fft_fixed_init_arm.c
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1 /*
2  * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
3  *
4  * This file is part of Libav.
5  *
6  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "libavutil/arm/cpu.h"
22 
23 #define CONFIG_FFT_FLOAT 0
24 #include "libavcodec/fft.h"
25 
29 
31 {
33 
34  if (have_neon(cpu_flags)) {
37 
38 #if CONFIG_MDCT
39  if (!s->inverse && s->nbits >= 3) {
43  }
44 #endif
45  }
46 }
int mdct_permutation
Definition: fft.h:89
float FFTDouble
Definition: fft.h:39
void(* mdct_calc)(struct FFTContext *s, FFTSample *output, const FFTSample *input)
Definition: fft.h:83
void ff_mdct_fixed_calcw_neon(FFTContext *s, FFTDouble *o, const FFTSample *i)
void ff_fft_fixed_calc_neon(FFTContext *s, FFTComplex *z)
void ff_mdct_fixed_calc_neon(FFTContext *s, FFTSample *o, const FFTSample *i)
av_cold void ff_fft_fixed_init_arm(FFTContext *s)
float FFTSample
Definition: avfft.h:35
Definition: fft.h:62
int nbits
Definition: fft.h:63
int inverse
Definition: fft.h:64
#define FF_MDCT_PERM_INTERLEAVE
Definition: fft.h:91
int fft_permutation
Definition: fft.h:85
static int cpu_flags
Definition: dct-test.c:76
#define FF_FFT_PERM_SWAP_LSBS
Definition: fft.h:87
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:25
#define have_neon(flags)
Definition: cpu.h:30
void(* fft_calc)(struct FFTContext *s, FFTComplex *z)
Do a complex FFT with the parameters defined in ff_fft_init().
Definition: fft.h:80
void(* mdct_calcw)(struct FFTContext *s, FFTDouble *output, const FFTSample *input)
Definition: fft.h:84