mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-30 11:22:14 +00:00
121fb846b9
This is almost the same story as vp7_idct_add4y. We just have to use strided loads of 2 64-bit elements to account for the different data layout in memory. T-Head C908: vp7_idct_dc_add4uv_c: 7.5 vp7_idct_dc_add4uv_rvv_i64: 2.0 vp8_idct_dc_add4uv_c: 6.2 vp8_idct_dc_add4uv_rvv_i32: 2.2 (before) vp8_idct_dc_add4uv_rvv_i64: 2.0 SpacemiT X60: vp7_idct_dc_add4uv_c: 6.7 vp7_idct_dc_add4uv_rvv_i64: 2.2 vp8_idct_dc_add4uv_c: 5.7 vp8_idct_dc_add4uv_rvv_i32: 2.5 (before) vp8_idct_dc_add4uv_rvv_i64: 2.0
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2024 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 "libavutil/riscv/cpu.h"
|
|
#include "libavcodec/vp8dsp.h"
|
|
|
|
void ff_vp7_luma_dc_wht_rvv(int16_t block[4][4][16], int16_t dc[16]);
|
|
void ff_vp7_idct_add_rvv(uint8_t *dst, int16_t block[16], ptrdiff_t stride);
|
|
void ff_vp78_idct_dc_add_rvv(uint8_t *, int16_t block[16], ptrdiff_t, int dc);
|
|
void ff_vp7_idct_dc_add4y_rvv(uint8_t *dst, int16_t block[4][16], ptrdiff_t);
|
|
void ff_vp7_idct_dc_add4uv_rvv(uint8_t *dst, int16_t block[4][16], ptrdiff_t);
|
|
|
|
static void ff_vp7_idct_dc_add_rvv(uint8_t *dst, int16_t block[16],
|
|
ptrdiff_t stride)
|
|
{
|
|
int dc = (23170 * (23170 * block[0] >> 14) + 0x20000) >> 18;
|
|
|
|
ff_vp78_idct_dc_add_rvv(dst, block, stride, dc);
|
|
}
|
|
|
|
av_cold void ff_vp7dsp_init_riscv(VP8DSPContext *c)
|
|
{
|
|
#if HAVE_RVV
|
|
int flags = av_get_cpu_flags();
|
|
|
|
if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR) &&
|
|
ff_rv_vlen_least(128)) {
|
|
#if __riscv_xlen >= 64
|
|
c->vp8_luma_dc_wht = ff_vp7_luma_dc_wht_rvv;
|
|
c->vp8_idct_add = ff_vp7_idct_add_rvv;
|
|
#endif
|
|
c->vp8_idct_dc_add = ff_vp7_idct_dc_add_rvv;
|
|
c->vp8_idct_dc_add4y = ff_vp7_idct_dc_add4y_rvv;
|
|
if (flags & AV_CPU_FLAG_RVV_I64)
|
|
c->vp8_idct_dc_add4uv = ff_vp7_idct_dc_add4uv_rvv;
|
|
}
|
|
#endif
|
|
}
|