app.py

import copy
import os
import random

os.system('pip install dashscope')
import gradio as gr
import dashscope
from dashscope import VideoSynthesis
from examples import t2v_examples, i2v_examples
import time

DASHSCOPE_API_KEY = os.getenv('DASHSCOPE_API_KEY')
dashscope.api_key = DASHSCOPE_API_KEY

KEEP_SUCCESS_TASK = 3600 * 10
KEEP_RUNING_TASK = 3600 * 1
# the total running task number in 1800 seconds
LIMIT_RUNING_TASK = 10
LIMIT_HISTORY_RUNING_TASK = 20
FRESH_TIME = None

task_status = {}

total_task_info = {
    "total_process_cost": 0,
    "total_complete_task": 0,
    "total_submit": 0,
    "latest_1h_submit_status": {

    }
}

def get_submit_code():
    submit_code = random.randint(0, 2147483647)
    #
    for sub_c, sub_info in copy.deepcopy(total_task_info["latest_1h_submit_status"]).items():
        if time.time() - sub_info > 3600:
            total_task_info["latest_1h_submit_status"].pop(sub_c)
    return submit_code
def t2v_generation(prompt, resolution, watermark_wan, seed=-1):
    seed = seed if seed >= 0 else random.randint(0, 2147483647)
    total_task_info["latest_1h_submit_status"][get_submit_code()] = time.time()
    total_task_info["total_submit"] += 1
    if not allow_task_num():
        gr.Info(f"Warning: The number of running tasks is too large, the estimate waiting time is {get_waiting_time('-1')} s.")
        return None, gr.Button(visible=True)
    try:
        rsp = VideoSynthesis.call(model="wanx2.1-t2v-plus", prompt=prompt, seed=seed,
                                  watermark_wanx=watermark_wan, size=resolution)
        video_url = rsp.output.video_url
        return video_url, gr.Button(visible=True)
    except Exception as e:
        gr.Warning(f"Warning: {e}")
        return None, gr.Button(visible=True)


def t2v_generation_async(prompt, size, watermark_wan, seed=-1):
    print(seed)
    seed = seed if seed >= 0 else random.randint(0, 2147483647)
    total_task_info["latest_1h_submit_status"][get_submit_code()] = time.time()
    total_task_info["total_submit"] += 1
    print(seed)
    if not allow_task_num():
        gr.Info(f"Warning: The number of running tasks is too large, the estimate waiting time is {get_waiting_time('-1')} s.")
        return None, False, gr.Button(visible=True), gr.Button(visible=False), gr.Slider(), gr.Slider()
    try:
        rsp = VideoSynthesis.async_call(model="wanx2.1-t2v-plus",
                                        prompt=prompt,
                                        size=size,
                                        seed=seed,
                                        watermark_wanx=watermark_wan)
        task_id = rsp.output.task_id
        status = False
        return task_id, status, gr.Button(visible=False), gr.Button(visible=True), get_cost_time(task_id), get_waiting_time(task_id)
    except Exception as e:
        gr.Warning(f"Warning: {e}")
        return None, True, gr.Button(), gr.Button(),  gr.Slider(), gr.Slider()


def i2v_generation(prompt, image, watermark_wan, seed=-1):
    seed = seed if seed >= 0 else random.randint(0, 2147483647)
    video_url = None
    try:
        rsp = VideoSynthesis.call(model="wanx2.1-i2v-plus", prompt=prompt, img_url=image,
                                  seed=seed,
                                  watermark_wanx=watermark_wan
                                  )
        video_url = rsp.output.video_url
    except Exception as e:
        gr.Warning(f"Warning: {e}")
    return video_url


def i2v_generation_async(prompt, image, watermark_wan, seed=-1):
    seed = seed if seed >= 0 else random.randint(0, 2147483647)
    total_task_info["latest_1h_submit_status"][get_submit_code()] = time.time()
    total_task_info["total_submit"] += 1
    if not allow_task_num():
        gr.Info(f"Warning: The number of running tasks is too large, the estimate waiting time is {get_waiting_time('-1')} s.")
        return "", None, gr.Button(visible=True), gr.Button(visible=False), gr.Slider(), gr.Slider()
    try:
        rsp = VideoSynthesis.async_call(model="wanx2.1-i2v-plus", prompt=prompt, seed=seed,
                                        img_url=image, watermark_wanx=watermark_wan)
        print(rsp)
        task_id = rsp.output.task_id
        status = False
        return task_id, status, gr.Button(visible=False), gr.Button(visible=True), get_cost_time(task_id), get_waiting_time(task_id)
    except Exception as e:
        gr.Warning(f"Warning: {e}")
        return "", None, gr.Button(), gr.Button(), gr.Slider(), gr.Slider()

def get_result_with_task_id(task_id):
    if task_id == "": return True, None
    try:
        rsp = VideoSynthesis.fetch(task=task_id)
        print(rsp)
        if rsp.output.task_status == "FAILED":
            gr.Info(f"Warning: task running {rsp.output.task_status}")
            status = True
            video_url = None
        else:
            video_url = rsp.output.video_url
            video_url = video_url if video_url != "" else None
            status = video_url is not None
        if status:
            total_task_info["total_complete_task"] += 1
            total_task_info["total_process_cost"] += time.time() - task_status[task_id]["time"]
            print(total_task_info["total_complete_task"], total_task_info["total_process_cost"])
    except:
        video_url = None
        status = False
    return status, None if video_url == "" else video_url
    # return True, "https://dashscope-result-wlcb.oss-cn-wulanchabu.aliyuncs.com/1d/f8/20250220/e7d3f375/ccc590a2-7e90-4d92-84bc-22668db42979.mp4?Expires=1740137152&OSSAccessKeyId=LTAI5tQZd8AEcZX6KZV4G8qL&Signature=i3S3jA5FY6XYfvzZNHnvQiPzZSw%3D"



def allow_task_num():
    num = 0
    total_num = 0
    for task_id in task_status:
        if not task_status[task_id]["status"] and task_status[task_id]["time"] + 1800 > time.time():
            num += 1
        if not task_status[task_id]["status"]:
            total_num += 1
    return num < LIMIT_RUNING_TASK or total_num < LIMIT_HISTORY_RUNING_TASK

def get_waiting_time(task_id):
    # if the num of running task < Limit
    # waiting time = num * 480s
    # task_id not in task_status, return a large number
    # prediction the waiting time
    # avg_cost * latest submit time
    num = 0
    for task_id in task_status:
        if not task_status[task_id]["status"]:
            num += 1
    latest_submit_tasks = len(total_task_info["latest_1h_submit_status"])
    print("latest submit tasks", latest_submit_tasks)
    if task_id in task_status:
        return int(640 - (time.time() - task_status[task_id]["time"]))
    else:
        return int(latest_submit_tasks * (total_task_info["total_process_cost"]/(total_task_info["total_complete_task"]+1)))

def online_get_waiting_time(task, t2v_task_id, i2v_task_id):
    task_id = t2v_task_id if task == "t2v" else i2v_task_id
    return get_waiting_time(task_id)

def clean_task_status():
    # clean the task over 1800 seconds
    for task_id in copy.deepcopy(task_status):
        if task_id == "": continue
        # finished task, keep 3600 seconds
        if task_status[task_id]["status"]:
            if task_status[task_id]["time"] + KEEP_SUCCESS_TASK < time.time():
                task_status.pop(task_id)
        else:
            # clean the task over 3600 * 2 seconds
            if task_status[task_id]["time"] + KEEP_RUNING_TASK < time.time():
                task_status.pop(task_id)


def get_cost_time(task_id):
    if task_id in task_status and not task_status[task_id]["status"]:
        et = int(time.time() - task_status[task_id]["time"])
        return f"{et:.2f}"
    else:
        return gr.Textbox()

def online_get_cost_time(task, t2v_task_id, i2v_task_id):
    task_id = t2v_task_id if task == "t2v" else i2v_task_id
    return get_cost_time(task_id)


def get_process_bar(task, t2v_task_id, i2v_task_id, status):
    task_id = t2v_task_id if task == "t2v" else i2v_task_id
    clean_task_status()
    if task_id not in task_status:
        task_status[task_id] = {
            "value": 0 if not task_id == "" else 100,
            "status": status if not task_id == "" else True,
            "time": time.time(),
            "url": None
        }
    if not task_status[task_id]["status"]:
        # only when > 50% do check status
        if task_status[task_id]["value"] >= 5 and task_status[task_id]["value"] % 5 == 0:
            status, video_url = get_result_with_task_id(task_id)
        else:
            status, video_url = False, None
        task_status[task_id]["status"] = status
        task_status[task_id]["url"] = video_url
    if task_status[task_id]["status"]:
        task_status[task_id]["value"] = 100
    else:
        task_status[task_id]["value"] += 5
    if task_status[task_id]["value"] >= 100 and not task_status[task_id]["status"]:
        task_status[task_id]["value"] = 95
    # print(task_id, task_status[task_id], task_status)
    value = task_status[task_id]["value"]
    return gr.Slider(label=f"({value}%)Generating" if value % 2 == 1 else f"({value}%)Generating.....", value=value)


with gr.Blocks() as demo:
    gr.HTML("""
               <div style="text-align: center; font-size: 32px; font-weight: bold; margin-bottom: 20px;">
                   Wan2.1: Open and Advanced Large-Scale Video Generative Models
               </div>
               <div style="text-align: center;">
                   <a href="https://github.com/Wan-Video/Wan2.1">Code</a> |
                   <a href="https://huggingface.co/Wan-AI">Huggingface</a> |
                   <a href="https://modelscope.cn/organization/Wan-AI">Modelscope</a>
               </div>
                <div style="text-align: center; font-size: 16px; font-weight: bold; margin-bottom: 20px;">
                   We are excited to announce that Wan's international experience page is officially live, supporting image and video generation, and it's completely free. We welcome you to try it out!
                   <a href="https://wan.video/wanxiang/creation">Wan Web</a>
               </div>

               """)
    t2v_task_id = gr.State(value="")
    i2v_task_id = gr.State(value="")
    status = gr.State(value=False)
    task = gr.State(value="t2v")
    with gr.Row():
        with gr.Column():
            with gr.Row():
                with gr.Tabs():
                    # Text to Video Tab
                    with gr.TabItem("Text to Video") as t2v_tab:
                        with gr.Row():
                            txt2vid_prompt = gr.Textbox(
                                label="Prompt",
                                placeholder="Describe the video you want to generate",
                                lines=19,
                            )
                        with gr.Row():
                            resolution = gr.Dropdown(
                                label="Resolution",
                                choices=["1280*720", "960*960", "720*1280", "1088*832", "832*1088"],
                                value="1280*720",
                            )
                        with gr.Row():
                            run_t2v_button = gr.Button("Generate Video")
                            t2v_refresh_status = gr.Button("Refresh Generating Status", visible=False)
                    # Image to Video Tab
                    with gr.TabItem("Image to Video") as i2v_tab:
                        with gr.Row():
                            with gr.Column():
                                img2vid_image = gr.Image(
                                    type="filepath",
                                    label="Upload Input Image",
                                    elem_id="image_upload",
                                )
                                img2vid_prompt = gr.Textbox(
                                    label="Prompt",
                                    placeholder="Describe the video you want to generate",
                                    value="",
                                    lines=5,
                                )
                        with gr.Row():
                            run_i2v_button = gr.Button("Generate Video")
                            i2v_refresh_status = gr.Button("Refresh Generating Status", visible=False)
        with gr.Column():
            with gr.Row():
                result_gallery = gr.Video(label='Generated Video',
                                          interactive=False,
                                          height=500)
            with gr.Row():
                watermark_wan = gr.Checkbox(label="Watermark", value=True, visible=True, container=False)
                seed = gr.Number(label="Seed", value=-1, container=True)
                # cost_time = gr.Number(label="Cost Time(secs)", value=online_get_cost_time, interactive=False,
                #                       every=FRESH_TIME, inputs=[task, t2v_task_id, i2v_task_id], container=True)
                cost_time = gr.Number(label="Cost Time(secs)", value=0, interactive=False, container=True)
                # waiting_time = gr.Number(label="Estimated Waiting Time(secs)", value=online_get_waiting_time, interactive=False,
                #                       every=FRESH_TIME, inputs=[task, t2v_task_id, i2v_task_id], container=True)
                waiting_time = gr.Number(label="Estimated Waiting Time(secs)", value=0, interactive=False, container=True)
                # process_bar = gr.Slider(show_label=True, label="", value=get_process_bar, maximum=100,
                #                         interactive=True, every=FRESH_TIME, inputs=[task, t2v_task_id, i2v_task_id, status], container=True)
                process_bar = gr.Slider(show_label=True, label="", value=100, maximum=100,
                                        interactive=True, container=True)
    with gr.Row():
        gr.Markdown('<span style="color: blue;">Due to automatic refresh of task status causing significant network congestion, please manually click the "Refresh Generating Status" button to check the task status.</span>')
    fake_video = gr.Video(label='Examples', visible=False, interactive=False)
    with gr.Row(visible=True) as t2v_eg:
        gr.Examples(t2v_examples,
                    inputs=[txt2vid_prompt, result_gallery],
                    outputs=[result_gallery])

    with gr.Row(visible=False) as i2v_eg:
        gr.Examples(i2v_examples,
                    inputs=[img2vid_prompt, img2vid_image, result_gallery],
                    outputs=[result_gallery])


    def process_change(task_id, task):
        status = task_status.get(task_id, {"status":False})["status"]
        if status:
            video_url = task_status[task_id]["url"]
            ret_t2v_btn = gr.Button(visible=True) if task == 't2v' else gr.Button()
            ret_t2v_status_btn = gr.Button(visible=False) if task == 't2v' else gr.Button()
            ret_i2v_btn = gr.Button(visible=True) if task == 'i2v' else gr.Button()
            ret_i2v_status_btn = gr.Button(visible=False) if task == 'i2v' else gr.Button()
            return gr.Video(value=video_url), ret_t2v_btn, ret_i2v_btn, ret_t2v_status_btn, ret_i2v_status_btn
        return gr.Video(value=None), gr.Button(), gr.Button(), gr.Button(), gr.Button()

    def online_process_change(task, t2v_task_id, i2v_task_id):
        task_id = t2v_task_id if task == 't2v' else i2v_task_id
        return process_change(task_id, task)

    process_bar.change(online_process_change, inputs=[task, t2v_task_id, i2v_task_id],
                       outputs=[result_gallery, run_t2v_button, run_i2v_button,
                                t2v_refresh_status, i2v_refresh_status])


    def switch_i2v_tab():
        return gr.Row(visible=False), gr.Row(visible=True), "i2v"


    def switch_t2v_tab():
        return gr.Row(visible=True), gr.Row(visible=False), "t2v"


    i2v_tab.select(switch_i2v_tab, outputs=[t2v_eg, i2v_eg, task])
    t2v_tab.select(switch_t2v_tab, outputs=[t2v_eg, i2v_eg, task])

    run_t2v_button.click(
        fn=t2v_generation_async,
        inputs=[txt2vid_prompt, resolution, watermark_wan, seed],
        outputs=[t2v_task_id, status, run_t2v_button, t2v_refresh_status, cost_time, waiting_time],
    )

    run_i2v_button.click(
        fn=i2v_generation_async,
        inputs=[img2vid_prompt, img2vid_image, watermark_wan, seed],
        outputs=[i2v_task_id, status, run_i2v_button, i2v_refresh_status, cost_time, waiting_time],
    )

    def status_refresh(task_id, task, status):
        if task_id in task_status and not task_status[task_id]["status"]:
            cost_time = int(time.time() - task_status[task_id]["time"])
        else:
            cost_time = 0
        status, video_url = get_result_with_task_id(task_id)
        if task_id not in task_status:
            task_status[task_id] = {"status": status, "url": video_url, "time": time.time(), "value": 100 if status else 0}
        else:
            task_status[task_id]["status"] = status
            task_status[task_id]["url"] = video_url
        waiting_time = get_waiting_time(task_id)
        value = task_status.get(task_id, {"value": 100})["value"]
        value = max(value, int(cost_time*100/waiting_time))
        task_status[task_id]["value"] = value if value < 100 else 100
        if not video_url == "" and status: value = 100
        process_bar = gr.Slider(label=f"({value}%)Generating" if value % 2 == 1 else f"({value}%)Generating.....", value=value)
        process_change_ret = process_change(task_id, task)
        return *process_change_ret, cost_time, waiting_time, process_bar


    t2v_refresh_status.click(
        fn=status_refresh,
        inputs=[t2v_task_id, task, status],
        outputs=[result_gallery, run_t2v_button, run_i2v_button,
                t2v_refresh_status, i2v_refresh_status,
                cost_time, waiting_time, process_bar]
    )

    i2v_refresh_status.click(
        fn=status_refresh,
        inputs=[i2v_task_id, task, status],
        outputs=[result_gallery, run_t2v_button, run_i2v_button,
                 t2v_refresh_status, i2v_refresh_status,
                 cost_time, waiting_time, process_bar]
    )

#demo.queue(max_size=10)
demo.launch(ssr_mode=False)