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Diffstat (limited to 'thirdparty/opus/opus_projection_encoder.c')
| -rw-r--r-- | thirdparty/opus/opus_projection_encoder.c | 468 |
1 files changed, 0 insertions, 468 deletions
diff --git a/thirdparty/opus/opus_projection_encoder.c b/thirdparty/opus/opus_projection_encoder.c deleted file mode 100644 index 06fb2d2526..0000000000 --- a/thirdparty/opus/opus_projection_encoder.c +++ /dev/null @@ -1,468 +0,0 @@ -/* Copyright (c) 2017 Google Inc. - Written by Andrew Allen */ -/* - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - - - Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - - - Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER - OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "mathops.h" -#include "os_support.h" -#include "opus_private.h" -#include "opus_defines.h" -#include "opus_projection.h" -#include "opus_multistream.h" -#include "stack_alloc.h" -#include "mapping_matrix.h" - -struct OpusProjectionEncoder -{ - opus_int32 mixing_matrix_size_in_bytes; - opus_int32 demixing_matrix_size_in_bytes; - /* Encoder states go here */ -}; - -#if !defined(DISABLE_FLOAT_API) -static void opus_projection_copy_channel_in_float( - opus_val16 *dst, - int dst_stride, - const void *src, - int src_stride, - int src_channel, - int frame_size, - void *user_data -) -{ - mapping_matrix_multiply_channel_in_float((const MappingMatrix*)user_data, - (const float*)src, src_stride, dst, src_channel, dst_stride, frame_size); -} -#endif - -static void opus_projection_copy_channel_in_short( - opus_val16 *dst, - int dst_stride, - const void *src, - int src_stride, - int src_channel, - int frame_size, - void *user_data -) -{ - mapping_matrix_multiply_channel_in_short((const MappingMatrix*)user_data, - (const opus_int16*)src, src_stride, dst, src_channel, dst_stride, frame_size); -} - -static int get_order_plus_one_from_channels(int channels, int *order_plus_one) -{ - int order_plus_one_; - int acn_channels; - int nondiegetic_channels; - - /* Allowed numbers of channels: - * (1 + n)^2 + 2j, for n = 0...14 and j = 0 or 1. - */ - if (channels < 1 || channels > 227) - return OPUS_BAD_ARG; - - order_plus_one_ = isqrt32(channels); - acn_channels = order_plus_one_ * order_plus_one_; - nondiegetic_channels = channels - acn_channels; - if (nondiegetic_channels != 0 && nondiegetic_channels != 2) - return OPUS_BAD_ARG; - - if (order_plus_one) - *order_plus_one = order_plus_one_; - return OPUS_OK; -} - -static int get_streams_from_channels(int channels, int mapping_family, - int *streams, int *coupled_streams, - int *order_plus_one) -{ - if (mapping_family == 3) - { - if (get_order_plus_one_from_channels(channels, order_plus_one) != OPUS_OK) - return OPUS_BAD_ARG; - if (streams) - *streams = (channels + 1) / 2; - if (coupled_streams) - *coupled_streams = channels / 2; - return OPUS_OK; - } - return OPUS_BAD_ARG; -} - -static MappingMatrix *get_mixing_matrix(OpusProjectionEncoder *st) -{ - /* void* cast avoids clang -Wcast-align warning */ - return (MappingMatrix *)(void*)((char*)st + - align(sizeof(OpusProjectionEncoder))); -} - -static MappingMatrix *get_enc_demixing_matrix(OpusProjectionEncoder *st) -{ - /* void* cast avoids clang -Wcast-align warning */ - return (MappingMatrix *)(void*)((char*)st + - align(sizeof(OpusProjectionEncoder) + - st->mixing_matrix_size_in_bytes)); -} - -static OpusMSEncoder *get_multistream_encoder(OpusProjectionEncoder *st) -{ - /* void* cast avoids clang -Wcast-align warning */ - return (OpusMSEncoder *)(void*)((char*)st + - align(sizeof(OpusProjectionEncoder) + - st->mixing_matrix_size_in_bytes + - st->demixing_matrix_size_in_bytes)); -} - -opus_int32 opus_projection_ambisonics_encoder_get_size(int channels, - int mapping_family) -{ - int nb_streams; - int nb_coupled_streams; - int order_plus_one; - int mixing_matrix_rows, mixing_matrix_cols; - int demixing_matrix_rows, demixing_matrix_cols; - opus_int32 mixing_matrix_size, demixing_matrix_size; - opus_int32 encoder_size; - int ret; - - ret = get_streams_from_channels(channels, mapping_family, &nb_streams, - &nb_coupled_streams, &order_plus_one); - if (ret != OPUS_OK) - return 0; - - if (order_plus_one == 2) - { - mixing_matrix_rows = mapping_matrix_foa_mixing.rows; - mixing_matrix_cols = mapping_matrix_foa_mixing.cols; - demixing_matrix_rows = mapping_matrix_foa_demixing.rows; - demixing_matrix_cols = mapping_matrix_foa_demixing.cols; - } - else if (order_plus_one == 3) - { - mixing_matrix_rows = mapping_matrix_soa_mixing.rows; - mixing_matrix_cols = mapping_matrix_soa_mixing.cols; - demixing_matrix_rows = mapping_matrix_soa_demixing.rows; - demixing_matrix_cols = mapping_matrix_soa_demixing.cols; - } - else if (order_plus_one == 4) - { - mixing_matrix_rows = mapping_matrix_toa_mixing.rows; - mixing_matrix_cols = mapping_matrix_toa_mixing.cols; - demixing_matrix_rows = mapping_matrix_toa_demixing.rows; - demixing_matrix_cols = mapping_matrix_toa_demixing.cols; - } - else - return 0; - - mixing_matrix_size = - mapping_matrix_get_size(mixing_matrix_rows, mixing_matrix_cols); - if (!mixing_matrix_size) - return 0; - - demixing_matrix_size = - mapping_matrix_get_size(demixing_matrix_rows, demixing_matrix_cols); - if (!demixing_matrix_size) - return 0; - - encoder_size = - opus_multistream_encoder_get_size(nb_streams, nb_coupled_streams); - if (!encoder_size) - return 0; - - return align(sizeof(OpusProjectionEncoder)) + - mixing_matrix_size + demixing_matrix_size + encoder_size; -} - -int opus_projection_ambisonics_encoder_init(OpusProjectionEncoder *st, opus_int32 Fs, - int channels, int mapping_family, - int *streams, int *coupled_streams, - int application) -{ - MappingMatrix *mixing_matrix; - MappingMatrix *demixing_matrix; - OpusMSEncoder *ms_encoder; - int i; - int ret; - int order_plus_one; - unsigned char mapping[255]; - - if (streams == NULL || coupled_streams == NULL) { - return OPUS_BAD_ARG; - } - - if (get_streams_from_channels(channels, mapping_family, streams, - coupled_streams, &order_plus_one) != OPUS_OK) - return OPUS_BAD_ARG; - - if (mapping_family == 3) - { - /* Assign mixing matrix based on available pre-computed matrices. */ - mixing_matrix = get_mixing_matrix(st); - if (order_plus_one == 2) - { - mapping_matrix_init(mixing_matrix, mapping_matrix_foa_mixing.rows, - mapping_matrix_foa_mixing.cols, mapping_matrix_foa_mixing.gain, - mapping_matrix_foa_mixing_data, - sizeof(mapping_matrix_foa_mixing_data)); - } - else if (order_plus_one == 3) - { - mapping_matrix_init(mixing_matrix, mapping_matrix_soa_mixing.rows, - mapping_matrix_soa_mixing.cols, mapping_matrix_soa_mixing.gain, - mapping_matrix_soa_mixing_data, - sizeof(mapping_matrix_soa_mixing_data)); - } - else if (order_plus_one == 4) - { - mapping_matrix_init(mixing_matrix, mapping_matrix_toa_mixing.rows, - mapping_matrix_toa_mixing.cols, mapping_matrix_toa_mixing.gain, - mapping_matrix_toa_mixing_data, - sizeof(mapping_matrix_toa_mixing_data)); - } - else - return OPUS_BAD_ARG; - - st->mixing_matrix_size_in_bytes = mapping_matrix_get_size( - mixing_matrix->rows, mixing_matrix->cols); - if (!st->mixing_matrix_size_in_bytes) - return OPUS_BAD_ARG; - - /* Assign demixing matrix based on available pre-computed matrices. */ - demixing_matrix = get_enc_demixing_matrix(st); - if (order_plus_one == 2) - { - mapping_matrix_init(demixing_matrix, mapping_matrix_foa_demixing.rows, - mapping_matrix_foa_demixing.cols, mapping_matrix_foa_demixing.gain, - mapping_matrix_foa_demixing_data, - sizeof(mapping_matrix_foa_demixing_data)); - } - else if (order_plus_one == 3) - { - mapping_matrix_init(demixing_matrix, mapping_matrix_soa_demixing.rows, - mapping_matrix_soa_demixing.cols, mapping_matrix_soa_demixing.gain, - mapping_matrix_soa_demixing_data, - sizeof(mapping_matrix_soa_demixing_data)); - } - else if (order_plus_one == 4) - { - mapping_matrix_init(demixing_matrix, mapping_matrix_toa_demixing.rows, - mapping_matrix_toa_demixing.cols, mapping_matrix_toa_demixing.gain, - mapping_matrix_toa_demixing_data, - sizeof(mapping_matrix_toa_demixing_data)); - } - else - return OPUS_BAD_ARG; - - st->demixing_matrix_size_in_bytes = mapping_matrix_get_size( - demixing_matrix->rows, demixing_matrix->cols); - if (!st->demixing_matrix_size_in_bytes) - return OPUS_BAD_ARG; - } - else - return OPUS_UNIMPLEMENTED; - - /* Ensure matrices are large enough for desired coding scheme. */ - if (*streams + *coupled_streams > mixing_matrix->rows || - channels > mixing_matrix->cols || - channels > demixing_matrix->rows || - *streams + *coupled_streams > demixing_matrix->cols) - return OPUS_BAD_ARG; - - /* Set trivial mapping so each input channel pairs with a matrix column. */ - for (i = 0; i < channels; i++) - mapping[i] = i; - - /* Initialize multistream encoder with provided settings. */ - ms_encoder = get_multistream_encoder(st); - ret = opus_multistream_encoder_init(ms_encoder, Fs, channels, *streams, - *coupled_streams, mapping, application); - return ret; -} - -OpusProjectionEncoder *opus_projection_ambisonics_encoder_create( - opus_int32 Fs, int channels, int mapping_family, int *streams, - int *coupled_streams, int application, int *error) -{ - int size; - int ret; - OpusProjectionEncoder *st; - - /* Allocate space for the projection encoder. */ - size = opus_projection_ambisonics_encoder_get_size(channels, mapping_family); - if (!size) { - if (error) - *error = OPUS_ALLOC_FAIL; - return NULL; - } - st = (OpusProjectionEncoder *)opus_alloc(size); - if (!st) - { - if (error) - *error = OPUS_ALLOC_FAIL; - return NULL; - } - - /* Initialize projection encoder with provided settings. */ - ret = opus_projection_ambisonics_encoder_init(st, Fs, channels, - mapping_family, streams, coupled_streams, application); - if (ret != OPUS_OK) - { - opus_free(st); - st = NULL; - } - if (error) - *error = ret; - return st; -} - -int opus_projection_encode(OpusProjectionEncoder *st, const opus_int16 *pcm, - int frame_size, unsigned char *data, - opus_int32 max_data_bytes) -{ - return opus_multistream_encode_native(get_multistream_encoder(st), - opus_projection_copy_channel_in_short, pcm, frame_size, data, - max_data_bytes, 16, downmix_int, 0, get_mixing_matrix(st)); -} - -#ifndef DISABLE_FLOAT_API -#ifdef FIXED_POINT -int opus_projection_encode_float(OpusProjectionEncoder *st, const float *pcm, - int frame_size, unsigned char *data, - opus_int32 max_data_bytes) -{ - return opus_multistream_encode_native(get_multistream_encoder(st), - opus_projection_copy_channel_in_float, pcm, frame_size, data, - max_data_bytes, 16, downmix_float, 1, get_mixing_matrix(st)); -} -#else -int opus_projection_encode_float(OpusProjectionEncoder *st, const float *pcm, - int frame_size, unsigned char *data, - opus_int32 max_data_bytes) -{ - return opus_multistream_encode_native(get_multistream_encoder(st), - opus_projection_copy_channel_in_float, pcm, frame_size, data, - max_data_bytes, 24, downmix_float, 1, get_mixing_matrix(st)); -} -#endif -#endif - -void opus_projection_encoder_destroy(OpusProjectionEncoder *st) -{ - opus_free(st); -} - -int opus_projection_encoder_ctl(OpusProjectionEncoder *st, int request, ...) -{ - va_list ap; - MappingMatrix *demixing_matrix; - OpusMSEncoder *ms_encoder; - int ret = OPUS_OK; - - ms_encoder = get_multistream_encoder(st); - demixing_matrix = get_enc_demixing_matrix(st); - - va_start(ap, request); - switch(request) - { - case OPUS_PROJECTION_GET_DEMIXING_MATRIX_SIZE_REQUEST: - { - opus_int32 *value = va_arg(ap, opus_int32*); - if (!value) - { - goto bad_arg; - } - *value = - ms_encoder->layout.nb_channels * (ms_encoder->layout.nb_streams - + ms_encoder->layout.nb_coupled_streams) * sizeof(opus_int16); - } - break; - case OPUS_PROJECTION_GET_DEMIXING_MATRIX_GAIN_REQUEST: - { - opus_int32 *value = va_arg(ap, opus_int32*); - if (!value) - { - goto bad_arg; - } - *value = demixing_matrix->gain; - } - break; - case OPUS_PROJECTION_GET_DEMIXING_MATRIX_REQUEST: - { - int i, j, k, l; - int nb_input_streams; - int nb_output_streams; - unsigned char *external_char; - opus_int16 *internal_short; - opus_int32 external_size; - opus_int32 internal_size; - - /* (I/O is in relation to the decoder's perspective). */ - nb_input_streams = ms_encoder->layout.nb_streams + - ms_encoder->layout.nb_coupled_streams; - nb_output_streams = ms_encoder->layout.nb_channels; - - external_char = va_arg(ap, unsigned char *); - external_size = va_arg(ap, opus_int32); - if (!external_char) - { - goto bad_arg; - } - internal_short = mapping_matrix_get_data(demixing_matrix); - internal_size = nb_input_streams * nb_output_streams * sizeof(opus_int16); - if (external_size != internal_size) - { - goto bad_arg; - } - - /* Copy demixing matrix subset to output destination. */ - l = 0; - for (i = 0; i < nb_input_streams; i++) { - for (j = 0; j < nb_output_streams; j++) { - k = demixing_matrix->rows * i + j; - external_char[2*l] = (unsigned char)internal_short[k]; - external_char[2*l+1] = (unsigned char)(internal_short[k] >> 8); - l++; - } - } - } - break; - default: - { - ret = opus_multistream_encoder_ctl_va_list(ms_encoder, request, ap); - } - break; - } - va_end(ap); - return ret; - -bad_arg: - va_end(ap); - return OPUS_BAD_ARG; -} - |