1 /*
2  * audio resampling
3  * Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 /**
23  * @file
24  * audio resampling
25  * @author Michael Niedermayer <michaelni@gmx.at>
26  */
27 
28 #include "resample.h"
29 
30 #define TEMPLATE_RESAMPLE_S16
31 #include "resample_template.c"
32 #undef TEMPLATE_RESAMPLE_S16
33 
34 #define TEMPLATE_RESAMPLE_S32
35 #include "resample_template.c"
36 #undef TEMPLATE_RESAMPLE_S32
37 
38 #define TEMPLATE_RESAMPLE_FLT
39 #include "resample_template.c"
40 #undef TEMPLATE_RESAMPLE_FLT
41 
42 #define TEMPLATE_RESAMPLE_DBL
43 #include "resample_template.c"
44 #undef TEMPLATE_RESAMPLE_DBL
45 
swri_resample_dsp_init(ResampleContext * c)46 void swri_resample_dsp_init(ResampleContext *c)
47 {
48     switch(c->format){
49     case AV_SAMPLE_FMT_S16P:
50         c->dsp.resample_one = resample_one_int16;
51         c->dsp.resample     = c->linear ? resample_linear_int16 : resample_common_int16;
52         break;
53     case AV_SAMPLE_FMT_S32P:
54         c->dsp.resample_one = resample_one_int32;
55         c->dsp.resample     = c->linear ? resample_linear_int32 : resample_common_int32;
56         break;
57     case AV_SAMPLE_FMT_FLTP:
58         c->dsp.resample_one = resample_one_float;
59         c->dsp.resample     = c->linear ? resample_linear_float : resample_common_float;
60         break;
61     case AV_SAMPLE_FMT_DBLP:
62         c->dsp.resample_one = resample_one_double;
63         c->dsp.resample     = c->linear ? resample_linear_double : resample_common_double;
64         break;
65     }
66 
67     if (ARCH_X86) swri_resample_dsp_x86_init(c);
68 }
69