1 2 /* ----------------------------------------------------------------------------------------------------------- 3 Software License for The Fraunhofer FDK AAC Codec Library for Android 4 5 Copyright 1995 - 2013 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 /*! 92 \file 93 \brief Memory layout 94 \author Markus Lohwasser 95 */ 96 97 #ifndef AAC_ENC_RAM_H 98 #define AAC_ENC_RAM_H 99 100 #include "common_fix.h" 101 102 #include "aacenc.h" 103 #include "psy_data.h" 104 #include "interface.h" 105 #include "psy_main.h" 106 #include "bitenc.h" 107 #include "bit_cnt.h" 108 #include "psy_const.h" 109 110 #define OUTPUTBUFFER_SIZE (8192) /*!< Output buffer size has to be at least 6144 bits per channel (768 bytes). FDK bitbuffer implementation expects buffer of size 2^n. */ 111 112 113 /* 114 Moved AAC_ENC struct definition from aac_enc.cpp into aacEnc_ram.h to get size and respective 115 static memory in aacEnc_ram.cpp. 116 aac_enc.h is the outward visible header file and putting the struct into would cause necessity 117 of additional visible header files outside library. 118 */ 119 120 /* define hBitstream size: max AAC framelength is 6144 bits/channel */ 121 /*#define BUFFER_BITSTR_SIZE ((6400*(8)/bbWordSize) +((bbWordSize - 1) / bbWordSize))*/ 122 123 struct AAC_ENC { 124 125 AACENC_CONFIG *config; 126 127 INT ancillaryBitsPerFrame; /* ancillary bits per frame calculated from ancillary rate */ 128 129 CHANNEL_MAPPING channelMapping; 130 131 QC_STATE *qcKernel; 132 QC_OUT *qcOut[(1)]; 133 134 PSY_OUT *psyOut[(1)]; 135 PSY_INTERNAL *psyKernel; 136 137 /* lifetime vars */ 138 139 CHANNEL_MODE encoderMode; 140 INT bandwidth90dB; 141 AACENC_BITRATE_MODE bitrateMode; 142 143 INT dontWriteAdif; /* use: write ADIF header only before 1st frame */ 144 145 FIXP_DBL *dynamic_RAM; 146 147 148 INT maxChannels; /* used while allocation */ 149 INT maxElements; 150 INT maxFrames; 151 152 AUDIO_OBJECT_TYPE aot; /* AOT to be used while encoding. */ 153 154 } ; 155 156 #define maxSize(a,b) ( ((a)>(b)) ? (a) : (b) ) 157 158 #define BIT_LOOK_UP_SIZE ( sizeof(INT)*(MAX_SFB_LONG*(CODE_BOOK_ESC_NDX+1)) ) 159 #define MERGE_GAIN_LOOK_UP_SIZE ( sizeof(INT)*MAX_SFB_LONG ) 160 161 162 163 /* Dynamic RAM - Allocation */ 164 /* 165 ++++++++++++++++++++++++++++++++++++++++++++ 166 | P_BUF_0 | P_BUF_1 | 167 ++++++++++++++++++++++++++++++++++++++++++++ 168 | QC_OUT_CH | PSY_DYN | 169 ++++++++++++++++++++++++++++++++++++++++++++ 170 | | BitLookUp+MergeGainLookUp | 171 ++++++++++++++++++++++++++++++++++++++++++++ 172 | | Bitstream output buffer | 173 ++++++++++++++++++++++++++++++++++++++++++++ 174 */ 175 176 #define BUF_SIZE_0 ( ALIGN_SIZE(sizeof(QC_OUT_CHANNEL)*(8)) ) 177 #define BUF_SIZE_1 ( ALIGN_SIZE(maxSize(sizeof(PSY_DYNAMIC), \ 178 (BIT_LOOK_UP_SIZE+MERGE_GAIN_LOOK_UP_SIZE))) ) 179 180 #define P_BUF_0 ( 0 ) 181 #define P_BUF_1 ( P_BUF_0 + BUF_SIZE_0 ) 182 183 #define AAC_ENC_DYN_RAM_SIZE ( BUF_SIZE_0 + BUF_SIZE_1 ) 184 185 186 H_ALLOC_MEM (AACdynamic_RAM, FIXP_DBL) 187 /* 188 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 189 END - Dynamic RAM - Allocation */ 190 191 /* 192 See further Memory Allocation details in aacEnc_ram.cpp 193 */ 194 H_ALLOC_MEM (Ram_aacEnc_AacEncoder, AAC_ENC) 195 196 H_ALLOC_MEM (Ram_aacEnc_PsyElement, PSY_ELEMENT) 197 198 H_ALLOC_MEM (Ram_aacEnc_PsyInternal, PSY_INTERNAL) 199 H_ALLOC_MEM (Ram_aacEnc_PsyStatic, PSY_STATIC) 200 H_ALLOC_MEM (Ram_aacEnc_PsyInputBuffer, INT_PCM) 201 202 PSY_DYNAMIC *GetRam_aacEnc_PsyDynamic (int n, UCHAR* dynamic_RAM); 203 H_ALLOC_MEM (Ram_bsOutbuffer, UCHAR) 204 205 H_ALLOC_MEM (Ram_aacEnc_PsyOutChannel, PSY_OUT_CHANNEL) 206 207 H_ALLOC_MEM (Ram_aacEnc_PsyOut, PSY_OUT) 208 H_ALLOC_MEM (Ram_aacEnc_PsyOutElements, PSY_OUT_ELEMENT) 209 210 H_ALLOC_MEM (Ram_aacEnc_QCstate, QC_STATE) 211 H_ALLOC_MEM (Ram_aacEnc_AdjustThreshold, ADJ_THR_STATE) 212 213 H_ALLOC_MEM (Ram_aacEnc_AdjThrStateElement, ATS_ELEMENT) 214 H_ALLOC_MEM (Ram_aacEnc_ElementBits, ELEMENT_BITS) 215 H_ALLOC_MEM (Ram_aacEnc_BitCntrState, BITCNTR_STATE) 216 217 INT *GetRam_aacEnc_BitLookUp(int n, UCHAR* dynamic_RAM); 218 INT *GetRam_aacEnc_MergeGainLookUp(int n, UCHAR* dynamic_RAM); 219 QC_OUT_CHANNEL *GetRam_aacEnc_QCchannel (int n, UCHAR* dynamic_RAM); 220 221 H_ALLOC_MEM (Ram_aacEnc_QCout, QC_OUT) 222 H_ALLOC_MEM (Ram_aacEnc_QCelement, QC_OUT_ELEMENT) 223 224 225 #endif /* #ifndef AAC_ENC_RAM_H */ 226 227
