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Diffstat (limited to 'thirdparty/opus/opus_projection_decoder.c')
| -rw-r--r-- | thirdparty/opus/opus_projection_decoder.c | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/thirdparty/opus/opus_projection_decoder.c b/thirdparty/opus/opus_projection_decoder.c deleted file mode 100644 index c2e07d5bcf..0000000000 --- a/thirdparty/opus/opus_projection_decoder.c +++ /dev/null @@ -1,258 +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 "mapping_matrix.h" -#include "stack_alloc.h" - -struct OpusProjectionDecoder -{ - opus_int32 demixing_matrix_size_in_bytes; - /* Encoder states go here */ -}; - -#if !defined(DISABLE_FLOAT_API) -static void opus_projection_copy_channel_out_float( - void *dst, - int dst_stride, - int dst_channel, - const opus_val16 *src, - int src_stride, - int frame_size, - void *user_data) -{ - float *float_dst; - const MappingMatrix *matrix; - float_dst = (float *)dst; - matrix = (const MappingMatrix *)user_data; - - if (dst_channel == 0) - OPUS_CLEAR(float_dst, frame_size * dst_stride); - - if (src != NULL) - mapping_matrix_multiply_channel_out_float(matrix, src, dst_channel, - src_stride, float_dst, dst_stride, frame_size); -} -#endif - -static void opus_projection_copy_channel_out_short( - void *dst, - int dst_stride, - int dst_channel, - const opus_val16 *src, - int src_stride, - int frame_size, - void *user_data) -{ - opus_int16 *short_dst; - const MappingMatrix *matrix; - short_dst = (opus_int16 *)dst; - matrix = (const MappingMatrix *)user_data; - if (dst_channel == 0) - OPUS_CLEAR(short_dst, frame_size * dst_stride); - - if (src != NULL) - mapping_matrix_multiply_channel_out_short(matrix, src, dst_channel, - src_stride, short_dst, dst_stride, frame_size); -} - -static MappingMatrix *get_dec_demixing_matrix(OpusProjectionDecoder *st) -{ - /* void* cast avoids clang -Wcast-align warning */ - return (MappingMatrix*)(void*)((char*)st + - align(sizeof(OpusProjectionDecoder))); -} - -static OpusMSDecoder *get_multistream_decoder(OpusProjectionDecoder *st) -{ - /* void* cast avoids clang -Wcast-align warning */ - return (OpusMSDecoder*)(void*)((char*)st + - align(sizeof(OpusProjectionDecoder) + - st->demixing_matrix_size_in_bytes)); -} - -opus_int32 opus_projection_decoder_get_size(int channels, int streams, - int coupled_streams) -{ - opus_int32 matrix_size; - opus_int32 decoder_size; - - matrix_size = - mapping_matrix_get_size(streams + coupled_streams, channels); - if (!matrix_size) - return 0; - - decoder_size = opus_multistream_decoder_get_size(streams, coupled_streams); - if (!decoder_size) - return 0; - - return align(sizeof(OpusProjectionDecoder)) + matrix_size + decoder_size; -} - -int opus_projection_decoder_init(OpusProjectionDecoder *st, opus_int32 Fs, - int channels, int streams, int coupled_streams, - unsigned char *demixing_matrix, opus_int32 demixing_matrix_size) -{ - int nb_input_streams; - opus_int32 expected_matrix_size; - int i, ret; - unsigned char mapping[255]; - VARDECL(opus_int16, buf); - ALLOC_STACK; - - /* Verify supplied matrix size. */ - nb_input_streams = streams + coupled_streams; - expected_matrix_size = nb_input_streams * channels * sizeof(opus_int16); - if (expected_matrix_size != demixing_matrix_size) - { - RESTORE_STACK; - return OPUS_BAD_ARG; - } - - /* Convert demixing matrix input into internal format. */ - ALLOC(buf, nb_input_streams * channels, opus_int16); - for (i = 0; i < nb_input_streams * channels; i++) - { - int s = demixing_matrix[2*i + 1] << 8 | demixing_matrix[2*i]; - s = ((s & 0xFFFF) ^ 0x8000) - 0x8000; - buf[i] = (opus_int16)s; - } - - /* Assign demixing matrix. */ - st->demixing_matrix_size_in_bytes = - mapping_matrix_get_size(channels, nb_input_streams); - if (!st->demixing_matrix_size_in_bytes) - { - RESTORE_STACK; - return OPUS_BAD_ARG; - } - - mapping_matrix_init(get_dec_demixing_matrix(st), channels, nb_input_streams, 0, - buf, demixing_matrix_size); - - /* Set trivial mapping so each input channel pairs with a matrix column. */ - for (i = 0; i < channels; i++) - mapping[i] = i; - - ret = opus_multistream_decoder_init( - get_multistream_decoder(st), Fs, channels, streams, coupled_streams, mapping); - RESTORE_STACK; - return ret; -} - -OpusProjectionDecoder *opus_projection_decoder_create( - opus_int32 Fs, int channels, int streams, int coupled_streams, - unsigned char *demixing_matrix, opus_int32 demixing_matrix_size, int *error) -{ - int size; - int ret; - OpusProjectionDecoder *st; - - /* Allocate space for the projection decoder. */ - size = opus_projection_decoder_get_size(channels, streams, coupled_streams); - if (!size) { - if (error) - *error = OPUS_ALLOC_FAIL; - return NULL; - } - st = (OpusProjectionDecoder *)opus_alloc(size); - if (!st) - { - if (error) - *error = OPUS_ALLOC_FAIL; - return NULL; - } - - /* Initialize projection decoder with provided settings. */ - ret = opus_projection_decoder_init(st, Fs, channels, streams, coupled_streams, - demixing_matrix, demixing_matrix_size); - if (ret != OPUS_OK) - { - opus_free(st); - st = NULL; - } - if (error) - *error = ret; - return st; -} - -#ifdef FIXED_POINT -int opus_projection_decode(OpusProjectionDecoder *st, const unsigned char *data, - opus_int32 len, opus_int16 *pcm, int frame_size, - int decode_fec) -{ - return opus_multistream_decode_native(get_multistream_decoder(st), data, len, - pcm, opus_projection_copy_channel_out_short, frame_size, decode_fec, 0, - get_dec_demixing_matrix(st)); -} -#else -int opus_projection_decode(OpusProjectionDecoder *st, const unsigned char *data, - opus_int32 len, opus_int16 *pcm, int frame_size, - int decode_fec) -{ - return opus_multistream_decode_native(get_multistream_decoder(st), data, len, - pcm, opus_projection_copy_channel_out_short, frame_size, decode_fec, 1, - get_dec_demixing_matrix(st)); -} -#endif - -#ifndef DISABLE_FLOAT_API -int opus_projection_decode_float(OpusProjectionDecoder *st, const unsigned char *data, - opus_int32 len, float *pcm, int frame_size, int decode_fec) -{ - return opus_multistream_decode_native(get_multistream_decoder(st), data, len, - pcm, opus_projection_copy_channel_out_float, frame_size, decode_fec, 0, - get_dec_demixing_matrix(st)); -} -#endif - -int opus_projection_decoder_ctl(OpusProjectionDecoder *st, int request, ...) -{ - va_list ap; - int ret = OPUS_OK; - - va_start(ap, request); - ret = opus_multistream_decoder_ctl_va_list(get_multistream_decoder(st), - request, ap); - va_end(ap); - return ret; -} - -void opus_projection_decoder_destroy(OpusProjectionDecoder *st) -{ - opus_free(st); -} - |