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Diffstat (limited to 'lib/rbcodec/codecs/libopus/mapping_matrix.h')
-rw-r--r-- | lib/rbcodec/codecs/libopus/mapping_matrix.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/lib/rbcodec/codecs/libopus/mapping_matrix.h b/lib/rbcodec/codecs/libopus/mapping_matrix.h new file mode 100644 index 0000000000..9c20483e7a --- /dev/null +++ b/lib/rbcodec/codecs/libopus/mapping_matrix.h | |||
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1 | /* Copyright (c) 2017 Google Inc. | ||
2 | Written by Andrew Allen */ | ||
3 | /* | ||
4 | Redistribution and use in source and binary forms, with or without | ||
5 | modification, are permitted provided that the following conditions | ||
6 | are met: | ||
7 | |||
8 | - Redistributions of source code must retain the above copyright | ||
9 | notice, this list of conditions and the following disclaimer. | ||
10 | |||
11 | - Redistributions in binary form must reproduce the above copyright | ||
12 | notice, this list of conditions and the following disclaimer in the | ||
13 | documentation and/or other materials provided with the distribution. | ||
14 | |||
15 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
16 | ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
17 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
18 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER | ||
19 | OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
20 | EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
21 | PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
22 | PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
23 | LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
24 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
25 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
26 | */ | ||
27 | |||
28 | /** | ||
29 | * @file mapping_matrix.h | ||
30 | * @brief Opus reference implementation mapping matrix API | ||
31 | */ | ||
32 | |||
33 | #ifndef MAPPING_MATRIX_H | ||
34 | #define MAPPING_MATRIX_H | ||
35 | |||
36 | #include "opus_types.h" | ||
37 | #include "opus_projection.h" | ||
38 | |||
39 | #ifdef __cplusplus | ||
40 | extern "C" { | ||
41 | #endif | ||
42 | |||
43 | typedef struct MappingMatrix | ||
44 | { | ||
45 | int rows; /* number of channels outputted from matrix. */ | ||
46 | int cols; /* number of channels inputted to matrix. */ | ||
47 | int gain; /* in dB. S7.8-format. */ | ||
48 | /* Matrix cell data goes here using col-wise ordering. */ | ||
49 | } MappingMatrix; | ||
50 | |||
51 | opus_int32 mapping_matrix_get_size(int rows, int cols); | ||
52 | |||
53 | opus_int16 *mapping_matrix_get_data(const MappingMatrix *matrix); | ||
54 | |||
55 | void mapping_matrix_init( | ||
56 | MappingMatrix * const st, | ||
57 | int rows, | ||
58 | int cols, | ||
59 | int gain, | ||
60 | const opus_int16 *data, | ||
61 | opus_int32 data_size | ||
62 | ); | ||
63 | |||
64 | #ifndef DISABLE_FLOAT_API | ||
65 | void mapping_matrix_multiply_channel_in_float( | ||
66 | const MappingMatrix *matrix, | ||
67 | const float *input, | ||
68 | int input_rows, | ||
69 | opus_val16 *output, | ||
70 | int output_row, | ||
71 | int output_rows, | ||
72 | int frame_size | ||
73 | ); | ||
74 | |||
75 | void mapping_matrix_multiply_channel_out_float( | ||
76 | const MappingMatrix *matrix, | ||
77 | const opus_val16 *input, | ||
78 | int input_row, | ||
79 | int input_rows, | ||
80 | float *output, | ||
81 | int output_rows, | ||
82 | int frame_size | ||
83 | ); | ||
84 | #endif /* DISABLE_FLOAT_API */ | ||
85 | |||
86 | void mapping_matrix_multiply_channel_in_short( | ||
87 | const MappingMatrix *matrix, | ||
88 | const opus_int16 *input, | ||
89 | int input_rows, | ||
90 | opus_val16 *output, | ||
91 | int output_row, | ||
92 | int output_rows, | ||
93 | int frame_size | ||
94 | ); | ||
95 | |||
96 | void mapping_matrix_multiply_channel_out_short( | ||
97 | const MappingMatrix *matrix, | ||
98 | const opus_val16 *input, | ||
99 | int input_row, | ||
100 | int input_rows, | ||
101 | opus_int16 *output, | ||
102 | int output_rows, | ||
103 | int frame_size | ||
104 | ); | ||
105 | |||
106 | /* Pre-computed mixing and demixing matrices for 1st to 3rd-order ambisonics. | ||
107 | * foa: first-order ambisonics | ||
108 | * soa: second-order ambisonics | ||
109 | * toa: third-order ambisonics | ||
110 | */ | ||
111 | extern const MappingMatrix mapping_matrix_foa_mixing; | ||
112 | extern const opus_int16 mapping_matrix_foa_mixing_data[36]; | ||
113 | |||
114 | extern const MappingMatrix mapping_matrix_soa_mixing; | ||
115 | extern const opus_int16 mapping_matrix_soa_mixing_data[121]; | ||
116 | |||
117 | extern const MappingMatrix mapping_matrix_toa_mixing; | ||
118 | extern const opus_int16 mapping_matrix_toa_mixing_data[324]; | ||
119 | |||
120 | extern const MappingMatrix mapping_matrix_foa_demixing; | ||
121 | extern const opus_int16 mapping_matrix_foa_demixing_data[36]; | ||
122 | |||
123 | extern const MappingMatrix mapping_matrix_soa_demixing; | ||
124 | extern const opus_int16 mapping_matrix_soa_demixing_data[121]; | ||
125 | |||
126 | extern const MappingMatrix mapping_matrix_toa_demixing; | ||
127 | extern const opus_int16 mapping_matrix_toa_demixing_data[324]; | ||
128 | |||
129 | #ifdef __cplusplus | ||
130 | } | ||
131 | #endif | ||
132 | |||
133 | #endif /* MAPPING_MATRIX_H */ | ||