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lavc/llvidencdsp: add R-V V diff_bytes 

diff_bytes_c:      163.0
diff_bytes_rvv_i32: 52.7
This commit is contained in:
Rémi Denis-Courmont 2023-11-19 21:55:58 +02:00
parent 0183c2c830
commit 0fa421c8f1
5 changed files with 82 additions and 1 deletions
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4
libavcodec/lossless_videoencdsp.c
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@ -94,7 +94,9 @@ av_cold void ff_llvidencdsp_init(LLVidEncDSPContext *c)
c->sub_median_pred = sub_median_pred_c;
c->sub_left_predict = sub_left_predict_c;
#if ARCH_X86
#if ARCH_RISCV
ff_llvidencdsp_init_riscv(c);
#elif ARCH_X86
ff_llvidencdsp_init_x86(c);
#endif
}

1
libavcodec/lossless_videoencdsp.h
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@ -40,6 +40,7 @@ typedef struct LLVidEncDSPContext {
} LLVidEncDSPContext;
void ff_llvidencdsp_init(LLVidEncDSPContext *c);
void ff_llvidencdsp_init_riscv(LLVidEncDSPContext *c);
void ff_llvidencdsp_init_x86(LLVidEncDSPContext *c);
#endif /* AVCODEC_LOSSLESS_VIDEOENCDSP_H */

2
libavcodec/riscv/Makefile
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@ -30,6 +30,8 @@ OBJS-$(CONFIG_LLAUDDSP) += riscv/llauddsp_init.o
RVV-OBJS-$(CONFIG_LLAUDDSP) += riscv/llauddsp_rvv.o
OBJS-$(CONFIG_LLVIDDSP) += riscv/llviddsp_init.o
RVV-OBJS-$(CONFIG_LLVIDDSP) += riscv/llviddsp_rvv.o
OBJS-$(CONFIG_LLVIDENCDSP) += riscv/llvidencdsp_init.o
RVV-OBJS-$(CONFIG_LLVIDENCDSP) += riscv/llvidencdsp_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 \

39
libavcodec/riscv/llvidencdsp_init.c Normal file
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@ -0,0 +1,39 @@
/*
* Copyright © 2023 Rémi Denis-Courmont.
*
* 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 "libavcodec/lossless_videoencdsp.h"
void ff_llvidenc_diff_bytes_rvv(uint8_t *dst, const uint8_t *src1,
const uint8_t *src2, intptr_t w);
av_cold void ff_llvidencdsp_init_riscv(LLVidEncDSPContext *c)
{
#if HAVE_RVV
int flags = av_get_cpu_flags();
if (flags & AV_CPU_FLAG_RVV_I32) {
c->diff_bytes = ff_llvidenc_diff_bytes_rvv;
}
#endif
}

37
libavcodec/riscv/llvidencdsp_rvv.S Normal file
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@ -0,0 +1,37 @@
/*
* Copyright © 2023 Rémi Denis-Courmont.
*
* 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_llvidenc_diff_bytes_rvv, zve32x
1:
vsetvli t0, a3, e8, m8, ta, ma
vle8.v v0, (a1)
sub a3, a3, t0
vle8.v v8, (a2)
add a1, t0, a1
vsub.vv v8, v0, v8
add a2, t0, a2
vse8.v v8, (a0)
add a0, t0, a0
bnez a3, 1b
ret
endfunc