[mythtv] EPIA M10k - XvMC: Very high CPU (even when paused!!)

[Colin Guthrie]

Apologies if this is more a user (or in this case numptie) list
question, but I'm a bit confused by the behaviour I'm noticing from this
and wonder if there is a problem with the OSD display perhaps.

Using the viaXvMC playback and no interlace correction.

Playing recorded TV I get relatively smooth playback, but the CPU is
faily high - around 60-70%. I'm beginning to thing this is more than it
ought to be.

Turning on interlacing and I get pre-buffering pauses and the playback
is jittery.

I thought that even the lower powered EPIA machines should be able to
handle this kind of thing relatively simple.

I think I am using ChromaKey OSD but not sure if it's needed any more(?)


The oddest thing about this tho', is that even when the video is paused,
the machine will take up 40-50% CPU load!! This seems pretty strange to
me. Can anyone think why this is?

I get the following info in the log (-v playback,important,libav,general)

stream: start_time: 72854.927 duration: 7586.681 bitrate=3833 kb/s
2006-12-28 13:32:37.954 AFD: Opened codec 0x896f3a0, id(MPEG2VIDEO)
type(Video)
2006-12-28 13:32:37.954 AFD: Opened codec 0x896f9d0, id(MP3) type(Audio)
2006-12-28 13:32:37.955 AFD: Opened codec 0x8908e10, id(DVB_SUBTITLE)
type(Subtitle)
0: start_time: 6556.979 duration: 682.765
1: start_time: 6556.943 duration: 682.731
2: start_time: 6556.943 duration: 682.801
3: start_time: 6556.943 duration: 682.801
stream: start_time: 72854.927 duration: 7586.681 bitrate=3833 kb/s
2006-12-28 13:32:38.257 AFD: Opened codec 0x899d970,
id(MPEG2VIDEO_XVMC_VLD) type(Video)
2006-12-28 13:32:38.257 AFD: Opened codec 0x899dce0, id(MP3) type(Audio)
2006-12-28 13:32:38.257 AFD: Opened codec 0x899e1c0, id(DVB_SUBTITLE)
type(Subtitle)
2006-12-28 13:32:38.273 Opening OSS audio device '/dev/dsp'.
[mpegts @ 0xb75f3a90]Parser not found for Codec Id: 94211 !
0: start_time: 6556.979 duration: 682.765
1: start_time: 6556.943 duration: 682.731
2: start_time: 6556.943 duration: 682.801
3: start_time: 6556.943 duration: 682.801
stream: start_time: 72854.927 duration: 7586.681 bitrate=3833 kb/s
2006-12-28 13:32:38.826 AFD: Opened codec 0x8901b60, id(MPEG2VIDEO)
type(Video)
2006-12-28 13:32:38.827 AFD: Opened codec 0x884b840, id(MP3) type(Audio)
2006-12-28 13:32:38.827 AFD: Opened codec 0x82d8400, id(DVB_SUBTITLE)
type(Subtitle)
2006-12-28 13:32:39.944 VideoOutputXv: XvMCTex: Init failed
2006-12-28 13:32:39.946 VideoOutputXv: XvMC Adaptor Name: 'XV_SWOV'
2006-12-28 13:32:39.983 NVP: Forcing decode extra audio option on.
                        XvMC playback requires it.



I'm not sure if this means that it is actually using the XVMC_VLD or
not? It certainly seems to try, but then it fall back to standard again?
Not sure if I'm interpreting this correctly tho'?

I also see these errors:
2006-12-28 13:32:40.325 OSDImgCache, Error:
cache_+usr+local+share+mythtv+themes+isthmus+osd-mid.png at 1_1_-1_-1 wrong
cache file size!167936 != 208008
2006-12-28 13:32:40.385 OSDImgCache, Error:
cache_+usr+local+share+mythtv+themes+isthmus+osd-channel-edit.png at 1_1_-1_-1
wrong cache file size!0 != 8


Which could be related? Don't know.

I'm currently trying to see if I can get XvMC working with mplayer but
it would appear to need patching first with openchrome patches...
looking at that now.

Any help/advice appreciated.

Col.



-- 

+------------------------+
|     Colin Guthrie      |
+------------------------+
| myth(at)colin.guthr.ie |
| http://colin.guthr.ie/ |
+------------------------+