A lot comes down to how accurately things sync up. Have you enabled the real time clock as recommended when mplayer starts (if it's not there)? What CPU do you have? You could mail me the output of mplayer & xine if you like which might give some clues as to what is happening.
John > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:ivtv-devel- > [EMAIL PROTECTED] On Behalf Of Graeme Wilford > Sent: 08 October 2005 10:32 > To: Discussion list for development of the IVTV driver > Subject: Re: [ivtv-devel] 350 Cpu usage for Xv playback reduced a lot - > mayhelp video/audio sync > > John, > > This is looking good - I'm definitely seeing a significant drop in X > CPU for some video but not all. It also seems to depend on using > mplayer - > > When playing a 720x576 vob, I see this: > > App 'app CPU' 'X CPU' > mplayer 15% 35% > xine 12% 45% > > When playing a 688x416 XVID, I see this: > > xine 14% 25% > mplayer 10% 5% > > Here are the options I'm using: > % mplayer -fs -v -monitoraspect 16:9 > % xine -f --verbose -r 4:3 > > Playing a 480 avi gave me very low X CPU usage with mplayer (1-2%) but > about 14% under xine. Both apps are using Xv, xdriver 0.10.6 and svn > 2757 for these tests. > > All of this made me wonder about the recommended configuration for use > of Xv. John (or others), do you have any such recommendations or > should we just figure it out using trial-and-error? > > Cheers, > Wilf. > > On 07/10/05, John Harvey <[EMAIL PROTECTED]> wrote: > > > > > > > > I have just submitted a patch for the YUV playback code which > significantly > > reduces the cpu used during playback using the Xv code. > > > > Now the CPU usage for X has dropped from about 30-35% to about 0.5 - 2%. > So > > I can now play back stuff with mplayer burning ~13%cpu and I have > between 80 > > & 85% idle. > > > > Mplayer drops much fewer frames now (1 or 2 at start up) and the audio & > > video should be more in sync than in the past. > > > > > > > > I have now finished all the planned changes for the Xv/yuv code before > 0.4 > > is branched other than fixing issues that anyone finds with the last few > > changes. > > > > Thanks > > > > > > > > John > > _______________________________________________ > > ivtv-devel mailing list > > [email protected] > > http://ivtvdriver.org/mailman/listinfo/ivtv-devel > > > > > > > -- > [EMAIL PROTECTED] | MythTV blog: http://mezzanines.blogspot.com/ _______________________________________________ ivtv-devel mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-devel
