video, d3d11: Add RBGA format
This new format is intended to be used by hardware decoders where VUYA is only supported 4:4:4 decoding surface but stream is encoded with GBR color space, HEVC and VP9 GBR streams for example.
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This new format is intended to be used by hardware decoders where VUYA is only supported 4:4:4 decoding surface but stream is encoded with GBR color space, HEVC and VP9 GBR streams for example.