Add TsFile (converted from iiyudana/2view_random50)

.gitattributes

@@ -58,3 +58,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 # Video files - compressed
 *.mp4 filter=lfs diff=lfs merge=lfs -text
 *.webm filter=lfs diff=lfs merge=lfs -text
+data/two_view_random50.tsfile filter=lfs diff=lfs merge=lfs -text

README.md

@@ -0,0 +1,89 @@
+---
+license: apache-2.0
+task_categories:
+- robotics
+tags:
+- LeRobot
+- robotics
+- time-series
+- tsfile
+modality: timeseries
+pretty_name: "2view_random50 TsFile"
+configs:
+- config_name: default
+  data_files:
+  - split: train
+    path: data/two_view_random50.tsfile
+---
+
+# 2view_random50 TsFile
+
+This dataset is an Apache TsFile conversion of the Hugging Face dataset
+[`iiyudana/2view_random50`](https://huggingface.co/datasets/iiyudana/2view_random50).
+The source dataset was created with [LeRobot](https://github.com/huggingface/lerobot)
+and is licensed under Apache 2.0.
+
+Modalities: Time-series. The original visual MP4 streams remain available in
+the source dataset; this repository stores the numeric robot state, action,
+frame metadata, task index, and episode tags as TsFile.
+
+## Source Dataset
+
+- Original dataset: [`iiyudana/2view_random50`](https://huggingface.co/datasets/iiyudana/2view_random50)
+- Source task: `"Pick up the cube with the right arm and transfer it to the left arm."`
+- Codebase version: LeRobot `v2.1`
+- Robot type: `aloha`
+- Split: `train` (`0:50`)
+- Episodes: `50`
+- Frames: `20,000`
+- Sampling rate: `50 fps`
+- Tasks: `1`
+- Videos: `100` MP4 files across `observation.images.top` and
+  `observation.images.right_wrist`
+- Source data path: `data/chunk-{episode_chunk:03d}/episode_{episode_index:06d}.parquet`
+- Source video path: `videos/chunk-{episode_chunk:03d}/{video_key}/episode_{episode_index:06d}.mp4`
+
+## Converted Files
+
+- TsFile: `data/two_view_random50.tsfile`
+- Rows: `20,000`
+- Table name: `two_view_random50`
+- Time precision: milliseconds
+- Mirrored metadata: `meta/`, with `meta/info.json` updated for the TsFile artifact
+
+## Schema
+
+`Time` is generated as `round(timestamp * 1000)` milliseconds. Time restarts
+within each episode, and devices are identified by the original LeRobot tag
+columns.
+
+- TAG columns: `episode_index`, `task_index`
+- FIELD metadata columns: `frame_index`, `sample_index`
+- FIELD vectors: `observation_state_0..observation_state_13` and
+  `action_0..action_13`
+
+## Conversion Notes
+
+- The source `timestamp` column is dropped after being mapped to `Time`; it is
+  recoverable as `Time / 1000` seconds.
+- The source `index` column is renamed to `sample_index`.
+- Vector columns are flattened by preserving the full source column name,
+  replacing `.` with `_`, and appending the element index.
+- Source video features are not uploaded here: `observation.images.top` and
+  `observation.images.right_wrist`. Use the original dataset's
+  [`videos/`](https://huggingface.co/datasets/iiyudana/2view_random50/tree/main/videos)
+  tree for the visual streams.
+- Aside from the redundant `timestamp` column and omitted video files, no
+  numeric time-series rows are intentionally dropped.
+
+## Read Example
+
+```python
+from tsfile import TsFileReader
+
+path = "data/two_view_random50.tsfile"
+
+with TsFileReader(path) as reader:
+    tables = reader.get_all_table_schemas()
+    print(tables.keys())
+```

data/two_view_random50.tsfile

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cec984015a4b541b4cf96f19e6148a1a71427d0a0bbbdfda751a611b9e02acb2
+size 2195882

meta/episodes.jsonl

@@ -0,0 +1,50 @@
+{"episode_index": 0, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 1, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 2, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 3, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 4, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 5, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 6, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 7, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 8, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 9, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 10, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 11, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 12, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 13, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 14, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 15, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 16, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 17, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 18, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 19, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 20, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 21, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 22, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 23, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 24, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 25, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 26, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 27, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 28, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 29, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 30, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 31, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 32, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 33, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 34, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 35, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 36, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 37, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 38, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 39, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 40, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 41, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 42, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 43, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 44, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 45, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 46, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 47, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 48, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}
+{"episode_index": 49, "tasks": ["Pick up the cube with the right arm and transfer it to the left arm."], "length": 400}

meta/info.json

@@ -0,0 +1,364 @@
+{
+  "codebase_version": "v2.1",
+  "robot_type": "aloha",
+  "total_episodes": 50,
+  "total_frames": 20000,
+  "total_tasks": 1,
+  "total_videos": 100,
+  "total_chunks": 1,
+  "chunks_size": 1000,
+  "fps": 50,
+  "splits": {
+    "train": "0:50"
+  },
+  "data_path": "data/two_view_random50.tsfile",
+  "features": {
+    "Time": {
+      "dtype": "int64",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "TIME",
+      "unit": "ms"
+    },
+    "episode_index": {
+      "dtype": "int64",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "TAG"
+    },
+    "task_index": {
+      "dtype": "int64",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "TAG"
+    },
+    "frame_index": {
+      "dtype": "int64",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "sample_index": {
+      "dtype": "int64",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_0": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_1": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_2": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_3": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_4": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_5": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_6": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_7": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_8": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_9": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_10": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_11": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_12": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "observation_state_13": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_0": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_1": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_2": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_3": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_4": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_5": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_6": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_7": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_8": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_9": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_10": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_11": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_12": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "action_13": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    }
+  },
+  "video_path_original": "videos/chunk-{episode_chunk:03d}/{video_key}/episode_{episode_index:06d}.mp4",
+  "tsfile_conversion": {
+    "source_dataset": "iiyudana/2view_random50",
+    "source_data_path": "data/chunk-{episode_chunk:03d}/episode_{episode_index:06d}.parquet",
+    "converted_data_path": "data/two_view_random50.tsfile",
+    "table_name": "two_view_random50",
+    "granularity": "merged",
+    "time_precision": "ms",
+    "time_mapping": {
+      "source": "timestamp",
+      "fps": 50,
+      "unit": "milliseconds"
+    },
+    "tag_columns": [
+      "episode_index",
+      "task_index"
+    ],
+    "row_count": 20000,
+    "feature_source": "features describe the converted TsFile schema",
+    "flattened_features": {
+      "observation.state": [
+        "observation_state_0",
+        "observation_state_1",
+        "observation_state_2",
+        "observation_state_3",
+        "observation_state_4",
+        "observation_state_5",
+        "observation_state_6",
+        "observation_state_7",
+        "observation_state_8",
+        "observation_state_9",
+        "observation_state_10",
+        "observation_state_11",
+        "observation_state_12",
+        "observation_state_13"
+      ],
+      "action": [
+        "action_0",
+        "action_1",
+        "action_2",
+        "action_3",
+        "action_4",
+        "action_5",
+        "action_6",
+        "action_7",
+        "action_8",
+        "action_9",
+        "action_10",
+        "action_11",
+        "action_12",
+        "action_13"
+      ]
+    },
+    "renamed_features": {
+      "index": "sample_index"
+    },
+    "dropped_features": [
+      "timestamp"
+    ],
+    "omitted_features": [
+      "observation.images.top",
+      "observation.images.right_wrist"
+    ],
+    "original_video_path": "videos/chunk-{episode_chunk:03d}/{video_key}/episode_{episode_index:06d}.mp4",
+    "original_video_features": {
+      "observation.images.top": {
+        "dtype": "video",
+        "shape": [
+          480,
+          640,
+          3
+        ],
+        "names": [
+          "height",
+          "width",
+          "channels"
+        ],
+        "info": {
+          "video.height": 480,
+          "video.width": 640,
+          "video.codec": "av1",
+          "video.pix_fmt": "yuv420p",
+          "video.is_depth_map": false,
+          "video.fps": 50,
+          "video.channels": 3,
+          "has_audio": false
+        }
+      },
+      "observation.images.right_wrist": {
+        "dtype": "video",
+        "shape": [
+          480,
+          640,
+          3
+        ],
+        "names": [
+          "height",
+          "width",
+          "channels"
+        ],
+        "info": {
+          "video.height": 480,
+          "video.width": 640,
+          "video.codec": "av1",
+          "video.pix_fmt": "yuv420p",
+          "video.is_depth_map": false,
+          "video.fps": 50,
+          "video.channels": 3,
+          "has_audio": false
+        }
+      }
+    },
+    "original_video_source": "https://huggingface.co/datasets/iiyudana/2view_random50/tree/main/videos",
+    "video_policy": "Videos are not uploaded to this repository; use the original HuggingFace dataset videos."
+  }
+}

meta/tasks.jsonl

@@ -0,0 +1 @@
+{"task_index": 0, "task": "Pick up the cube with the right arm and transfer it to the left arm."}