I have been playing around with this a bit lately. I'm running in x86-64 mode, but the behavior may be similar. Also, I'm using the SVN from last night, 7996.<br><br>- With OpenGL Sync 'ON', I get stuttering whenever XvMC is enabled. The Standard decoder works fine with OpenGL Sync, but not XvMC.
<br><br>- With OpenGL Sync 'OFF', and XvMC 'ON'; 1080i playback works great. No stuttering at all.<br><br>- With OpenGL Sync 'OFF' and XvMC 'ON'; 720p playback is great, until the OSD comes up. Then, my audio/video stutters until a second or two after the OSD goes away.
<br><br><br><div><span class="gmail_quote">On 11/23/05, <b class="gmail_sendername">Chris Trown</b> <<a href="mailto:ctrown@safe-mail.net" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
ctrown@safe-mail.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;"><br> And combing, for that matter.<br><br> I posted yesterday asking some questions. I looked into the
<br>suggestions, but I don't think they apply. I didn't supply enough info.<br> So, here we go. As much detail as I know. Hopefully, somebody can<br>point me in the right direction. I'm a bit at a loss as to where to go
<br>next.<br><br> The system is a 3.06 GHz P4 running Fedora Core 3. The video Card<br>is a NVidia 5200FX. For capture, all I have is a HD3000. I've checked<br>that DMA is working on all the drives. I built mythtv from stable
<br>source, 0.18.1. I used the following configure options:<br><br>--enable-xvmc --enable-opengl-vsync --enable-dvb<br>--dvb-path=/lib/modules/2.6.12-1.1381_FC3smp/build/include<br>--disable-firewire --disable-joystick --disable-ivtv --enable-proc-opt
<br>--disable-xvmc-vld --enable-opengl-vsync<br><br> I'm getting stuttering and combing when playing HD. The CPU is<br>maxing out at 99% when playing. The clips I am testing with are<br>1080i(CSI). I've tried using XvMC with BOB Deinterlacing filter. I've
<br>also tried using libmpeg2 with the kernel and linear blend filter.<br>Nothing seems to help and the CPU always goes through the roof.<br><br> Here is the output from "mythfrontend -v playback". I have "Use
<br>XvMC for playback" checked and bobdeint filter selected.<br><br>2005-11-22 21:46:49.885 New DB connection, total: 1<br>Total desktop width=1280, height=720, numscreens=1<br>2005-11-22 21:46:49.891 Using screen 0, 1280x720 at 0,0
<br>2005-11-22 21:46:49.895 mythfrontend version: 0.18.1.20050510-1<br><a href="http://www.mythtv.org" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">www.mythtv.org</a><br>2005-11-22 21:46:49.896 Enabled verbose msgs : important general playback
<br>2005-11-22 21:46:50.016
max_width: 1280 max_height: 720<br>2005-11-22 21:46:50.066 Switching to square mode (blue)<br>2005-11-22 21:46:50.630 Joystick disabled.<br>2005-11-22 21:46:50.688 Registering Internal as a media playback plugin.<br>2005-11-22 21:46:
50.976 Connecting to backend server: localhost:6543<br>(try 1 of 5)<br>2005-11-22 21:46:50.986 Using protocol version 15<br>2005-11-22 21:46:50.997 Starting media monitor.<br>2005-11-22 21:47:10.304 All Programs<br>2005-11-22 21:47:
12.199 detectInterlace(Detect Scan, Detect Scan, 29.97,<br>1088) ->Interlaced Scan<br>2005-11-22 21:47:12.199 Interlaced: Interlaced Scan video_height: 1088<br> fps: 29.97<br>2005-11-22 21:47:12.200 Estimated bitrate = 0
<br>2005-11-22 21:47:12.431 Image size. dispxoff 0, dispyoff: 0, dispwoff:<br>0, disphoff: 0<br>2005-11-22 21:47:12.431 Image size. imgx 0, imgy: 0, imgw: 1920, imgh: 1080<br>2005-11-22 21:47:12.435 waiting for prebuffer...
<br>2005-11-22 21:47:12.571 prebuffer wait timed out..<br>2005-11-22 21:47:12.571 waiting for prebuffer...<br>2005-11-22 21:47:12.719 prebuffer wait timed out..<br>2005-11-22 21:47:12.719 waiting for prebuffer...<br>2005-11-22 21:47:
13.155 New DB connection, total: 2<br>2005-11-22 21:47:13.217 detectInterlace(Detect Scan, Detect Scan, 29.97,<br>1088) ->Interlaced Scan<br>2005-11-22 21:47:13.217 Interlaced: Interlaced Scan video_height: 1088<br> fps:
29.97<br>2005-11-22 21:47:13.288 Estimated bitrate = 0<br>2005-11-22 21:47:13.296 Opening audio device '/dev/dsp'.<br>2005-11-22 21:47:13.297 Opening OSS audio device '/dev/dsp'.<br>2005-11-22 21:47:13.307 Over/underscan. V: 0, H: 0, XOff: 0, YOff: 0
<br>2005-11-22 21:47:13.316 Using XV port 240<br>2005-11-22 21:47:13.321 Image size. dispxoff 0, dispyoff: 0, dispwoff:<br>1280, disphoff: 720<br>2005-11-22 21:47:13.321 Image size. imgx 0, imgy: 0, imgw: 1920, imgh: 1080
<br>2005-11-22 21:47:13.931 Changing from None to WatchingPreRecorded<br>2005-11-22 21:47:13.933 Using deinterlace method bobdeint<br>2005-11-22 21:47:13.934 Using realtime priority.<br>2005-11-22 21:47:14.035 nVidiaVideoSync: VBlank ioctl did not work,
<br>unimplemented in this driver?<br>2005-11-22 21:47:14.035 DRMVideoSync: Could not open device<br>/dev/dri/card0, No such file or directory<br>2005-11-22 21:47:14.036 Set video sync frame interval to 33366<br>2005-11-22 21:47:
14.036 Using audio as timebase<br>2005-11-22 21:47:14.036 Video timing method: RTC<br>2005-11-22 21:47:14.036 Refresh rate: 16882, frame interval: 33366<br>2005-11-22 21:47:14.036 waiting for prebuffer...<br>2005-11-22 21:47:
14.172 prebuffer wait timed out..<br>2005-11-22 21:47:14.172 waiting for prebuffer...<br>2005-11-22 21:47:14.857 waiting for prebuffer...<br>2005-11-22 21:47:14.992 prebuffer wait timed out..<br>2005-11-22 21:47:15.063 waiting for prebuffer...
<br>2005-11-22 21:47:15.199 prebuffer wait timed out..<br>2005-11-22 21:47:15.270 waiting for prebuffer...<br>2005-11-22 21:47:15.406 prebuffer wait timed out..<br>2005-11-22 21:47:15.477 waiting for prebuffer...<br>2005-11-22 21:47:
15.612 prebuffer wait timed out..<br>2005-11-22 21:47:15.683 waiting for prebuffer...<br>2005-11-22 21:47:15.819 prebuffer wait timed out..<br>2005-11-22 21:47:15.819 waiting for prebuffer...<br>2005-11-22 21:47:15.953 prebuffer wait timed out..
<br>2005-11-22 21:47:15.954 waiting for prebuffer...<br>2005-11-22 21:47:17.801 prebuffering pause<br>2005-11-22 21:47:17.802 waiting for prebuffer...<br>2005-11-22 21:47:17.937 prebuffer wait timed out..<br>2005-11-22 21:47:
17.937 waiting for prebuffer...<br>'video_output' mean = '44733.67', std. dev. = '122733.32', fps = '22.35'<br>'video_output' mean = '33365.88', std. dev. = '1089.85', fps = '29.97'<br>'video_output' mean = '33357.06', std. dev. = '
2142.64', fps = '29.98'<br>'video_output' mean = '33344.99', std. dev. = '723.52', fps = '29.99'<br>'video_output' mean = '33347.45', std. dev. = '1410.13', fps = '29.99'<br>2005-11-22 21:47:34.562 Changing from WatchingPreRecorded to None
<br>2005-11-22 21:47:34.569 Changing from None to None<br>2005-11-22 21:47:35.146 detectInterlace(Detect Scan, Detect Scan, 29.97,<br>1088) ->Interlaced Scan<br>2005-11-22 21:47:35.146 Interlaced: Interlaced Scan video_height: 1088
<br> fps: 29.97<br>2005-11-22 21:47:35.146 Estimated bitrate = 0<br>2005-11-22 21:47:35.377 Image size. dispxoff 0, dispyoff: 0, dispwoff:<br>0, disphoff: 0<br>2005-11-22 21:47:35.378 Image size. imgx 0, imgy: 0, imgw: 1920, imgh: 1080
<br>2005-11-22 21:47:35.381 waiting for prebuffer...<br>2005-11-22 21:47:35.516 prebuffer wait timed out..<br>2005-11-22 21:47:35.517 waiting for prebuffer...<br>2005-11-22 21:47:35.652 prebuffer wait timed out..<br><br>
<br>
Can anybody point me in the right direction? I don't think it's<br>hard drive issues, as the CPU is pegged. It can't keep up.<br><br> Thanks!!!<br><br>Chris...<br><br>--<br>"Those who would give up essential liberty to purchase a little
<br>temporary safety deserve neither liberty nor safety" -- Benjamin<br>Franklin<br>_______________________________________________<br>mythtv-users mailing list<br><a href="mailto:mythtv-users@mythtv.org" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
mythtv-users@mythtv.org
</a><br><a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</a><br></blockquote>
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