Libav
mdct_fixed_init_arm.c
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1 /*
2  * This file is part of Libav.
3  *
4  * Libav 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  *
9  * Libav 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  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with Libav; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "libavutil/attributes.h"
20 #include "libavutil/cpu.h"
21 #include "libavutil/arm/cpu.h"
22 
23 #define FFT_FLOAT 0
24 #include "libavcodec/fft.h"
25 
28 
30 {
31  int cpu_flags = av_get_cpu_flags();
32 
33  if (have_neon(cpu_flags)) {
34  if (!s->inverse && s->nbits >= 3) {
38  }
39  }
40 }
float FFTDouble
Definition: fft.h:39
Macro definitions for various function/variable attributes.
#define av_cold
Definition: attributes.h:66
void ff_mdct_fixed_calc_neon(FFTContext *s, FFTSample *o, const FFTSample *i)
void(* mdct_calcw)(struct FFTContext *s, FFTDouble *output, const FFTSample *input)
Definition: fft.h:95
void(* mdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input)
Definition: fft.h:94
float FFTSample
Definition: avfft.h:35
Definition: fft.h:73
#define have_neon(flags)
Definition: cpu.h:27
void ff_mdct_fixed_calcw_neon(FFTContext *s, FFTDouble *o, const FFTSample *i)
int nbits
Definition: fft.h:74
int inverse
Definition: fft.h:75
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:47
av_cold void ff_mdct_fixed_init_arm(FFTContext *s)
enum mdct_permutation_type mdct_permutation
Definition: fft.h:97