How to recalculate duration in video metadata?

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bezvozni2020-06-01 21:43:19

Video

bezvozni, 2020-06-01 21:43:19

After acceleration

ffmpeg -i in.mp4 -vf "setpts=PTS/4000" -r 120 0(4kx).mp4

the video is a fraction of a second long, but the duration in the metadata remains several hours. Because of what the same ffmpeg does not process it correctly. How can you set the correct duration in the metadata for a lot of videos?

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1 answer(s)

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Sergey Tikhonov, 2020-06-03
@bezvozni

Is there audio in the source? If yes, then its duration remained a few hours.