[FFmpeg-devel] ffmpeg.c: Weird AVI special-case

[Reimar Döffinger]

On Sun, Feb 05, 2012 at 03:33:36PM +0100, Michael Niedermayer wrote:
> On Sun, Feb 05, 2012 at 03:23:07PM +0100, Reimar Döffinger wrote:
> > On Sun, Feb 05, 2012 at 03:07:52PM +0100, Michael Niedermayer wrote:
> > > On Sat, Feb 04, 2012 at 07:05:50PM +0100, Reimar Döffinger wrote:
> > > > Hello,
> > > > this is related to trac #978.
> > > > Why does transcode_init double the codec time base for the destination
> > > > file for AVI and only for AVI?
> > > > And if you know the answer, could you please add a comment in the code?
> > > > The commit message doesn't really help a bit either.
> > > 
> > > added some comment yestarday
> > 
> > Yes, I saw it. I am not sure whether the fact that for most codecs
> > this leads to a time base of 1/2*fps instead of just 1/fps is really
> > intended and sensible though...
> 
> the alternative is to fail with non monotone timestamps for some files

Well, at least when transcoding it could just drop those frames.
Maybe that's just me, but I also didn't find a way to override this
choice, e.g. by specifying -r at the right location.
I haven't tried, but I guess even the setpts filter will be of no
help here.