[FFmpeg-user] filter for changing frame rate

[Carl Eugen Hoyos]

Am Mo., 13. Mai 2019 um 13:36 Uhr schrieb Daniel Oberhoff via
ffmpeg-user <ffmpeg-user at ffmpeg.org>:
>
>
> >
> > You can not.
>
> I am curious what exactly the hindrance is. As I understand at least mp4 there is not really a concept of frame rate in the file and in theory every frame can have a different „rate“, defined solely by pts.

FFmpeg's mp4 muxer does not support variable frame rate.

Carl Eugen