add metadata.

Not compatible yet with V2 /V3

info.json

@@ -1,24 +0,0 @@
-{
-  "codebase_version": "v0.3",
-  "robot_type": "piper",
-  "fps": 30,
-  "video": false,
-  "splits": {
-    "train": "0:13"
-  },
-  "total_episodes": 13,
-  "total_frames": 4588,
-  "total_tasks": 12,
-  "total_videos": 0,
-  "total_chunks": 0,
-  "chunks_size": 1000,
-  "license": "MIT",
-  "tags": [
-    "robotics",
-    "teleoperation",
-    "manipulation",
-    "imitation-learning",
-    "LeRobot-v3",
-    "piper-robot"
-  ]
-}

meta/info.json

@@ -1,52 +1,112 @@
 {
-  "codebase_version": "v0.3",
+  "codebase_version": "v3.0",
   "robot_type": "piper",
+  "total_episodes": 13,
+  "total_frames": 4588,
+  "total_tasks": 12,
+  "chunks_size": 1000,
+  "data_files_size_in_mb": 100,
+  "video_files_size_in_mb": 500,
   "fps": 30,
-  "video": false,
-  "encoding": {
+  "splits": {
+    "train": "0:13"
+  },
+  "data_path": "data/chunk-{chunk_index:03d}/file-{file_index:03d}.parquet",
+  "video_path": "videos/{video_key}/chunk-{chunk_index:03d}/file-{file_index:03d}.mp4",
+  "features": {
     "observation.images.table_cam": {
-      "type": "video_folder",
-      "path": "{episode_name}_images/observation.images.table_cam"
+      "dtype": "video",
+      "shape": [720, 800, 3],
+      "names": ["height", "width", "channel"],
+      "video_info": {
+        "video.fps": 30.0,
+        "video.codec": "av1",
+        "video.pix_fmt": "yuv420p",
+        "video.is_depth_map": false,
+        "has_audio": false
+      }
     },
     "observation.images.wrist_cam": {
-      "type": "video_folder",
-      "path": "{episode_name}_images/observation.images.wrist_cam"
+      "dtype": "video",
+      "shape": [480, 640, 3],
+      "names": ["height", "width", "channel"],
+      "video_info": {
+        "video.fps": 30.0,
+        "video.codec": "av1",
+        "video.pix_fmt": "yuv420p",
+        "video.is_depth_map": false,
+        "has_audio": false
+      }
     },
     "observation.state": {
-      "type": "hdf5",
-      "path": "observations/state"
+      "dtype": "float32",
+      "shape": [7],
+      "names": {
+        "motors": [
+          "joint_1",
+          "joint_2",
+          "joint_3",
+          "joint_4",
+          "joint_5",
+          "joint_6",
+          "joint_7"
+        ]
+      },
+      "fps": 30.0
     },
     "action": {
-      "type": "hdf5",
-      "path": "actions"
+      "dtype": "float32",
+      "shape": [7],
+      "names": {
+        "motors": [
+          "joint_1",
+          "joint_2",
+          "joint_3",
+          "joint_4",
+          "joint_5",
+          "joint_6",
+          "joint_7"
+        ]
+      },
+      "fps": 30.0
+    },
+    "episode_index": {
+      "dtype": "int64",
+      "shape": [1],
+      "names": null,
+      "fps": 30.0
+    },
+    "frame_index": {
+      "dtype": "int64",
+      "shape": [1],
+      "names": null,
+      "fps": 30.0
+    },
+    "timestamp": {
+      "dtype": "float32",
+      "shape": [1],
+      "names": null,
+      "fps": 30.0
+    },
+    "next.done": {
+      "dtype": "bool",
+      "shape": [1],
+      "names": null,
+      "fps": 30.0
+    },
+    "index": {
+      "dtype": "int64",
+      "shape": [1],
+      "names": null,
+      "fps": 30.0
+    },
+    "task_index": {
+      "dtype": "int64",
+      "shape": [1],
+      "names": null,
+      "fps": 30.0
     }
   },
-  "shapes": {
-    "observation.images.table_cam": [720, 800, 3],
-    "observation.images.wrist_cam": [480, 640, 3],
-    "observation.state": [7],
-    "action": [7]
-  },
-  "names": {
-    "observation.state": [
-      "joint_1",
-      "joint_2",
-      "joint_3",
-      "joint_4",
-      "joint_5",
-      "joint_6",
-      "joint_7"
-    ],
-    "action": [
-      "joint_1",
-      "joint_2",
-      "joint_3",
-      "joint_4",
-      "joint_5",
-      "joint_6",
-      "joint_7"
-    ]
-  },
   "license": "MIT",
   "description": "PiPER robot teaching episodes dataset containing teleoperation demonstrations for object manipulation tasks. Dataset includes synchronized robot state, actions, and dual-camera observations captured at 30 FPS."
 }