void VideoProcessorSetStreamHDRMetaData([in] ID3D11VideoProcessor *processor, [in] UINT stream_index, [in] DXGI_HDR_METADATA_TYPE type, [in] UINT size, [in] const void *meta_data)
void VideoProcessorGetOutputHDRMetaData([in] ID3D11VideoProcessor *processor, [out] DXGI_HDR_METADATA_TYPE *type, [in] UINT size, [out] void *meta_data)
void VideoProcessorSetOutputHDRMetaData([in] ID3D11VideoProcessor *processor, [in] DXGI_HDR_METADATA_TYPE type, [in] UINT size, [in] const void *meta_data)
void VideoProcessorGetStreamHDRMetaData([in] ID3D11VideoProcessor *processor, [in] UINT stream_index, [out] DXGI_HDR_METADATA_TYPE *type, [in] UINT size, [out] void *meta_data)