forked from Mirrors/freeswitch
4ee40ddc34
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11979 d0543943-73ff-0310-b7d9-9358b9ac24b2
301 lines
6.5 KiB
C
301 lines
6.5 KiB
C
/* Copyright (C) 2002-2007 Jean-Marc Valin
|
|
File: modes.c
|
|
|
|
Describes the wideband modes of the codec
|
|
|
|
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.
|
|
|
|
- Neither the name of the Xiph.org Foundation nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
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 FOUNDATION 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 "modes.h"
|
|
#include "ltp.h"
|
|
#include "quant_lsp.h"
|
|
#include "cb_search.h"
|
|
#include "sb_celp.h"
|
|
#include "nb_celp.h"
|
|
#include "vbr.h"
|
|
#include "arch.h"
|
|
#include <math.h>
|
|
#include "os_support.h"
|
|
|
|
|
|
#ifndef NULL
|
|
#define NULL 0
|
|
#endif
|
|
|
|
EXPORT const SpeexMode * const speex_mode_list[SPEEX_NB_MODES] = {&speex_nb_mode, &speex_wb_mode, &speex_uwb_mode};
|
|
|
|
extern const signed char hexc_table[];
|
|
extern const signed char hexc_10_32_table[];
|
|
|
|
#ifndef DISABLE_WIDEBAND
|
|
|
|
/* Split-VQ innovation for high-band wideband */
|
|
static const split_cb_params split_cb_high = {
|
|
8, /*subvect_size*/
|
|
5, /*nb_subvect*/
|
|
hexc_table, /*shape_cb*/
|
|
7, /*shape_bits*/
|
|
1,
|
|
};
|
|
|
|
|
|
/* Split-VQ innovation for high-band wideband */
|
|
static const split_cb_params split_cb_high_lbr = {
|
|
10, /*subvect_size*/
|
|
4, /*nb_subvect*/
|
|
hexc_10_32_table, /*shape_cb*/
|
|
5, /*shape_bits*/
|
|
0,
|
|
};
|
|
|
|
#endif
|
|
|
|
|
|
static const SpeexSubmode wb_submode1 = {
|
|
0,
|
|
0,
|
|
1,
|
|
0,
|
|
/*LSP quantization*/
|
|
lsp_quant_high,
|
|
lsp_unquant_high,
|
|
/*Pitch quantization*/
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
/*No innovation quantization*/
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
-1,
|
|
36
|
|
};
|
|
|
|
|
|
static const SpeexSubmode wb_submode2 = {
|
|
0,
|
|
0,
|
|
1,
|
|
0,
|
|
/*LSP quantization*/
|
|
lsp_quant_high,
|
|
lsp_unquant_high,
|
|
/*Pitch quantization*/
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
/*Innovation quantization*/
|
|
split_cb_search_shape_sign,
|
|
split_cb_shape_sign_unquant,
|
|
#ifdef DISABLE_WIDEBAND
|
|
NULL,
|
|
#else
|
|
&split_cb_high_lbr,
|
|
#endif
|
|
-1,
|
|
112
|
|
};
|
|
|
|
|
|
static const SpeexSubmode wb_submode3 = {
|
|
0,
|
|
0,
|
|
1,
|
|
0,
|
|
/*LSP quantization*/
|
|
lsp_quant_high,
|
|
lsp_unquant_high,
|
|
/*Pitch quantization*/
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
/*Innovation quantization*/
|
|
split_cb_search_shape_sign,
|
|
split_cb_shape_sign_unquant,
|
|
#ifdef DISABLE_WIDEBAND
|
|
NULL,
|
|
#else
|
|
&split_cb_high,
|
|
#endif
|
|
-1,
|
|
192
|
|
};
|
|
|
|
static const SpeexSubmode wb_submode4 = {
|
|
0,
|
|
0,
|
|
1,
|
|
1,
|
|
/*LSP quantization*/
|
|
lsp_quant_high,
|
|
lsp_unquant_high,
|
|
/*Pitch quantization*/
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
/*Innovation quantization*/
|
|
split_cb_search_shape_sign,
|
|
split_cb_shape_sign_unquant,
|
|
#ifdef DISABLE_WIDEBAND
|
|
NULL,
|
|
#else
|
|
&split_cb_high,
|
|
#endif
|
|
-1,
|
|
352
|
|
};
|
|
|
|
|
|
/* Split-band wideband CELP mode*/
|
|
static const SpeexSBMode sb_wb_mode = {
|
|
&speex_nb_mode,
|
|
160, /*frameSize*/
|
|
40, /*subframeSize*/
|
|
8, /*lpcSize*/
|
|
#ifdef FIXED_POINT
|
|
29491, 19661, /* gamma1, gamma2 */
|
|
#else
|
|
0.9, 0.6, /* gamma1, gamma2 */
|
|
#endif
|
|
QCONST16(.0002,15), /*lpc_floor*/
|
|
QCONST16(0.9f,15),
|
|
{NULL, &wb_submode1, &wb_submode2, &wb_submode3, &wb_submode4, NULL, NULL, NULL},
|
|
3,
|
|
{1, 8, 2, 3, 4, 5, 5, 6, 6, 7, 7},
|
|
{1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 4},
|
|
#ifndef DISABLE_VBR
|
|
vbr_hb_thresh,
|
|
#endif
|
|
5
|
|
};
|
|
|
|
|
|
EXPORT const SpeexMode speex_wb_mode = {
|
|
&sb_wb_mode,
|
|
wb_mode_query,
|
|
"wideband (sub-band CELP)",
|
|
1,
|
|
4,
|
|
&sb_encoder_init,
|
|
&sb_encoder_destroy,
|
|
&sb_encode,
|
|
&sb_decoder_init,
|
|
&sb_decoder_destroy,
|
|
&sb_decode,
|
|
&sb_encoder_ctl,
|
|
&sb_decoder_ctl,
|
|
};
|
|
|
|
|
|
|
|
/* "Ultra-wideband" mode stuff */
|
|
|
|
|
|
|
|
/* Split-band "ultra-wideband" (32 kbps) CELP mode*/
|
|
static const SpeexSBMode sb_uwb_mode = {
|
|
&speex_wb_mode,
|
|
320, /*frameSize*/
|
|
80, /*subframeSize*/
|
|
8, /*lpcSize*/
|
|
#ifdef FIXED_POINT
|
|
29491, 19661, /* gamma1, gamma2 */
|
|
#else
|
|
0.9, 0.6, /* gamma1, gamma2 */
|
|
#endif
|
|
QCONST16(.0002,15), /*lpc_floor*/
|
|
QCONST16(0.7f,15),
|
|
{NULL, &wb_submode1, NULL, NULL, NULL, NULL, NULL, NULL},
|
|
1,
|
|
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10},
|
|
{0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1},
|
|
#ifndef DISABLE_VBR
|
|
vbr_uhb_thresh,
|
|
#endif
|
|
2
|
|
};
|
|
|
|
int wb_mode_query(const void *mode, int request, void *ptr)
|
|
{
|
|
const SpeexSBMode *m = (const SpeexSBMode*)mode;
|
|
|
|
switch (request)
|
|
{
|
|
case SPEEX_MODE_FRAME_SIZE:
|
|
*((int*)ptr)=2*m->frameSize;
|
|
break;
|
|
case SPEEX_SUBMODE_BITS_PER_FRAME:
|
|
if (*((int*)ptr)==0)
|
|
*((int*)ptr) = SB_SUBMODE_BITS+1;
|
|
else if (m->submodes[*((int*)ptr)]==NULL)
|
|
*((int*)ptr) = -1;
|
|
else
|
|
*((int*)ptr) = m->submodes[*((int*)ptr)]->bits_per_frame;
|
|
break;
|
|
default:
|
|
speex_warning_int("Unknown wb_mode_query request: ", request);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
EXPORT const SpeexMode speex_uwb_mode = {
|
|
&sb_uwb_mode,
|
|
wb_mode_query,
|
|
"ultra-wideband (sub-band CELP)",
|
|
2,
|
|
4,
|
|
&sb_encoder_init,
|
|
&sb_encoder_destroy,
|
|
&sb_encode,
|
|
&sb_decoder_init,
|
|
&sb_decoder_destroy,
|
|
&sb_decode,
|
|
&sb_encoder_ctl,
|
|
&sb_decoder_ctl,
|
|
};
|
|
|
|
/* We have defined speex_lib_get_mode() as a macro in speex.h */
|
|
#undef speex_lib_get_mode
|
|
|
|
EXPORT const SpeexMode * speex_lib_get_mode (int mode)
|
|
{
|
|
if (mode < 0 || mode >= SPEEX_NB_MODES) return NULL;
|
|
|
|
return speex_mode_list[mode];
|
|
}
|
|
|
|
|
|
|