Philipp Zabel authored Feb 12, 2020 and Nicolas Dufresne committed Mar 02, 2020

Some drivers support directly importing DMA buffers in some formats into
external-oes textures only, for example because the hardware contains
native YUV samplers.
Note that in these cases colorimetry can only be passed as hints and
there is no feedback whether the driver supports the required YUV
encoding matrix and quantization range.