<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Hi Aaron,</DIV>
<DIV><BR>I don't think it is the same problem.</DIV>
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<DIV>I can't understand why your CPU usage would have gone up after JYA's added. As far as I understand JYA just adds VDPAU to the current fixes. If you don't use a VDPAU profile you should be getting performance same as from 0.21 fixes.</DIV>
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<DIV>Are you sure that it is Mythfrontend that is increasing from 10% to 60% on playback? or are you reporting all CPU usage during playback? In which case you really need to look at just mythfrontend when comparing one situation to another. I was reporting just the mythfrontend usage. With VDPAU enabled I have very low CPU usage for mythfrontend - definitely not 40%.</DIV>
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<DIV>I saw your other posts and see that you have come up with some solutions. Looks like it was a bit of a hard fought battle but you have something that works.</DIV>
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<DIV>I am in a similar position - mine now works, I'll carry on to something else.</DIV>
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<DIV>Cheers</DIV>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Aaron Drysdale <Aaron.Drysdale@provencocadmus.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> MythTV in NZ <mythtvnz@lists.linuxnut.co.nz><BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Monday, 11 May, 2009 10:41:57 AM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [mythtvnz] DVB-T HD picture quality VDPAU issue?<BR></FONT><BR>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">I have a similar problem I think. I have a one-box frontend/backend with Ubuntu 8.10 and JYA’s repositories installed – however I’m just running SD on a Nova-S card.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">Playback looks fine, but with non-VDPAU playback profile the CPU usage is up around 50-60%, while before I installed JYA’s repositories I was getting around 10%. This is on a quad core processor, and I’m estimating average CPU usage across all 4 cores. nVidia 8500GT graphics card.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">With a VDPAU playback profile enabled, the CPU usage is still very high (~ 40%), and live TV looks good but “hiccups” every few minutes. That is, it pauses briefly then continues.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">Do you think this is the same problem? If it is, then note I’m on DVB-S not DVB-T.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">Regards</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">Aaron</SPAN></P>
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<P class=MsoNormal><B><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma', 'sans-serif'">From:</SPAN></B><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma', 'sans-serif'"> mythtvnz-bounces@lists.linuxnut.co.nz [mailto:mythtvnz-bounces@lists.linuxnut..co.nz] <B>On Behalf Of </B>Steve V<BR><B>Sent:</B> Saturday, 9 May 2009 21:41<BR><B>To:</B> MythTV in NZ<BR><B>Subject:</B> Re: [mythtvnz] DVB-T HD picture quality VDPAU issue?</SPAN></P></DIV></DIV>
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<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><BR>OK, I finally got back to some testing.<BR><BR>My problem is definitely a playback issue not a reception issue - yay I can stop fooling around with the aerial and cabling.<BR><BR>The playback problem is strange because it affects 720p content more than 1080i content.<BR><BR>Quick recap:</P>
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<P class=MsoNormal>Backend:</P></DIV>
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<P class=MsoNormal>Pentium 4 3Ghz</P></DIV>
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<P class=MsoNormal>NOVA-T 500 tuner card</P></DIV>
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<P class=MsoNormal>Unfortunately no PCIe slot so I can't put in a VDPAU capable card</P></DIV>
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<P class=MsoNormal>Frontend:</P></DIV>
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<P class=MsoNormal>ASUS M3N-HDMI motherboard</P></DIV>
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<P class=MsoNormal>Athlon 6000 (dual core) CPU</P></DIV>
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<P class=MsoNormal>Built in NVIDIA 8300 graphics</P></DIV>
<P class=MsoNormal><BR>Both running Mythbuntu 8.10 with JYA's repositories<BR><BR><BR> Here are the symptoms - on the Frontend.<BR><BR>Non VDPAU playback profile.<BR><BR>No problem with TV1 and TV2 playback in fact a recording that shows pixelation when using VDPAU does not have any pixelation during playback with this profile.<BR>TV1 and TV2 (720p) playback has CPU usage around 62% but sometime over 90%<BR>TV3 (1080i) playback has CPU usage over 100% and stutters<BR><BR>With VDPAU<BR>TV1 and TV2 show pixelation with panning shots and fast motion<BR>TV3 shows fine no pixelation<BR><BR>OK so I have 2 possible solutions:<BR><BR>1 change the settings so that VDPAU works for 720p content - I think the only option I have is to change the deinterlacer. I have tried every deinterlacer and that did not help <BR><BR>2 use a profile that is non VDPAU for 720p and below and VDPAU for above. This is working OK but I would really like to get my CPU usage
down.<BR><BR>So in summary if anyone has any clever ideas for improving VDPAU performance with 720p content i would love to hear it.<BR><BR> </P></DIV></DIV></DIV>
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