason==="discarded_by_user")return[];let s;return a.track.type==="video"?s=this.output.format.getSupportedVideoCodecs():a.track.type==="audio"?s=this.output.format.getSupportedAudioCodecs():s=this.output.format.getSupportedSubtitleCodecs(),s.filter(o=>!a.trackOptions.codec||o===a.trackOptions.codec)}),n=[...new Set(r)];n.length===1?t.push(` +Tracks were discarded because your environment is not able to encode '${n[0]}' with the provided parameters.`):t.push(` +Tracks were discarded because your environment is not able to encode any of the codecs ${n.map(a=>`'${a}'`).join(", ")} with the provided parameters.`),n.includes("mp3")&&t.push(` +The @mediabunny/mp3-encoder extension package provides support for encoding MP3.`),n.includes("aac")&&t.push(` +The @mediabunny/aac-encoder extension package provides support for encoding AAC.`),(n.includes("ac3")||n.includes("eac3"))&&t.push(` +The @mediabunny/ac3 extension package provides support for encoding and decoding AC-3/E-AC-3.`),n.includes("flac")&&t.push(` +The @mediabunny/flac-encoder extension package provides support for encoding FLAC.`)}else t.push(` +Check the discardedTracks field for more info.`)}return t}async execute(t={}){if(!t||typeof t!="object")throw new TypeError("options must be an object.");if(t.until!==void 0&&(typeof t.until!="number"||Number.isNaN(t.until)))throw new TypeError("options.until, when provided, must be a number.");if(t.pauseSignal!==void 0&&!(t.pauseSignal instanceof AbortSignal))throw new TypeError("options.pauseSignal, when provided, must be an AbortSignal.");if(!this.isValid)throw new Error(`Cannot execute this conversion because its output configuration is invalid. Make sure to always check the isValid field before executing a conversion. +`+this._getInvalidityExplanation().join(""));if(this._state==="executing")throw new Error("Cannot call execute() while a previous call to execute() is still running.");if(this._state==="canceled")throw new Fa;if(this._state==="done")return;if(this._composable&&this.output.state==="pending")throw new Error("A composable conversion requires the output to be started. Call start() on the output before executing the conversion.");this._state="executing",this._executionUntil=t.until??1/0,this._pauseRequested=t.pauseSignal?.aborted??!1;let e=()=>{this._state==="executing"&&(this._pauseRequested=!0,this._synchronizer.resolveAll())};t.pauseSignal?.addEventListener("abort",e);for(let n of this._trackPumps)n.done||(n.resolvers=J());if(this._executed)for(let n of this._trackPumps)n.wake?.();else{this._executed=!0;for(let n of this._outputTrackIds)this._synchronizer.declareTrack(n);if(this.onProgress){let a=[...new Set(this.utilizedTracks)].map(async o=>await o.isLive()?1/0:await o.getDurationFromMetadata()??await o.computeDuration()),s=Math.max(0,...await Promise.all(a));this._computeProgress=!0,this._totalDuration=Math.min(s-this._startTimestamp,this._endTimestamp-this._startTimestamp);for(let o of this._outputTrackIds)this._maxTimestamps.set(o,0);this.onProgress?.(0,0)}this._composable||await this.output.start();for(let n of this._trackPumps)n.start()}try{await Promise.all(this._trackPumps.map(n=>n.resolvers.promise))}catch(n){throw this._state!=="canceled"&&this.cancel(),n}finally{t.pauseSignal?.removeEventListener("abort",e)}if(this._state==="canceled")throw new Fa;let r=this._trackPumps.every(n=>n.done);if(this._state=r?"done":"idle",r&&(this._composable||await this.output.finalize(),this._computeProgress)){let n=Math.min(...this._maxTimestamps.values());this.onProgress?.(1,n)}}async cancel(){if(this._state!=="done"){if(this._state==="canceled"){z._warn("Conversion already canceled.");return}this._state="canceled";for(let t of this._trackPumps)t.wake?.();this._synchronizer.resolveAll(),this._composable||await this.output.cancel()}}async _processVideoTrack(t,e,r){let n=await t.getCodec();if(!n){this.discardedTracks.push({track:t,reason:"unknown_source_codec",trackOptions:e});return}let a,s=await t.getRotation(),o=await t.getFlip(),{rotation:c,flip:u}=Ua(s,o,e.rotate??0,e.flip??!1),l=c,d=u,m=e.rotate||e.flip?null:await t.getTransformationMatrix(),f=this.output.format.supportsVideoTransformationMetadata&&(e.allowTransformationMetadata??e.allowRotationMetadata??!0),p=await t.getSquarePixelWidth(),b=await t.getSquarePixelHeight(),[h,y]=c%180===0?[p,b]:[b,p],k=e.crop;k&&(k=wn(k,h,y));let[T,w]=k?[k.width,k.height]:[h,y],A=T,x=w,C=A/x;e.width!==void 0&&e.height===void 0?(A=Si(e.width),x=Si(Math.round(A/C))):e.width===void 0&&e.height!==void 0?(x=Si(e.height),A=Si(Math.round(x*C))):e.width!==void 0&&e.height!==void 0&&(A=Si(e.width),x=Si(e.height));let P=this.output.format.getSupportedVideoCodecs(),S=e.alpha??"discard",I=!this._copyMode||!!e.forceTranscode||!!e.frameRate||e.keyFrameInterval!==void 0||e.process!==void 0||e.quality!==void 0||e.bitrate!==void 0||!P.includes(n)||e.codec&&e.codec!==n||A!==T||x!==w||c!==0&&!f||u&&!f||!!k,E=null;if(!I){let Qe=new ft(t),Fe=await Qe.getKeyPacket(this._startTimestamp,{verifyKeyPackets:!0})??await Qe.getFirstKeyPacket({verifyKeyPackets:!0});if(Fe&&Fe.timestampthis._copyBoundaryTolerance)I=!0;else if(this.output.format.supportsTimestampedMediaData){if(this.output.format.negativeTimestampSupport!=="full"&&Ne=this._startTimestamp||this.output.format.negativeTimestampSupport==="prefer-non-negative"&&this._copyMode==="forced"?this._timestampOffset=Math.max(this._timestampOffset,-this._startTimestamp+Me):I=!0}}else if(this._timestampOffsetAdjusted)Ne+this._timestampOffset===0||(I=!0);else{let Me=ee(this._startTimestamp-Ne,-this._copyTimestampShiftTolerance,this._copyTimestampShiftTolerance);Ne+Me===this._startTimestamp?(this._timestampOffset=-this._startTimestamp+Me,this._timestampOffsetAdjusted=!0):I=!0}}}if(I&&this._copyMode==="forced"){this.discardedTracks.push({track:t,reason:"cannot_copy",trackOptions:e});return}if(I){if(!await t.canDecode()){this.discardedTracks.push({track:t,reason:"undecodable_source_codec",trackOptions:e});return}e.codec&&(P=P.filter(me=>me===e.codec));let Fe=ai(e.quality,e.bitrate)??new ce("high"),Ne=await Pu(P,{width:e.process&&e.processedWidth?e.processedWidth:A,height:e.process&&e.processedHeight?e.processedHeight:x,quality:Fe});if(!Ne){this.discardedTracks.push({track:t,reason:"no_encodable_target_codec",trackOptions:e});return}let re={codec:Ne,quality:Fe,keyFrameInterval:e.keyFrameInterval,sizeChangeBehavior:e.fit??"passThrough",alpha:S,hardwareAcceleration:e.hardwareAcceleration,transform:{}};g(re.transform);let Me=A!==T||x!==w||c!==0&&(!f||e.process!==void 0)||u&&(!f||e.process!==void 0)||!!k||p!==await t.getCodedWidth()||b!==await t.getCodedHeight();if(!Me){var pe=[];try{let me=new Br({format:new Dn,target:new Ni});let Oe=new Mn(re);me.addVideoTrack(Oe);await me.start();let di=new Bi(t);let Ge=st(pe,await di.getSample(await t.getFirstTimestamp()));if(Ge)try{await Oe.add(Ge),Ge.close(),await me.finalize()}catch(dr){z._warn("An error occurred when probing encoder support. Falling back to rerender path.",dr),me.cancel(),Me=!0,re.transform.force=!0}else await me.cancel()}catch(Ie){var Nt=Ie,gt=!0}finally{ot(pe,Nt,gt)}}e.frameRate&&(re.transform.frameRate=e.frameRate),e.process&&(re.transform.process=e.process),Me&&(l=0,d=!1,m=null,re.transform.width=A,re.transform.height=x,re.transform.fit=e.fit??"fill",re.transform.rotate=e.rotate,re.transform.flip=e.flip,re.transform.crop=k,re.transform.alpha=S);let Be=null;re.onEncodedSample=me=>{Be=me.timestamp};let Ee=new Mn(re);a=Ee,this._registerTrackPump(async me=>{let Oe=new Bi(t);for await(var di of Oe.samples(this._startTimestamp,this._endTimestamp)){var Ge=[];try{let bt=st(Ge,di);if(this._state==="canceled")break;let mi=Math.max(this._startTimestamp,bt.timestamp),kl=Math.min(this._endTimestamp,bt.timestamp+bt.duration);mi>=kl||(bt.setTimestamp(mi+this._timestampOffset),bt.setDuration(kl-mi),this._reportProgress(r,bt.timestamp+bt.duration),await Ee.add(bt),bt.close(),Be!==null&&(this._synchronizer.shouldWait(r,Be)&&await this._synchronizer.wait(Be),await this._checkpoint(me,Be)))}catch(dr){var Hi=dr,nc=!0}finally{ot(Ge,Hi,nc)}}Ee.close(),this._synchronizer.closeTrack(r)})}else{let Qe=new ui(n);a=Qe,this._registerTrackPump(async Fe=>{let Ne=new ft(t),Me={decoderConfig:await t.getDecoderConfig()??void 0},Be=null;if(E)for await(let Ee of Ne.packets(E,void 0,{verifyKeyPackets:!0})){if(this._state==="canceled")break;if(Ee.timestamp>=this._endTimestamp){if(this._copyBoundaryPolicy==="shrink")break;{let dr=Ee,Hi=!1,nc=6;for(let bt=0;btthis._copyBoundaryTolerance)d=!0;else if(this.output.format.supportsTimestampedMediaData){if(this.output.format.negativeTimestampSupport!=="full"&&w.timestamp=this._startTimestamp||this.output.format.negativeTimestampSupport==="prefer-non-negative"&&this._copyMode==="forced"?this._timestampOffset=Math.max(this._timestampOffset,-this._startTimestamp+C):d=!0}}else if(this._timestampOffsetAdjusted)w.timestamp+this._timestampOffset===0||(d=!0);else{let C=ee(this._startTimestamp-w.timestamp,-this._copyTimestampShiftTolerance,this._copyTimestampShiftTolerance);w.timestamp+C===this._startTimestamp?(this._timestampOffset=-this._startTimestamp+C,this._timestampOffsetAdjusted=!0):d=!0}}if(d&&this._copyMode==="forced"){this.discardedTracks.push({track:t,reason:"cannot_copy",trackOptions:e});return}if(d){if(!await t.canDecode()){this.discardedTracks.push({track:t,reason:"undecodable_source_codec",trackOptions:e});return}let w=null;e.codec&&(l=l.filter(I=>I===e.codec));let A=ai(e.quality,e.bitrate)??new ce("high"),x=await wa(l,{numberOfChannels:e.process&&e.processedNumberOfChannels?e.processedNumberOfChannels:c,sampleRate:e.process&&e.processedSampleRate?e.processedSampleRate:u,quality:A});if(!x.some(I=>Rt.includes(I))&&l.some(I=>Rt.includes(I))&&(c!==hl||u!==gl)){let E=(await wa(l,{numberOfChannels:hl,sampleRate:gl,quality:A})).find(v=>Rt.includes(v));E&&(w=E,c=hl,u=gl)}else w=x[0]??null;if(w===null){this.discardedTracks.push({track:t,reason:"no_encodable_target_codec",trackOptions:e});return}let C={codec:w,quality:A,transform:{sampleFormat:e.sampleFormat,process:e.process}};g(C.transform),c!==s&&(C.transform.numberOfChannels=c),u!==o&&(C.transform.sampleRate=u);let P=null;C.onEncodedSample=I=>{P=I.timestamp};let S=new _a(C);a=S,this._registerTrackPump(async I=>{let E=null,v=new xn(t);for await(var Nt of v.samples(this._startTimestamp,this._endTimestamp)){var gt=[];try{let re=st(gt,Nt);var K=[];try{if(this._state==="canceled")break;let Me=0;let Be=re.numberOfFrames;re.timestampthis._endTimestamp&&(Be=Math.round((this._endTimestamp-re.timestamp)*re.sampleRate));if(Me>=Be){re.close();continue}let Ee;if(Me>0||Be0&&!this.output.format.supportsTimestampedMediaData);if(E){var F=[];try{let Oe=me.timestamp;let di=Math.round(Oe*o);let Ge=sr(re.format);let dr=new Uint8Array(Ge*di*s);(re.format==="u8"||re.format==="u8-planar")&&dr.fill(2**7);let Hi=st(F,new Ce({data:dr,format:re.format,numberOfChannels:s,sampleRate:o,timestamp:0}));await this._registerAudioSample(I,Hi,S,r,()=>P);E=!1}catch(O){var D=O,U=!0}finally{ot(F,D,U)}}await this._registerAudioSample(I,me,S,r,()=>P)}catch(ie){var pe=ie,Ie=!0}finally{ot(K,pe,Ie)}}catch(Qe){var Fe=Qe,Ne=!0}finally{ot(gt,Fe,Ne)}}S.close(),this._synchronizer.closeTrack(r)})}else{let T=new li(n);a=T,this._registerTrackPump(async w=>{let A=new ft(t),C={decoderConfig:await t.getDecoderConfig()??void 0},P=null;if(m)for await(let S of A.packets(m)){if(this._state==="canceled"||S.timestamp>=this._endTimestamp||this._copyBoundaryPolicy==="shrink"&&S.timestamp+S.duration>this._endTimestamp)break;let I=S.timestamp+this._timestampOffset;if(P!==null&&I{t(e).then(()=>{e.done=!0,e.resolvers.resolve()},r=>{e.resolvers.reject(r)})}};this._trackPumps.push(e)}async _checkpoint(t,e){for(;this._state!=="canceled"&&(e>=this._executionUntil||this._pauseRequested);){t.resolvers.resolve();let{promise:r,resolve:n}=J();t.wake=n,await r}}_reportProgress(t,e){if(!this._computeProgress)return;g(this._totalDuration!==null),this._maxTimestamps.set(t,Math.max(e,this._maxTimestamps.get(t)));let r=Math.min(...this._maxTimestamps.values()),n=ee(r/this._totalDuration,0,1);n!==this._lastProgress&&(this._lastProgress=n,this.onProgress?.(n,r))}},Fa=class extends Error{constructor(t="Conversion has been canceled."){super(t),this.name="ConversionCanceledError"}},Cf=1,yl=class{constructor(t){this.maxTimestamps=new Map;this.resolvers=[];this.conversion=t}declareTrack(t){this.maxTimestamps.set(t,-1/0)}shouldWait(t,e){let r=this.maxTimestamps.get(t);g(r!==void 0),this.maxTimestamps.set(t,Math.max(e,r));let n=this.computeMinAndMaybeResolve();return this.conversion._state==="canceled"||this.conversion._pauseRequested||e>=this.conversion._executionUntil?!1:e-n>Cf}wait(t){let{promise:e,resolve:r}=J();return this.resolvers.push({timestamp:t,resolve:r}),e}closeTrack(t){this.maxTimestamps.delete(t),this.computeMinAndMaybeResolve()}resolveAll(){for(let t of this.resolvers)t.resolve();this.resolvers.length=0}computeMinAndMaybeResolve(){let t=1/0;for(let[,e]of this.maxTimestamps)t=Math.min(t,e);for(let e=0;e