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lavu: add new D3D11 pixfmt and hwcontext

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To be used with the new d3d11 hwaccel decode API.

With the new hwaccel API, we don't want surfaces to depend on the
decoder (other than the required dimension and format). The old D3D11VA
pixfmt uses ID3D11VideoDecoderOutputView pointers, which include the
decoder configuration, and thus is incompatible with the new hwaccel
API. This patch introduces AV_PIX_FMT_D3D11, which uses ID3D11Texture2D
and an index. It's simpler and compatible with the new hwaccel API.

The introduced hwcontext supports only the new pixfmt.

Frame upload code untested.

Significantly based on work by Steve Lhomme <robux4@gmail.com>, but with
heavy changes/rewrites.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
wm4 2017-06-06 18:51:07 +02:00 • committed by Diego Biurrun
parent ed434be106
commit fff90422d1
10 changed files with 681 additions and 3 deletions
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@ -13,6 +13,9 @@ libavutil: 2017-03-23
API changes, most recent first:
2017-xx-xx - xxxxxxx - lavu 56.2.0 - hwcontext.h
Add AV_HWDEVICE_TYPE_D3D11VA and AV_PIX_FMT_D3D11.
2017-04-30 - xxxxxxx - lavu 56.1.1 - hwcontext.h
av_hwframe_ctx_create_derived() now takes some AV_HWFRAME_MAP_* combination
as its flags argument (which was previously unused).