Account for chroma subsampling when allocating cbi buffers (!1557) · Merge requests · VideoLAN / dav1d

Henrik Gramner requested to merge gramner/dav1d:cbi_alloc_subsampling into master Jul 18, 2023

Decoding Chimera 1080p 8bpc with --threads 16 --framedelay 4, before and after:

 Type                    Allocs    Reuses    Share    Peak size
---------------------------------------------------------------------
 Block data                   8         0    19.2%     21 012 480
---------------------------------------------------------------------
                           9101     49096             109 569 256

 Type                    Allocs    Reuses    Share    Peak size
---------------------------------------------------------------------
 Block data                   8         0    17.9%     19 353 600
---------------------------------------------------------------------
                           9101     49096             107 910 376

Account for chroma subsampling when allocating cbi buffers

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