[vdr] Re: libxineoutput - A/V Sync
dave at optionsdsl.ca
Fri Sep 8 21:39:54 CEST 2006
Tero Saarni wrote:
> Dave wrote:
>> Im experiencing a problem with libxineoutput. The video and audio are
>> out of sync. the settings for the plugin correct it good for one
>> channel, but then are out for another channel, so Ive had to put it in
>> the "middle" so its kinda out of sync equally across all channels, but I
>> find it unacceptable. I also have an A/V sync problem on another
>> machine playing DVD's, where mplayer is fine, so I suspect it to be
>> xine-lib, rather than the plugin, I am just wondering if anyone else has
>> seen this. VDR 1.4.0, CVS libxineoutput. Latest xine-lib 1.1.2-r1 I
>> I shoud note that Im using spdif passthru. the DVD playback on another
>> machine is regular analog.
Some research shows that xine-lib 1.1.2+ is the problem, but I cant get
1.1.1 to use XvMC(nvidia). I experienced the same A/V sync problem
on another machine playing back a DVD.
So... I can use 1.1.1 if I can get it to work with XvMC.. for some
reason it wont use it, although it compiles fine and says its available
but always falls back to plain XV anyways.
> I'm also experiencing A/V sync problems with xineliboutput. They
> appeared when I switched from analog audio to spdif passthrough.
> I haven't been able to correlate the problem with anything specific
> but I think the format of the audio has an impact to the severity
> of the problem: AC-3 streams are more likely to be out of sync
> than PCM streams.
I also have occasional audio drop-outs. It is possible that they
> are caused by the coax cable but I suspect it might be software
I have always had audio drop outs on AC3 streams, but not PCM ones, the
5.1 ones on some channels isnt even useable, others will drop 3-4 times
in a few hours. I have this problem with softdevice and libxinoutput
and the xine plugin.. It didnt do it at all with one digital receiver
at all, but my new one does it.
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