1 2 /* ----------------------------------------------------------------------------------------------------------- 3 Software License for The Fraunhofer FDK AAC Codec Library for Android 4 5 Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur Frderung der angewandten Forschung e.V. 6 All rights reserved. 7 8 1. INTRODUCTION 9 The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements 10 the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. 11 This FDK AAC Codec software is intended to be used on a wide variety of Android devices. 12 13 AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual 14 audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by 15 independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part 16 of the MPEG specifications. 17 18 Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) 19 may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners 20 individually for the purpose of encoding or decoding bit streams in products that are compliant with 21 the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license 22 these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec 23 software may already be covered under those patent licenses when it is used for those licensed purposes only. 24 25 Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, 26 are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional 27 applications information and documentation. 28 29 2. COPYRIGHT LICENSE 30 31 Redistribution and use in source and binary forms, with or without modification, are permitted without 32 payment of copyright license fees provided that you satisfy the following conditions: 33 34 You must retain the complete text of this software license in redistributions of the FDK AAC Codec or 35 your modifications thereto in source code form. 36 37 You must retain the complete text of this software license in the documentation and/or other materials 38 provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. 39 You must make available free of charge copies of the complete source code of the FDK AAC Codec and your 40 modifications thereto to recipients of copies in binary form. 41 42 The name of Fraunhofer may not be used to endorse or promote products derived from this library without 43 prior written permission. 44 45 You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec 46 software or your modifications thereto. 47 48 Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software 49 and the date of any change. For modified versions of the FDK AAC Codec, the term 50 "Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term 51 "Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." 52 53 3. NO PATENT LICENSE 54 55 NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, 56 ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with 57 respect to this software. 58 59 You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized 60 by appropriate patent licenses. 61 62 4. DISCLAIMER 63 64 This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors 65 "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties 66 of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 67 CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, 68 including but not limited to procurement of substitute goods or services; loss of use, data, or profits, 69 or business interruption, however caused and on any theory of liability, whether in contract, strict 70 liability, or tort (including negligence), arising in any way out of the use of this software, even if 71 advised of the possibility of such damage. 72 73 5. CONTACT INFORMATION 74 75 Fraunhofer Institute for Integrated Circuits IIS 76 Attention: Audio and Multimedia Departments - FDK AAC LL 77 Am Wolfsmantel 33 78 91058 Erlangen, Germany 79 80 www.iis.fraunhofer.de/amm 81 amm-info (at) iis.fraunhofer.de 82 ----------------------------------------------------------------------------------------------------------- */ 83 84 /****************************************************************************** 85 86 Initial authors: M. Lohwasser, M. Gayer 87 Contents/description: 88 89 ******************************************************************************/ 90 /*! 91 \file 92 \brief Memory layout 93 \author Markus Lohwasser 94 */ 95 96 #include "aacEnc_ram.h" 97 98 C_ALLOC_MEM (AACdynamic_RAM, FIXP_DBL, AAC_ENC_DYN_RAM_SIZE/sizeof(FIXP_DBL)) 99 100 /* 101 Static memory areas, must not be overwritten in other sections of the decoder ! 102 */ 103 104 /* 105 The structure AacEncoder contains all Encoder structures. 106 */ 107 108 C_ALLOC_MEM (Ram_aacEnc_AacEncoder, AAC_ENC, 1) 109 110 111 /* 112 The structure PSY_INTERNAl contains all psych configuration and data pointer. 113 * PsyStatic holds last and current Psych data. 114 * PsyInputBuffer contains time input. Signal is needed at the beginning of Psych. 115 Memory can be reused after signal is in time domain. 116 * PsyData contains spectral, nrg and threshold information. Necessary data are 117 copied into PsyOut, so memory is available after leaving psych. 118 * TnsData, ChaosMeasure, PnsData are temporarily necessary, e.g. use memory from 119 PsyInputBuffer. 120 */ 121 122 C_ALLOC_MEM2 (Ram_aacEnc_PsyElement, PSY_ELEMENT, 1, (6)) 123 124 C_ALLOC_MEM (Ram_aacEnc_PsyInternal, PSY_INTERNAL, 1) 125 C_ALLOC_MEM2 (Ram_aacEnc_PsyStatic, PSY_STATIC, 1, (6)) 126 127 C_ALLOC_MEM2 (Ram_aacEnc_PsyInputBuffer, INT_PCM, MAX_INPUT_BUFFER_SIZE, (6)) 128 129 PSY_DYNAMIC *GetRam_aacEnc_PsyDynamic (int n, UCHAR* dynamic_RAM) { 130 FDK_ASSERT(dynamic_RAM!=0); 131 return ((PSY_DYNAMIC*) (dynamic_RAM + P_BUF_1 + n*sizeof(PSY_DYNAMIC))); 132 } 133 134 C_ALLOC_MEM (Ram_bsOutbuffer, UCHAR, OUTPUTBUFFER_SIZE) 135 136 /* 137 The structure PSY_OUT holds all psychoaccoustic data needed 138 in quantization module 139 */ 140 C_ALLOC_MEM2 (Ram_aacEnc_PsyOut, PSY_OUT, 1, (1)) 141 142 C_ALLOC_MEM2 (Ram_aacEnc_PsyOutElements, PSY_OUT_ELEMENT, 1, (1)*(6)) 143 C_ALLOC_MEM2 (Ram_aacEnc_PsyOutChannel, PSY_OUT_CHANNEL, 1, (1)*(6)) 144 145 146 /* 147 The structure QC_STATE contains preinitialized settings and quantizer structures. 148 * AdjustThreshold structure contains element-wise settings. 149 * ElementBits contains elemnt-wise bit consumption settings. 150 * When CRC is active, lookup table is necessary for fast crc calculation. 151 * Bitcounter contains buffer to find optimal codebooks and minimal bit consumption. 152 Values are temporarily, so dynamic memory can be used. 153 */ 154 155 C_ALLOC_MEM (Ram_aacEnc_QCstate, QC_STATE, 1) 156 C_ALLOC_MEM (Ram_aacEnc_AdjustThreshold, ADJ_THR_STATE, 1) 157 158 C_ALLOC_MEM2 (Ram_aacEnc_AdjThrStateElement, ATS_ELEMENT, 1, (6)) 159 C_ALLOC_MEM2 (Ram_aacEnc_ElementBits, ELEMENT_BITS, 1, (6)) 160 C_ALLOC_MEM (Ram_aacEnc_BitCntrState, BITCNTR_STATE, 1) 161 162 INT *GetRam_aacEnc_BitLookUp(int n, UCHAR* dynamic_RAM) { 163 FDK_ASSERT(dynamic_RAM!=0); 164 return ((INT*) (dynamic_RAM + P_BUF_1)); 165 } 166 INT *GetRam_aacEnc_MergeGainLookUp(int n, UCHAR* dynamic_RAM) { 167 FDK_ASSERT(dynamic_RAM!=0); 168 return ((INT*) (dynamic_RAM + P_BUF_1 + sizeof(INT)*(MAX_SFB_LONG*(CODE_BOOK_ESC_NDX+1)))); 169 } 170 171 172 /* 173 The structure QC_OUT contains settings and structures holding all necessary information 174 needed in bitstreamwriter. 175 */ 176 177 C_ALLOC_MEM2 (Ram_aacEnc_QCout, QC_OUT, 1, (1)) 178 C_ALLOC_MEM2 (Ram_aacEnc_QCelement, QC_OUT_ELEMENT, 1, (1)*(6)) 179 QC_OUT_CHANNEL *GetRam_aacEnc_QCchannel (int n, UCHAR* dynamic_RAM) { 180 FDK_ASSERT(dynamic_RAM!=0); 181 return ((QC_OUT_CHANNEL*) (dynamic_RAM + P_BUF_0 + n*sizeof(QC_OUT_CHANNEL))); 182 } 183 184 185 186 187 188 189 190 191 192 193 194 195
