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evo-video-sampling

Extracts frames from an MP4 video file at a specified target FPS using sequential reading. Returns sampled grayscale frames and their original frame indices.

tasks-evolved/dynamic-object-aware-egomotion/environment/skills/evo-video-sampling/SKILL.md

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# evo-video-sampling

Extracts frames from an MP4 video at a target FPS using reliable sequential reading
(avoids unreliable CAP_PROP_POS_FRAMES seeking in compressed MP4s).

## Key Function

- `sample_video_frames(video_path, target_fps=6)` — Returns `(sampled_frames, frame_indices, original_fps)`
  - `sampled_frames`: list of grayscale np.uint8 2D arrays
  - `frame_indices`: list of original frame indices (0-based)
  - `original_fps`: the video's native FPS

## Usage