Intel, h264 and XvMC

Yan Seiner yan at
Sun Apr 4 13:07:07 PDT 2010

Terry Barnaby wrote:
> On 04/04/10 05:23, Nikos Chantziaras wrote:
>> On 04/04/2010 06:30 AM, Yan Seiner wrote:
>>> I'm trying to understand if Intel XvMC can be used with h264 material.
>>> If not, is there any way to use Intel hardware acceleration with h264
>>> source?
>> VA-API does h264 bitstream decoding on the GPU, not XvMC. XvMC is only
>> for motion compensation (which is what "MC" stands for.)
> There are extensions to XvMC however, for Via and other chipsets that
> allow at least MPEG2 streams to be sent to the GPU for higher level 
> hardware decode. XvMC isn't really suited to this though, hence the 
> newer schemes.
> Actually Intel developers, is there any news of providing hardware 
> H264/MPEG2
> decoding via an API for Linux on the G45 graphics chipset ?

I've heard unsubstantiated rumours of possible VDPAU support..  That 
would be sweet!  It would make intel chipsets competitive with nvidia 
ion for video playback.

Any truth to those rumours?



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