[mythtv-users] VDPAU on older pre-G98 8400 GS

Eric Sharkey eric at lisaneric.org
Tue Jan 5 14:49:47 UTC 2010


On Mon, Jan 4, 2010 at 11:09 PM, Frank Merrill <fmerrill1 at gmail.com> wrote:
> If 1920x1080 is what you want, and/or need, then I doubt that a G86
> core is going to do it all that well.

I have some evidence to the contrary.  It's starting to look like a
mythtv issue.  I took the same recording file from the mythtv
directory and instead of playing it with mythfrontend I played it with
mplayer -vo vdpau -fs and it played without stutter.  Even adding
:deint=3 turned on deinterlacing and it still didn't stutter.  But
mythfrontend can't play it smoothly.

The frontend log says:

2010-01-05 08:06:21.361 TV: Attempting to change from None to Watching WatchingP
reRecorded
2010-01-05 08:06:21.433 TV: StartPlayer(0, Watching WatchingPreRecorded, main) -
- begin
2010-01-05 08:06:21.601 AFD: Opened codec 0x8f8c1b0, id(MPEG2VIDEO) type(Video)
2010-01-05 08:06:21.601 AFD: codec AC3 has 2 channels
2010-01-05 08:06:21.601 AFD: Opened codec 0x8f49060, id(AC3) type(Audio)
2010-01-05 08:06:21.603 Opening audio device 'spdif'. ch 2(2) sr 48000
2010-01-05 08:06:21.603 Opening ALSA audio device 'iec958:{ AES0 0x02 }'.
2010-01-05 08:06:21.881 Mixer unable to find control Master 1
2010-01-05 08:06:21.881 mixer unable to find control Master 1
2010-01-05 08:06:21.882 Mixer unable to find control Master 1
2010-01-05 08:06:21.882 mixer unable to find control Master 1
2010-01-05 08:06:21.882 Opening audio device 'spdif'. ch 2(2) sr 48000
2010-01-05 08:06:21.882 Opening ALSA audio device 'iec958:{ AES0 0x02 }'.
2010-01-05 08:06:21.887 Mixer unable to find control Master 1
2010-01-05 08:06:21.887 mixer unable to find control Master 1
2010-01-05 08:06:21.887 Mixer unable to find control Master 1
2010-01-05 08:06:21.887 mixer unable to find control Master 1
2010-01-05 08:06:22.205 OSD Theme Dimensions W: 1280 H: 720
2010-01-05 08:06:23.917 TV: StartPlayer(0, Watching WatchingPreRecorded, main) -
- end ok
2010-01-05 08:06:23.918 TV: Changing from None to Watching WatchingPreRecorded
2010-01-05 08:06:23.918 Realtime priority would require SUID as root.
2010-01-05 08:06:23.919 Video timing method: USleep with busy wait
2010-01-05 08:06:25.612 Failed to enable deinterlacing
2010-01-05 08:06:27.230 WriteAudio: buffer underrun
2010-01-05 08:06:27.233 WriteAudio: buffer underrun
2010-01-05 08:06:27.397 WriteAudio: buffer underrun
2010-01-05 08:06:27.400 WriteAudio: buffer underrun
2010-01-05 08:06:27.402 WriteAudio: buffer underrun
2010-01-05 08:06:27.404 WriteAudio: buffer underrun
2010-01-05 08:06:27.406 WriteAudio: buffer underrun
2010-01-05 08:06:27.429 WriteAudio: buffer underrun
[...]

mplayer says:
MPlayer SVN-r30075 (C) 2000-2009 MPlayer Team
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick

Playing 4134_20091226080000.mpg.
TS file format detected.
VIDEO MPEG2(pid=2752) AUDIO A52(pid=2753) NO SUBS (yet)!  PROGRAM N. 1
VIDEO:  MPEG2  704x480  (aspect 2)  29.970 fps  15000.0 kbps (1875.0 kbyte/s)
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
VDecoder init failed :(
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Unsupported PixelFormat -1
Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
==========================================================================
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
No accelerated IMDCT transform found
AUDIO: 48000 Hz, 2 ch, floatle, 192.0 kbit/6.25% (ratio: 24000->384000)
Selected audio codec: [a52] afm: liba52 (AC3-liba52)
==========================================================================
AO: [alsa] 48000Hz 2ch floatle (4 bytes per sample)
Starting playback...
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
VO: [vdpau] 704x480 => 704x528 Planar YV12  [fs]
demux_mpg: 24000/1001fps progressive NTSC content detected, switching framerate.
demux_mpg: 30000/1001fps NTSC content detected, switching framerate.
demux_mpg: 24000/1001fps progressive NTSC content detected, switching framerate.
demux_mpg: 30000/1001fps NTSC content detected, switching framerate.
demux_mpg: 24000/1001fps progressive NTSC content detected, switching framerate.
demux_mpg: 30000/1001fps NTSC content detected, switching framerate.
[...]

Eric


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