ffmpeg | branch: master | Ramiro Polla <ramiro.po...@gmail.com> | Wed Apr 17 20:01:38 2024 +0200| [d4d09c8e4220ec0872784c44b9ca299bc30244e7] | committer: Ramiro Polla
lavc/aarch64/fdct: add neon-optimized fdct for aarch64 The code is imported from libjpeg-turbo-3.0.1. The neon registers used have been changed to avoid modifying v8-v15. Reviewed-by: Martin Storsjö <mar...@martin.st> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d4d09c8e4220ec0872784c44b9ca299bc30244e7 --- libavcodec/aarch64/Makefile | 2 + libavcodec/aarch64/fdct.h | 26 +++ libavcodec/aarch64/fdctdsp_init_aarch64.c | 39 ++++ libavcodec/aarch64/fdctdsp_neon.S | 368 ++++++++++++++++++++++++++++++ libavcodec/avcodec.h | 1 + libavcodec/fdctdsp.c | 4 +- libavcodec/fdctdsp.h | 2 + libavcodec/options_table.h | 1 + libavcodec/tests/aarch64/dct.c | 2 + 9 files changed, 444 insertions(+), 1 deletion(-) diff --git a/libavcodec/aarch64/Makefile b/libavcodec/aarch64/Makefile index 95ad4dd202..a3256bb1cc 100644 --- a/libavcodec/aarch64/Makefile +++ b/libavcodec/aarch64/Makefile @@ -1,5 +1,6 @@ # subsystems OBJS-$(CONFIG_AC3DSP) += aarch64/ac3dsp_init_aarch64.o +OBJS-$(CONFIG_FDCTDSP) += aarch64/fdctdsp_init_aarch64.o OBJS-$(CONFIG_FMTCONVERT) += aarch64/fmtconvert_init.o OBJS-$(CONFIG_H264CHROMA) += aarch64/h264chroma_init_aarch64.o OBJS-$(CONFIG_H264DSP) += aarch64/h264dsp_init_aarch64.o @@ -37,6 +38,7 @@ ARMV8-OBJS-$(CONFIG_VIDEODSP) += aarch64/videodsp.o # subsystems NEON-OBJS-$(CONFIG_AAC_DECODER) += aarch64/sbrdsp_neon.o NEON-OBJS-$(CONFIG_AC3DSP) += aarch64/ac3dsp_neon.o +NEON-OBJS-$(CONFIG_FDCTDSP) += aarch64/fdctdsp_neon.o NEON-OBJS-$(CONFIG_FMTCONVERT) += aarch64/fmtconvert_neon.o NEON-OBJS-$(CONFIG_H264CHROMA) += aarch64/h264cmc_neon.o NEON-OBJS-$(CONFIG_H264DSP) += aarch64/h264dsp_neon.o \ diff --git a/libavcodec/aarch64/fdct.h b/libavcodec/aarch64/fdct.h new file mode 100644 index 0000000000..0901b53a83 --- /dev/null +++ b/libavcodec/aarch64/fdct.h @@ -0,0 +1,26 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg 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. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVCODEC_AARCH64_FDCT_H +#define AVCODEC_AARCH64_FDCT_H + +#include <stdint.h> + +void ff_fdct_neon(int16_t *block); + +#endif /* AVCODEC_AARCH64_FDCT_H */ diff --git a/libavcodec/aarch64/fdctdsp_init_aarch64.c b/libavcodec/aarch64/fdctdsp_init_aarch64.c new file mode 100644 index 0000000000..59d91bc8fc --- /dev/null +++ b/libavcodec/aarch64/fdctdsp_init_aarch64.c @@ -0,0 +1,39 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg 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. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/attributes.h" +#include "libavutil/cpu.h" +#include "libavutil/aarch64/cpu.h" +#include "libavcodec/avcodec.h" +#include "libavcodec/fdctdsp.h" +#include "fdct.h" + +av_cold void ff_fdctdsp_init_aarch64(FDCTDSPContext *c, AVCodecContext *avctx, + unsigned high_bit_depth) +{ + int cpu_flags = av_get_cpu_flags(); + + if (have_neon(cpu_flags)) { + if (!high_bit_depth) { + if (avctx->dct_algo == FF_DCT_AUTO || + avctx->dct_algo == FF_DCT_NEON) { + c->fdct = ff_fdct_neon; + } + } + } +} diff --git a/libavcodec/aarch64/fdctdsp_neon.S b/libavcodec/aarch64/fdctdsp_neon.S new file mode 100644 index 0000000000..53fa4debe5 --- /dev/null +++ b/libavcodec/aarch64/fdctdsp_neon.S @@ -0,0 +1,368 @@ +/* + * Armv8 Neon optimizations for libjpeg-turbo + * + * Copyright (C) 2009-2011, Nokia Corporation and/or its subsidiary(-ies). + * All Rights Reserved. + * Author: Siarhei Siamashka <siarhei.siamas...@nokia.com> + * Copyright (C) 2013-2014, Linaro Limited. All Rights Reserved. + * Author: Ragesh Radhakrishnan <rages...@linaro.org> + * Copyright (C) 2014-2016, 2020, D. R. Commander. All Rights Reserved. + * Copyright (C) 2015-2016, 2018, Matthieu Darbois. All Rights Reserved. + * Copyright (C) 2016, Siarhei Siamashka. All Rights Reserved. + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * 3. This notice may not be removed or altered from any source distribution. + */ + +#include "libavutil/aarch64/asm.S" +#include "neon.S" + +// #define EIGHT_BIT_SAMPLES + +/* Constants for jsimd_fdct_islow_neon() */ + +#define F_0_298 2446 /* FIX(0.298631336) */ +#define F_0_390 3196 /* FIX(0.390180644) */ +#define F_0_541 4433 /* FIX(0.541196100) */ +#define F_0_765 6270 /* FIX(0.765366865) */ +#define F_0_899 7373 /* FIX(0.899976223) */ +#define F_1_175 9633 /* FIX(1.175875602) */ +#define F_1_501 12299 /* FIX(1.501321110) */ +#define F_1_847 15137 /* FIX(1.847759065) */ +#define F_1_961 16069 /* FIX(1.961570560) */ +#define F_2_053 16819 /* FIX(2.053119869) */ +#define F_2_562 20995 /* FIX(2.562915447) */ +#define F_3_072 25172 /* FIX(3.072711026) */ + +const jsimd_fdct_islow_neon_consts, align=4 + .short F_0_298 + .short -F_0_390 + .short F_0_541 + .short F_0_765 + .short - F_0_899 + .short F_1_175 + .short F_1_501 + .short - F_1_847 + .short - F_1_961 + .short F_2_053 + .short - F_2_562 + .short F_3_072 + .short 0 /* padding */ + .short 0 + .short 0 + .short 0 +endconst + +#undef F_0_298 +#undef F_0_390 +#undef F_0_541 +#undef F_0_765 +#undef F_0_899 +#undef F_1_175 +#undef F_1_501 +#undef F_1_847 +#undef F_1_961 +#undef F_2_053 +#undef F_2_562 +#undef F_3_072 + +/*****************************************************************************/ + +/* + * jsimd_fdct_islow_neon + * + * This file contains a slower but more accurate integer implementation of the + * forward DCT (Discrete Cosine Transform). The following code is based + * directly on the IJG''s original jfdctint.c; see the jfdctint.c for + * more details. + */ + +#define CONST_BITS 13 +#ifdef EIGHT_BIT_SAMPLES +#define PASS1_BITS 2 +#else +#define PASS1_BITS 1 /* lose a little precision to avoid overflow */ +#endif + +#define DESCALE_P1 (CONST_BITS - PASS1_BITS) +#define DESCALE_P2 (CONST_BITS + PASS1_BITS) + +#define XFIX_P_0_298 v0.h[0] +#define XFIX_N_0_390 v0.h[1] +#define XFIX_P_0_541 v0.h[2] +#define XFIX_P_0_765 v0.h[3] +#define XFIX_N_0_899 v0.h[4] +#define XFIX_P_1_175 v0.h[5] +#define XFIX_P_1_501 v0.h[6] +#define XFIX_N_1_847 v0.h[7] +#define XFIX_N_1_961 v1.h[0] +#define XFIX_P_2_053 v1.h[1] +#define XFIX_N_2_562 v1.h[2] +#define XFIX_P_3_072 v1.h[3] + +function ff_fdct_neon, export=1 + + DATA .req x0 + TMP .req x9 + + /* Load constants */ + movrel TMP, jsimd_fdct_islow_neon_consts + ld1 {v0.8h, v1.8h}, [TMP] + + /* Load all DATA into Neon registers with the following allocation: + * 0 1 2 3 | 4 5 6 7 + * ---------+-------- + * 0 | d16 | d17 | v16.8h + * 1 | d18 | d19 | v17.8h + * 2 | d20 | d21 | v18.8h + * 3 | d22 | d23 | v19.8h + * 4 | d24 | d25 | v20.8h + * 5 | d26 | d27 | v21.8h + * 6 | d28 | d29 | v22.8h + * 7 | d30 | d31 | v23.8h + */ + + ld1 {v16.8h, v17.8h, v18.8h, v19.8h}, [DATA], 64 + ld1 {v20.8h, v21.8h, v22.8h, v23.8h}, [DATA] + sub DATA, DATA, #64 + + /* Transpose */ + transpose_8x8H v16, v17, v18, v19, v20, v21, v22, v23, v31, v2 + + /* 1-D FDCT */ + add v24.8h, v16.8h, v23.8h /* tmp0 = dataptr[0] + dataptr[7]; */ + sub v31.8h, v16.8h, v23.8h /* tmp7 = dataptr[0] - dataptr[7]; */ + add v25.8h, v17.8h, v22.8h /* tmp1 = dataptr[1] + dataptr[6]; */ + sub v30.8h, v17.8h, v22.8h /* tmp6 = dataptr[1] - dataptr[6]; */ + add v26.8h, v18.8h, v21.8h /* tmp2 = dataptr[2] + dataptr[5]; */ + sub v29.8h, v18.8h, v21.8h /* tmp5 = dataptr[2] - dataptr[5]; */ + add v27.8h, v19.8h, v20.8h /* tmp3 = dataptr[3] + dataptr[4]; */ + sub v28.8h, v19.8h, v20.8h /* tmp4 = dataptr[3] - dataptr[4]; */ + + /* Even part */ + add v4.8h, v24.8h, v27.8h /* tmp10 = tmp0 + tmp3; */ + sub v5.8h, v24.8h, v27.8h /* tmp13 = tmp0 - tmp3; */ + add v6.8h, v25.8h, v26.8h /* tmp11 = tmp1 + tmp2; */ + sub v7.8h, v25.8h, v26.8h /* tmp12 = tmp1 - tmp2; */ + + add v16.8h, v4.8h, v6.8h /* tmp10 + tmp11 */ + sub v20.8h, v4.8h, v6.8h /* tmp10 - tmp11 */ + + add v18.8h, v7.8h, v5.8h /* tmp12 + tmp13 */ + + shl v16.8h, v16.8h, #PASS1_BITS /* dataptr[0] = (DCTELEM)LEFT_SHIFT(tmp10 + tmp11, PASS1_BITS); */ + shl v20.8h, v20.8h, #PASS1_BITS /* dataptr[4] = (DCTELEM)LEFT_SHIFT(tmp10 - tmp11, PASS1_BITS); */ + + smull2 v24.4s, v18.8h, XFIX_P_0_541 /* z1 hi = MULTIPLY(tmp12 + tmp13, XFIX_P_0_541); */ + smull v18.4s, v18.4h, XFIX_P_0_541 /* z1 lo = MULTIPLY(tmp12 + tmp13, XFIX_P_0_541); */ + mov v22.16b, v18.16b + mov v25.16b, v24.16b + + smlal v18.4s, v5.4h, XFIX_P_0_765 /* lo z1 + MULTIPLY(tmp13, XFIX_P_0_765) */ + smlal2 v24.4s, v5.8h, XFIX_P_0_765 /* hi z1 + MULTIPLY(tmp13, XFIX_P_0_765) */ + smlal v22.4s, v7.4h, XFIX_N_1_847 /* lo z1 + MULTIPLY(tmp12, XFIX_N_1_847) */ + smlal2 v25.4s, v7.8h, XFIX_N_1_847 /* hi z1 + MULTIPLY(tmp12, XFIX_N_1_847) */ + + rshrn v18.4h, v18.4s, #DESCALE_P1 + rshrn v22.4h, v22.4s, #DESCALE_P1 + rshrn2 v18.8h, v24.4s, #DESCALE_P1 /* dataptr[2] = (DCTELEM)DESCALE(z1 + MULTIPLY(tmp13, XFIX_P_0_765), CONST_BITS-PASS1_BITS); */ + rshrn2 v22.8h, v25.4s, #DESCALE_P1 /* dataptr[6] = (DCTELEM)DESCALE(z1 + MULTIPLY(tmp12, XFIX_N_1_847), CONST_BITS-PASS1_BITS); */ + + /* Odd part */ + add v2.8h, v28.8h, v31.8h /* z1 = tmp4 + tmp7; */ + add v3.8h, v29.8h, v30.8h /* z2 = tmp5 + tmp6; */ + add v6.8h, v28.8h, v30.8h /* z3 = tmp4 + tmp6; */ + add v7.8h, v29.8h, v31.8h /* z4 = tmp5 + tmp7; */ + smull v4.4s, v6.4h, XFIX_P_1_175 /* z5 lo = z3 lo * XFIX_P_1_175 */ + smull2 v5.4s, v6.8h, XFIX_P_1_175 + smlal v4.4s, v7.4h, XFIX_P_1_175 /* z5 = MULTIPLY(z3 + z4, FIX_1_175875602); */ + smlal2 v5.4s, v7.8h, XFIX_P_1_175 + + smull2 v24.4s, v28.8h, XFIX_P_0_298 + smull2 v25.4s, v29.8h, XFIX_P_2_053 + smull2 v26.4s, v30.8h, XFIX_P_3_072 + smull2 v27.4s, v31.8h, XFIX_P_1_501 + smull v23.4s, v28.4h, XFIX_P_0_298 /* tmp4 = MULTIPLY(tmp4, FIX_0_298631336); */ + smull v21.4s, v29.4h, XFIX_P_2_053 /* tmp5 = MULTIPLY(tmp5, FIX_2_053119869); */ + smull v19.4s, v30.4h, XFIX_P_3_072 /* tmp6 = MULTIPLY(tmp6, FIX_3_072711026); */ + smull v17.4s, v31.4h, XFIX_P_1_501 /* tmp7 = MULTIPLY(tmp7, FIX_1_501321110); */ + + smull2 v28.4s, v2.8h, XFIX_N_0_899 + smull2 v29.4s, v3.8h, XFIX_N_2_562 + smull2 v30.4s, v6.8h, XFIX_N_1_961 + smull2 v31.4s, v7.8h, XFIX_N_0_390 + smull v2.4s, v2.4h, XFIX_N_0_899 /* z1 = MULTIPLY(z1, -FIX_0_899976223); */ + smull v3.4s, v3.4h, XFIX_N_2_562 /* z2 = MULTIPLY(z2, -FIX_2_562915447); */ + smull v6.4s, v6.4h, XFIX_N_1_961 /* z3 = MULTIPLY(z3, -FIX_1_961570560); */ + smull v7.4s, v7.4h, XFIX_N_0_390 /* z4 = MULTIPLY(z4, -FIX_0_390180644); */ + + add v6.4s, v6.4s, v4.4s /* z3 += z5 */ + add v30.4s, v30.4s, v5.4s + add v7.4s, v7.4s, v4.4s /* z4 += z5 */ + add v31.4s, v31.4s, v5.4s + + add v23.4s, v23.4s, v2.4s /* tmp4 += z1 */ + add v24.4s, v24.4s, v28.4s + add v21.4s, v21.4s, v3.4s /* tmp5 += z2 */ + add v25.4s, v25.4s, v29.4s + add v19.4s, v19.4s, v6.4s /* tmp6 += z3 */ + add v26.4s, v26.4s, v30.4s + add v17.4s, v17.4s, v7.4s /* tmp7 += z4 */ + add v27.4s, v27.4s, v31.4s + + add v23.4s, v23.4s, v6.4s /* tmp4 += z3 */ + add v24.4s, v24.4s, v30.4s + add v21.4s, v21.4s, v7.4s /* tmp5 += z4 */ + add v25.4s, v25.4s, v31.4s + add v19.4s, v19.4s, v3.4s /* tmp6 += z2 */ + add v26.4s, v26.4s, v29.4s + add v17.4s, v17.4s, v2.4s /* tmp7 += z1 */ + add v27.4s, v27.4s, v28.4s + + rshrn v23.4h, v23.4s, #DESCALE_P1 + rshrn v21.4h, v21.4s, #DESCALE_P1 + rshrn v19.4h, v19.4s, #DESCALE_P1 + rshrn v17.4h, v17.4s, #DESCALE_P1 + rshrn2 v23.8h, v24.4s, #DESCALE_P1 /* dataptr[7] = (DCTELEM)DESCALE(tmp4 + z1 + z3, CONST_BITS-PASS1_BITS); */ + rshrn2 v21.8h, v25.4s, #DESCALE_P1 /* dataptr[5] = (DCTELEM)DESCALE(tmp5 + z2 + z4, CONST_BITS-PASS1_BITS); */ + rshrn2 v19.8h, v26.4s, #DESCALE_P1 /* dataptr[3] = (DCTELEM)DESCALE(tmp6 + z2 + z3, CONST_BITS-PASS1_BITS); */ + rshrn2 v17.8h, v27.4s, #DESCALE_P1 /* dataptr[1] = (DCTELEM)DESCALE(tmp7 + z1 + z4, CONST_BITS-PASS1_BITS); */ + + /* Transpose */ + transpose_8x8H v16, v17, v18, v19, v20, v21, v22, v23, v31, v2 + + /* 1-D FDCT */ + add v24.8h, v16.8h, v23.8h /* tmp0 = dataptr[0] + dataptr[7]; */ + sub v31.8h, v16.8h, v23.8h /* tmp7 = dataptr[0] - dataptr[7]; */ + add v25.8h, v17.8h, v22.8h /* tmp1 = dataptr[1] + dataptr[6]; */ + sub v30.8h, v17.8h, v22.8h /* tmp6 = dataptr[1] - dataptr[6]; */ + add v26.8h, v18.8h, v21.8h /* tmp2 = dataptr[2] + dataptr[5]; */ + sub v29.8h, v18.8h, v21.8h /* tmp5 = dataptr[2] - dataptr[5]; */ + add v27.8h, v19.8h, v20.8h /* tmp3 = dataptr[3] + dataptr[4]; */ + sub v28.8h, v19.8h, v20.8h /* tmp4 = dataptr[3] - dataptr[4]; */ + + /* Even part */ + add v4.8h, v24.8h, v27.8h /* tmp10 = tmp0 + tmp3; */ + sub v5.8h, v24.8h, v27.8h /* tmp13 = tmp0 - tmp3; */ + add v6.8h, v25.8h, v26.8h /* tmp11 = tmp1 + tmp2; */ + sub v7.8h, v25.8h, v26.8h /* tmp12 = tmp1 - tmp2; */ + + add v16.8h, v4.8h, v6.8h /* tmp10 + tmp11 */ + sub v20.8h, v4.8h, v6.8h /* tmp10 - tmp11 */ + + add v18.8h, v7.8h, v5.8h /* tmp12 + tmp13 */ + + srshr v16.8h, v16.8h, #PASS1_BITS /* dataptr[0] = (DCTELEM)DESCALE(tmp10 + tmp11, PASS1_BITS); */ + srshr v20.8h, v20.8h, #PASS1_BITS /* dataptr[4] = (DCTELEM)DESCALE(tmp10 - tmp11, PASS1_BITS); */ + + smull2 v24.4s, v18.8h, XFIX_P_0_541 /* z1 hi = MULTIPLY(tmp12 + tmp13, XFIX_P_0_541); */ + smull v18.4s, v18.4h, XFIX_P_0_541 /* z1 lo = MULTIPLY(tmp12 + tmp13, XFIX_P_0_541); */ + mov v22.16b, v18.16b + mov v25.16b, v24.16b + + smlal v18.4s, v5.4h, XFIX_P_0_765 /* lo z1 + MULTIPLY(tmp13, XFIX_P_0_765) */ + smlal2 v24.4s, v5.8h, XFIX_P_0_765 /* hi z1 + MULTIPLY(tmp13, XFIX_P_0_765) */ + smlal v22.4s, v7.4h, XFIX_N_1_847 /* lo z1 + MULTIPLY(tmp12, XFIX_N_1_847) */ + smlal2 v25.4s, v7.8h, XFIX_N_1_847 /* hi z1 + MULTIPLY(tmp12, XFIX_N_1_847) */ + + rshrn v18.4h, v18.4s, #DESCALE_P2 + rshrn v22.4h, v22.4s, #DESCALE_P2 + rshrn2 v18.8h, v24.4s, #DESCALE_P2 /* dataptr[2] = (DCTELEM)DESCALE(z1 + MULTIPLY(tmp13, XFIX_P_0_765), CONST_BITS+PASS1_BITS); */ + rshrn2 v22.8h, v25.4s, #DESCALE_P2 /* dataptr[6] = (DCTELEM)DESCALE(z1 + MULTIPLY(tmp12, XFIX_N_1_847), CONST_BITS+PASS1_BITS); */ + + /* Odd part */ + add v2.8h, v28.8h, v31.8h /* z1 = tmp4 + tmp7; */ + add v3.8h, v29.8h, v30.8h /* z2 = tmp5 + tmp6; */ + add v6.8h, v28.8h, v30.8h /* z3 = tmp4 + tmp6; */ + add v7.8h, v29.8h, v31.8h /* z4 = tmp5 + tmp7; */ + + smull v4.4s, v6.4h, XFIX_P_1_175 /* z5 lo = z3 lo * XFIX_P_1_175 */ + smull2 v5.4s, v6.8h, XFIX_P_1_175 + smlal v4.4s, v7.4h, XFIX_P_1_175 /* z5 = MULTIPLY(z3 + z4, FIX_1_175875602); */ + smlal2 v5.4s, v7.8h, XFIX_P_1_175 + + smull2 v24.4s, v28.8h, XFIX_P_0_298 + smull2 v25.4s, v29.8h, XFIX_P_2_053 + smull2 v26.4s, v30.8h, XFIX_P_3_072 + smull2 v27.4s, v31.8h, XFIX_P_1_501 + smull v23.4s, v28.4h, XFIX_P_0_298 /* tmp4 = MULTIPLY(tmp4, FIX_0_298631336); */ + smull v21.4s, v29.4h, XFIX_P_2_053 /* tmp5 = MULTIPLY(tmp5, FIX_2_053119869); */ + smull v19.4s, v30.4h, XFIX_P_3_072 /* tmp6 = MULTIPLY(tmp6, FIX_3_072711026); */ + smull v17.4s, v31.4h, XFIX_P_1_501 /* tmp7 = MULTIPLY(tmp7, FIX_1_501321110); */ + + smull2 v28.4s, v2.8h, XFIX_N_0_899 + smull2 v29.4s, v3.8h, XFIX_N_2_562 + smull2 v30.4s, v6.8h, XFIX_N_1_961 + smull2 v31.4s, v7.8h, XFIX_N_0_390 + smull v2.4s, v2.4h, XFIX_N_0_899 /* z1 = MULTIPLY(z1, -FIX_0_899976223); */ + smull v3.4s, v3.4h, XFIX_N_2_562 /* z2 = MULTIPLY(z2, -FIX_2_562915447); */ + smull v6.4s, v6.4h, XFIX_N_1_961 /* z3 = MULTIPLY(z3, -FIX_1_961570560); */ + smull v7.4s, v7.4h, XFIX_N_0_390 /* z4 = MULTIPLY(z4, -FIX_0_390180644); */ + + add v6.4s, v6.4s, v4.4s /* z3 += z5 */ + add v30.4s, v30.4s, v5.4s + add v7.4s, v7.4s, v4.4s /* z4 += z5 */ + add v31.4s, v31.4s, v5.4s + + add v23.4s, v23.4s, v2.4s /* tmp4 += z1 */ + add v24.4s, v24.4s, v28.4s + add v21.4s, v21.4s, v3.4s /* tmp5 += z2 */ + add v25.4s, v25.4s, v29.4s + add v19.4s, v19.4s, v6.4s /* tmp6 += z3 */ + add v26.4s, v26.4s, v30.4s + add v17.4s, v17.4s, v7.4s /* tmp7 += z4 */ + add v27.4s, v27.4s, v31.4s + + add v23.4s, v23.4s, v6.4s /* tmp4 += z3 */ + add v24.4s, v24.4s, v30.4s + add v21.4s, v21.4s, v7.4s /* tmp5 += z4 */ + add v25.4s, v25.4s, v31.4s + add v19.4s, v19.4s, v3.4s /* tmp6 += z2 */ + add v26.4s, v26.4s, v29.4s + add v17.4s, v17.4s, v2.4s /* tmp7 += z1 */ + add v27.4s, v27.4s, v28.4s + + rshrn v23.4h, v23.4s, #DESCALE_P2 + rshrn v21.4h, v21.4s, #DESCALE_P2 + rshrn v19.4h, v19.4s, #DESCALE_P2 + rshrn v17.4h, v17.4s, #DESCALE_P2 + rshrn2 v23.8h, v24.4s, #DESCALE_P2 /* dataptr[7] = (DCTELEM)DESCALE(tmp4 + z1 + z3, CONST_BITS+PASS1_BITS); */ + rshrn2 v21.8h, v25.4s, #DESCALE_P2 /* dataptr[5] = (DCTELEM)DESCALE(tmp5 + z2 + z4, CONST_BITS+PASS1_BITS); */ + rshrn2 v19.8h, v26.4s, #DESCALE_P2 /* dataptr[3] = (DCTELEM)DESCALE(tmp6 + z2 + z3, CONST_BITS+PASS1_BITS); */ + rshrn2 v17.8h, v27.4s, #DESCALE_P2 /* dataptr[1] = (DCTELEM)DESCALE(tmp7 + z1 + z4, CONST_BITS+PASS1_BITS); */ + + /* Store results */ + st1 {v16.8h, v17.8h, v18.8h, v19.8h}, [DATA], 64 + st1 {v20.8h, v21.8h, v22.8h, v23.8h}, [DATA] + + ret + + .unreq DATA + .unreq TMP +endfunc + +#undef XFIX_P_0_298 +#undef XFIX_N_0_390 +#undef XFIX_P_0_541 +#undef XFIX_P_0_765 +#undef XFIX_N_0_899 +#undef XFIX_P_1_175 +#undef XFIX_P_1_501 +#undef XFIX_N_1_847 +#undef XFIX_N_1_961 +#undef XFIX_P_2_053 +#undef XFIX_N_2_562 +#undef XFIX_P_3_072 diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h index 968009a192..2da63c87ea 100644 --- a/libavcodec/avcodec.h +++ b/libavcodec/avcodec.h @@ -1538,6 +1538,7 @@ typedef struct AVCodecContext { #define FF_DCT_MMX 3 #define FF_DCT_ALTIVEC 5 #define FF_DCT_FAAN 6 +#define FF_DCT_NEON 7 /** * IDCT algorithm, see FF_IDCT_* below. diff --git a/libavcodec/fdctdsp.c b/libavcodec/fdctdsp.c index f8ba17426c..d20558ce88 100644 --- a/libavcodec/fdctdsp.c +++ b/libavcodec/fdctdsp.c @@ -42,7 +42,9 @@ av_cold void ff_fdctdsp_init(FDCTDSPContext *c, AVCodecContext *avctx) c->fdct248 = ff_fdct248_islow_8; } -#if ARCH_PPC +#if ARCH_AARCH64 + ff_fdctdsp_init_aarch64(c, avctx, high_bit_depth); +#elif ARCH_PPC ff_fdctdsp_init_ppc(c, avctx, high_bit_depth); #elif ARCH_X86 ff_fdctdsp_init_x86(c, avctx, high_bit_depth); diff --git a/libavcodec/fdctdsp.h b/libavcodec/fdctdsp.h index 7378eab870..cad99ed7ca 100644 --- a/libavcodec/fdctdsp.h +++ b/libavcodec/fdctdsp.h @@ -32,6 +32,8 @@ typedef struct FDCTDSPContext { FF_VISIBILITY_PUSH_HIDDEN void ff_fdctdsp_init(FDCTDSPContext *c, struct AVCodecContext *avctx); +void ff_fdctdsp_init_aarch64(FDCTDSPContext *c, struct AVCodecContext *avctx, + unsigned high_bit_depth); void ff_fdctdsp_init_ppc(FDCTDSPContext *c, struct AVCodecContext *avctx, unsigned high_bit_depth); void ff_fdctdsp_init_x86(FDCTDSPContext *c, struct AVCodecContext *avctx, diff --git a/libavcodec/options_table.h b/libavcodec/options_table.h index 7a70fa7b6c..33f1bce887 100644 --- a/libavcodec/options_table.h +++ b/libavcodec/options_table.h @@ -158,6 +158,7 @@ static const AVOption avcodec_options[] = { {"mmx", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, .unit = "dct"}, {"altivec", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, .unit = "dct"}, {"faan", "floating point AAN DCT", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, .unit = "dct"}, +{"neon", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_NEON }, INT_MIN, INT_MAX, V|E, .unit = "dct"}, {"lumi_mask", "compresses bright areas stronger than medium ones", OFFSET(lumi_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E}, {"tcplx_mask", "temporal complexity masking", OFFSET(temporal_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E}, {"scplx_mask", "spatial complexity masking", OFFSET(spatial_cplx_masking), AV_OPT_TYPE_FLOAT, {.dbl = 0 }, -FLT_MAX, FLT_MAX, V|E}, diff --git a/libavcodec/tests/aarch64/dct.c b/libavcodec/tests/aarch64/dct.c index 9e477328d5..e98a887cd5 100644 --- a/libavcodec/tests/aarch64/dct.c +++ b/libavcodec/tests/aarch64/dct.c @@ -19,9 +19,11 @@ #include "config.h" #include "libavutil/cpu.h" +#include "libavcodec/aarch64/fdct.h" #include "libavcodec/aarch64/idct.h" static const struct algo fdct_tab_arch[] = { + { "neon", ff_fdct_neon, FF_IDCT_PERM_NONE, AV_CPU_FLAG_NEON }, { 0 } }; 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