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authorMartin Storsjö <martin@martin.st>2024-03-22 13:41:45 +0200
committerMartin Storsjö <martin@martin.st>2024-03-26 09:05:55 +0200
commitf872b1971401817356708b8863dff4ee6bd02600 (patch)
treee278d3fe7919ee48a3505ae26118215f8be9140f /doc/filters.texi
parentd21b9a041136c6d855a56e5ae353c98118b95ea8 (diff)
downloadffmpeg-f872b1971401817356708b8863dff4ee6bd02600.tar.gz
aarch64: hevc: Produce plain neon versions of qpel_bi_hv
As the plain neon qpel_h functions process two rows at a time, we need to allocate storage for h+8 rows instead of h+7. By allocating storage for h+8 rows, incrementing the stack pointer won't end up at the right spot in the end. Store the intended final stack pointer value in a register x14 which we store on the stack. AWS Graviton 3: put_hevc_qpel_bi_hv4_8_c: 385.7 put_hevc_qpel_bi_hv4_8_neon: 131.0 put_hevc_qpel_bi_hv4_8_i8mm: 92.2 put_hevc_qpel_bi_hv6_8_c: 701.0 put_hevc_qpel_bi_hv6_8_neon: 239.5 put_hevc_qpel_bi_hv6_8_i8mm: 191.0 put_hevc_qpel_bi_hv8_8_c: 1162.0 put_hevc_qpel_bi_hv8_8_neon: 228.0 put_hevc_qpel_bi_hv8_8_i8mm: 225.2 put_hevc_qpel_bi_hv12_8_c: 2305.0 put_hevc_qpel_bi_hv12_8_neon: 558.0 put_hevc_qpel_bi_hv12_8_i8mm: 483.2 put_hevc_qpel_bi_hv16_8_c: 3965.2 put_hevc_qpel_bi_hv16_8_neon: 732.7 put_hevc_qpel_bi_hv16_8_i8mm: 656.5 put_hevc_qpel_bi_hv24_8_c: 8709.7 put_hevc_qpel_bi_hv24_8_neon: 1555.2 put_hevc_qpel_bi_hv24_8_i8mm: 1448.7 put_hevc_qpel_bi_hv32_8_c: 14818.0 put_hevc_qpel_bi_hv32_8_neon: 2763.7 put_hevc_qpel_bi_hv32_8_i8mm: 2468.0 put_hevc_qpel_bi_hv48_8_c: 32855.5 put_hevc_qpel_bi_hv48_8_neon: 6107.2 put_hevc_qpel_bi_hv48_8_i8mm: 5452.7 put_hevc_qpel_bi_hv64_8_c: 57591.5 put_hevc_qpel_bi_hv64_8_neon: 10660.2 put_hevc_qpel_bi_hv64_8_i8mm: 9580.0 Signed-off-by: Martin Storsjö <martin@martin.st>
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