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: sbr_get_additional_data.c 21 22 ------------------------------------------------------------------------------ 23 REVISION HISTORY 24 25 26 Who: Date: MM/DD/YYYY 27 Description: 28 29 ------------------------------------------------------------------------------ 30 INPUT AND OUTPUT DEFINITIONS 31 32 33 34 ------------------------------------------------------------------------------ 35 FUNCTION DESCRIPTION 36 37 38 ------------------------------------------------------------------------------ 39 REQUIREMENTS 40 41 42 ------------------------------------------------------------------------------ 43 REFERENCES 44 45 SC 29 Software Copyright Licencing Disclaimer: 46 47 This software module was originally developed by 48 Coding Technologies 49 50 and edited by 51 - 52 53 in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3 54 standards for reference purposes and its performance may not have been 55 optimized. This software module is an implementation of one or more tools as 56 specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards. 57 ISO/IEC gives users free license to this software module or modifications 58 thereof for use in products claiming conformance to audiovisual and 59 image-coding related ITU Recommendations and/or ISO/IEC International 60 Standards. ISO/IEC gives users the same free license to this software module or 61 modifications thereof for research purposes and further ISO/IEC standardisation. 62 Those intending to use this software module in products are advised that its 63 use may infringe existing patents. ISO/IEC have no liability for use of this 64 software module or modifications thereof. Copyright is not released for 65 products that do not conform to audiovisual and image-coding related ITU 66 Recommendations and/or ISO/IEC International Standards. 67 The original developer retains full right to modify and use the code for its 68 own purpose, assign or donate the code to a third party and to inhibit third 69 parties from using the code for products that do not conform to audiovisual and 70 image-coding related ITU Recommendations and/or ISO/IEC International Standards. 71 This copyright notice must be included in all copies or derivative works. 72 Copyright (c) ISO/IEC 2002. 73 74 ------------------------------------------------------------------------------ 75 PSEUDO-CODE 76 77 ------------------------------------------------------------------------------ 78 */ 79 80 81 /*---------------------------------------------------------------------------- 82 ; INCLUDES 83 ----------------------------------------------------------------------------*/ 84 85 #ifdef AAC_PLUS 86 87 88 #include "sbr_get_additional_data.h" 89 #include "buf_getbits.h" 90 91 /*---------------------------------------------------------------------------- 92 ; MACROS 93 ; Define module specific macros here 94 ----------------------------------------------------------------------------*/ 95 96 97 /*---------------------------------------------------------------------------- 98 ; DEFINES 99 ; Include all pre-processor statements here. Include conditional 100 ; compile variables also. 101 ----------------------------------------------------------------------------*/ 102 103 /*---------------------------------------------------------------------------- 104 ; LOCAL FUNCTION DEFINITIONS 105 ; Function Prototype declaration 106 ----------------------------------------------------------------------------*/ 107 108 /*---------------------------------------------------------------------------- 109 ; LOCAL STORE/BUFFER/POINTER DEFINITIONS 110 ; Variable declaration - defined here and used outside this module 111 ----------------------------------------------------------------------------*/ 112 113 /*---------------------------------------------------------------------------- 114 ; EXTERNAL FUNCTION REFERENCES 115 ; Declare functions defined elsewhere and referenced in this module 116 ----------------------------------------------------------------------------*/ 117 118 /*---------------------------------------------------------------------------- 119 ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES 120 ; Declare variables used in this module but defined elsewhere 121 ----------------------------------------------------------------------------*/ 122 123 /*---------------------------------------------------------------------------- 124 ; FUNCTION CODE 125 ----------------------------------------------------------------------------*/ 126 127 void sbr_get_additional_data(SBR_FRAME_DATA * hFrameData, 128 BIT_BUFFER * hBitBuf) 129 { 130 Int32 i; 131 132 Int32 flag = buf_getbits(hBitBuf, 1); 133 134 if (flag) 135 { 136 for (i = 0; i < hFrameData->nSfb[HI]; i++) 137 { 138 hFrameData->addHarmonics[i] = buf_getbits(hBitBuf, 1); 139 } 140 } 141 } 142 143 #endif 144 145 146
