| /* |
| ** 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__ |
| |
