[FFmpeg-user] Accurate Trimming Without Transcoding

Carl Eugen Hoyos cehoyos at ag.or.at
Mon Mar 7 11:17:05 CET 2016

Robert Nagy <ronag89 <at> gmail.com> writes:

> if I have a 50 fps file with a fixed gop of 50 frames and 
> I'd like to trim the first 24 frames without transcoding.

Sorry if I misunderstand:
If all frames from the second to 49th depend on the first 
frame you cannot cut away the first 24 frames: It would 
make the remaining 25 frames of the first gop unreadable.

Carl Eugen

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