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ffmpeg_notes [2019-08-02 14:05] – nikffmpeg_notes [2019-09-22 17:07] – nik
Line 12: Line 12:
  
 ====video -> image sequence==== ====video -> image sequence====
 +
 +...timelapsed (1 frame every 4 seconds)
  
 ''ffmpeg -i IMG_4566.MOV -r 0.25 IMG_4566_seq/output_%05d.png'' ''ffmpeg -i IMG_4566.MOV -r 0.25 IMG_4566_seq/output_%05d.png''
 +
 +==== concat ====
 +
 +a list of files (e.g. named files.txt)\\
 +`file 'dust_and_shadow_28min.mp4'`\\
 +`file 'dust_and_shadow_black.mp4'`\\
 +
 +then...
 +''ffmpeg -f concat -i files.txt -c copy dust_and_shadow_30min.mp4''
 +
 +also -> https://stackoverflow.com/questions/7333232/how-to-concatenate-two-mp4-files-using-ffmpeg
  
 ====ffmpeg filters  ==== ====ffmpeg filters  ====
  • ffmpeg_notes.txt
  • Last modified: 2023-08-27 12:27
  • by nik