[FFmpeg-user] optimal exact segmentation without re-encoding

Carl Zwanzig cpz at tuunq.com
Thu Jul 6 04:39:25 EEST 2023

On 7/5/2023 3:29 PM, David Bernat wrote:
> Premise: segment a mov file into about one second segments without
> re-encoding; yet preserving concatenation; such that the segmentation is
> embarrassingly parallel, for high-speed segmenting.

What is the purpose of these segmented files (how will they be used)? Are 
they going to be processed and then assembled together (which may involve 
decode/recode operations). Depending on the unknown intermediate work, it 
may be faster overall to decode all into an uncompressed state and work on 
that before concatenating into a reencode pass (which could also be done in 
segments which are then themselves concatenated).

Also, please post some of the commands you've used.


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