On Sat, Dec 20, 2008t 05:59:33AM -0800, Grant wrote: > >> When playing back 1080p video on my Linuxystem, I get numerous "too > >> many video packets inhe buffer" console messages and the the a/v > >> can't maintainync. This happens with both software decoding and > >> Nvidia VDPAU. The following patch fixes it. Canhis be changed by > >> default? > > > > The current value islready 8 MB, buffering 134 MB like your change > > does is insane. > > Also why doou think this causes A-V desync? The only reason why > > 8B buffer (which btw. even for 50 MBit/s video is enough for more > >han one second) is not enough is when you already have A-V desync, > >o in all cases (except broken files) the underlying issue of > > _both_ desyncn "too many video packets in the buffer" > > is too slow PC. > > I'vehared this patch with many people on forums who have reported a >arge performance increase with HD video. If increasing the buffer > increases performance,houldn't it be increased? Doou have proof that it indeed increases performance or avoids A-V desync (note not cases where people just don't noticehe desync, but only cases where A-Vnd c-t stays below 0.2). > If I can find >ower buffer amount that does away with "too many video packets" and >ync issues, would it be considered as a new default if it is >ufficiently low? Not withoutn explanation what exactly it fixes and _why_. Increasinghe buffer size or even making it configurable is probably a good idea for othereasons, but if it has effects on performance (which are not just becauseome frames were dropped and thus error correction causeshe slowdown without the change) this is unexpected and needs to bexplained, and there almost certainly is a way to get this performance improvement without changinghe buffer size. Greetings, Reimar D?ffinger Fromlpha at ps.sakura.ne.jp Sat Dec 20 16:13:01 2008 From:lpha at ps.sakura.ne.jp (alpha) Date: Sun, 21 Dec 2008 00:13:01 +0900 (JST) Subject: WMV9 byPlayer playback problems ? In-Reply-To: <20081213.212601.74731770.alpha@xxxxxxxxxxxxxxx> References: <28f2fcbc0811130937t4cfda9a9l1c5336ab2e9d395b@xxxxxxxxxxxxxx> <20081115.194843.74743235.alpha@xxxxxxxxxxxxxxx> <20081213.212601.74731770.alpha@xxxxxxxxxxxxxxx> Message-ID: <20081221.001301.74703661.alpha@xxxxxxxxxxxxxxx> Hello All. I make wmv9(wmv3) movie file. Andhe file is convert to flv by mencoder. But,he convert file is color shift that grayscale and RGB color. Ihink the problem is wmv9(wmv3) convert option "-v_interlace 1". The option isnable YUV411, may be. The option enable file is colorhift, disable is normal. Whatelated to YUV420 and YUV411? How make YUV420 flv from YUV411 wmv9(wmv3)? Ise option is: mencoder14-5m.avi -oac mp3lame -srate 44100 -ovc lavc -lavcopts vcodec=flv -of lavf -o t14-5m.swf --- Best Regards. Norio Kawanishi. From:lpha <alpha at ps.sakura.ne.jp> Subject: Re: WMV9 byPlayer playback problems ? Date: Sat, 13 Dec 2008 21:26:01 +0900 (JST) > Hello All. > > I convertedo flv from wmv9, by mencoder. > But i have problem of color shift. > Some have found it try. > Can be convertedo normal, and can not converted to normal.
