[FFmpeg-trac] #7939(undetermined:new): The concat demuxer changes a constant frame rate into variable one
FFmpeg
trac at avcodec.org
Fri Jul 24 04:37:10 EEST 2020
#7939: The concat demuxer changes a constant frame rate into variable one
-------------------------------------+-------------------------------------
Reporter: RigacciOrg | Owner:
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution:
Keywords: concat | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by dprestegard):
In case anyone is struggling, I found a workaround with the shiny new
version of mp4box which understands prores!
First, demux to an elementary prores stream like this
> mp4box -raw 1 input.mov
(you'll get a file with an apch extension etc
Then, remux to your target frame rate like this (23.976 in my case):
> mp4box -add demuxed.apch:fps=24000/1001 remux.mov
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7939#comment:3>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list