[FFmpeg-devel] [PATCH][7/8] Add VA API accelerated H.264 decoding (take 4)

Michael Niedermayer michaelni
Mon Feb 9 15:32:46 CET 2009

On Mon, Feb 09, 2009 at 11:39:43AM +0100, Gwenole Beauchesne wrote:
> Hi,
> On Fri, 6 Feb 2009, Michael Niedermayer wrote:
>> C. as stephen suggested, outputting decoded surfaces
> I had a look at it when Jean-Michel Pour? asked for it. However, it turns 
> out this could be rather suboptimal. In particular, there are cases where 
> NV12 readback might be supported but not YV12. Sure, it doesn't cost that 
> much to convert both, but it still has some cost.

i dont understand the problem you describe, If the hardware can only make
NV12 available and the user app cannot use that convert is needed anyway
and if a common format is supported that could be used ...
what am i missing?


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The greatest way to live with honor in this world is to be what we pretend
to be. -- Socrates
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