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lavc/vp8dsp: R-V V vp8_idct_dc_add

Browse Source 
c908:
vp8_idct_dc_add_c: 102.2
vp8_idct_dc_add_rvv_i32: 42.0

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
This commit is contained in:
sunyuechi 2024-02-02 12:49:07 +08:00 committed by Rémi Denis-Courmont
parent 89189dd9e7
commit c12053cefc
5 changed files with 88 additions and 0 deletions
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2
libavcodec/riscv/Makefile
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@ -54,5 +54,7 @@ OBJS-$(CONFIG_UTVIDEO_DECODER) += riscv/utvideodsp_init.o
RVV-OBJS-$(CONFIG_UTVIDEO_DECODER) += riscv/utvideodsp_rvv.o
OBJS-$(CONFIG_VC1DSP) += riscv/vc1dsp_init.o
RVV-OBJS-$(CONFIG_VC1DSP) += riscv/vc1dsp_rvv.o
OBJS-$(CONFIG_VP8DSP) += riscv/vp8dsp_init.o
RVV-OBJS-$(CONFIG_VP8DSP) += riscv/vp8dsp_rvv.o
OBJS-$(CONFIG_VORBIS_DECODER) += riscv/vorbisdsp_init.o
RVV-OBJS-$(CONFIG_VORBIS_DECODER) += riscv/vorbisdsp_rvv.o

39
libavcodec/riscv/vp8dsp_init.c Normal file
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@ -0,0 +1,39 @@
/*
* Copyright (c) 2024 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/cpu.h"
#include "libavutil/riscv/cpu.h"
#include "libavcodec/vp8dsp.h"
void ff_vp8_idct_dc_add_rvv(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
av_cold void ff_vp8dsp_init_riscv(VP8DSPContext *c)
{
#if HAVE_RVV
int flags = av_get_cpu_flags();
if (flags & AV_CPU_FLAG_RVV_I32 && ff_get_rv_vlenb() >= 16) {
c->vp8_idct_dc_add = ff_vp8_idct_dc_add_rvv;
}
#endif
}

44
libavcodec/riscv/vp8dsp_rvv.S Normal file
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@ -0,0 +1,44 @@
/*
* Copyright (c) 2024 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"
.macro vp8_idct_dc_add
vlse32.v v0, (a0), a2
lh a5, 0(a1)
sh zero, 0(a1)
addi a5, a5, 4
srai t1, a5, 3
vsetivli zero, 4*4, e16, m2, ta, ma
vzext.vf2 v2, v0
vadd.vx v2, v2, t1
vmax.vx v2, v2, zero
vsetvli zero, zero, e8, m1, ta, ma
vnclipu.wi v0, v2, 0
vsetivli zero, 4, e8, mf4, ta, ma
vsse32.v v0, (a0), a2
.endm
func ff_vp8_idct_dc_add_rvv, zve32x
vsetivli zero, 4, e8, mf4, ta, ma
vp8_idct_dc_add
ret
endfunc

2
libavcodec/vp8dsp.c
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@ -742,6 +742,8 @@ av_cold void ff_vp8dsp_init(VP8DSPContext *dsp)
ff_vp8dsp_init_aarch64(dsp);
#elif ARCH_ARM
ff_vp8dsp_init_arm(dsp);
#elif ARCH_RISCV
ff_vp8dsp_init_riscv(dsp);
#elif ARCH_X86
ff_vp8dsp_init_x86(dsp);
#elif ARCH_MIPS

1
libavcodec/vp8dsp.h
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@ -92,6 +92,7 @@ void ff_vp78dsp_init_x86(VP8DSPContext *c);
void ff_vp8dsp_init(VP8DSPContext *c);
void ff_vp8dsp_init_aarch64(VP8DSPContext *c);
void ff_vp8dsp_init_arm(VP8DSPContext *c);
void ff_vp8dsp_init_riscv(VP8DSPContext *c);
void ff_vp8dsp_init_x86(VP8DSPContext *c);
void ff_vp8dsp_init_mips(VP8DSPContext *c);
void ff_vp8dsp_init_loongarch(VP8DSPContext *c);