1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 /**************************************************************************************** 19 Portions of this file are derived from the following 3GPP standard: 20 21 3GPP TS 26.173 22 ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec 23 Available from http://www.3gpp.org 24 25 (C) 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC) 26 Permission to distribute, modify and use this file under the standard license 27 terms listed above has been obtained from the copyright holder. 28 ****************************************************************************************/ 29 /* 30 ------------------------------------------------------------------------------ 31 32 Name: pvamrwbdecoder_cnst.h 33 34 Date: 05/02/2007 35 36 ------------------------------------------------------------------------------ 37 REVISION HISTORY 38 39 40 Description: 41 42 ------------------------------------------------------------------------------ 43 INCLUDE DESCRIPTION 44 45 Main header file for the Packet Video AMR Wide Band decoder library. The 46 constants, structures, and functions defined within this file, along with 47 a basic data types header file, is all that is needed to use and communicate 48 with the library. The internal data structures within the library are 49 purposely hidden. 50 51 52 ------------------------------------------------------------------------------ 53 REFERENCES 54 55 (Normally header files do not have a reference section) 56 57 ------------------------------------------------------------------------------ 58 */ 59 60 /*---------------------------------------------------------------------------- 61 ; CONTINUE ONLY IF NOT ALREADY DEFINED 62 ----------------------------------------------------------------------------*/ 63 64 #ifndef PVAMRWBDECODER_CNST_H 65 #define PVAMRWBDECODER_CNST_H 66 67 /*---------------------------------------------------------------------------- 68 ; INCLUDES 69 ----------------------------------------------------------------------------*/ 70 71 /*---------------------------------------------------------------------------- 72 ; MACROS 73 ; Define module specific macros here 74 ----------------------------------------------------------------------------*/ 75 76 /*---------------------------------------------------------------------------- 77 ; DEFINES 78 ; Include all pre-processor statements here. 79 ----------------------------------------------------------------------------*/ 80 81 #define L_FRAME 256 /* Frame size */ 82 #define L_SUBFR16k 80 /* Subframe size at 16kHz */ 83 84 #define L_SUBFR 64 /* Subframe size */ 85 #define NB_SUBFR 4 /* Number of subframe per frame */ 86 87 #define L_NEXT 64 /* Overhead in LP analysis */ 88 #define L_WINDOW 384 /* window size in LP analysis */ 89 #define L_TOTAL 384 /* Total size of speech buffer. */ 90 #define M 16 /* Order of LP filter */ 91 #define M16k 20 92 93 #define L_FILT16k 15 /* Delay of down-sampling filter */ 94 #define L_FILT 12 /* Delay of up-sampling filter */ 95 96 #define GP_CLIP 15565 /* Pitch gain clipping = 0.95 Q14 */ 97 #define PIT_SHARP 27853 /* pitch sharpening factor = 0.85 Q15 */ 98 99 #define PIT_MIN 34 /* Minimum pitch lag with resolution 1/4 */ 100 #define PIT_FR2 128 /* Minimum pitch lag with resolution 1/2 */ 101 #define PIT_FR1_9b 160 /* Minimum pitch lag with resolution 1 */ 102 #define PIT_FR1_8b 92 /* Minimum pitch lag with resolution 1 */ 103 #define PIT_MAX 231 /* Maximum pitch lag */ 104 #define L_INTERPOL (16+1) /* Length of filter for interpolation */ 105 106 #define OPL_DECIM 2 /* Decimation in open-loop pitch analysis */ 107 108 #define PREEMPH_FAC 22282 /* preemphasis factor (0.68 in Q15) */ 109 #define GAMMA1 30147 /* Weighting factor (numerator) (0.92 in Q15) */ 110 #define TILT_FAC 22282 /* tilt factor (denominator) (0.68 in Q15) */ 111 112 #define Q_MAX 8 /* scaling max for signal (see syn_filt_32) */ 113 114 #define RANDOM_INITSEED 21845 /* own random init value */ 115 116 #define L_MEANBUF 3 117 #define ONE_PER_MEANBUF 10923 118 119 #define MODE_7k 0 120 #define MODE_9k 1 121 #define MODE_12k 2 122 #define MODE_14k 3 123 #define MODE_16k 4 124 #define MODE_18k 5 125 #define MODE_20k 6 126 #define MODE_23k 7 127 #define MODE_24k 8 128 #define MRDTX 9 129 //#define NUM_OF_MODES 10 /* see bits.h for bits definition */ 130 131 #define EHF_MASK (int16)0x0008 /* homing frame pattern */ 132 133 #define BIT_0 (int16)-127 134 #define BIT_1 (int16)127 135 #define BIT_0_ITU (int16)0x007F 136 #define BIT_1_ITU (int16)0x0081 137 138 /*---------------------------------------------------------------------------- 139 ; END 140 ----------------------------------------------------------------------------*/ 141 142 #endif 143
