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Code Issues Releases Activity

lavc/me_cmp: R-V V pix_abs

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C908:
pix_abs_0_0_c: 534.0
pix_abs_0_0_rvv_i32: 136.2
pix_abs_1_0_c: 287.7
pix_abs_1_0_rvv_i32: 125.2
sad_0_c: 534.0
sad_0_rvv_i32: 136.2
sad_1_c: 287.7
sad_1_rvv_i32: 125.2

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
This commit is contained in:
sunyuechi 2024-02-03 10:58:13 +08:00 committed by Rémi Denis-Courmont
parent e9cc9e492f
commit b41e115dde
5 changed files with 118 additions and 0 deletions
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2
libavcodec/me_cmp.c
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@ -1064,6 +1064,8 @@ av_cold void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)
ff_me_cmp_init_arm(c, avctx);
#elif ARCH_PPC
ff_me_cmp_init_ppc(c, avctx);
#elif ARCH_RISCV
ff_me_cmp_init_riscv(c, avctx);
#elif ARCH_X86
ff_me_cmp_init_x86(c, avctx);
#elif ARCH_MIPS

1
libavcodec/me_cmp.h
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@ -86,6 +86,7 @@ void ff_me_cmp_init_aarch64(MECmpContext *c, AVCodecContext *avctx);
void ff_me_cmp_init_alpha(MECmpContext *c, AVCodecContext *avctx);
void ff_me_cmp_init_arm(MECmpContext *c, AVCodecContext *avctx);
void ff_me_cmp_init_ppc(MECmpContext *c, AVCodecContext *avctx);
void ff_me_cmp_init_riscv(MECmpContext *c, AVCodecContext *avctx);
void ff_me_cmp_init_x86(MECmpContext *c, AVCodecContext *avctx);
void ff_me_cmp_init_mips(MECmpContext *c, AVCodecContext *avctx);

2
libavcodec/riscv/Makefile
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@ -39,6 +39,8 @@ OBJS-$(CONFIG_LLVIDENCDSP) += riscv/llvidencdsp_init.o
RVV-OBJS-$(CONFIG_LLVIDENCDSP) += riscv/llvidencdsp_rvv.o
OBJS-$(CONFIG_LPC) += riscv/lpc_init.o
RVV-OBJS-$(CONFIG_LPC) += riscv/lpc_rvv.o
OBJS-$(CONFIG_ME_CMP) += riscv/me_cmp_init.o
RVV-OBJS-$(CONFIG_ME_CMP) += riscv/me_cmp_rvv.o
OBJS-$(CONFIG_OPUS_DECODER) += riscv/opusdsp_init.o
RVV-OBJS-$(CONFIG_OPUS_DECODER) += riscv/opusdsp_rvv.o
OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_init.o

46
libavcodec/riscv/me_cmp_init.c Normal file
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@ -0,0 +1,46 @@
/*
* 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/me_cmp.h"
#include "libavcodec/mpegvideo.h"
int ff_pix_abs16_rvv(MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2,
ptrdiff_t stride, int h);
int ff_pix_abs8_rvv(MpegEncContext *v, const uint8_t *pix1, const uint8_t *pix2,
ptrdiff_t stride, int h);
av_cold void ff_me_cmp_init_riscv(MECmpContext *c, AVCodecContext *avctx)
{
#if HAVE_RVV
int flags = av_get_cpu_flags();
if (flags & AV_CPU_FLAG_RVV_I32 && ff_get_rv_vlenb() >= 16) {
c->pix_abs[0][0] = ff_pix_abs16_rvv;
c->sad[0] = ff_pix_abs16_rvv;
c->pix_abs[1][0] = ff_pix_abs8_rvv;
c->sad[1] = ff_pix_abs8_rvv;
}
#endif
}

67
libavcodec/riscv/me_cmp_rvv.S Normal file
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@ -0,0 +1,67 @@
/*
* 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 pix_abs_ret
vsetivli zero, 1, e32, m1, ta, ma
vmv.x.s a0, v0
ret
.endm
func ff_pix_abs16_rvv, zve32x
vsetivli zero, 1, e32, m1, ta, ma
vmv.s.x v0, zero
1:
vsetivli zero, 16, e8, m1, tu, ma
vle8.v v4, (a1)
vle8.v v12, (a2)
addi a4, a4, -1
vwsubu.vv v16, v4, v12
add a1, a1, a3
vwsubu.vv v20, v12, v4
vsetvli zero, zero, e16, m2, tu, ma
vmax.vv v16, v16, v20
add a2, a2, a3
vwredsum.vs v0, v16, v0
bnez a4, 1b
pix_abs_ret
endfunc
func ff_pix_abs8_rvv, zve32x
vsetivli zero, 1, e32, m1, ta, ma
vmv.s.x v0, zero
1:
vsetivli zero, 8, e8, mf2, tu, ma
vle8.v v4, (a1)
vle8.v v12, (a2)
addi a4, a4, -1
vwsubu.vv v16, v4, v12
add a1, a1, a3
vwsubu.vv v20, v12, v4
vsetvli zero, zero, e16, m1, tu, ma
vmax.vv v16, v16, v20
add a2, a2, a3
vwredsum.vs v0, v16, v0
bnez a4, 1b
pix_abs_ret
endfunc