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lavc/rv34dsp: R-V V rv34_inv_transform_dc

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C908:
rv34_inv_transform_dc_c: 35.5
rv34_inv_transform_dc_rvv_i32: 27.0

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>
This commit is contained in:
sunyuechi
2024-01-31 19:03:20 +08:00
committed by Rémi Denis-Courmont
parent 6728edadde
commit ee08974f90
5 changed files with 77 additions and 0 deletions
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2
libavcodec/riscv/Makefile
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@@ -44,6 +44,8 @@ RVV-OBJS-$(CONFIG_OPUS_DECODER) += riscv/opusdsp_rvv.o
OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_init.o
RV-OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_rvi.o
RVV-OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_rvv.o
OBJS-$(CONFIG_RV34DSP) += riscv/rv34dsp_init.o
RVV-OBJS-$(CONFIG_RV34DSP) += riscv/rv34dsp_rvv.o
OBJS-$(CONFIG_SVQ1_ENCODER) += riscv/svqenc_init.o
RVV-OBJS-$(CONFIG_SVQ1_ENCODER) += riscv/svqenc_rvv.o
OBJS-$(CONFIG_TAK_DECODER) += riscv/takdsp_init.o

39
libavcodec/riscv/rv34dsp_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/rv34dsp.h"
void ff_rv34_inv_transform_dc_rvv(int16_t *block);
av_cold void ff_rv34dsp_init_riscv(RV34DSPContext *c)
{
#if HAVE_RVV
int flags = av_get_cpu_flags();
if (flags & AV_CPU_FLAG_RVV_I32 && ff_get_rv_vlenb() >= 16) {
c->rv34_inv_transform_dc = ff_rv34_inv_transform_dc_rvv;
}
#endif
}

33
libavcodec/riscv/rv34dsp_rvv.S Normal file
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@@ -0,0 +1,33 @@
/*
* 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"
func ff_rv34_inv_transform_dc_rvv, zve32x
lh t1, 0(a0)
li t0, 13 * 13 * 3
mul t2, t0, t1
srai t2, t2, 11
vsetivli zero, 16, e16, m2, ta, ma
vmv.v.x v8, t2
vse16.v v8, (a0)
ret
endfunc

2
libavcodec/rv34dsp.c
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@@ -138,6 +138,8 @@ av_cold void ff_rv34dsp_init(RV34DSPContext *c)
#if ARCH_ARM
ff_rv34dsp_init_arm(c);
#elif ARCH_RISCV
ff_rv34dsp_init_riscv(c);
#elif ARCH_X86
ff_rv34dsp_init_x86(c);
#endif

1
libavcodec/rv34dsp.h
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@@ -79,6 +79,7 @@ void ff_rv34dsp_init(RV34DSPContext *c);
void ff_rv40dsp_init(RV34DSPContext *c);
void ff_rv34dsp_init_arm(RV34DSPContext *c);
void ff_rv34dsp_init_riscv(RV34DSPContext *c);
void ff_rv34dsp_init_x86(RV34DSPContext *c);
void ff_rv40dsp_init_aarch64(RV34DSPContext *c);