audio_convert_init.c 1.96 KB
Newer Older
1
/*
2
 * This file is part of FFmpeg.
3
 *
4
 * FFmpeg is free software; you can redistribute it and/or
5 6 7 8
 * 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.
 *
9
 * FFmpeg is distributed in the hope that it will be useful,
10 11 12 13 14
 * 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
15
 * License along with FFmpeg; if not, write to the Free Software
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <stdint.h>

#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/aarch64/cpu.h"
#include "libavutil/samplefmt.h"
#include "libavresample/audio_convert.h"

void ff_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len);
void ff_conv_fltp_to_s16_neon(int16_t *dst, float *const *src,
                              int len, int channels);
void ff_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src,
                                  int len, int channels);

av_cold void ff_audio_convert_init_aarch64(AudioConvert *ac)
{
    int cpu_flags = av_get_cpu_flags();

    if (have_neon(cpu_flags)) {
        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT,
                                  0, 16, 8, "NEON",
                                  ff_conv_flt_to_s16_neon);
        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
                                  2, 16, 8, "NEON",
                                  ff_conv_fltp_to_s16_2ch_neon);
        ff_audio_convert_set_func(ac, AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLTP,
                                  0, 16, 8, "NEON",
                                  ff_conv_fltp_to_s16_neon);
    }
}