ffmpeg note

• To Convert video to 720p

  ffmpeg -i input.mp4 -s 1280x720 -b:v 1024k -bufsize 1024k output.avi

• To set the video bitrate of the output file to 64 kbit/s:

  ffmpeg -i input.avi -b:v 64k -bufsize 64k output.avi

• To force the frame rate of the output file to 24 fps:

  ffmpeg -i input.avi -r 24 output.avi

• To remove audio

  # -c:v copy copies the video stream.
  # -an removes the audio stream.
  ffmpeg -i input.mp4 -c:v copy -an output.mp4

• To cut mp3

ffmpeg -i input.mp3 -ss 00:00:00 -t 00:00:01 -acodec copy output.mp3