[FFmpeg-user] Extract Images from video and rebuild video with these image

dreamer92 antitan at hotmail.fr
Fri Mar 6 00:02:05 CET 2015


I have a very interesting question i think, i did a simple test.

first step : i extract images from a little video (duration : 1 minute and 4
seconds ) :
ffmpeg -i C:\test\video.mp4 -r 30 -s 640x360 -f image2 C:\test\foo-%05d.jpeg

second step : i want to rebuild the initial video with these extracted
images with same parameters:
ffmpeg -f image2 -i C:\test\foo-%05d.jpeg -r 30-s 640x360 C:\test\final.mp4

Special result : Initial video (video.mp4) duration was 1 minute and 4
seconds and new video generated (final.mp4) duration is 1 minute and 17
secondes :  the new video is longer and the new film seems  slightly slower
than the initial video.

My question : Is it possible to get exactly the same film like initial (same
duration , same speed) rebuilding the video from its exctrated images ?

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