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Extract key frames (I-frames) from video files using FFmpeg for analysis and processing.
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| name | ffmpeg-keyframes |
| description | Extract key frames (I-frames) from video files using FFmpeg for analysis and processing. |
Extract I-frames (keyframes) from video files. Keyframes are complete frames that don't depend on other frames for decoding.
ffmpeg -i input.mp4 -vf "select=eq(pict_type\,I)" -vsync vfr output_%03d.png
-vf "select=eq(pict_type\,I)": Select only I-frames (key frames)-vsync vfr: Variable frame rate to avoid duplicate frames%03d: Zero-padded 3-digit numberingProduces files like output_001.png, output_002.png, etc. in timeline order.
ffprobe -i input.mp4 -select_streams v -show_frames -show_entries frame=pict_type | grep -c "pict_type=I"