FFmpeg
libavcodec
x86
g722dsp_init.c
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2014 James Almer
3
*
4
* This file is part of FFmpeg.
5
*
6
* FFmpeg is free software; you can redistribute it and/or
7
* modify it under the terms of the GNU Lesser General Public
8
* License as published by the Free Software Foundation; either
9
* version 2.1 of the License, or (at your option) any later version.
10
*
11
* FFmpeg is distributed in the hope that it will be useful,
12
* but WITHOUT ANY WARRANTY; without even the implied warranty of
13
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14
* Lesser General Public License for more details.
15
*
16
* You should have received a copy of the GNU Lesser General Public
17
* License along with FFmpeg; if not, write to the Free Software
18
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
*/
20
21
#include <stdint.h>
22
23
#include "
libavutil/attributes.h
"
24
#include "
libavutil/x86/cpu.h
"
25
#include "
libavcodec/g722dsp.h
"
26
27
void
ff_g722_apply_qmf_sse2
(
const
int16_t *prev_samples,
int
xout[2]);
28
29
av_cold
void
ff_g722dsp_init_x86
(
G722DSPContext
*dsp)
30
{
31
int
cpu_flags
=
av_get_cpu_flags
();
32
33
if
(
EXTERNAL_SSE2
(
cpu_flags
))
34
dsp->
apply_qmf
=
ff_g722_apply_qmf_sse2
;
35
}
cpu.h
G722DSPContext
Definition:
g722dsp.h:26
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:103
cpu_flags
static atomic_int cpu_flags
Definition:
cpu.c:52
av_cold
#define av_cold
Definition:
attributes.h:90
ff_g722dsp_init_x86
av_cold void ff_g722dsp_init_x86(G722DSPContext *dsp)
Definition:
g722dsp_init.c:29
G722DSPContext::apply_qmf
void(* apply_qmf)(const int16_t *prev_samples, int xout[2])
Definition:
g722dsp.h:27
ff_g722_apply_qmf_sse2
void ff_g722_apply_qmf_sse2(const int16_t *prev_samples, int xout[2])
attributes.h
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition:
cpu.h:59
g722dsp.h
Generated on Thu Sep 26 2024 23:15:18 for FFmpeg by
1.8.17