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157 lines
4.8 KiB
157 lines
4.8 KiB
/* Copyright (c) 2017 Google Inc. |
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Written by Andrew Allen */ |
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/* |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions |
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are met: |
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- Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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- Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER |
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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/** |
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* @file mapping_matrix.h |
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* @brief Opus reference implementation mapping matrix API |
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*/ |
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#ifndef MAPPING_MATRIX_H |
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#define MAPPING_MATRIX_H |
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#include "opus_types.h" |
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#include "opus_projection.h" |
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typedef struct MappingMatrix |
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{ |
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int rows; /* number of channels outputted from matrix. */ |
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int cols; /* number of channels inputted to matrix. */ |
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int gain; /* in dB. S7.8-format. */ |
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/* Matrix cell data goes here using col-wise ordering. */ |
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} MappingMatrix; |
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opus_int32 mapping_matrix_get_size(int rows, int cols); |
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opus_int16 *mapping_matrix_get_data(const MappingMatrix *matrix); |
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void mapping_matrix_init( |
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MappingMatrix * const matrix, |
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int rows, |
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int cols, |
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int gain, |
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const opus_int16 *data, |
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opus_int32 data_size |
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); |
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#ifndef DISABLE_FLOAT_API |
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void mapping_matrix_multiply_channel_in_float( |
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const MappingMatrix *matrix, |
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const float *input, |
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int input_rows, |
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opus_res *output, |
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int output_row, |
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int output_rows, |
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int frame_size |
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); |
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void mapping_matrix_multiply_channel_out_float( |
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const MappingMatrix *matrix, |
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const opus_res *input, |
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int input_row, |
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int input_rows, |
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float *output, |
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int output_rows, |
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int frame_size |
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); |
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#endif /* DISABLE_FLOAT_API */ |
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void mapping_matrix_multiply_channel_in_short( |
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const MappingMatrix *matrix, |
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const opus_int16 *input, |
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int input_rows, |
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opus_res *output, |
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int output_row, |
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int output_rows, |
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int frame_size |
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); |
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void mapping_matrix_multiply_channel_out_short( |
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const MappingMatrix *matrix, |
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const opus_res *input, |
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int input_row, |
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int input_rows, |
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opus_int16 *output, |
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int output_rows, |
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int frame_size |
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); |
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void mapping_matrix_multiply_channel_in_int24( |
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const MappingMatrix *matrix, |
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const opus_int32 *input, |
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int input_rows, |
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opus_res *output, |
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int output_row, |
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int output_rows, |
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int frame_size |
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); |
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void mapping_matrix_multiply_channel_out_int24( |
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const MappingMatrix *matrix, |
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const opus_res *input, |
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int input_row, |
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int input_rows, |
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opus_int32 *output, |
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int output_rows, |
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int frame_size |
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); |
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/* Pre-computed mixing and demixing matrices for 1st to 3rd-order ambisonics. |
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* foa: first-order ambisonics |
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* soa: second-order ambisonics |
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* toa: third-order ambisonics |
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*/ |
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extern const MappingMatrix mapping_matrix_foa_mixing; |
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extern const opus_int16 mapping_matrix_foa_mixing_data[36]; |
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extern const MappingMatrix mapping_matrix_soa_mixing; |
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extern const opus_int16 mapping_matrix_soa_mixing_data[121]; |
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extern const MappingMatrix mapping_matrix_toa_mixing; |
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extern const opus_int16 mapping_matrix_toa_mixing_data[324]; |
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extern const MappingMatrix mapping_matrix_fourthoa_mixing; |
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extern const opus_int16 mapping_matrix_fourthoa_mixing_data[729]; |
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extern const MappingMatrix mapping_matrix_fifthoa_mixing; |
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extern const opus_int16 mapping_matrix_fifthoa_mixing_data[1444]; |
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extern const MappingMatrix mapping_matrix_foa_demixing; |
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extern const opus_int16 mapping_matrix_foa_demixing_data[36]; |
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extern const MappingMatrix mapping_matrix_soa_demixing; |
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extern const opus_int16 mapping_matrix_soa_demixing_data[121]; |
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extern const MappingMatrix mapping_matrix_toa_demixing; |
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extern const opus_int16 mapping_matrix_toa_demixing_data[324]; |
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extern const MappingMatrix mapping_matrix_fourthoa_demixing; |
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extern const opus_int16 mapping_matrix_fourthoa_demixing_data[729]; |
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extern const MappingMatrix mapping_matrix_fifthoa_demixing; |
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extern const opus_int16 mapping_matrix_fifthoa_demixing_data[1444]; |
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#endif /* MAPPING_MATRIX_H */
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