[mythtv-users] Re: OT: nVidia and XvMC?

Sat Oct 15 07:20:52 UTC 2005

Hi, you really haven't said much about your setup outside of your Myth 
hardware so this is probably way of the mark, but I figure it couldn't 
hurt to mention.  Anyway, is that Sempron 64 bit?  And are you running 
FC 3 64 bit as well as the NVidia 64 bit binary driver?  If so, from 
what I can tell on the nvnews.net linux forums, XVMC pretty much doesn't 
work at all with the 64 bit driver.  That said, if the 64 bit scenario 
doesn't come into play for you, then please disregard.  However, it does 
sound eerily similar to what I was chasing for a short while trying to 
get XVMC to work on my Athlon 64, so worth a shot in mentioning.

Mark Linford wrote:

>Ok, I'm about to fold myself into a little ball and start crying ...
>
>To continue my XvMC saga, and to make sure that it wasn't the rpm's, I
>downloaded the latest source from svn and compiled myth, making sure
>the --enable-xvmc was set. After a successful compile and install, I
>fired up mythbackend and mythfrontend again. Unfortunately, besides a
>spiffy-looking new interface, I got the same behaviour as before:
>Without XvMC enabled, myth plays back PVR-150 content perfectly, but
>content from the pcHDTV is choppy and unwatchable (though I
>occasionally get a beautiful still frame from an HDTV show :)  ). With
>XvMC enabled, I get nothing but blank screen from both tuners, and I
>have to kill mythfrontend to exit.
>
>Just for fun, I ran -v playback into a log, and here's what I got (using XvMC):
>
>-------------------------------------------------------------------------------------------
>2005-10-14 21:14:09.689 Using runtime prefix = /usr/local
>2005-10-14 21:14:09.896 New DB connection, total: 1
>2005-10-14 21:14:09.934 Total desktop dim: 1920x1200, with 1 screen[s].
>2005-10-14 21:14:09.936 Using screen 0, 1920x1200 at 0,0
>2005-10-14 21:14:09.939 mythfrontend version: 0.19.20050712-1 www.mythtv.org
>2005-10-14 21:14:09.939 Enabled verbose msgs : important general playback
>2005-10-14 21:14:10.937 max_width: 1920 max_height: 1200
>2005-10-14 21:14:11.091 Total desktop dim: 1920x1200, with 1 screen[s].
>2005-10-14 21:14:11.092 Using screen 0, 1920x1200 at 0,0
>2005-10-14 21:14:11.111 Switching to square mode (MythCenter)
>2005-10-14 21:14:11.916 Joystick disabled.
>2005-10-14 21:14:12.175 Registering Internal as a media playback plugin.
>2005-10-14 21:14:12.472 Registering MythDVD DVD Media Handler as a media handler
>SIP listening on IP Address 192.168.1.50:5060 NAT address 192.168.1.50
>SIP: Cannot register; proxy, username or password not set
>2005-10-14 21:14:14.331 Starting media monitor.
>2005-10-14 21:14:37.168 All Programs
>2005-10-14 21:14:38.806 Connecting to backend server: 192.168.1.50:6543 (try 1 o
>f 5)
>2005-10-14 21:16:00.858 New DB connection, total: 2
>2005-10-14 21:16:01.798 Attempting to change from None to WatchingLiveTV
>2005-10-14 21:16:01.806 Using protocol version 19
>2005-10-14 21:16:02.890 TV::StartRecorder: took 167 ms to start recorder.
>2005-10-14 21:16:02.949 TV::StartRecorder: Set lock timeout to 3000 ms for rec #
>3
>0: start_time: -9223372036854.775 duration: -9223372036854.775
>stream: start_time: -9223372036854.775 duration: -9223372036854.775 bitrate=1152
> kb/s
>2005-10-14 21:16:06.071 AVFD: Stream #0, has id 0x33 codec id MPEG1VIDEO, type V
>ideo at 0x0x9592b80
>2005-10-14 21:16:06.346 XvMC version: 1.0
>2005-10-14 21:16:06.408 XvMCSurfaceTypes::find(w 1920, h 1088, chroma 1, vld 0,
>idct 1, mpeg2, sub-width 0, sub-height 0, disp, p<= 198, 1980 <=p, port, surfNum
>)
>2005-10-14 21:16:06.408 Trying XvMC port 198
>2005-10-14 21:16:06.512 Found a suitable XvMC surface 0
>2005-10-14 21:16:06.512 @ j=1 Looking for flag[s]: XvInputMask
>2005-10-14 21:16:06.512 Adaptor: 0 has flag[s]: XvInputMask XvImageMask
>2005-10-14 21:16:06.512 XvMCSurfaceTypes::find(w 1920, h 1088, chroma 1, vld 0,
>idct 1, mpeg2, sub-width 0, sub-height 0, disp, p<= 198, 1980 <=p, port, surfNum
>)
>2005-10-14 21:16:06.512 Trying XvMC port 198
>2005-10-14 21:16:06.513 Found a suitable XvMC surface 0
>2005-10-14 21:16:06.520 XvMC surface found with IDCT support on port 198
>2005-10-14 21:16:06.675 detectInterlace(Detect Scan, Detect Scan, 29.97, 1088) -
>  
>
>>Interlaced Scan
>>    
>>
>2005-10-14 21:16:06.675 Interlaced: Interlaced Scan  video_height: 1088  fps: 29
>.97
>2005-10-14 21:16:06.675 AVFD: Looking for decoder for MPEG2VIDEO_XVMC
>2005-10-14 21:16:06.675 AVFD: Opened codec 0x96af280, id(MPEG2VIDEO_XVMC) type(V
>ideo)
>2005-10-14 21:16:06.675 Estimated bitrate = 1152
>2005-10-14 21:16:06.675 Resyncing position map. posmapStarted = 0 livetv(1) watc
>hingRec(0)
>2005-10-14 21:16:06.683 Filling position map from 0 to 55
>2005-10-14 21:16:06.691 Position map filled from Encoder to: 44
>2005-10-14 21:16:06.691 SyncPositionMap liveTV, from Encoder: 3 entries
>2005-10-14 21:16:06.691 SyncPositionMap, new totframes: 44, new length: 1, posMa
>p size: 3
>2005-10-14 21:16:06.692 Partial position map found
>2005-10-14 21:16:06.692 AvFormatDecoder: Successfully opened decoder for file: "
>rbuf://192.168.1.50:6543/video/buffer/ringbuf3.mpg". novideo(0)
>2005-10-14 21:16:06.695 VideoOutputXv()
>2005-10-14 21:16:06.703 Over/underscan. V: 0, H: 0, XOff: 0, YOff: 0
>2005-10-14 21:16:06.710 Window pixel dimensions: 1920x1200 Screen pixel dimensio
>ns: 1920x1200
>2005-10-14 21:16:06.710 Estimated display dimensions 524x331 mm. Aspect: 1.58308
>2005-10-14 21:16:06.728 Estimated window dimensions 524x331 mm. Aspect: 1.58308
>2005-10-14 21:16:06.728 XvMC version: 1.0
>2005-10-14 21:16:06.728 @ j=1 Looking for flag[s]: XvInputMask
>2005-10-14 21:16:06.728 Adaptor: 0 has flag[s]: XvInputMask XvImageMask
>2005-10-14 21:16:06.728 XvMCSurfaceTypes::find(w 1920, h 1088, chroma 1, vld 0,
>idct 1, mpeg2, sub-width 0, sub-height 0, disp, p<= 198, 1980 <=p, port, surfNum
>)
>2005-10-14 21:16:06.749 Trying XvMC port 198
>2005-10-14 21:16:06.749 Found a suitable XvMC surface 0
>2005-10-14 21:16:06.749 XvMC surface found with IDCT support on port 198
>X Error: BadMatch (invalid parameter attributes) 8
>  Major opcode:  141
>  Minor opcode:  14
>  Resource id:  0x1f2
>2005-10-14 21:16:06.882 Couldn't get the color key color, and we need it.
>You likely won't get any video.
>2005-10-14 21:16:06.890 Snapping width to avoid scaling: dispwoff 1920, dispxoff
>: 0
>2005-10-14 21:16:06.890 Image size. dispxoff 0, dispyoff: 0, dispwoff: 1920, dis
>phoff: 1200
>2005-10-14 21:16:06.890 Image size. imgx 0, imgy: 0, imgw: 1920, imgh: 1080
>2005-10-14 21:16:06.915 Couldn't find OSD theme: visorosd
>2005-10-14 21:16:07.073 InputChanged()
>2005-10-14 21:16:07.073 VideoOutputXv::DiscardFrames() 1: AAAAAAAA
>2005-10-14 21:16:07.073 VideoOutputXv::DiscardFrames() 2: AAAAAAAA
>2005-10-14 21:16:07.073 VideoOutputXv::DiscardFrames() 3: AAAAAAAA
>2005-10-14 21:16:07.073 VideoOutputXv::DiscardFrames() 4: AAAAAAAA -- done()
>2005-10-14 21:16:07.080 TV::StartPlayer: took 2206 ms to start player.
>2005-10-14 21:16:07.080 Changing from None to WatchingLiveTV
>2005-10-14 21:16:07.091 Realtime priority would require SUID as root.
>2005-10-14 21:16:07.113 detectInterlace(Detect Scan, Interlaced Scan, 29.97, 108
>8) ->Interlaced Scan
>2005-10-14 21:16:07.113 Interlaced: Interlaced Scan  video_height: 1088  fps: 29
>.97
>XvMC: picture structure FRAME
>2005-10-14 21:16:07.362 nVidiaVideoSync: VBlank ioctl did not work, unimplemente
>d in this driver?
>2005-10-14 21:16:07.363 DRMVideoSync: Could not open device /dev/dri/card0, No s
>uch file or directory
>2005-10-14 21:16:07.534 OpenGLVideoSync: GLX extensions: GLX_EXT_visual_info GLX
>_EXT_visual_rating GLX_SGIX_fbconfig GLX_SGIX_pbuffer GLX_SGI_video_sync GLX_SGI
>_swap_control GLX_ARB_multisample GLX_NV_float_buffer GLX_ARB_fbconfig_float GLX
>_ARB_get_proc_address
>2005-10-14 21:16:08.636 Using OpenGLVideoSync
>2005-10-14 21:16:08.638 Using audio as timebase
>2005-10-14 21:16:08.638 Video timing method: SGI OpenGL
>2005-10-14 21:16:08.638 Refresh rate: 16666, frame interval: 33366
>2005-10-14 21:16:10.459 Timed out waiting for free video buffers.
>2005-10-14 21:16:13.675 Timed out waiting for free video buffers.
>2005-10-14 21:16:16.875 Timed out waiting for free video buffers.
>2005-10-14 21:16:20.076 Timed out waiting for free video buffers.
>2005-10-14 21:16:23.276 Timed out waiting for free video buffers.
>2005-10-14 21:16:26.480 Timed out waiting for free video buffers.
>2005-10-14 21:16:29.688 Timed out waiting for free video buffers.
>2005-10-14 21:16:32.889 Timed out waiting for free video buffers.
>2005-10-14 21:16:36.105 Timed out waiting for free video buffers.
>2005-10-14 21:16:39.309 Timed out waiting for free video buffers.
>2005-10-14 21:16:42.509 Timed out waiting for free video buffers.
>2005-10-14 21:16:45.714 Timed out waiting for free video buffers.
>2005-10-14 21:16:48.918 Timed out waiting for free video buffers.
>2005-10-14 21:16:52.134 Timed out waiting for free video buffers.
>2005-10-14 21:16:55.335 Timed out waiting for free video buffers.
>2005-10-14 21:16:58.535 Timed out waiting for free video buffers.
>2005-10-14 21:17:01.751 Timed out waiting for free video buffers.
>2005-10-14 21:17:01.782 Attempting to change from WatchingLiveTV to None
>2005-10-14 21:17:01.783 TV::StopStuff() -- begin
>2005-10-14 21:17:01.788 TV::StopStuff(): stopping ring buffer[s]
>2005-10-14 21:17:01.819 TV::StopStuff(): stopping player[s] (1/2)
>2005-10-14 21:17:01.819 TV::StopStuff(): stopping recorder[s]
>2005-10-14 21:17:02.052 TV::StopStuff(): stopping player[s] (2/2)
>------------------------------------------------------------------------------------------------
>
>So, as far as I can figure out, myth is using XvMC, and isn't
>reporting any problems about it. When I look at my Xorg.0.log, I see
>that all of the XvMC stuff is loading correctly. So, this should be
>working perfectly, but it isn't ...
>
>What am I missing here?
>
>Mark
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