995dcb610c
Took the opportunity to undo the Godot changed made to the
opus source. The opus module should eventually be built in its
own environment to avoid polluting others with too many include
dirs and defines.
TODO: Fix the platform/ stuff for opus.
(cherry picked from commit d9a291f641)
speex module was only added while cherry-picking, as speex is removed
in the master branch but we don't want to break compatibility in 2.1.x.
Unbundling wasn't done as the module uses the internal speex_free,
so it would require some more work.
366 lines
8.3 KiB
C
366 lines
8.3 KiB
C
/* Copyright (C) 2002-2006 Jean-Marc Valin
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File: modes.c
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Describes the different modes of the codec
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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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- Neither the name of the Xiph.org Foundation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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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 FOUNDATION OR
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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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#include "config.h"
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#include "modes.h"
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#include "ltp.h"
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#include "quant_lsp.h"
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#include "cb_search.h"
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#include "sb_celp.h"
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#include "nb_celp.h"
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#include "vbr.h"
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#include "arch.h"
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#include <math.h>
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#ifndef NULL
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#define NULL 0
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#endif
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/* Extern declarations for all codebooks we use here */
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extern const signed char gain_cdbk_nb[];
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extern const signed char gain_cdbk_lbr[];
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extern const signed char exc_5_256_table[];
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extern const signed char exc_5_64_table[];
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extern const signed char exc_8_128_table[];
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extern const signed char exc_10_32_table[];
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extern const signed char exc_10_16_table[];
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extern const signed char exc_20_32_table[];
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/* Parameters for Long-Term Prediction (LTP)*/
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static const ltp_params ltp_params_nb = {
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gain_cdbk_nb,
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7,
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7
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};
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/* Parameters for Long-Term Prediction (LTP)*/
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static const ltp_params ltp_params_vlbr = {
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gain_cdbk_lbr,
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5,
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0
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};
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/* Parameters for Long-Term Prediction (LTP)*/
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static const ltp_params ltp_params_lbr = {
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gain_cdbk_lbr,
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5,
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7
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};
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/* Parameters for Long-Term Prediction (LTP)*/
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static const ltp_params ltp_params_med = {
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gain_cdbk_lbr,
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5,
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7
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};
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/* Split-VQ innovation parameters for very low bit-rate narrowband */
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static const split_cb_params split_cb_nb_vlbr = {
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10, /*subvect_size*/
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4, /*nb_subvect*/
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exc_10_16_table, /*shape_cb*/
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4, /*shape_bits*/
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0,
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};
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/* Split-VQ innovation parameters for very low bit-rate narrowband */
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static const split_cb_params split_cb_nb_ulbr = {
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20, /*subvect_size*/
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2, /*nb_subvect*/
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exc_20_32_table, /*shape_cb*/
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5, /*shape_bits*/
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0,
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};
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/* Split-VQ innovation parameters for low bit-rate narrowband */
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static const split_cb_params split_cb_nb_lbr = {
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10, /*subvect_size*/
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4, /*nb_subvect*/
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exc_10_32_table, /*shape_cb*/
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5, /*shape_bits*/
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0,
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};
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/* Split-VQ innovation parameters narrowband */
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static const split_cb_params split_cb_nb = {
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5, /*subvect_size*/
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8, /*nb_subvect*/
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exc_5_64_table, /*shape_cb*/
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6, /*shape_bits*/
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0,
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};
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/* Split-VQ innovation parameters narrowband */
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static const split_cb_params split_cb_nb_med = {
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8, /*subvect_size*/
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5, /*nb_subvect*/
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exc_8_128_table, /*shape_cb*/
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7, /*shape_bits*/
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0,
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};
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/* Split-VQ innovation for low-band wideband */
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static const split_cb_params split_cb_sb = {
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5, /*subvect_size*/
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8, /*nb_subvect*/
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exc_5_256_table, /*shape_cb*/
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8, /*shape_bits*/
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0,
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};
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/* 2150 bps "vocoder-like" mode for comfort noise */
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static const SpeexSubmode nb_submode1 = {
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0,
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1,
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0,
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0,
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/* LSP quantization */
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lsp_quant_lbr,
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lsp_unquant_lbr,
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/* No pitch quantization */
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forced_pitch_quant,
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forced_pitch_unquant,
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NULL,
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/* No innovation quantization (noise only) */
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noise_codebook_quant,
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noise_codebook_unquant,
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NULL,
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-1,
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43
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};
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/* 3.95 kbps very low bit-rate mode */
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static const SpeexSubmode nb_submode8 = {
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0,
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1,
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0,
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0,
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/*LSP quantization*/
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lsp_quant_lbr,
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lsp_unquant_lbr,
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/*No pitch quantization*/
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forced_pitch_quant,
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forced_pitch_unquant,
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NULL,
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/*Innovation quantization*/
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split_cb_search_shape_sign,
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split_cb_shape_sign_unquant,
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&split_cb_nb_ulbr,
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QCONST16(.5,15),
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79
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};
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/* 5.95 kbps very low bit-rate mode */
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static const SpeexSubmode nb_submode2 = {
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0,
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0,
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0,
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0,
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/*LSP quantization*/
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lsp_quant_lbr,
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lsp_unquant_lbr,
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/*No pitch quantization*/
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pitch_search_3tap,
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pitch_unquant_3tap,
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<p_params_vlbr,
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/*Innovation quantization*/
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split_cb_search_shape_sign,
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split_cb_shape_sign_unquant,
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&split_cb_nb_vlbr,
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QCONST16(.6,15),
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119
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};
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/* 8 kbps low bit-rate mode */
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static const SpeexSubmode nb_submode3 = {
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-1,
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0,
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1,
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0,
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/*LSP quantization*/
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lsp_quant_lbr,
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lsp_unquant_lbr,
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/*Pitch quantization*/
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pitch_search_3tap,
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pitch_unquant_3tap,
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<p_params_lbr,
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/*Innovation quantization*/
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split_cb_search_shape_sign,
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split_cb_shape_sign_unquant,
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&split_cb_nb_lbr,
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QCONST16(.55,15),
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160
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};
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/* 11 kbps medium bit-rate mode */
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static const SpeexSubmode nb_submode4 = {
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-1,
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0,
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1,
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0,
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/*LSP quantization*/
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lsp_quant_lbr,
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lsp_unquant_lbr,
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/*Pitch quantization*/
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pitch_search_3tap,
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pitch_unquant_3tap,
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<p_params_med,
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/*Innovation quantization*/
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split_cb_search_shape_sign,
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split_cb_shape_sign_unquant,
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&split_cb_nb_med,
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QCONST16(.45,15),
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220
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};
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/* 15 kbps high bit-rate mode */
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static const SpeexSubmode nb_submode5 = {
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-1,
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0,
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3,
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0,
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/*LSP quantization*/
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lsp_quant_nb,
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lsp_unquant_nb,
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/*Pitch quantization*/
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pitch_search_3tap,
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pitch_unquant_3tap,
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<p_params_nb,
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/*Innovation quantization*/
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split_cb_search_shape_sign,
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split_cb_shape_sign_unquant,
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&split_cb_nb,
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QCONST16(.3,15),
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300
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};
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/* 18.2 high bit-rate mode */
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static const SpeexSubmode nb_submode6 = {
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-1,
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0,
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3,
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0,
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/*LSP quantization*/
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lsp_quant_nb,
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lsp_unquant_nb,
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/*Pitch quantization*/
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pitch_search_3tap,
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pitch_unquant_3tap,
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<p_params_nb,
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/*Innovation quantization*/
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split_cb_search_shape_sign,
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split_cb_shape_sign_unquant,
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&split_cb_sb,
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QCONST16(.2,15),
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364
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};
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/* 24.6 kbps high bit-rate mode */
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static const SpeexSubmode nb_submode7 = {
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-1,
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0,
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3,
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1,
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/*LSP quantization*/
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lsp_quant_nb,
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lsp_unquant_nb,
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/*Pitch quantization*/
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pitch_search_3tap,
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pitch_unquant_3tap,
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<p_params_nb,
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/*Innovation quantization*/
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split_cb_search_shape_sign,
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split_cb_shape_sign_unquant,
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&split_cb_nb,
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QCONST16(.1,15),
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492
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};
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/* Default mode for narrowband */
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static const SpeexNBMode nb_mode = {
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160, /*frameSize*/
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40, /*subframeSize*/
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10, /*lpcSize*/
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17, /*pitchStart*/
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144, /*pitchEnd*/
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#ifdef FIXED_POINT
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29491, 19661, /* gamma1, gamma2 */
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#else
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0.9, 0.6, /* gamma1, gamma2 */
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#endif
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QCONST16(.0002,15), /*lpc_floor*/
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{NULL, &nb_submode1, &nb_submode2, &nb_submode3, &nb_submode4, &nb_submode5, &nb_submode6, &nb_submode7,
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&nb_submode8, NULL, NULL, NULL, NULL, NULL, NULL, NULL},
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5,
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{1, 8, 2, 3, 3, 4, 4, 5, 5, 6, 7}
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};
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/* Default mode for narrowband */
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EXPORT const SpeexMode speex_nb_mode = {
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&nb_mode,
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nb_mode_query,
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"narrowband",
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0,
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4,
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&nb_encoder_init,
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&nb_encoder_destroy,
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&nb_encode,
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&nb_decoder_init,
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&nb_decoder_destroy,
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&nb_decode,
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&nb_encoder_ctl,
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&nb_decoder_ctl,
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};
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EXPORT int speex_mode_query(const SpeexMode *mode, int request, void *ptr)
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{
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return mode->query(mode->mode, request, ptr);
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}
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#ifdef FIXED_DEBUG
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long long spx_mips=0;
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#endif
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