It seemed that we do not have a good way to prevent readback in D3D11TextureIMFSampleImage::GetAsSourceSurface(). Then it seems better to reduce the GetAsSourceSurface() call for now.
Bug 1902271 Comment 1 Edit History
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It seemed that we do not have a good way to prevent readback in D3D11TextureIMFSampleImage::GetAsSourceSurface(). Then it seems better to reduce the GetAsSourceSurface() call for now like Bug 1889275.