[Ffmpeg-devel] Frame rates and time_base

Rich Felker dalias
Sat May 7 07:06:21 CEST 2005


On Sat, May 07, 2005 at 01:48:50AM +0200, M?ns Rullg?rd wrote:
> castet.matthieu at free.fr writes:
> 
> > Hi,
> >
> > Selon M?ns Rullg?rd <mru at inprovide.com>:
> >
> >> After the latest framerate/pts related changes, I have a few
> >> questions:
> >>
> >> - Is it still possible to find the framerate in AVCodecContext?  How?
> >> - What is the proper way to synchronize the pts values with timestamps
> >>   from the containter?
> >> - What will the next incompatible change be? ;-)
> >>
> > just one offtopic question :
> > will you fix the ogg2 demuxer for video stream ?
> 
> Um, yeah... been a bit busy lately.  I just had a look at your patch.
> Unfortunately, the only theora samples I could easily locate
> (mplayerhq.ftp samples), doesn't want to decode at all.  Are some
> special incantations required to make theora decode with libavcodec?

Yes, the demuxer somehow has to repack the "header packets" at the
beginning of the stream into "extradata"..

> BTW, who uses that codec anyway?

People who buy into Xiph propaganda..

Rich





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