feat(encoder): add VK_VALVE_video_encode_rgb_convertion#14
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porkloin wants to merge 2 commits into
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Adds an opt-in RGB-direct encode path via
VK_VALVE_video_encode_rgb_conversion. If a device advertises support for the extension and the caller opts in with `EncodeConfig::with_rgb_input(true), the encoder will take an already RGB formattied input image and functionally skip the conversion step. This has been wired in for H264, HEVC, and AV1.If support isn't detected, it's a no-op.
For now, this extension only has support on AMD cards, but hopefully additional vendors will get support soon. Tested on 9070XT.
Note: this PR is stacked on top of the commit for #12 because it depends on the work there/would be messy to merge without it. Once #12 is in, I'll rebase without the cherry pick.