From: Janne Grunau Date: Fri, 20 Dec 2013 20:02:43 +0000 (+0100) Subject: aarch64: h264 loop filter NEON optimizations X-Git-Tag: android-x86-6.0-r1~10^2~2346 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=36e3b1f2fd262028834a9d7b1eb533c1218ee6c2;p=android-x86%2Fexternal-ffmpeg.git aarch64: h264 loop filter NEON optimizations Ported from ARMv7 NEON. --- diff --git a/libavcodec/aarch64/Makefile b/libavcodec/aarch64/Makefile index aa1dd4e073..93a8d0c294 100644 --- a/libavcodec/aarch64/Makefile +++ b/libavcodec/aarch64/Makefile @@ -6,7 +6,8 @@ OBJS-$(CONFIG_RV40_DECODER) += aarch64/rv40dsp_init_aarch64.o OBJS-$(CONFIG_VC1_DECODER) += aarch64/vc1dsp_init_aarch64.o NEON-OBJS-$(CONFIG_H264CHROMA) += aarch64/h264cmc_neon.o -NEON-OBJS-$(CONFIG_H264DSP) += aarch64/h264idct_neon.o +NEON-OBJS-$(CONFIG_H264DSP) += aarch64/h264dsp_neon.o \ + aarch64/h264idct_neon.o NEON-OBJS-$(CONFIG_H264QPEL) += aarch64/h264qpel_neon.o \ aarch64/hpeldsp_neon.o NEON-OBJS-$(CONFIG_HPELDSP) += aarch64/hpeldsp_neon.o diff --git a/libavcodec/aarch64/h264dsp_init_aarch64.c b/libavcodec/aarch64/h264dsp_init_aarch64.c index 8148336e66..307b30cd38 100644 --- a/libavcodec/aarch64/h264dsp_init_aarch64.c +++ b/libavcodec/aarch64/h264dsp_init_aarch64.c @@ -25,6 +25,15 @@ #include "libavutil/aarch64/cpu.h" #include "libavcodec/h264dsp.h" +void ff_h264_v_loop_filter_luma_neon(uint8_t *pix, int stride, int alpha, + int beta, int8_t *tc0); +void ff_h264_h_loop_filter_luma_neon(uint8_t *pix, int stride, int alpha, + int beta, int8_t *tc0); +void ff_h264_v_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha, + int beta, int8_t *tc0); +void ff_h264_h_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha, + int beta, int8_t *tc0); + void ff_h264_idct_add_neon(uint8_t *dst, int16_t *block, int stride); void ff_h264_idct_dc_add_neon(uint8_t *dst, int16_t *block, int stride); void ff_h264_idct_add16_neon(uint8_t *dst, const int *block_offset, @@ -49,6 +58,11 @@ av_cold void ff_h264dsp_init_aarch64(H264DSPContext *c, const int bit_depth, int cpu_flags = av_get_cpu_flags(); if (have_neon(cpu_flags) && bit_depth == 8) { + c->h264_v_loop_filter_luma = ff_h264_v_loop_filter_luma_neon; + c->h264_h_loop_filter_luma = ff_h264_h_loop_filter_luma_neon; + c->h264_v_loop_filter_chroma = ff_h264_v_loop_filter_chroma_neon; + c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma_neon; + c->h264_idct_add = ff_h264_idct_add_neon; c->h264_idct_dc_add = ff_h264_idct_dc_add_neon; c->h264_idct_add16 = ff_h264_idct_add16_neon; diff --git a/libavcodec/aarch64/h264dsp_neon.S b/libavcodec/aarch64/h264dsp_neon.S new file mode 100644 index 0000000000..777ddefa2a --- /dev/null +++ b/libavcodec/aarch64/h264dsp_neon.S @@ -0,0 +1,259 @@ +/* + * Copyright (c) 2008 Mans Rullgard + * Copyright (c) 2013 Janne Grunau + * + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/aarch64/asm.S" +#include "neon.S" + +.macro h264_loop_filter_start + cmp w2, #0 + ldr w6, [x4] + ccmp w3, #0, #0, ne + mov v24.S[0], w6 + and w6, w6, w6, lsl #16 + b.eq 1f + ands w6, w6, w6, lsl #8 + b.ge 2f +1: + ret +2: +.endm + +.macro h264_loop_filter_luma + dup v22.16B, w2 // alpha + uxtl v24.8H, v24.8B + uabd v21.16B, v16.16B, v0.16B // abs(p0 - q0) + uxtl v24.4S, v24.4H + uabd v28.16B, v18.16B, v16.16B // abs(p1 - p0) + sli v24.8H, v24.8H, #8 + uabd v30.16B, v2.16B, v0.16B // abs(q1 - q0) + sli v24.4S, v24.4S, #16 + cmhi v21.16B, v22.16B, v21.16B // < alpha + dup v22.16B, w3 // beta + cmlt v23.16B, v24.16B, #0 + cmhi v28.16B, v22.16B, v28.16B // < beta + cmhi v30.16B, v22.16B, v30.16B // < beta + bic v21.16B, v21.16B, v23.16B + uabd v17.16B, v20.16B, v16.16B // abs(p2 - p0) + and v21.16B, v21.16B, v28.16B + uabd v19.16B, v4.16B, v0.16B // abs(q2 - q0) + cmhi v17.16B, v22.16B, v17.16B // < beta + and v21.16B, v21.16B, v30.16B + cmhi v19.16B, v22.16B, v19.16B // < beta + and v17.16B, v17.16B, v21.16B + and v19.16B, v19.16B, v21.16B + and v24.16B, v24.16B, v21.16B + urhadd v28.16B, v16.16B, v0.16B + sub v21.16B, v24.16B, v17.16B + uqadd v23.16B, v18.16B, v24.16B + uhadd v20.16B, v20.16B, v28.16B + sub v21.16B, v21.16B, v19.16B + uhadd v28.16B, v4.16B, v28.16B + umin v23.16B, v23.16B, v20.16B + uqsub v22.16B, v18.16B, v24.16B + uqadd v4.16B, v2.16B, v24.16B + umax v23.16B, v23.16B, v22.16B + uqsub v22.16B, v2.16B, v24.16B + umin v28.16B, v4.16B, v28.16B + uxtl v4.8H, v0.8B + umax v28.16B, v28.16B, v22.16B + uxtl2 v20.8H, v0.16B + usubw v4.8H, v4.8H, v16.8B + usubw2 v20.8H, v20.8H, v16.16B + shl v4.8H, v4.8H, #2 + shl v20.8H, v20.8H, #2 + uaddw v4.8H, v4.8H, v18.8B + uaddw2 v20.8H, v20.8H, v18.16B + usubw v4.8H, v4.8H, v2.8B + usubw2 v20.8H, v20.8H, v2.16B + rshrn v4.8B, v4.8H, #3 + rshrn2 v4.16B, v20.8H, #3 + bsl v17.16B, v23.16B, v18.16B + bsl v19.16B, v28.16B, v2.16B + neg v23.16B, v21.16B + uxtl v28.8H, v16.8B + smin v4.16B, v4.16B, v21.16B + uxtl2 v21.8H, v16.16B + smax v4.16B, v4.16B, v23.16B + uxtl v22.8H, v0.8B + uxtl2 v24.8H, v0.16B + saddw v28.8H, v28.8H, v4.8B + saddw2 v21.8H, v21.8H, v4.16B + ssubw v22.8H, v22.8H, v4.8B + ssubw2 v24.8H, v24.8H, v4.16B + sqxtun v16.8B, v28.8H + sqxtun2 v16.16B, v21.8H + sqxtun v0.8B, v22.8H + sqxtun2 v0.16B, v24.8H +.endm + +function ff_h264_v_loop_filter_luma_neon, export=1 + h264_loop_filter_start + sxtw x1, w1 + + ld1 {v0.16B}, [x0], x1 + ld1 {v2.16B}, [x0], x1 + ld1 {v4.16B}, [x0], x1 + sub x0, x0, x1, lsl #2 + sub x0, x0, x1, lsl #1 + ld1 {v20.16B}, [x0], x1 + ld1 {v18.16B}, [x0], x1 + ld1 {v16.16B}, [x0], x1 + + h264_loop_filter_luma + + sub x0, x0, x1, lsl #1 + st1 {v17.16B}, [x0], x1 + st1 {v16.16B}, [x0], x1 + st1 {v0.16B}, [x0], x1 + st1 {v19.16B}, [x0] + + ret +endfunc + +function ff_h264_h_loop_filter_luma_neon, export=1 + h264_loop_filter_start + + sub x0, x0, #4 + ld1 {v6.8B}, [x0], x1 + ld1 {v20.8B}, [x0], x1 + ld1 {v18.8B}, [x0], x1 + ld1 {v16.8B}, [x0], x1 + ld1 {v0.8B}, [x0], x1 + ld1 {v2.8B}, [x0], x1 + ld1 {v4.8B}, [x0], x1 + ld1 {v26.8B}, [x0], x1 + ld1 {v6.D}[1], [x0], x1 + ld1 {v20.D}[1], [x0], x1 + ld1 {v18.D}[1], [x0], x1 + ld1 {v16.D}[1], [x0], x1 + ld1 {v0.D}[1], [x0], x1 + ld1 {v2.D}[1], [x0], x1 + ld1 {v4.D}[1], [x0], x1 + ld1 {v26.D}[1], [x0], x1 + + transpose_8x16B v6, v20, v18, v16, v0, v2, v4, v26, v21, v23 + + h264_loop_filter_luma + + transpose_4x16B v17, v16, v0, v19, v21, v23, v25, v27 + + sub x0, x0, x1, lsl #4 + add x0, x0, #2 + st1 {v17.S}[0], [x0], x1 + st1 {v16.S}[0], [x0], x1 + st1 {v0.S}[0], [x0], x1 + st1 {v19.S}[0], [x0], x1 + st1 {v17.S}[1], [x0], x1 + st1 {v16.S}[1], [x0], x1 + st1 {v0.S}[1], [x0], x1 + st1 {v19.S}[1], [x0], x1 + st1 {v17.S}[2], [x0], x1 + st1 {v16.S}[2], [x0], x1 + st1 {v0.S}[2], [x0], x1 + st1 {v19.S}[2], [x0], x1 + st1 {v17.S}[3], [x0], x1 + st1 {v16.S}[3], [x0], x1 + st1 {v0.S}[3], [x0], x1 + st1 {v19.S}[3], [x0], x1 + + ret +endfunc + +.macro h264_loop_filter_chroma + dup v22.8B, w2 // alpha + uxtl v24.8H, v24.8B + uabd v26.8B, v16.8B, v0.8B // abs(p0 - q0) + uxtl v4.8H, v0.8B + uabd v28.8B, v18.8B, v16.8B // abs(p1 - p0) + usubw v4.8H, v4.8H, v16.8B + sli v24.8H, v24.8H, #8 + shl v4.8H, v4.8H, #2 + uabd v30.8B, v2.8B, v0.8B // abs(q1 - q0) + uaddw v4.8H, v4.8H, v18.8B + cmhi v26.8B, v22.8B, v26.8B // < alpha + usubw v4.8H, v4.8H, v2.8B + dup v22.8B, w3 // beta + rshrn v4.8B, v4.8H, #3 + cmhi v28.8B, v22.8B, v28.8B // < beta + cmhi v30.8B, v22.8B, v30.8B // < beta + smin v4.8B, v4.8B, v24.8B + neg v25.8B, v24.8B + and v26.8B, v26.8B, v28.8B + smax v4.8B, v4.8B, v25.8B + and v26.8B, v26.8B, v30.8B + uxtl v22.8H, v0.8B + and v4.8B, v4.8B, v26.8B + uxtl v28.8H, v16.8B + saddw v28.8H, v28.8H, v4.8B + ssubw v22.8H, v22.8H, v4.8B + sqxtun v16.8B, v28.8H + sqxtun v0.8B, v22.8H +.endm + +function ff_h264_v_loop_filter_chroma_neon, export=1 + h264_loop_filter_start + + sub x0, x0, x1, lsl #1 + ld1 {v18.8B}, [x0], x1 + ld1 {v16.8B}, [x0], x1 + ld1 {v0.8B}, [x0], x1 + ld1 {v2.8B}, [x0] + + h264_loop_filter_chroma + + sub x0, x0, x1, lsl #1 + st1 {v16.8B}, [x0], x1 + st1 {v0.8B}, [x0], x1 + + ret +endfunc + +function ff_h264_h_loop_filter_chroma_neon, export=1 + h264_loop_filter_start + + sub x0, x0, #2 + ld1 {v18.S}[0], [x0], x1 + ld1 {v16.S}[0], [x0], x1 + ld1 {v0.S}[0], [x0], x1 + ld1 {v2.S}[0], [x0], x1 + ld1 {v18.S}[1], [x0], x1 + ld1 {v16.S}[1], [x0], x1 + ld1 {v0.S}[1], [x0], x1 + ld1 {v2.S}[1], [x0], x1 + + transpose_4x8B v18, v16, v0, v2, v28, v29, v30, v31 + + h264_loop_filter_chroma + + transpose_4x8B v18, v16, v0, v2, v28, v29, v30, v31 + + sub x0, x0, x1, lsl #3 + st1 {v18.S}[0], [x0], x1 + st1 {v16.S}[0], [x0], x1 + st1 {v0.S}[0], [x0], x1 + st1 {v2.S}[0], [x0], x1 + st1 {v18.S}[1], [x0], x1 + st1 {v16.S}[1], [x0], x1 + st1 {v0.S}[1], [x0], x1 + st1 {v2.S}[1], [x0], x1 + + ret +endfunc diff --git a/libavcodec/aarch64/neon.S b/libavcodec/aarch64/neon.S index c4310d7bc0..f1072b73e5 100644 --- a/libavcodec/aarch64/neon.S +++ b/libavcodec/aarch64/neon.S @@ -80,6 +80,30 @@ trn2 \r7\().4S, \t1\().4S, \r7\().4S .endm +.macro transpose_4x16B r0, r1, r2, r3, t4, t5, t6, t7 + trn1 \t4\().16B, \r0\().16B, \r1\().16B + trn2 \t5\().16B, \r0\().16B, \r1\().16B + trn1 \t6\().16B, \r2\().16B, \r3\().16B + trn2 \t7\().16B, \r2\().16B, \r3\().16B + + trn1 \r0\().8H, \t4\().8H, \t6\().8H + trn2 \r2\().8H, \t4\().8H, \t6\().8H + trn1 \r1\().8H, \t5\().8H, \t7\().8H + trn2 \r3\().8H, \t5\().8H, \t7\().8H +.endm + +.macro transpose_4x8B r0, r1, r2, r3, t4, t5, t6, t7 + trn1 \t4\().8B, \r0\().8B, \r1\().8B + trn2 \t5\().8B, \r0\().8B, \r1\().8B + trn1 \t6\().8B, \r2\().8B, \r3\().8B + trn2 \t7\().8B, \r2\().8B, \r3\().8B + + trn1 \r0\().4H, \t4\().4H, \t6\().4H + trn2 \r2\().4H, \t4\().4H, \t6\().4H + trn1 \r1\().4H, \t5\().4H, \t7\().4H + trn2 \r3\().4H, \t5\().4H, \t7\().4H +.endm + .macro transpose_4x4H r0, r1, r2, r3, r4, r5, r6, r7 trn1 \r4\().4H, \r0\().4H, \r1\().4H trn2 \r5\().4H, \r0\().4H, \r1\().4H