[mythtv-users] Trying to get XVMC to work.

[Mitch Gore]

On Mon, Apr 21, 2008 at 6:20 PM, stuart <stuart at xnet.com> wrote:

>
> Hi...
>
> I'm running mythtv 21 and can not get XVMC to work.
>
> If I run the "slim" profile, I can watch live NTSC, ATSC 720p, and ATSC
> 1080i.  But the 1080i stutters (pauses about 1/4 a second for ever
> second).  So I am trying to invoke hardware decoding on a Nvidia 6000
> card.  But, I am sure I am doing something wrong as trying to watch a
> live 1080i pegs the processor w/the mythfrontend taking about 92% of the
> processing power.  BTW, the screen goes black and I have to kill the
> front end through a telnet session.  To envoke XVNC I switched to the
> "cpu--" profile.
>
> As I have not been able to find an example of a mythfrontend log where
> XVMC was properly launched, I can only guess at what is going on.  Below
> I cut and pasted my mythfrontend log during the start up of a 1080i live
> TV session.  Can anyone see a problem (yes, I see the sound problem, but
> this configuration was working while using the "slim" profile.)
>
> --------------------------------------------------------------------
> 2008-04-20 11:46:11.803 ~OpenGLVideoSync() -- begin
> 2008-04-20 11:46:11.803 ~OpenGLVideoSync() -- middle
> 2008-04-20 11:46:11.804 ~OpenGLVideoSync() -- end
> 2008-04-20 11:46:12.003 Using protocol version 40
> 2008-04-20 11:46:19.812
> RingBuf(/space/recordings/2051_20080420114612.mpg): Invalid file (fd -1)
> when opening '/space/recordings/2051_20080420114612.mpg'.
> 2008-04-20 11:46:19.828 NVP: Disabling Audio, params(-1,2,44100)
> 2008-04-20 11:46:19.839 VideoOutputXv: Desired video renderer 'ivtv' not
> available.
>                         codec 'None' makes 'xv-blit,xshm,xlib,'
> available, using 'xv-blit' instead.
> 2008-04-20 11:46:19.842 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video
> Texture'
> 2008-04-20 11:46:19.907 OSD Theme Dimensions W: 640 H: 480
> 2008-04-20 11:46:20.398 FilterManager: failed to load filter 'none', no
> such filter exists
> 2008-04-20 11:46:20.398 Couldn't load deinterlace filter none
> 2008-04-20 11:46:20.399 Realtime priority would require SUID as root.
> 2008-04-20 11:46:20.496 OpenGLVideoSync()
> 2008-04-20 11:46:20.536 Video timing method: SGI OpenGL
> 2008-04-20 11:46:20.573 VideoOutputXv: XvMC Adaptor Name: 'NV17 Video
> Texture'
> 2008-04-20 11:46:20.829 VideoOutputXv: ProcessFrameXvMC: Tried to reuse
> frame but failed
> 2008-04-20 11:46:20.829 VideoOutputXv: ProcessFrameXvMC: Called without
> frame
> 2008-04-20 11:46:20.837 AFD: Opened codec 0x993a290, id(MPEG2VIDEO_XVMC)
> type(Video)
> 2008-04-20 11:46:20.838 AFD: codec AC3 has 6 channels
> No accelerated IMDCT transform found
> 2008-04-20 11:46:20.839 AFD: Opened codec 0x99ac190, id(AC3) type(Audio)
> 2008-04-20 11:46:20.843 Opening audio device 'spdif'. ch 2(2) sr 48000
> 2008-04-20 11:46:20.843 Opening ALSA audio device 'iec958:{ AES0 0x02 }'.
> ALSA lib control.c:909:(snd_ctl_open_noupdate) Invalid CTL /dev/mixer
> 2008-04-20 11:46:20.846 AudioOutput Warning: Mixer attach error -2: No
> such file or directory
>                         Check Mixer Name in Setup: '/dev/mixer'
> 2008-04-20 11:46:20.847 NVP: Enabling Audio
> 2008-04-20 11:46:20.849 Opening audio device 'spdif'. ch 2(2) sr 48000
> 2008-04-20 11:46:20.849 Opening ALSA audio device 'iec958:{ AES0 0x02 }'.
> ALSA lib control.c:909:(snd_ctl_open_noupdate) Invalid CTL /dev/mixer
> 2008-04-20 11:46:20.852 AudioOutput Warning: Mixer attach error -2: No
> such file or directory
>                         Check Mixer Name in Setup: '/dev/mixer'
> 2008-04-20 11:46:20.864 XvMC: picture structure FRAME
> --------------------------------------------------------------------
>
> ...that's it, now the CPU is running the mythfrontend about 92% of the
> time.  The other 8% are split between the X server and the mythbackend.
>
> ...thanks for any help
>
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>



Did you config the XvMCConfig file?

[myth at mythtv ~]$ cat /etc/X11/XvMCConfig
libXvMCNVIDIA_dynamic.so.1
[myth at mythtv ~]$


Mitchell
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