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libavcodec
aarch64
mpegaudiodsp_init.c
Go to the documentation of this file.
1
/*
2
* This file is part of FFmpeg.
3
*
4
* FFmpeg is free software; you can redistribute it and/or
5
* modify it under the terms of the GNU Lesser General Public
6
* License as published by the Free Software Foundation; either
7
* version 2.1 of the License, or (at your option) any later version.
8
*
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* FFmpeg is distributed in the hope that it will be useful,
10
* but WITHOUT ANY WARRANTY; without even the implied warranty of
11
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12
* Lesser General Public License for more details.
13
*
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* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
18
19
#include <stddef.h>
20
#include <stdint.h>
21
22
#include "
libavutil/attributes.h
"
23
#include "
libavutil/aarch64/cpu.h
"
24
#include "
libavcodec/mpegaudiodsp.h
"
25
#include "config.h"
26
27
void
ff_mpadsp_apply_window_fixed_neon
(
int32_t
*synth_buf,
int32_t
*
window
,
28
int
*
dither
, int16_t *
samples
, ptrdiff_t incr);
29
void
ff_mpadsp_apply_window_float_neon
(
float
*synth_buf,
float
*
window
,
30
int
*
dither
,
float
*
samples
, ptrdiff_t incr);
31
32
av_cold
void
ff_mpadsp_init_aarch64
(
MPADSPContext
*
s
)
33
{
34
int
cpu_flags
=
av_get_cpu_flags
();
35
36
if
(
have_neon
(
cpu_flags
)) {
37
s
->apply_window_fixed =
ff_mpadsp_apply_window_fixed_neon
;
38
s
->apply_window_float =
ff_mpadsp_apply_window_float_neon
;
39
}
40
}
ff_mpadsp_apply_window_fixed_neon
void ff_mpadsp_apply_window_fixed_neon(int32_t *synth_buf, int32_t *window, int *dither, int16_t *samples, ptrdiff_t incr)
MPADSPContext
Definition:
mpegaudiodsp.h:27
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:98
cpu_flags
static atomic_int cpu_flags
Definition:
cpu.c:50
window
static SDL_Window * window
Definition:
ffplay.c:364
av_cold
#define av_cold
Definition:
attributes.h:90
s
#define s(width, name)
Definition:
cbs_vp9.c:257
ff_mpadsp_apply_window_float_neon
void ff_mpadsp_apply_window_float_neon(float *synth_buf, float *window, int *dither, float *samples, ptrdiff_t incr)
have_neon
#define have_neon(flags)
Definition:
cpu.h:26
attributes.h
ff_mpadsp_init_aarch64
av_cold void ff_mpadsp_init_aarch64(MPADSPContext *s)
Definition:
mpegaudiodsp_init.c:32
samples
Filter the word “frame” indicates either a video frame or a group of audio samples
Definition:
filter_design.txt:8
mpegaudiodsp.h
int32_t
int32_t
Definition:
audioconvert.c:56
cpu.h
dither
static const uint8_t dither[8][8]
Definition:
vf_fspp.c:58
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1.8.17