libavutil/hwcontext_d3d11va: adding more texture information to the D3D11 hwcontext API

Microsoft VideoProcessor requires texture with D3DUSAGE_RENDERTARGET flag as output.
There is no way to allocate array of textures with D3D11_BIND_RENDER_TARGET flag
and .ArraySize > 2 by ID3D11Device_CreateTexture2D due to the Microsoft limitation.
Adding AVD3D11FrameDescriptors array to store array of single textures
instead of texture with multiple slices resolves this.

Signed-off-by: Artem Galin <artem.galin@intel.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/libavutil/hwcontext_d3d11va.h b/libavutil/hwcontext_d3d11va.h
index 9f91e9b1b6..77d2d72f1b 100644
--- a/libavutil/hwcontext_d3d11va.h
+++ b/libavutil/hwcontext_d3d11va.h
@@ -164,6 +164,15 @@ typedef struct AVD3D11VAFramesContext {
      * This field is ignored/invalid if a user-allocated texture is provided.
      */
     UINT MiscFlags;
+
+    /**
+     * In case if texture structure member above is not NULL contains the same texture
+     * pointer for all elements and different indexes into the array texture.
+     * In case if texture structure member above is NULL, all elements contains
+     * pointers to separate non-array textures and 0 indexes.
+     * This field is ignored/invalid if a user-allocated texture is provided.
+    */
+    AVD3D11FrameDescriptor *texture_infos;
 } AVD3D11VAFramesContext;
 
 #endif /* AVUTIL_HWCONTEXT_D3D11VA_H */