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_dir_control_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 Arguments: h_frame_data - handle to struct SBR_FRAME_DATA 33 hBitBuf - handle to struct BIT_BUF 34 35 Return: void 36 37 38 ------------------------------------------------------------------------------ 39 FUNCTION DESCRIPTION 40 41 Reads direction control data from bitstream 42 43 ------------------------------------------------------------------------------ 44 REQUIREMENTS 45 46 47 ------------------------------------------------------------------------------ 48 REFERENCES 49 50 SC 29 Software Copyright Licencing Disclaimer: 51 52 This software module was originally developed by 53 Coding Technologies 54 55 and edited by 56 - 57 58 in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3 59 standards for reference purposes and its performance may not have been 60 optimized. This software module is an implementation of one or more tools as 61 specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards. 62 ISO/IEC gives users free license to this software module or modifications 63 thereof for use in products claiming conformance to audiovisual and 64 image-coding related ITU Recommendations and/or ISO/IEC International 65 Standards. ISO/IEC gives users the same free license to this software module or 66 modifications thereof for research purposes and further ISO/IEC standardisation. 67 Those intending to use this software module in products are advised that its 68 use may infringe existing patents. ISO/IEC have no liability for use of this 69 software module or modifications thereof. Copyright is not released for 70 products that do not conform to audiovisual and image-coding related ITU 71 Recommendations and/or ISO/IEC International Standards. 72 The original developer retains full right to modify and use the code for its 73 own purpose, assign or donate the code to a third party and to inhibit third 74 parties from using the code for products that do not conform to audiovisual and 75 image-coding related ITU Recommendations and/or ISO/IEC International Standards. 76 This copyright notice must be included in all copies or derivative works. 77 Copyright (c) ISO/IEC 2002. 78 79 ------------------------------------------------------------------------------ 80 PSEUDO-CODE 81 82 ------------------------------------------------------------------------------ 83 */ 84 85 86 /*---------------------------------------------------------------------------- 87 ; INCLUDES 88 ----------------------------------------------------------------------------*/ 89 90 #ifdef AAC_PLUS 91 92 93 #include "sbr_get_dir_control_data.h" 94 #include "buf_getbits.h" 95 96 /*---------------------------------------------------------------------------- 97 ; MACROS 98 ; Define module specific macros here 99 ----------------------------------------------------------------------------*/ 100 101 102 /*---------------------------------------------------------------------------- 103 ; DEFINES 104 ; Include all pre-processor statements here. Include conditional 105 ; compile variables also. 106 ----------------------------------------------------------------------------*/ 107 108 /*---------------------------------------------------------------------------- 109 ; LOCAL FUNCTION DEFINITIONS 110 ; Function Prototype declaration 111 ----------------------------------------------------------------------------*/ 112 113 /*---------------------------------------------------------------------------- 114 ; LOCAL STORE/BUFFER/POINTER DEFINITIONS 115 ; Variable declaration - defined here and used outside this module 116 ----------------------------------------------------------------------------*/ 117 118 /*---------------------------------------------------------------------------- 119 ; EXTERNAL FUNCTION REFERENCES 120 ; Declare functions defined elsewhere and referenced in this module 121 ----------------------------------------------------------------------------*/ 122 123 /*---------------------------------------------------------------------------- 124 ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES 125 ; Declare variables used in this module but defined elsewhere 126 ----------------------------------------------------------------------------*/ 127 128 /*---------------------------------------------------------------------------- 129 ; FUNCTION CODE 130 ----------------------------------------------------------------------------*/ 131 132 void sbr_get_dir_control_data(SBR_FRAME_DATA * h_frame_data, 133 BIT_BUFFER * hBitBuf) 134 { 135 Int32 i; 136 137 h_frame_data->nNoiseFloorEnvelopes = h_frame_data->frameInfo[0] > 1 ? 2 : 1; 138 139 140 for (i = 0; i < h_frame_data->frameInfo[0]; i++) 141 { 142 h_frame_data->domain_vec1[i] = buf_getbits(hBitBuf, SI_SBR_DOMAIN_BITS); 143 } 144 145 for (i = 0; i < h_frame_data->nNoiseFloorEnvelopes; i++) 146 { 147 h_frame_data->domain_vec2[i] = buf_getbits(hBitBuf, SI_SBR_DOMAIN_BITS); 148 } 149 } 150 151 #endif 152 153 154
