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a-r-r-o-w/ffmpeg_dump.md

Last active January 6, 2025 03:12
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ffmpeg dump
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ffmpeg_dump.md
  1. Extract first frame from video and save as PNG
for file in *; do ffmpeg -y -i "$file" -frames:v 1 "../images/${file%.*}.png"; done
  1. Horizontally stack multiple videos
ffmpeg -i a.mp4 -i b.mp4 -i c.mp4 -i d.mp4 -filter_complex hstack=inputs=4 output.mp4
# For vertical stacking, use vstack
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