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chaojian-zhang/(Snippet, Reference, Command) ffmpeg.k.md

Last active September 26, 2023 23:44
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(Snippet, Reference, Command) ffmpeg.k.md
  • Convert images to video: ffmpeg -framerate 4 -start_number 51 -i _DSC12%d.jpg -c:v libx264 -r 4 output.mp4 (Recommendataion) Use Screen2Gif's editor instead.
  • Convert video into gif
  • Convert video into image sequence:
  • Crop video: ffmpeg -i in.mp4 -vf crop=w:h:x:y out.mp4
  • Change video frame rate:
  • Scale video resolution: ffmpeg -i input.avi -vf scale=320:240 output.avi
  • Scaleing while keeping aspect ratio: ffmpeg -i input.jpg -vf scale=320:-1 output_320.png
  • Scale images: ffmpeg -i input.jpg -vf scale=320:240 output_320x240.png
  • Multiple filters (separate using comma): ffmpeg -i 1.mp4 -vf "crop=720:720:264:0, scale=320:-1" 1.gif
  • Trim/Cut video: ffmpeg -i input.mp4 -ss 00:05:20 -t 00:10:00 -c:v copy -c:a copy output1.mp4
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