[linux-dvb] Re: mpeg 4:2:2

[Nico Sabbi <nsabbi@tiscali.it>]

Christian Schuld wrote:

> Hi,
>
> On Saturday 15 May 2004 21:01, Johannes Stezenbach wrote:
>  
> > Christian Schuld wrote:
> >    
> > > does anybody known a solution to playback mpeg 4:2:2 (like the EBU Feeds
> > > on Eutelsat W3 @ 7.0E) with linux?
> > >
> > > I have tried my full-featured av711x based rev 1.3 card => frozen
> > > picture, many arm-crashes after a few seconds.
> > >
> > > Mplayer (todays cvs) refuses to display video with this error messages:
> > > MPEG: bad sequence header extension
> > > Video: Cannot read properties.
> > >
> > > Xine (0.9.23) dies with a "bad extension" error message.
> > >
> > > libmpeg2's mpeg2dec (0.4.0) on other hand is able to playback the demuxed
> > > video stream.
> > >
> > > Any other suggestions?
> > >      
> > mplayer supports many codecs, including libmpeg2.
> > Try 'mplayer -vc help'.
> >    
> The -vc switch doesn't help, error message is still the same. I also tried 
> linking mplayer against the latest libmpeg2, but the result is the same: "bad 
> sequence header extension"
>
> So the problem in mplayer must be before codec comes in play, maybe in 
> somewhere in the demuxer? 
> Perhaps Nico can comment on this? 
> If it helps I can provide some short transport stream samples.
>
>  
> > Johannes
> >    
>  
If I remember correctly the latest libavcodec can decode mpeg2-422 and 
444, so you can try a fresh checkout of
your copy of libavcodec in mplayer.

       Nico



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