[mythtv-users] Possible to use XvMC with h264?

[R. G. Newbury]

On 04/03/2010 01:03 PM, George Nassas wrote:
> On 2010-04-03, at 12:17 PM, Yan Seiner wrote:
>
>> Before I spend any more time on this, is it even possible?
>
> No. XvMC works with mpeg2 only and, on intel, with non-HD resolutions.
>
> The myth wiki has some further info under the XvMC topic.

Intel XvMC used to work only with mpeg2. The version 2.3 and 2.4 drivers 
did not do more than SD resolution, but the 2.9.1 provides full HD size 
frames:
Output of xvmcinfo run on my X61 laptop:

      info about surface 1:
          max_width=1920
          max_height=1080
          subpicture_max_width=1920
          subpicture_max_height=1080
          chroma_format:
             XVMC_CHROMA_FORMAT_420
          mc_type:
             format                   : MPEG1
             accelaration start from  : MOCOMP
          flags:
             XVMC_INTRA_UNSIGNED

Surface 0 is 16 pixels larger in both directions.
And I have played HD content (from OTA) on the laptop. For test 
purposes, I hooked up my 1920x1080 monitor and it worked perfectly.

The Release notes hinted a h264 capabilities, but you may be correct on 
that point. The xvmcinfo program I use may not properly report whether 
this version does h264. I don't know. It is clear that Intel's coders 
intend to introduce that capability but I have no idea when.


Regards

Geoff


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