vajpegdec: RGB images decoding with iHD
There are a couple issues decoding JPEGs with RGB colorspace, though it's possible with iHD, but there are a couple issues:
- The used driver should have this PR: https://github.com/intel/media-driver/pull/1428 to announce that RGBP fourcc is supported by jpeg decoder's surface.
- There's potentially a bug
glimagesink
which is unable to handle RBGP dmabufs, even when it's in its caps template - We have a bug at mapping the RGBP buffers, there are some offset magic that we aren't doing correctly, but MediaSDK looks to do the right thing.
cc: @He_Junyan