35eb12e2fd
Application should send the full DPB state in each pic to keep
the references alive. Ideally the surfaces would be evicted immediately,
but unfortunately this breaks some applications. Add evict flag and
only evict surfaces if not present in reference frames array for two
consecutive frames.
DPB buffers are not destroyed upon eviction, but instead they are kept
around and reused next time a new surface is added to DPB.
Fixes: cc14724d73 ("frontends/va: Implement DPB management for H264/5 encode")
Reviewed-by: Ruijing Dong <ruijing.dong@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31741>
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