fix(info): fixing info metadata update when is_depth_map was set

src/lerobot/datasets/dataset_metadata.py

@@ -619,9 +619,13 @@ class LeRobotDatasetMetadata:
 
         video_keys = [video_key] if video_key is not None else self.video_keys
         for key in video_keys:
-            if not self.features[key].get("info", None):
+            existing = self.features[key].get("info") or {}
-                video_path = self.root / self.video_path.format(video_key=key, chunk_index=0, file_index=0)
+            # Skip only if real video info has already been written. The ``is_depth_map`` entry (created at feature creation) is not blocking.
-                self.info.features[key]["info"] = get_video_info(video_path, video_encoder=video_encoder)
+            if set(existing.keys()) - {"is_depth_map"}:
+                continue
+            video_path = self.root / self.video_path.format(video_key=key, chunk_index=0, file_index=0)
+            new_info = get_video_info(video_path, video_encoder=video_encoder)
+            self.info.features[key]["info"] = {**existing, **new_info}
 
     def update_chunk_settings(
         self,

src/lerobot/datasets/video_utils.py

@@ -1146,7 +1146,6 @@ def get_video_info(
 
         # Calculate fps from r_frame_rate
         video_info["video.fps"] = int(video_stream.base_rate)
-
         video_info["video.channels"] = get_pix_fmt_channels(video_stream.pix_fmt)
 
     # Reset logging level