Video codecs: Adding AV1 stateless video decoder support to Linux

ROCK 5 Series
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So there is even AV1 decoding capability but no HDMI output capability?

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Different chips embedded in the SoC.

HDMI is currently WiP but likely part of what they are also doing with the Mali CSF

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Is collabora still progressing on rk3588 features?

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There are patches on upstream mailing lists for H264 and HEVC support on RK3588, but not VP9, and while support for the AV1 driver has existed for ages nobody wrote corresponding ffmpeg v4l2_request support (some early work exists, but not finished enough to use).

Patches for current state can be found in https://github.com/chewitt/linux/commits/rockchip-6.17.y but a large number of the patches are still in-flight and it will be at least another couple of kernel cycles before much of it gets merged.

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