/* | |
** Copyright 2003-2010, VisualOn, Inc. | |
** | |
** Licensed under the Apache License, Version 2.0 (the "License"); | |
** you may not use this file except in compliance with the License. | |
** You may obtain a copy of the License at | |
** | |
** http://www.apache.org/licenses/LICENSE-2.0 | |
** | |
** Unless required by applicable law or agreed to in writing, software | |
** distributed under the License is distributed on an "AS IS" BASIS, | |
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
** See the License for the specific language governing permissions and | |
** limitations under the License. | |
*/ | |
/*--------------------------------------------------------------------------* | |
* CNST.H * | |
*--------------------------------------------------------------------------* | |
* Codec constant parameters (coder and decoder) * | |
*--------------------------------------------------------------------------*/ | |
#ifndef __CNST_H__ | |
#define __CNST_H__ | |
#define L_FRAME16k 320 /* Frame size at 16kHz */ | |
#define L_FRAME 256 /* Frame size */ | |
#define L_SUBFR16k 80 /* Subframe size at 16kHz */ | |
#define L_SUBFR 64 /* Subframe size */ | |
#define NB_SUBFR 4 /* Number of subframe per frame */ | |
#define L_NEXT 64 /* Overhead in LP analysis */ | |
#define L_WINDOW 384 /* window size in LP analysis */ | |
#define L_TOTAL 384 /* Total size of speech buffer. */ | |
#define M 16 /* Order of LP filter */ | |
#define M16k 20 | |
#define L_FILT16k 15 /* Delay of down-sampling filter */ | |
#define L_FILT 12 /* Delay of up-sampling filter */ | |
#define GP_CLIP 15565 /* Pitch gain clipping = 0.95 Q14 */ | |
#define PIT_SHARP 27853 /* pitch sharpening factor = 0.85 Q15 */ | |
#define PIT_MIN 34 /* Minimum pitch lag with resolution 1/4 */ | |
#define PIT_FR2 128 /* Minimum pitch lag with resolution 1/2 */ | |
#define PIT_FR1_9b 160 /* Minimum pitch lag with resolution 1 */ | |
#define PIT_FR1_8b 92 /* Minimum pitch lag with resolution 1 */ | |
#define PIT_MAX 231 /* Maximum pitch lag */ | |
#define L_INTERPOL (16+1) /* Length of filter for interpolation */ | |
#define OPL_DECIM 2 /* Decimation in open-loop pitch analysis */ | |
#define PREEMPH_FAC 22282 /* preemphasis factor (0.68 in Q15) */ | |
#define GAMMA1 30147 /* Weighting factor (numerator) (0.92 in Q15) */ | |
#define TILT_FAC 22282 /* tilt factor (denominator) (0.68 in Q15) */ | |
#define Q_MAX 8 /* scaling max for signal (see syn_filt_32) */ | |
#define RANDOM_INITSEED 21845 /* own random init value */ | |
#define L_MEANBUF 3 | |
#define ONE_PER_MEANBUF 10923 | |
#define MODE_7k 0 | |
#define MODE_9k 1 | |
#define MODE_12k 2 | |
#define MODE_14k 3 | |
#define MODE_16k 4 | |
#define MODE_18k 5 | |
#define MODE_20k 6 | |
#define MODE_23k 7 | |
#define MODE_24k 8 | |
#define MRDTX 9 | |
#define NUM_OF_MODES 10 /* see bits.h for bits definition */ | |
#define EHF_MASK (Word16)0x0008 /* homing frame pattern */ | |
#endif //__CNST_H__ | |