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Pepijn Kooijmans
9dfc9084e1
Addresses three of CarolinePascal's frames.py comments (the fourth, the subprocess re-encode, waits on #3611): - replace the bespoke _decode_pyav_direct PyAV decoder with lerobot.datasets.video_utils.decode_video_frames (torchcodec backend, PyAV fallback) — torchvision's VideoReader removal no longer applies - frames flow through the provider as torch.Tensor (C, H, W uint8); PIL is materialised only at the VLM-message boundary in to_image_blocks / to_video_block, where the chat backends need it - _decode now returns exactly one frame per timestamp (or [] on failure), so frames_at pairs them with strict=True Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>