1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/*
* This file is part of libswresample.
*
* libswresample 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.
*
* libswresample 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 libswresample; if not, write to the Free Software
* 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 "libswresample/swresample_internal.h"
#include "libswresample/audioconvert.h"
void swri_oldapi_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len);
void swri_oldapi_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src, int len, int channels);
void swri_oldapi_conv_fltp_to_s16_nch_neon(int16_t *dst, float *const *src, int len, int channels);
static void conv_flt_to_s16_neon(uint8_t **dst, const uint8_t **src, int len){
swri_oldapi_conv_flt_to_s16_neon((int16_t*)*dst, (const float*)*src, len);
}
static void conv_fltp_to_s16_2ch_neon(uint8_t **dst, const uint8_t **src, int len){
swri_oldapi_conv_fltp_to_s16_2ch_neon((int16_t*)*dst, (float *const*)src, len, 2);
}
static void conv_fltp_to_s16_nch_neon(uint8_t **dst, const uint8_t **src, int len){
int channels;
for(channels=3; channels<SWR_CH_MAX && src[channels]; channels++)
;
swri_oldapi_conv_fltp_to_s16_nch_neon((int16_t*)*dst, (float *const*)src, len, channels);
}
av_cold void swri_audio_convert_init_aarch64(struct AudioConvert *ac,
enum AVSampleFormat out_fmt,
enum AVSampleFormat in_fmt,
int channels)
{
int cpu_flags = av_get_cpu_flags();
ac->simd_f= NULL;
if (have_neon(cpu_flags)) {
if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLT || out_fmt == AV_SAMPLE_FMT_S16P && in_fmt == AV_SAMPLE_FMT_FLTP)
ac->simd_f = conv_flt_to_s16_neon;
if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels == 2)
ac->simd_f = conv_fltp_to_s16_2ch_neon;
if(out_fmt == AV_SAMPLE_FMT_S16 && in_fmt == AV_SAMPLE_FMT_FLTP && channels > 2)
ac->simd_f = conv_fltp_to_s16_nch_neon;
if(ac->simd_f)
ac->in_simd_align_mask = ac->out_simd_align_mask = 15;
}
}
|
