168 lines
6.1 KiB
C
168 lines
6.1 KiB
C
/* (C) 2007 Jean-Marc Valin, CSIRO
|
|
*/
|
|
/*
|
|
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.
|
|
*/
|
|
|
|
#include "modes.h"
|
|
|
|
#define NBANDS 18
|
|
#define PBANDS 8
|
|
#define PITCH_END 74
|
|
|
|
#define NBANDS128 15
|
|
#define PBANDS128 8
|
|
#define PITCH_END128 45
|
|
|
|
static const float means[15] = {
|
|
14.8621, 12.6918, 10.2978, 9.5862, 10.3784,
|
|
10.4555, 9.1594, 9.0280, 8.3291, 8.3410,
|
|
8.5737, 8.5614, 9.0107, 7.6809, 7.0665};
|
|
|
|
static const float means18[18] = {
|
|
9.9067, 8.4524, 6.8577, 6.3804, 6.1786, 5.9815,
|
|
6.2068, 6.1076, 5.7711, 5.7734, 5.7935, 5.3981,
|
|
5.1992, 5.7214, 5.9656, 5.7548, 5.0802, 4.2626};
|
|
|
|
static const int decay[15] = {
|
|
14800, 13800, 12600, 12000, 11000, 10000, 9800, 8400, 8000, 7500, 7000, 7000, 7000, 6000, 6000
|
|
};
|
|
|
|
static const int decay18[18] = {
|
|
14800, 13800, 12600, 12000, 11000, 11000, 10000, 10000, 9800, 8400, 8400, 8000, 7500, 7000, 7000, 7000, 6000, 6000
|
|
};
|
|
|
|
const int qbank0[NBANDS +2] = {0, 4, 8, 12, 16, 20, 24, 28, 32, 38, 44, 52, 62, 74, 90,112,142,182, 232,256};
|
|
const int pbank0[PBANDS +2] = {0, 4, 8, 12, 16, 24, 38, 62, PITCH_END, 256};
|
|
//const int pbank0[PBANDS +2] = {0, 4, 8, 12, 19, PITCH_END, 128};
|
|
const int qpulses0[NBANDS ] = {7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, -3, -2, 0, 0};
|
|
//const int qpulses0[NBANDS ] = {7, 5, 5, 5, 4, 4, 3, 3, 3, 3, 4, 3, 3, -2, 0, 0, 0, 0};
|
|
|
|
|
|
const int qbank1[NBANDS128+2] = {0, 2, 4, 6, 8, 12, 16, 20, 24, 28, 36, 44, 52, 68, 84, 116, 128};
|
|
|
|
const int qpulses1[NBANDS128] = {7, 5, 5, 5, 4, 5, 4, 5, 5, 4, 2, 0, 0, 0, 0};
|
|
const int qpulses2[NBANDS] = {28,25,23,20,18,15, 13, 11, 10, 8,8, 7, 7, -6, -5, -4, -1, -1};
|
|
//const int qpulses2[NBANDS128] = {28,24,20,16,24,20, 18, 12, 10, 10,-7, -4, 1, 1, 1, 1, 1, 1};
|
|
const int qpulses2s[NBANDS128] ={38,30,24,20,24,20, 18, 16, 14, 20,-20,-14, -8, -8, -5};
|
|
|
|
const int qpulses4s[NBANDS] ={38,31,25,21,18,16, 14, 12, 14, 12,14,15, 14, 15, 16, 12, 10, 6};
|
|
|
|
//const int qpulses4s[NBANDS128] ={38,35,30,27,24,22, 21, 20, 22, 20,20,20, 20, 20, 14, 12, 12, 12};
|
|
|
|
const int pbank1[PBANDS128+2] = {0, 2, 4, 6, 8, 12, 20, 28, PITCH_END128, 128};
|
|
//const int pbank1[PBANDS128+2] = {0, 4, 8, 12, 20, PITCH_END128, 128};
|
|
|
|
#define NALLOCS 7
|
|
int bitalloc0[NBANDS*NALLOCS] =
|
|
{ 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0,
|
|
8, 7, 7, 6, 6, 6, 5, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
|
|
10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 9, 10, 11, 12, 17, 15, 6, 7,
|
|
16, 15, 14, 14, 14, 13, 13, 13, 13, 13, 15, 16, 17, 18, 20, 18, 11, 12,
|
|
26, 25, 24, 22, 20, 18, 19, 19, 25, 22, 25, 30, 30, 35, 35, 35, 35, 25,
|
|
32, 30, 28, 27, 25, 24, 23, 21, 29, 27, 35, 40, 42, 50, 59, 54, 51, 36,
|
|
42, 40, 38, 37, 35, 34, 33, 31, 39, 37, 45, 50, 52, 60, 60, 60, 60, 46,
|
|
};
|
|
|
|
|
|
#define NBANDS256 15
|
|
#define PBANDS256 8
|
|
#define PITCH_END256 88
|
|
const int qbank3[NBANDS256+2] = {0, 4, 8, 12, 16, 24, 32, 40, 48, 56, 72, 88, 104, 136, 168, 232, 256};
|
|
//const int pbank3[PBANDS256+2] = {0, 8, 16, 24, 40, PITCH_END256, 256};
|
|
const int pbank3[PBANDS256+2] = {0, 4, 8, 12, 16, 24, 40, 56, PITCH_END256, 256};
|
|
|
|
static const CELTMode mono_mode = {
|
|
128, /**< overlap */
|
|
256, /**< mdctSize */
|
|
1, /**< nbMdctBlocks */
|
|
1, /**< channels */
|
|
|
|
NBANDS, /**< nbEBands */
|
|
PBANDS, /**< nbPBands */
|
|
PITCH_END, /**< pitchEnd */
|
|
|
|
qbank0, /**< eBands */
|
|
pbank0, /**< pBands*/
|
|
qpulses0, /**< nbPulses */
|
|
|
|
0.8, /**< ePredCoef */
|
|
means18, /**< eMeans */
|
|
decay18, /**< eDecay */
|
|
|
|
NALLOCS, /**< nbAllocVectors */
|
|
bitalloc0, /**< allocVectors */
|
|
};
|
|
|
|
|
|
/* Stereo mode around 120 kbps */
|
|
static const CELTMode stereo_mode = {
|
|
128, /**< overlap */
|
|
256, /**< mdctSize */
|
|
1, /**< nbMdctBlocks */
|
|
2, /**< channels */
|
|
|
|
NBANDS, /**< nbEBands */
|
|
PBANDS, /**< nbPBands */
|
|
PITCH_END, /**< pitchEnd */
|
|
|
|
qbank0, /**< eBands */
|
|
pbank0, /**< pBands*/
|
|
qpulses4s, /**< nbPulses */
|
|
|
|
0.8, /**< ePredCoef */
|
|
means18, /**< eMeans */
|
|
decay18, /**< eDecay */
|
|
|
|
NALLOCS, /**< nbAllocVectors */
|
|
bitalloc0, /**< allocVectors */
|
|
};
|
|
|
|
const CELTMode const *celt_mono = &mono_mode;
|
|
const CELTMode const *celt_stereo = &stereo_mode;
|
|
|
|
|
|
int celt_mode_info(const CELTMode *mode, int request, celt_int32_t *value)
|
|
{
|
|
switch (request)
|
|
{
|
|
case CELT_GET_FRAME_SIZE:
|
|
*value = mode->mdctSize;
|
|
break;
|
|
case CELT_GET_LOOKAHEAD:
|
|
*value = mode->overlap;
|
|
break;
|
|
case CELT_GET_NB_CHANNELS:
|
|
*value = mode->nbChannels;
|
|
break;
|
|
default:
|
|
return CELT_BAD_ARG;
|
|
}
|
|
return CELT_OK;
|
|
}
|
|
|