Ccso: Split parameter search into sub-functions - #5336
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@yunqingwang1 @urvangjoshi when you get a chance can you please review |
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- Split per-plane ccso parameter search into focused sub-functions. - Introduce CcsoCtx/CcsoCtxCommon to carry per-plane-search state, replacing long function-argument lists. - Replace raw memset/memcpy with av2_zero_array/av2_copy_array, and narrow several of them from the full CCSO_BAND_NUM/ CCSO_CLASS_STATS_ENTRIES range down to the max_band/ max_edge_interval range actually used by the current search iteration. - corrects two places that used the horizontal filter-unit log2 for a vertical quantity (derive_blk_md(), get_sb_reuse_dist() and ccso_compute_class_err). no stats changed
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