fft_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 #include "libavcodec/fft.h"
23 #include "libavcodec/rdft.h"
25 
27 
30 
31 void ff_imdct_half_vfp(FFTContext *s, FFTSample *output, const FFTSample *input);
32 
33 void ff_imdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
34 void ff_imdct_half_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
35 void ff_mdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input);
36 
37 void ff_rdft_calc_neon(struct RDFTContext *s, FFTSample *z);
38 
40  float *synth_buf_ptr, int *synth_buf_offset,
41  float synth_buf2[32], const float window[512],
42  float out[32], const float in[32],
43  float scale);
44 
46  float *synth_buf_ptr, int *synth_buf_offset,
47  float synth_buf2[32], const float window[512],
48  float out[32], const float in[32],
49  float scale);
50 
52 {
54 
55  if (have_vfp(cpu_flags) && !have_vfpv3(cpu_flags)) {
57 #if CONFIG_MDCT
59 #endif
60  }
61 
62  if (have_neon(cpu_flags)) {
65 #if CONFIG_MDCT
70 #endif
71  }
72 }
73 
74 #if CONFIG_RDFT
76 {
78 
79  if (have_neon(cpu_flags))
81 }
82 #endif
83 
84 #if CONFIG_DCA_DECODER
86 {
87  int cpu_flags = av_get_cpu_flags();
88 
89  if (have_vfp(cpu_flags) && !have_vfpv3(cpu_flags))
91  if (have_neon(cpu_flags))
93 }
94 #endif