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| author | J. Dekker <jdek@itanimul.li> | 2022-05-25 10:55:34 +0200 |
|---|---|---|
| committer | J. Dekker <jdek@itanimul.li> | 2022-05-26 08:10:41 +0200 |
| commit | 3c694967f862dc5e09921438c6cbd191944ac13c (patch) | |
| tree | 4101a902c94a3755e7c457504609257c78574950 /libavcodec | |
| parent | 1cb601ad10313981209a5918fc36a968068fc0ec (diff) | |
| download | ffmpeg-3c694967f862dc5e09921438c6cbd191944ac13c.tar.gz | |
lavc/aarch64: hevc_sao reschedule slightly
Signed-off-by: J. Dekker <jdek@itanimul.li>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/aarch64/hevcdsp_sao_neon.S | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/libavcodec/aarch64/hevcdsp_sao_neon.S b/libavcodec/aarch64/hevcdsp_sao_neon.S index efd8112af4..d4decfde3b 100644 --- a/libavcodec/aarch64/hevcdsp_sao_neon.S +++ b/libavcodec/aarch64/hevcdsp_sao_neon.S @@ -3,7 +3,7 @@ * * AArch64 NEON optimised SAO functions for HEVC decoding * - * Copyright (c) 2020 Josh Dekker <josh@itanimul.li> + * Copyright (c) 2022 J. Dekker <jdek@itanimul.li> * * This file is part of FFmpeg. * @@ -24,6 +24,10 @@ #include "libavutil/aarch64/asm.S" +#define MAX_PB_SIZE 64 +#define AV_INPUT_BUFFER_PADDING_SIZE 64 +#define SAO_STRIDE (2*MAX_PB_SIZE + AV_INPUT_BUFFER_PADDING_SIZE) + // void sao_band_filter(uint8_t *_dst, uint8_t *_src, // ptrdiff_t stride_dst, ptrdiff_t stride_src, // int16_t *sao_offset_val, int sao_left_class, @@ -57,6 +61,7 @@ function ff_hevc_sao_band_filter_8x8_8_neon, export=1 // +-----------------------------------> // i-0 i-1 i-2 i-3 ld1 {v2.8b}, [x1], #8 // dst[x] = av_clip_pixel(src[x] + offset_table[src[x] >> shift]); + subs w8, w8, #8 uxtl v0.8h, v2.8b // load src[x] ushr v2.8h, v0.8h, #3 // >> BIT_DEPTH - 3 shl v1.8h, v2.8h, #1 // low (x2, accessing short) @@ -66,7 +71,7 @@ function ff_hevc_sao_band_filter_8x8_8_neon, export=1 add v1.8h, v0.8h, v2.8h // src[x] + table sqxtun v4.8b, v1.8h // clip + narrow st1 {v4.8b}, [x0], #8 // store - subs w8, w8, #8 // done 8 pixels + // done 8 pixels bne 2b subs w7, w7, #1 // finished line, prep. new add x0, x0, x2 // dst += stride_dst @@ -75,12 +80,11 @@ function ff_hevc_sao_band_filter_8x8_8_neon, export=1 ret endfunc -// ASSUMES STRIDE_SRC = 192 .Lsao_edge_pos: .word 1 // horizontal -.word 192 // vertical -.word 192 + 1 // 45 degree -.word 192 - 1 // 135 degree +.word SAO_STRIDE // vertical +.word SAO_STRIDE + 1 // 45 degree +.word SAO_STRIDE - 1 // 135 degree // ff_hevc_sao_edge_filter_16x16_8_neon(char *dst, char *src, ptrdiff stride_dst, // int16 *sao_offset_val, int eo, int width, int height) @@ -98,7 +102,7 @@ function ff_hevc_sao_edge_filter_16x16_8_neon, export=1 uzp2 v1.16b, v3.16b, v3.16b // sao_offset_val -> upper uzp1 v0.16b, v3.16b, v3.16b // sao_offset_val -> lower movi v2.16b, #2 - mov x15, #192 + mov x15, #SAO_STRIDE // strides between end of line and next src/dst sub x15, x15, x5 // stride_src - width sub x16, x2, x5 // stride_dst - width @@ -111,6 +115,7 @@ function ff_hevc_sao_edge_filter_16x16_8_neon, export=1 ld1 {v3.16b}, [x11], #16 // load src ld1 {v4.16b}, [x12], #16 // load src_a (prev) ld1 {v5.16b}, [x13], #16 // load src_b (next) + subs x14, x14, #16 cmhi v16.16b, v4.16b, v3.16b // (prev > cur) cmhi v17.16b, v3.16b, v4.16b // (cur > prev) cmhi v18.16b, v5.16b, v3.16b // (next > cur) @@ -130,12 +135,12 @@ function ff_hevc_sao_edge_filter_16x16_8_neon, export=1 sqxtun v3.8b, v20.8h sqxtun2 v3.16b, v21.8h st1 {v3.16b}, [x0], #16 - subs x14, x14, #16 // filtered 16 bytes + // filtered 16 bytes b.ne 2b // do we have width to filter? // no width to filter, setup next line + subs w6, w6, #1 // filtered line add x11, x11, x15 // stride src to next line add x0, x0, x16 // stride dst to next line - subs w6, w6, #1 // filtered line b.ne 1b // do we have lines to process? // no lines to filter ret @@ -156,17 +161,17 @@ function ff_hevc_sao_edge_filter_8x8_8_neon, export=1 movi v2.16b, #2 add x16, x0, x2 lsl x2, x2, #1 - mov x15, #192 + mov x15, #SAO_STRIDE mov x8, x1 sub x9, x1, x4 add x10, x1, x4 - lsr w17, w6, #1 1: ld1 {v3.d}[0], [ x8], x15 ld1 {v4.d}[0], [ x9], x15 ld1 {v5.d}[0], [x10], x15 ld1 {v3.d}[1], [ x8], x15 ld1 {v4.d}[1], [ x9], x15 ld1 {v5.d}[1], [x10], x15 + subs w6, w6, #2 cmhi v16.16b, v4.16b, v3.16b cmhi v17.16b, v3.16b, v4.16b cmhi v18.16b, v5.16b, v3.16b @@ -187,7 +192,6 @@ function ff_hevc_sao_edge_filter_8x8_8_neon, export=1 sqxtun v7.8b, v21.8h st1 {v6.8b}, [ x0], x2 st1 {v7.8b}, [x16], x2 - subs x17, x17, #1 b.ne 1b ret endfunc |