[Mesa-dev] 10bit HEVC decoding for RadeonSI v2

[Marek Olšák]

On Sun, Mar 19, 2017 at 2:49 PM, Christian König
<deathsimple at vodafone.de> wrote:
> Hi Peter,
>
> Adding Michel and Marek for the Mesa interop side and Harry for the display
> side.
>
> How do you want us to display the decoded surfaces?
>
> Well to make a long story short: I don't have the slightest idea. Ideally we
> would of the same handling as Intel so that you guys don't have anything
> vendor dependent in your code.
>
> The first step would be to get the VA-API DRM extension to work with EGL. So
> that Kodi is able to export the YUV surfaces and import parts of them as
> separate R8/R16 or R8G8/R16G16 surfaces, right?
>
> What EGL/GL extension do you guys use to import the surfaces? Marek is that
> stuff fully supported, e.g. do we also handle the offsets correctly? I've
> added the backend code for this while doing VDPAU interop, but the EGL/GL
> frontend code needs to handle it gracefully as well.

Mesa/EGL imports an FD with an offset, but it always exports an FD
with offset=0 (the driver offset is ignored). It also always returns
num_planes = 1 on export, is that bad?

Marek