Add TsFile (converted from lerobot/fmb)

.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/fmb.tsfile filter=lfs diff=lfs merge=lfs -text

README.md

@@ -0,0 +1,52 @@
+---
+license: apache-2.0
+task_categories:
+- robotics
+tags:
+- LeRobot
+- tsfile
+- timeseries
+- format:tsfile
+pretty_name: fmb
+modality: timeseries
+configs:
+- config_name: default
+  data_files:
+  - split: train
+    path: data/fmb.tsfile
+---
+
+# fmb (TsFile)
+
+Apache TsFile version of [`lerobot/fmb`](https://huggingface.co/datasets/lerobot/fmb).
+
+## Overview
+
+A [LeRobot](https://github.com/huggingface/lerobot) robot-manipulation dataset. The source card is auto-generated ("This dataset was created using LeRobot") and does not add a free-text description; the facts below are taken from the source `meta/info.json`.
+
+- **Robot:** unknown
+- **Episodes:** 1804
+- **Frames:** 338188
+- **Sampling rate:** 10 fps
+- **Splits:** a single `train` split
+
+## Schema (TsFile structure)
+
+- **Time** (INT64, milliseconds) — `round(timestamp * 1000)`; the source `timestamp` column (seconds) is dropped because it equals `Time / 1000`.
+- **episode_index** (TAG), **task_index** (TAG) — device dimensions; query one episode with `WHERE episode_index = <n>`.
+- **frame_index** (FIELD, INT64), **sample_index** (FIELD, INT64, from the source `index`) — per-frame bookkeeping.
+- Vector columns (single-precision FLOAT, source name with `.` → `_` and an element index appended):
+  - observation.state → `observation_state_0`..`observation_state_7` (FLOAT)
+  - action → `action_0`..`action_6` (FLOAT)
+
+Camera video streams are **not** included in this repository; see the original dataset for the videos: https://huggingface.co/datasets/lerobot/fmb (`videos/` directory).
+
+## Usage
+
+Read the `.tsfile` files with the Apache TsFile Java or Python SDK.
+
+## Source & license
+
+- Original dataset: https://huggingface.co/datasets/lerobot/fmb
+- Author / publisher: lerobot
+- License: apache-2.0

data/fmb.tsfile

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2fe6903c8530ad13d67a2656566b83f02001527c6a148da917ef6c5415af824b
+size 32372079

meta/info.json

@@ -0,0 +1,312 @@
+{
+  "codebase_version": "v3.0",
+  "robot_type": "unknown",
+  "total_episodes": 1804,
+  "total_frames": 338188,
+  "total_tasks": 24,
+  "chunks_size": 1000,
+  "fps": 10,
+  "splits": {
+    "train": "0:1804"
+  },
+  "data_path": "data/fmb.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"
+    },
+    "next_reward": {
+      "dtype": "float32",
+      "shape": [
+        1
+      ],
+      "tsfile_role": "FIELD"
+    },
+    "next_done": {
+      "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"
+    },
+    "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"
+    }
+  },
+  "data_files_size_in_mb": 100,
+  "video_files_size_in_mb": 200,
+  "video_path_original": "videos/{video_key}/chunk-{chunk_index:03d}/file-{file_index:03d}.mp4",
+  "tsfile_conversion": {
+    "source_dataset": "lerobot/fmb",
+    "source_data_path": "data/chunk-{chunk_index:03d}/file-{file_index:03d}.parquet",
+    "converted_data_path": "data/fmb.tsfile",
+    "table_name": "fmb",
+    "granularity": "merged",
+    "time_precision": "ms",
+    "time_mapping": {
+      "source": "auto",
+      "fps": 30,
+      "unit": "milliseconds"
+    },
+    "tag_columns": [
+      "episode_index",
+      "task_index"
+    ],
+    "row_count": 338188,
+    "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"
+      ],
+      "action": [
+        "action_0",
+        "action_1",
+        "action_2",
+        "action_3",
+        "action_4",
+        "action_5",
+        "action_6"
+      ]
+    },
+    "renamed_features": {
+      "next.reward": "next_reward",
+      "next.done": "next_done",
+      "index": "sample_index"
+    },
+    "dropped_features": [
+      "timestamp"
+    ],
+    "omitted_features": [
+      "observation.images.image_side_1",
+      "observation.images.image_side_2",
+      "observation.images.image_wrist_1",
+      "observation.images.image_wrist_2"
+    ],
+    "original_video_path": "videos/{video_key}/chunk-{chunk_index:03d}/file-{file_index:03d}.mp4",
+    "original_video_features": {
+      "observation.images.image_side_1": {
+        "dtype": "video",
+        "shape": [
+          256,
+          256,
+          3
+        ],
+        "names": [
+          "height",
+          "width",
+          "channel"
+        ],
+        "video_info": {
+          "video.fps": 10.0,
+          "video.codec": "av1",
+          "video.pix_fmt": "yuv420p",
+          "video.is_depth_map": false,
+          "has_audio": false
+        }
+      },
+      "observation.images.image_side_2": {
+        "dtype": "video",
+        "shape": [
+          256,
+          256,
+          3
+        ],
+        "names": [
+          "height",
+          "width",
+          "channel"
+        ],
+        "video_info": {
+          "video.fps": 10.0,
+          "video.codec": "av1",
+          "video.pix_fmt": "yuv420p",
+          "video.is_depth_map": false,
+          "has_audio": false
+        }
+      },
+      "observation.images.image_wrist_1": {
+        "dtype": "video",
+        "shape": [
+          256,
+          256,
+          3
+        ],
+        "names": [
+          "height",
+          "width",
+          "channel"
+        ],
+        "video_info": {
+          "video.fps": 10.0,
+          "video.codec": "av1",
+          "video.pix_fmt": "yuv420p",
+          "video.is_depth_map": false,
+          "has_audio": false
+        }
+      },
+      "observation.images.image_wrist_2": {
+        "dtype": "video",
+        "shape": [
+          256,
+          256,
+          3
+        ],
+        "names": [
+          "height",
+          "width",
+          "channel"
+        ],
+        "video_info": {
+          "video.fps": 10.0,
+          "video.codec": "av1",
+          "video.pix_fmt": "yuv420p",
+          "video.is_depth_map": false,
+          "has_audio": false
+        }
+      }
+    },
+    "original_video_source": "https://huggingface.co/datasets/lerobot/fmb/tree/main/videos",
+    "video_policy": "Videos are not uploaded to this repository; use the original HuggingFace dataset videos."
+  }
+}