[mythtv-users] Playback of Transcoded (MPEG4) file on Epia ME6000

Neale Swinnerton mythtv-users.spam at isismanor.com
Fri Apr 22 11:04:55 UTC 2005


Hi,

I've got a Epia ME6000 working well as a Myth frontend. I've got the
XvMC playback so that watching Live TV or recordings is great (I've got
a backend with 2 x Hauppauge DVB-T cards).

The problem I have is that if I transcode a recording to MPEG4 then I
can't play it back at more than about 14fps. Obviously the processor is
working harder decoding with a MPEG4, but should I expect an Epia ME6000
to have enough grunt to handle this? I'm currently on CVS from 20/04/05,
but I have the same problem with the 0.18 release.

If I play the .nuv file directly on the machine with mplayer it plays
back fine, so I suspect that it's maybe a config option. I've compiled
both myth and mplayer with C[XX]FLAGS

-march=c3 -Os -fomit-frame-pointer

I've tried all combinations of real-time priority, audio/video as
timebase etc.

So -> Anyone have any experience with getting a ME6000 to playback a
transcoded file?

CPU is maxed out and I get this is the frontend.log

2005-04-22 11:53:26.861 prebuffering pause
2005-04-22 11:53:26.862 waiting for prebuffer... 0
2005-04-22 11:53:27.025 waiting for prebuffer... 1
2005-04-22 11:53:27.205 waiting for prebuffer... 2
2005-04-22 11:53:27.385 waiting for prebuffer... 3
2005-04-22 11:53:27.470 A/V diverged by -3.33995 frames, dropping frame
to keep audio in sync
2005-04-22 11:53:27.471 A/V diverged by -3.4362 frames, dropping frame
to keep audio in sync
2005-04-22 11:53:27.472 A/V diverged by -3.26465 frames, dropping frame
to keep audio in sync
2005-04-22 11:53:27.590 A/V diverged by -3.1004 frames, dropping frame
to keep audio in sync
2005-04-22 11:53:27.591 A/V diverged by -3.00655 frames, dropping frame
to keep audio in sync
'video_output' mean = '75874.29', std. dev. = '183007.25', fps = '13.18'


thanks

Neale.




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