Remove encoder-side limitation for restricted switch frames - #5150
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mabenjak wants to merge 3 commits into
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Remove encoder-side limitation for restricted switch frames#5150mabenjak wants to merge 3 commits into
mabenjak wants to merge 3 commits into
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The function prune_ref_by_selective_ref_frame() returned 1 for all blocks that reference restricted references. This caused WARPMV to be the only prediction mode to be considered for restricted references by the encoder, severely hindering the compression performance of restricted switch frames. Removed this limitation and set display_order_hint to REF_RESTRICTED_DOH to ensure that all now accessible prediction modes are correctly encoded. Added is_restricted checks to av2_get_refresh_frame_flags() because the display_order_hint of restricted references is always >= the current display_order_hint.
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The function prune_ref_by_selective_ref_frame() returned 1 for all blocks that reference restricted references. This caused WARPMV to be the only prediction mode to be considered for restricted references by the encoder, severely hindering the compression performance of restricted switch frames. Removed this limitation and set display_order_hint to REF_RESTRICTED_DOH to ensure that all now accessible prediction modes are correctly encoded. Added is_restricted checks to av2_get_refresh_frame_flags() because the display_order_hint of restricted references is always >= the current display_order_hint.
Fixes #5152