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| author | Stone Chen <chen.stonechen@gmail.com> | 2024-05-28 15:09:00 -0400 |
|---|---|---|
| committer | Nuo Mi <nuomi2021@gmail.com> | 2024-05-29 21:35:34 +0800 |
| commit | 55e9c758f07de6f40489a2fc5f2b35ab368329f0 (patch) | |
| tree | 0839dee80ac230175eeee38a0c74cceee46aa7ec /libavcodec/x86 | |
| parent | 510494760cde847e4417231f10c9759d0da6cb07 (diff) | |
| download | ffmpeg-55e9c758f07de6f40489a2fc5f2b35ab368329f0.tar.gz | |
libavcode/x86/vvc: change label to vvc_sad_16 to reflect block sizes
According to the VVC specification (section 8.5.1), the maximum width/height of a subblock passed for DMVR SAD is 16. This along with previous constraint requiring width * height >= 128 means that 8x16, 16x8, and 16x16 are the only allowed sizes. This re-labels vvc_sad_16_128 to vvc_sad_16 to reflect this and adds a comment about the block size constraints. There's no functionality change.
Diffstat (limited to 'libavcodec/x86')
| -rw-r--r-- | libavcodec/x86/vvc/vvc_sad.asm | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libavcodec/x86/vvc/vvc_sad.asm b/libavcodec/x86/vvc/vvc_sad.asm index b468d89ac2..982951a370 100644 --- a/libavcodec/x86/vvc/vvc_sad.asm +++ b/libavcodec/x86/vvc/vvc_sad.asm @@ -29,6 +29,7 @@ SECTION_RODATA pw_1: times 2 dw 1 ; DMVR SAD is only calculated on even rows to reduce complexity +; Additionally the only valid sizes are 8x16, 16x8, and 16x16 SECTION .text %macro MIN_MAX_SAD 3 @@ -77,7 +78,7 @@ cglobal vvc_sad, 6, 9, 5, src1, src2, dx, dy, block_w, block_h, off1, off2, row_ vpbroadcastd m4, [pw_1] cmp block_wd, 16 - jge vvc_sad_16_128 + je vvc_sad_16 vvc_sad_8: .loop_height: @@ -100,7 +101,7 @@ cglobal vvc_sad, 6, 9, 5, src1, src2, dx, dy, block_w, block_h, off1, off2, row_ movd eax, xm0 RET - vvc_sad_16_128: + vvc_sad_16: sar block_wd, 4 .loop_height: mov off1q, src1q |