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3719602c PC |
1 | /* Copyright (C) 2010-2020 The RetroArch team |
2 | * | |
3 | * --------------------------------------------------------------------------------------- | |
4 | * The following license statement only applies to this file (dsp_filter.h). | |
5 | * --------------------------------------------------------------------------------------- | |
6 | * | |
7 | * Permission is hereby granted, free of charge, | |
8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), | |
9 | * to deal in the Software without restriction, including without limitation the rights to | |
10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, | |
11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, | |
16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | #ifndef __LIBRETRO_SDK_AUDIO_DSP_FILTER_H | |
24 | #define __LIBRETRO_SDK_AUDIO_DSP_FILTER_H | |
25 | ||
26 | #include <retro_common_api.h> | |
27 | ||
28 | RETRO_BEGIN_DECLS | |
29 | ||
30 | typedef struct retro_dsp_filter retro_dsp_filter_t; | |
31 | ||
32 | retro_dsp_filter_t *retro_dsp_filter_new(const char *filter_config, | |
33 | void *string_data, float sample_rate); | |
34 | ||
35 | void retro_dsp_filter_free(retro_dsp_filter_t *dsp); | |
36 | ||
37 | /** | |
38 | * A struct that groups the input and output of a DSP filter. | |
39 | */ | |
40 | struct retro_dsp_data | |
41 | { | |
42 | float *input; | |
43 | unsigned input_frames; | |
44 | ||
45 | /* Set by retro_dsp_filter_process(). */ | |
46 | float *output; | |
47 | unsigned output_frames; | |
48 | }; | |
49 | ||
50 | void retro_dsp_filter_process(retro_dsp_filter_t *dsp, | |
51 | struct retro_dsp_data *data); | |
52 | ||
53 | RETRO_END_DECLS | |
54 | ||
55 | #endif |