feat(dataset): add tool to convert images to video datasets #2560
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jadechoghari
December 1, 2025 12:50
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Pull request overview
This PR adds a new dataset editing tool to convert image-based datasets to video format, providing storage efficiency and potentially improved data loading performance. The implementation integrates with the existing lerobot_edit_dataset script and reuses the existing encode_video_frames utility from the video_utils module.
Key Changes:
- Added
convert_to_videooperation type with configurable video encoding parameters (codec, quality, GOP size, etc.) - Implemented parallel processing at both episode and image levels using ThreadPoolExecutor
- Added comprehensive documentation with usage examples in the command-line tool help text and documentation
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 5 comments.
| File | Description |
|---|---|
| src/lerobot/scripts/lerobot_edit_dataset.py | Adds core implementation: ConvertToVideoConfig dataclass, image extraction/saving functions, video encoding logic, and integration with the main edit_dataset command |
| docs/source/using_dataset_tools.mdx | Documents the new convert_to_video operation with usage examples and parameter descriptions |
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What this does
feat(dataset): add tool to convert images to video datasets
Very useful to encode images dataset into videos.
Will work out of the box