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lavc/aacencdsp: R-V V abs_pow34

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C908:
abs_pow34_c: 535.5
abs_pow34_rvv_f32: 337.2

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
This commit is contained in:
sunyuechi 2023-11-28 20:14:14 +08:00 committed by Rémi Denis-Courmont
parent 1c3620b2bb
commit 98596f90f4
5 changed files with 86 additions and 1 deletions
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4
libavcodec/aacenc.c
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@ -1440,7 +1440,9 @@ void ff_aac_dsp_init(AACEncContext *s){
s->abs_pow34 = abs_pow34_v;
s->quant_bands = quantize_bands;
#if ARCH_X86
#if ARCH_RISCV
ff_aac_dsp_init_riscv(s);
#elif ARCH_X86
ff_aac_dsp_init_x86(s);
#endif

1
libavcodec/aacenc.h
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@ -155,6 +155,7 @@ typedef struct AACEncContext {
} AACEncContext;
void ff_aac_dsp_init(AACEncContext *s);
void ff_aac_dsp_init_riscv(AACEncContext *s);
void ff_aac_dsp_init_x86(AACEncContext *s);
void ff_aac_coder_init_mips(AACEncContext *c);
void ff_quantize_band_cost_cache_init(struct AACEncContext *s);

2
libavcodec/riscv/Makefile
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@ -1,5 +1,7 @@
OBJS-$(CONFIG_AAC_DECODER) += riscv/aacpsdsp_init.o riscv/sbrdsp_init.o
RVV-OBJS-$(CONFIG_AAC_DECODER) += riscv/aacpsdsp_rvv.o riscv/sbrdsp_rvv.o
OBJS-$(CONFIG_AAC_ENCODER) += riscv/aacencdsp_init.o
RVV-OBJS-$(CONFIG_AAC_ENCODER) += riscv/aacencdsp_rvv.o
OBJS-$(CONFIG_AC3DSP) += riscv/ac3dsp_init.o
RV-OBJS-$(CONFIG_AC3DSP) += riscv/ac3dsp_rvb.o
RVV-OBJS-$(CONFIG_AC3DSP) += riscv/ac3dsp_rvv.o

42
libavcodec/riscv/aacencdsp_init.c Normal file
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@ -0,0 +1,42 @@
/*
* AAC encoder assembly optimizations
* Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS).
*
* 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 "config.h"
#include "libavutil/attributes.h"
#include "libavutil/float_dsp.h"
#include "libavutil/cpu.h"
#include "libavcodec/aacenc.h"
void ff_abs_pow34_rvv(float *out, const float *in, const int size);
av_cold void ff_aac_dsp_init_riscv(AACEncContext *s)
{
#if HAVE_RVV
int flags = av_get_cpu_flags();
if (flags & AV_CPU_FLAG_RVV_F32) {
if (flags & AV_CPU_FLAG_RVB_ADDR) {
s->abs_pow34 = ff_abs_pow34_rvv;
}
}
#endif
}

38
libavcodec/riscv/aacencdsp_rvv.S Normal file
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@ -0,0 +1,38 @@
/*
* Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS).
*
* 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/riscv/asm.S"
func ff_abs_pow34_rvv, zve32f
1:
vsetvli t0, a2, e32, m8, ta, ma
sub a2, a2, t0
vle32.v v0, (a1)
sh2add a1, t0, a1
vfabs.v v0, v0
vfsqrt.v v8, v0
vfmul.vv v8, v8, v0
vfsqrt.v v8, v8
vse32.v v8, (a0)
sh2add a0, t0, a0
bnez a2, 1b
ret
endfunc