Yes, I do have the extra audio buffering turned on. <br>Thanks,<br>Siva<br><br><div><span class="gmail_quote">On 5/4/07, <b class="gmail_sendername">Patrick Ouellette</b> <<a href="mailto:pat@flying-gecko.net">pat@flying-gecko.net
</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On Thu, May 03, 2007 at 10:18:29PM -0400, Siva Alagarsamy wrote:<br>>
<br>> Hi,<br>> When I use XvMC with HD channels, the audio break up often and I see lot of<br>> these messages like these.<br>><br>><br>> 2007-05-03 15:31: 18.312 WriteAudio: buffer underrun<br>> 2007-05-03 15:31:
18.298 NVP: Video is 7.24978 frames behind audio (too<br>> slow), skipping A/V wait.<br>><br>><br>> I have AMD Athlon64 3000+ processor with 512MB RAM, ATI HDTV Wonder, NVIDIA<br>> FX 5200 video card & SB Live card
<br>> I have ubuntu feisty(i386) with the latest kernel and mythtv packages.<br>><br>> Without XvMC, I have no problem with the video or audio. I trying to get<br>> this XvMC working, so I can setup another computer for frontend with a less
<br>> CPU power.<br>><br>> I have XVideoTextureSyncToVBlank & XVideoBlitterSyncToVBlank turned off in<br>> nvidia settings.<br>> The xorg.conf has "UseEvents" set to "true". I have tried different NVAGP
<br>> options.<br>><br>> XvMC works fine with mplayer. I tried playing a HD recording with mplayer<br>> -vo xvmc and it plays without any problem. If I watch the same recording<br>> with MythTV, I get audio stutter problem with lot of "WriteAudio: buffer
<br>> underrun".<br>><br><br>Have you enabled extra audio buffering? That clears up the stuttering<br>on my system when running XvMC.<br><br>My system: AMD64 3000+, 512MB RAM, NVIDIA 6600, NFORCE 4 chipset using
<br>S/PDIF out (ALSA drivers), on Debian SID.<br><br>Pat<br><br>--<br><br>Patrick Ouellette <a href="mailto:pat@flying-gecko.net">pat@flying-gecko.net</a><br><a href="mailto:kb8pym@arrl.net">kb8pym@arrl.net
</a> Amateur Radio: KB8PYM<br>Living life to a Jimmy Buffett soundtrack<br>"Crank the amp to 11, this needs more cowbell - and a llama wouldn't hurt either"<br>_______________________________________________
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</a><br></blockquote></div><br>