I'm not using the 350 for capturing but did notice a while ago that the playback suffered when capturing when the capturing ran out of buffers. Have you tried setting mpg_buffers=8 and/or turning off dynamic buffer allocation.
John > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:ivtv-devel- > [EMAIL PROTECTED] On Behalf Of Graeme Wilford > Sent: 02 August 2005 22:46 > To: ivtv-devel@lists.sourceforge.net > Subject: Re: [ivtv-devel] [PATCH] yuv improvements > > John, Ian - I've done some testing with this new patch. > > With mplayer, I get real bad frame drop and/or audio sync issues with > both avi's and DVDs - worse than before the patch *but* with xine, > playback is almost perfect in both cases. This is a little strange as > both xine and mplayer yielded similar results before the patch. > > Anyhow, on a 2.53GHz Celeron with 2.6.12-1.1372_FC3 kernel, X driver > 0.10.5, ivtv-0.3.7a (dynamic buffers) + this patch, latest firmware > and xine-0.99.3, I get perfect imaging with no tearing. Just the odd > discarded frame. Nice job! > > However, using YUV output on the 350 definitely causes simultaneous > mpeg recordings to corrupt and this is still evident with this patch. > The mpeg stream has lots of frames missing. I get no errors reported > by the ivtv driver so the loss of frames seems to occur at the > firmware level on the card, before the ivtv driver gets near it... > > If you can't reproduce the problem, please let me know the driver > options and firmware you're using. > > Cheers, > Wilf. > > On 02/08/05, John Harvey <[EMAIL PROTECTED]> wrote: > > This patch includes the previous patch I sent from Ian for filtering. It > > adds some improvements from Ian to fix some color alignment issues. > > Also thanks to Ian we have worked out how to do multi-buffering without > > crashing the firmware so this patch should fix all the tearing issues as > > well. > > > > Any problems let me know. > > > > John > > -- > [EMAIL PROTECTED] > > > ------------------------------------------------------- > SF.Net email is sponsored by: Discover Easy Linux Migration Strategies > from IBM. Find simple to follow Roadmaps, straightforward articles, > informative Webcasts and more! Get everything you need to get up to > speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id492&op=ick > _______________________________________________ > ivtv-devel mailing list > ivtv-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ivtv-devel ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_idt77&alloc_id492&op=click _______________________________________________ ivtv-devel mailing list ivtv-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ivtv-devel
