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 20 Filename: s_sbr_dec.h 21 Funtions: 22 get_dse 23 24 ------------------------------------------------------------------------------ 25 REVISION HISTORY 26 27 28 Who: Date: MM/DD/YYYY 29 Description: 30 ------------------------------------------------------------------------------ 31 SC 29 Software Copyright Licencing Disclaimer: 32 33 This software module was originally developed by 34 Coding Technologies 35 36 and edited by 37 - 38 39 in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3 40 standards for reference purposes and its performance may not have been 41 optimized. This software module is an implementation of one or more tools as 42 specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards. 43 ISO/IEC gives users free license to this software module or modifications 44 thereof for use in products claiming conformance to audiovisual and 45 image-coding related ITU Recommendations and/or ISO/IEC International 46 Standards. ISO/IEC gives users the same free license to this software module or 47 modifications thereof for research purposes and further ISO/IEC standardisation. 48 Those intending to use this software module in products are advised that its 49 use may infringe existing patents. ISO/IEC have no liability for use of this 50 software module or modifications thereof. Copyright is not released for 51 products that do not conform to audiovisual and image-coding related ITU 52 Recommendations and/or ISO/IEC International Standards. 53 The original developer retains full right to modify and use the code for its 54 own purpose, assign or donate the code to a third party and to inhibit third 55 parties from using the code for products that do not conform to audiovisual and 56 image-coding related ITU Recommendations and/or ISO/IEC International Standards. 57 This copyright notice must be included in all copies or derivative works. 58 Copyright (c) ISO/IEC 2002. 59 60 $Id: ct_envcalc.h,v 1.3 2002/11/29 16:11:49 kaehleof Exp $ 61 */ 62 63 /*---------------------------------------------------------------------------- 64 ; CONTINUE ONLY IF NOT ALREADY DEFINED 65 ----------------------------------------------------------------------------*/ 66 #ifndef S_SBR_DEC_H 67 #define S_SBR_DEC_H 68 69 /*---------------------------------------------------------------------------- 70 ; INCLUDES 71 ----------------------------------------------------------------------------*/ 72 73 #include "s_sbr_frame_data.h" 74 #include "pv_audio_type_defs.h" 75 #include "s_patch.h" 76 #include "e_blockswitching.h" 77 78 /*---------------------------------------------------------------------------- 79 ; MACROS 80 ; Define module specific macros here 81 ----------------------------------------------------------------------------*/ 82 83 /*---------------------------------------------------------------------------- 84 ; DEFINES 85 ; Include all pre-processor statements here. 86 ----------------------------------------------------------------------------*/ 87 88 /*---------------------------------------------------------------------------- 89 ; EXTERNAL VARIABLES REFERENCES 90 ; Declare variables used in this module but defined elsewhere 91 ----------------------------------------------------------------------------*/ 92 93 /*---------------------------------------------------------------------------- 94 ; SIMPLE TYPEDEF'S 95 ----------------------------------------------------------------------------*/ 96 97 /*---------------------------------------------------------------------------- 98 ; ENUMERATED TYPEDEF'S 99 ----------------------------------------------------------------------------*/ 100 101 /*---------------------------------------------------------------------------- 102 ; STRUCTURES TYPEDEF'S 103 ----------------------------------------------------------------------------*/ 104 typedef struct 105 { 106 Int32 outSampleRate; 107 Int32 LC_aacP_DecoderFlag; /* Low Complexity decoder flag */ 108 109 Int32 startIndexCodecQmf; 110 Int32 lowBandAddSamples; 111 Int32 noCols; 112 Int32 qmfBufLen; 113 Int32 bufWriteOffs; 114 Int32 bufReadOffs; 115 116 Int32 sbStopCodec; 117 Int lowSubband; 118 Int prevLowSubband; 119 Int32 highSubband; 120 Int32 noSubbands; 121 122 Int FreqBandTable[2][MAX_FREQ_COEFFS + 1]; 123 Int32 FreqBandTableNoise[MAX_NOISE_COEFFS + 1]; 124 Int32 V_k_master[MAX_FREQ_COEFFS + 1]; /* Master BandTable which freqBandTable is derived from*/ 125 Int32 NSfb[2]; 126 Int32 NoNoiseBands; /* Number of noisebands */ 127 Int32 Num_Master; /* Number of bands in V_k_master*/ 128 129 struct PATCH Patch; /* Used by sbr_generate_high_freq */ 130 /* Used by calc_sbr_envelope */ 131 Int32 gateMode[4]; 132 Int32 limSbc[4][12 + 1]; /* Limiting bands */ 133 134 Int32 sqrt_cache[8][4]; /* cache memory for repeated sqrt() calculations */ 135 136 } SBR_DEC; 137 138 139 140 /*---------------------------------------------------------------------------- 141 ; END 142 ----------------------------------------------------------------------------*/ 143 #endif 144 145 146
