[FFmpeg-user] Conform framerate with ffmpeg

[Carl Eugen Hoyos]

Reuben Martin <reuben.m <at> gmail.com> writes:

> On Friday, May 15, 2015 02:42:06 PM Carl Eugen Hoyos wrote:
> > Carles Vila <cvilad <at> gmail.com> writes:
> > > 2. Is there a way to conform a ProRes file
> > > directly with ffmpeg? All audio channels playback
> > > sample rate should also be modified accordingly.
> > 
> > How is that possible without transcoding?
> > 
> Just a guess, it might have a flag set somewhere to 
> indicate pull up or pull down for the audio sampling rate.

Allow me to rephrase:
You cannot change the audio playback sample rate without 
reencoding.

There is an input option -r that should allow changing 
the video speed, it does not always work though.
Please test and report back.

Carl Eugen