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Libva is an implementation for VA-API (Video Acceleration API)

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We really don't build the docs in CI. Due to this a number of issues have crept in. --- There is a bit of a caveat here - as-is the...

To chroma subsampling completely, it is required to set mono_chrome. See https://aomediacodec.github.io/av1-spec/#color-config-semantics In fact, [VADecPictureParameterBufferAV1](https://github.com/intel/libva/blob/97cbc87c94351c62a47d87e776488a9317ad398b/va/va_dec_av1.h#L281) has mono_chrome variable, but VAEncSequenceParameterBufferAV1 doesn't have. It is necessary to add mono_chrome to VAEncSequenceParameterBufferAV1.

Allows for consistent coding experience across editors. Signed-off-by: Emil Velikov

the case is chrome out of process decode case, after this patch [4d4c5f06519fe4c40d6fe1b2ccff812ff3b3b402](https://github.com/intel/libva/commit/4d4c5f06519fe4c40d6fe1b2ccff812ff3b3b402) it will break the initialization process, suppose it is because the check in drmGetNodeTypeFromFd is strict than...

This PR fixes the existing `Wmissing-declarations` and makes it an explicit `Werror=missing...` so we don't get new instances. About the changes themselves: - some (should be) internal functions are annotated...

As per the contributing documentation DCO/SoB is required. Looking at the existing Github Actions, nearly all of them are based on node12, which is deprecated and will be removed shortly....

In the struct `VAConfigAttribValEncHEVCBlockSizes` defined in [here](https://github.com/intel/libva/blob/master/va/va_enc_hevc.h#L193), the min/max fields for `max_transform_hierarchy_depth_inter` and `max_transform_hierarchy_depth_intra` are 2 bits wide, but from the HEVC codec standard, both those values: `...shall be in...

Been fighting an unrelated issue for weeks with brave & hwdec not working but as a side effect of trying to get to the bottom of that one I noticed...