[linux-dvb] CVS driver a/v asynchronous

[Marcus O.C. Metzler <mocm@convergence.de>]

Klaus Schmidinger writes:
 > Dave Chapman wrote:
 > > 
 > > > - Sometimes video and audio are out of sync, even if a channel is viewed
 > > >   'live'. I have no idea where this could come from, must be a driver
 > > >   problem!?
 > > 
 > > There is an  option to turn on AV_SYNC - I think it's part of the
 > > /dev/ost/audio device.  I haven't tried it, as I have never had sync problems.
 > 
 > I have added the lines
 > 
 >            if (fd_audio >= 0)
 >               CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true));
 > 
 > to the cDvbApi::SetChannel() function in VDR (right after the
 > 'SetTpid(Tpid, DMX_OUT_DECODER);' call), but I am still
 > getting asynchronous audio/video sometimes. This is really odd
 > because I never had that in "live viewing" with the old driver.
 > It's almost as if the driver would process the data stream before
 > displaying it (and hence cause the trouble).
 > 
 > Can one of the driver developers please comment on this?
 > 

Working on it.

Marcus

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Dr. Marcus Metzler                             
mocm@netcologne.de                     http://www.metzlerbros.de
mocm@convergence.de                    http://www.convergence.de

Convergence Integrated Media GmbH          
Rosenthaler Str. 51                   
D-10178 Berlin                             
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