[mythtv-users] Playback profiles and xvmc

[John Finlay]

Tom Dexter wrote:
> On Fri, Apr 4, 2008 at 5:36 AM, John Finlay <finlay at moeraki.com> wrote:
>   
>> I was trying out some playback profiles to see what worked best and I
>>  decided to try and create a new profile. I accidentally delected the
>>  CPU-- profile and then created a new simple profile using xvmc. Now when
>>  I try to placyback using xvmc the FE crashes/exits and I see a message
>>  in the log:
>>
>>  2008-04-04 01:27:23.048 AFD Error: Could not open codec 0xa2985d50,
>>  id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>>  2008-04-04 01:27:23.057 NVP: Disabling Audio, params(-1,-1,-1)
>>
>>  I was able to use the CPU-- profile just fine and xvmc was working OK.
>>
>>  How do I get the CPU-- profile back? And what's the problem with the
>>  xvmc playback.
>>
>>  I'm using Mythbuntu with myth 0.21 from the backports. I have an nvidia
>>  7 series integrated graphics on the MB (GeForce 7050 PV / NVIDIA nForce
>>  630a) driving 1080p tv at 1920x1080.
>>
>>  The XVMC messages (in case they are of use) are:
>>
>>  2008-04-03 23:37:41.669 AFD: Opened codec 0xae4d8d30,
>>  id(MPEG2VIDEO_XVMC) type(Video)
>>  2008-04-03 23:40:07.848 AFD: Opened codec 0x84ff7c0, id(MPEG2VIDEO_XVMC)
>>  type(Video)
>>  2008-04-03 23:58:23.168 AFD: Opened codec 0x8526b70, id(MPEG2VIDEO_XVMC)
>>  type(Video)
>>  2008-04-04 00:47:57.601 AFD: Opened codec 0x846f210, id(MPEG2VIDEO_XVMC)
>>  type(Video)
>>  2008-04-04 00:53:53.759 AFD: Opened codec 0x85c23f0, id(MPEG2VIDEO_XVMC)
>>  type(Video)
>>  2008-04-04 01:27:23.048 AFD Error: Could not open codec 0xa2985d50,
>>  id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>>  2008-04-04 01:30:33.873 AFD Error: Could not open codec 0x8326f70,
>>  id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>>  2008-04-04 01:32:40.218 AFD Error: Could not open codec 0x833e190,
>>  id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>>  2008-04-04 01:36:51.921 AFD Error: Could not open codec 0x8355ad0,
>>  id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>>  2008-04-04 01:38:59.799 AFD Error: Could not open codec 0x82fdab0,
>>  id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>>  2008-04-04 01:45:17.614 AFD Error: Could not open codec 0xa2a10370,
>>  id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>>  2008-04-04 01:49:31.363 AFD Error: Could not open codec 0x82f5110,
>>  id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>>  2008-04-04 02:04:54.725 AFD Error: Could not open codec 0x82d2e30,
>>  id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>>  2008-04-04 02:28:53.685 AFD Error: Could not open codec 0x8343fe0,
>>  id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>>
>>  I tried restarting X and rebooting but no luck.
>>
>>  Thanks
>>
>>  John
>>
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>>     
>
> I don't know if you ever found a resolution for this but I ran into a
> similar problem trying to test XvMC.
>
> I don't actually use XvMC but I was curious as to how it would perform
> in 0.21.  I'm using my own custom profile group with just one profile
> (usually libmpeg2, xv-blit, and bobx2).  Every time I tried to switch
> it to XvMC, not only would I get the error you got:
>
> 2008-04-13 17:28:30.117 AFD Error: Could not open codec 0xb3519e60,
> id(MPEG2VIDEO_XVMC) type(Video) aborting. reason -1
>
> ...but it would actually crash the frontend.  I read a post on an
> ubuntu forum regarding a similar issue that XvMC can't use more than
> one CPU and I had mine set to two (next to the decoder entry in the
> profile).  That was it...as long as I had that set to one XvMC worked
> fine.  Two CPUs works fine for libmpeg2 and Standard (ffmpeg).
>   
Thanks Tom, that is the problem - I had been trying out all the options 
and fiddling the number of cpus was one that I touched. I tried again to 
recreate the problem but wasn't able to probably because I wasn't 
changing the cpus setting. Just tried it now and the FE crashed. I 
ultimately gave up on xvmc because it failed to show some recorded HD 
programs (all CBS).

Thanks

John