Files
FFmpeg/libavcodec/riscv/llvidencdsp_init.c
Rémi Denis-Courmont 71db4f3cc1 lavc/llvidencdsp: R-V V sub_median_pred
SpacemiT X60:
sub_median_pred_c:                                  297862.8 ( 1.00x)
sub_median_pred_rvb_b:                              101992.2 ( 2.92x)
sub_median_pred_rvv_i32:                              4820.0 (61.80x)
2025-12-14 10:33:40 +02:00

59 lines
2.2 KiB
C

/*
* 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"
#include "libavcodec/mathops.h"
#include <sys/param.h>
void ff_llvidenc_sub_median_pred_rvb(uint8_t *dst, const uint8_t *src1,
const uint8_t *src2, intptr_t w,
int *left, int *left_top);
void ff_llvidenc_diff_bytes_rvv(uint8_t *dst, const uint8_t *src1,
const uint8_t *src2, intptr_t w);
void ff_llvidenc_sub_median_pred_rvv(uint8_t *dst, const uint8_t *src1,
const uint8_t *src2, intptr_t width,
int *left, int *left_top);
void ff_llvidenc_sub_left_predict_rvv(uint8_t *dst, const uint8_t *src,
ptrdiff_t stride, ptrdiff_t width,
int height);
av_cold void ff_llvidencdsp_init_riscv(LLVidEncDSPContext *c)
{
#if HAVE_RV
int flags = av_get_cpu_flags();
if (flags & AV_CPU_FLAG_RVB_BASIC)
c->sub_median_pred = ff_llvidenc_sub_median_pred_rvb;
#if HAVE_RVV
if (flags & AV_CPU_FLAG_RVV_I32) {
c->diff_bytes = ff_llvidenc_diff_bytes_rvv;
c->sub_median_pred = ff_llvidenc_sub_median_pred_rvv;
c->sub_left_predict = ff_llvidenc_sub_left_predict_rvv;
}
#endif
#endif
}