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.
300 lines
6.4 KiB
C
300 lines
6.4 KiB
C
/* Copyright (C) 2002-2007 Jean-Marc Valin
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File: modes.c
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Describes the wideband 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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#include "os_support.h"
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#ifndef NULL
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#define NULL 0
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#endif
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EXPORT const SpeexMode * const speex_mode_list[SPEEX_NB_MODES] = {&speex_nb_mode, &speex_wb_mode, &speex_uwb_mode};
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extern const signed char hexc_table[];
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extern const signed char hexc_10_32_table[];
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#ifndef DISABLE_WIDEBAND
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/* Split-VQ innovation for high-band wideband */
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static const split_cb_params split_cb_high = {
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8, /*subvect_size*/
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5, /*nb_subvect*/
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hexc_table, /*shape_cb*/
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7, /*shape_bits*/
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1,
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};
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/* Split-VQ innovation for high-band wideband */
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static const split_cb_params split_cb_high_lbr = {
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10, /*subvect_size*/
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4, /*nb_subvect*/
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hexc_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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#endif
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static const SpeexSubmode wb_submode1 = {
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0,
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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_high,
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lsp_unquant_high,
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/*Pitch quantization*/
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NULL,
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NULL,
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NULL,
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/*No innovation quantization*/
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NULL,
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NULL,
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NULL,
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-1,
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36
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};
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static const SpeexSubmode wb_submode2 = {
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0,
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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_high,
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lsp_unquant_high,
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/*Pitch quantization*/
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NULL,
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NULL,
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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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#ifdef DISABLE_WIDEBAND
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NULL,
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#else
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&split_cb_high_lbr,
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#endif
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-1,
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112
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};
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static const SpeexSubmode wb_submode3 = {
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0,
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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_high,
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lsp_unquant_high,
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/*Pitch quantization*/
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NULL,
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NULL,
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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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#ifdef DISABLE_WIDEBAND
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NULL,
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#else
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&split_cb_high,
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#endif
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-1,
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192
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};
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static const SpeexSubmode wb_submode4 = {
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0,
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0,
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1,
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1,
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/*LSP quantization*/
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lsp_quant_high,
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lsp_unquant_high,
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/*Pitch quantization*/
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NULL,
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NULL,
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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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#ifdef DISABLE_WIDEBAND
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NULL,
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#else
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&split_cb_high,
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#endif
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-1,
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352
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};
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/* Split-band wideband CELP mode*/
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static const SpeexSBMode sb_wb_mode = {
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&speex_nb_mode,
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160, /*frameSize*/
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40, /*subframeSize*/
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8, /*lpcSize*/
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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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QCONST16(0.9f,15),
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{NULL, &wb_submode1, &wb_submode2, &wb_submode3, &wb_submode4, NULL, NULL, NULL},
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3,
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{1, 8, 2, 3, 4, 5, 5, 6, 6, 7, 7},
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{1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 4},
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#ifndef DISABLE_VBR
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vbr_hb_thresh,
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#endif
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5
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};
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EXPORT const SpeexMode speex_wb_mode = {
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&sb_wb_mode,
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wb_mode_query,
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"wideband (sub-band CELP)",
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1,
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4,
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&sb_encoder_init,
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&sb_encoder_destroy,
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&sb_encode,
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&sb_decoder_init,
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&sb_decoder_destroy,
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&sb_decode,
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&sb_encoder_ctl,
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&sb_decoder_ctl,
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};
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/* "Ultra-wideband" mode stuff */
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/* Split-band "ultra-wideband" (32 kbps) CELP mode*/
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static const SpeexSBMode sb_uwb_mode = {
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&speex_wb_mode,
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320, /*frameSize*/
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80, /*subframeSize*/
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8, /*lpcSize*/
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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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QCONST16(0.7f,15),
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{NULL, &wb_submode1, NULL, NULL, NULL, NULL, NULL, NULL},
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1,
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{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
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{0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
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#ifndef DISABLE_VBR
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vbr_uhb_thresh,
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#endif
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2
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};
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int wb_mode_query(const void *mode, int request, void *ptr)
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{
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const SpeexSBMode *m = (const SpeexSBMode*)mode;
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switch (request)
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{
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case SPEEX_MODE_FRAME_SIZE:
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*((int*)ptr)=2*m->frameSize;
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break;
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case SPEEX_SUBMODE_BITS_PER_FRAME:
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if (*((int*)ptr)==0)
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*((int*)ptr) = SB_SUBMODE_BITS+1;
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else if (m->submodes[*((int*)ptr)]==NULL)
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*((int*)ptr) = -1;
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else
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*((int*)ptr) = m->submodes[*((int*)ptr)]->bits_per_frame;
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break;
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default:
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speex_warning_int("Unknown wb_mode_query request: ", request);
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return -1;
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}
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return 0;
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}
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EXPORT const SpeexMode speex_uwb_mode = {
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&sb_uwb_mode,
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wb_mode_query,
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"ultra-wideband (sub-band CELP)",
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2,
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4,
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&sb_encoder_init,
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&sb_encoder_destroy,
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&sb_encode,
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&sb_decoder_init,
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&sb_decoder_destroy,
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&sb_decode,
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&sb_encoder_ctl,
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&sb_decoder_ctl,
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};
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/* We have defined speex_lib_get_mode() as a macro in speex.h */
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#undef speex_lib_get_mode
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EXPORT const SpeexMode * speex_lib_get_mode (int mode)
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{
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if (mode < 0 || mode >= SPEEX_NB_MODES) return NULL;
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return speex_mode_list[mode];
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}
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