mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-10-18 20:43:26 +00:00
616fdeaea3
There is no known (real) hardware with V and without the complete B extension. B was indeed required in the RISC-V application profile from 2022, earlier than V. There should not be any relevant hardware in the future either. In practice, different R-V Vector optimisations in FFmpeg already depend on every constituent of the B extension anyhow, so it would not work well.
42 lines
1.5 KiB
C
42 lines
1.5 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/huffyuvdsp.h"
|
|
|
|
void ff_add_int16_rvv(uint16_t *dst, const uint16_t *src, unsigned m, int w);
|
|
void ff_add_hfyu_left_pred_bgr32_rvv(uint8_t *dst, const uint8_t *src,
|
|
intptr_t w, uint8_t *left);
|
|
|
|
av_cold void ff_huffyuvdsp_init_riscv(HuffYUVDSPContext *c,
|
|
enum AVPixelFormat pix_fmt)
|
|
{
|
|
#if HAVE_RVV
|
|
int flags = av_get_cpu_flags();
|
|
|
|
if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB)) {
|
|
c->add_int16 = ff_add_int16_rvv;
|
|
c->add_hfyu_left_pred_bgr32 = ff_add_hfyu_left_pred_bgr32_rvv;
|
|
}
|
|
#endif
|
|
}
|