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1 /*
2  * Copyright (c) 2010 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 "config.h"
22
23 #include "libavutil/arm/cpu.h"
24 #include "libavutil/attributes.h"
25 #include "libavcodec/dcadsp.h"
26
27 void ff_dca_lfe_fir_vfp(float *out, const float *in, const float *coefs,
28                         int decifactor, float scale);
29 void ff_dca_qmf_32_subbands_vfp(float samples_in[32][8], int sb_act,
30                                 SynthFilterContext *synth, FFTContext *imdct,
31                                 float synth_buf_ptr[512],
32                                 int *synth_buf_offset, float synth_buf2[32],
33                                 const float window[512], float *samples_out,
34                                 float raXin[32], float scale);
35 void ff_dca_lfe_fir_neon(float *out, const float *in, const float *coefs,
36                          int decifactor, float scale);
37
38 void ff_synth_filter_float_vfp(FFTContext *imdct,
39                                float *synth_buf_ptr, int *synth_buf_offset,
40                                float synth_buf2[32], const float window[512],
41                                float out[32], const float in[32],
42                                float scale);
43
44 void ff_synth_filter_float_neon(FFTContext *imdct,
45                                 float *synth_buf_ptr, int *synth_buf_offset,
46                                 float synth_buf2[32], const float window[512],
47                                 float out[32], const float in[32],
48                                 float scale);
49
50 av_cold void ff_dcadsp_init_arm(DCADSPContext *s)
51 {
52     int cpu_flags = av_get_cpu_flags();
53
54     if (have_vfp(cpu_flags) && !have_vfpv3(cpu_flags)) {
55         s->lfe_fir = ff_dca_lfe_fir_vfp;
56         s->qmf_32_subbands = ff_dca_qmf_32_subbands_vfp;
57     }
58     if (have_neon(cpu_flags))
59         s->lfe_fir = ff_dca_lfe_fir_neon;
60 }
61
62 av_cold void ff_synth_filter_init_arm(SynthFilterContext *s)
63 {
64     int cpu_flags = av_get_cpu_flags();
65
66     if (have_vfp(cpu_flags) && !have_vfpv3(cpu_flags))
67         s->synth_filter_float = ff_synth_filter_float_vfp;
68     if (have_neon(cpu_flags))
69         s->synth_filter_float = ff_synth_filter_float_neon;
70 }