1 /* ----------------------------------------------------------------------------- 2 Software License for The Fraunhofer FDK AAC Codec Library for Android 3 4 © Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten 5 Forschung e.V. All rights reserved. 6 7 1. INTRODUCTION 8 The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software 9 that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding 10 scheme for digital audio. This FDK AAC Codec software is intended to be used on 11 a wide variety of Android devices. 12 13 AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient 14 general perceptual audio codecs. AAC-ELD is considered the best-performing 15 full-bandwidth communications codec by independent studies and is widely 16 deployed. AAC has been standardized by ISO and IEC as part of the MPEG 17 specifications. 18 19 Patent licenses for necessary patent claims for the FDK AAC Codec (including 20 those of Fraunhofer) may be obtained through Via Licensing 21 (www.vialicensing.com) or through the respective patent owners individually for 22 the purpose of encoding or decoding bit streams in products that are compliant 23 with the ISO/IEC MPEG audio standards. Please note that most manufacturers of 24 Android devices already license these patent claims through Via Licensing or 25 directly from the patent owners, and therefore FDK AAC Codec software may 26 already be covered under those patent licenses when it is used for those 27 licensed purposes only. 28 29 Commercially-licensed AAC software libraries, including floating-point versions 30 with enhanced sound quality, are also available from Fraunhofer. Users are 31 encouraged to check the Fraunhofer website for additional applications 32 information and documentation. 33 34 2. COPYRIGHT LICENSE 35 36 Redistribution and use in source and binary forms, with or without modification, 37 are permitted without payment of copyright license fees provided that you 38 satisfy the following conditions: 39 40 You must retain the complete text of this software license in redistributions of 41 the FDK AAC Codec or your modifications thereto in source code form. 42 43 You must retain the complete text of this software license in the documentation 44 and/or other materials provided with redistributions of the FDK AAC Codec or 45 your modifications thereto in binary form. You must make available free of 46 charge copies of the complete source code of the FDK AAC Codec and your 47 modifications thereto to recipients of copies in binary form. 48 49 The name of Fraunhofer may not be used to endorse or promote products derived 50 from this library without prior written permission. 51 52 You may not charge copyright license fees for anyone to use, copy or distribute 53 the FDK AAC Codec software or your modifications thereto. 54 55 Your modified versions of the FDK AAC Codec must carry prominent notices stating 56 that you changed the software and the date of any change. For modified versions 57 of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android" 58 must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK 59 AAC Codec Library for Android." 60 61 3. NO PATENT LICENSE 62 63 NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without 64 limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE. 65 Fraunhofer provides no warranty of patent non-infringement with respect to this 66 software. 67 68 You may use this FDK AAC Codec software or modifications thereto only for 69 purposes that are authorized by appropriate patent licenses. 70 71 4. DISCLAIMER 72 73 This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright 74 holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, 75 including but not limited to the implied warranties of merchantability and 76 fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 77 CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, 78 or consequential damages, including but not limited to procurement of substitute 79 goods or services; loss of use, data, or profits, or business interruption, 80 however caused and on any theory of liability, whether in contract, strict 81 liability, or tort (including negligence), arising in any way out of the use of 82 this software, even if advised of the possibility of such damage. 83 84 5. CONTACT INFORMATION 85 86 Fraunhofer Institute for Integrated Circuits IIS 87 Attention: Audio and Multimedia Departments - FDK AAC LL 88 Am Wolfsmantel 33 89 91058 Erlangen, Germany 90 91 www.iis.fraunhofer.de/amm 92 amm-info@iis.fraunhofer.de 93 ----------------------------------------------------------------------------- */ 94 95 /*********************** MPEG surround decoder library ************************* 96 97 Author(s): 98 99 Description: interface - spatial specific config struct 100 101 *******************************************************************************/ 102 103 #ifndef SAC_DEC_SSC_STRUCT_H 104 #define SAC_DEC_SSC_STRUCT_H 105 106 #include "FDK_audio.h" 107 108 #define MAX_NUM_QMF_BANDS (128) 109 #define MAX_TIME_SLOTS 64 110 #define MAX_INPUT_CHANNELS 1 111 #define MAX_OUTPUT_CHANNELS \ 112 2 /* CAUTION: This does NOT restrict the number of \ 113 output channels exclusively! In addition it \ 114 affects the max number of bitstream and residual channels! */ 115 #define MAX_NUM_OTT (5) 116 #define MAX_NUM_TTT (0) 117 #define MAX_NUM_EXT_TYPES (8) 118 #define MAX_PARAMETER_BANDS (28) 119 #define MAX_PARAMETER_BANDS_LD (23) 120 121 #define MAX_NUM_XCHANNELS (6) 122 123 #define MAX_ARBITRARY_TREE_LEVELS (0) 124 125 typedef enum { 126 /* CAUTION: Do not change enum values! */ 127 SPATIALDEC_FREQ_RES_40 = 40, 128 SPATIALDEC_FREQ_RES_28 = 28, 129 SPATIALDEC_FREQ_RES_23 = 23, 130 SPATIALDEC_FREQ_RES_20 = 20, 131 SPATIALDEC_FREQ_RES_15 = 15, 132 SPATIALDEC_FREQ_RES_14 = 14, 133 SPATIALDEC_FREQ_RES_12 = 12, 134 SPATIALDEC_FREQ_RES_10 = 10, 135 SPATIALDEC_FREQ_RES_9 = 9, 136 SPATIALDEC_FREQ_RES_7 = 7, 137 SPATIALDEC_FREQ_RES_5 = 5, 138 SPATIALDEC_FREQ_RES_4 = 4 139 140 } SPATIALDEC_FREQ_RES; 141 142 typedef enum { 143 144 SPATIALDEC_QUANT_FINE_DEF = 0, 145 SPATIALDEC_QUANT_EDQ1 = 1, 146 SPATIALDEC_QUANT_EDQ2 = 2, 147 SPATIALDEC_QUANT_RSVD3 = 3, 148 SPATIALDEC_QUANT_RSVD4 = 4, 149 SPATIALDEC_QUANT_RSVD5 = 5, 150 SPATIALDEC_QUANT_RSVD6 = 6, 151 SPATIALDEC_QUANT_RSVD7 = 7 152 153 } SPATIALDEC_QUANT_MODE; 154 155 typedef enum { SPATIALDEC_MODE_RSVD7 = 7 } SPATIALDEC_TREE_CONFIG; 156 157 typedef enum { 158 159 SPATIALDEC_GAIN_MODE0 = 0, 160 SPATIALDEC_GAIN_RSVD1 = 1, 161 SPATIALDEC_GAIN_RSVD2 = 2, 162 SPATIALDEC_GAIN_RSVD3 = 3, 163 SPATIALDEC_GAIN_RSVD4 = 4, 164 SPATIALDEC_GAIN_RSVD5 = 5, 165 SPATIALDEC_GAIN_RSVD6 = 6, 166 SPATIALDEC_GAIN_RSVD7 = 7, 167 SPATIALDEC_GAIN_RSVD8 = 8, 168 SPATIALDEC_GAIN_RSVD9 = 9, 169 SPATIALDEC_GAIN_RSVD10 = 10, 170 SPATIALDEC_GAIN_RSVD11 = 11, 171 SPATIALDEC_GAIN_RSVD12 = 12, 172 SPATIALDEC_GAIN_RSVD13 = 13, 173 SPATIALDEC_GAIN_RSVD14 = 14, 174 SPATIALDEC_GAIN_RSVD15 = 15 175 176 } SPATIALDEC_FIXED_GAINS; 177 178 typedef enum { 179 180 SPATIALDEC_TS_TPNOWHITE = 0, 181 SPATIALDEC_TS_TPWHITE = 1, 182 SPATIALDEC_TS_TES = 2, 183 SPATIALDEC_TS_NOTS = 3, 184 SPATIALDEC_TS_RSVD4 = 4, 185 SPATIALDEC_TS_RSVD5 = 5, 186 SPATIALDEC_TS_RSVD6 = 6, 187 SPATIALDEC_TS_RSVD7 = 7, 188 SPATIALDEC_TS_RSVD8 = 8, 189 SPATIALDEC_TS_RSVD9 = 9, 190 SPATIALDEC_TS_RSVD10 = 10, 191 SPATIALDEC_TS_RSVD11 = 11, 192 SPATIALDEC_TS_RSVD12 = 12, 193 SPATIALDEC_TS_RSVD13 = 13, 194 SPATIALDEC_TS_RSVD14 = 14, 195 SPATIALDEC_TS_RSVD15 = 15 196 197 } SPATIALDEC_TS_CONF; 198 199 typedef enum { 200 201 SPATIALDEC_DECORR_MODE0 = 0, 202 SPATIALDEC_DECORR_MODE1 = 1, 203 SPATIALDEC_DECORR_MODE2 = 2, 204 SPATIALDEC_DECORR_RSVD3 = 3, 205 SPATIALDEC_DECORR_RSVD4 = 4, 206 SPATIALDEC_DECORR_RSVD5 = 5, 207 SPATIALDEC_DECORR_RSVD6 = 6, 208 SPATIALDEC_DECORR_RSVD7 = 7, 209 SPATIALDEC_DECORR_RSVD8 = 8, 210 SPATIALDEC_DECORR_RSVD9 = 9, 211 SPATIALDEC_DECORR_RSVD10 = 10, 212 SPATIALDEC_DECORR_RSVD11 = 11, 213 SPATIALDEC_DECORR_RSVD12 = 12, 214 SPATIALDEC_DECORR_RSVD13 = 13, 215 SPATIALDEC_DECORR_RSVD14 = 14, 216 SPATIALDEC_DECORR_RSVD15 = 15 217 218 } SPATIALDEC_DECORR_CONF; 219 220 typedef struct T_SPATIALDEC_OTT_CONF { 221 int nOttBands; 222 223 } SPATIALDEC_OTT_CONF; 224 225 typedef struct T_SPATIALDEC_RESIDUAL_CONF { 226 int bResidualPresent; 227 int nResidualBands; 228 229 } SPATIALDEC_RESIDUAL_CONF; 230 231 typedef struct T_SPATIAL_SPECIFIC_CONFIG { 232 UINT syntaxFlags; 233 int samplingFreq; 234 int nTimeSlots; 235 SPATIALDEC_FREQ_RES freqRes; 236 SPATIALDEC_TREE_CONFIG treeConfig; 237 SPATIALDEC_QUANT_MODE quantMode; 238 int bArbitraryDownmix; 239 240 int bResidualCoding; 241 SPATIALDEC_FIXED_GAINS bsFixedGainDMX; 242 243 SPATIALDEC_TS_CONF tempShapeConfig; 244 SPATIALDEC_DECORR_CONF decorrConfig; 245 246 int nInputChannels; /* derived from treeConfig */ 247 int nOutputChannels; /* derived from treeConfig */ 248 249 /* ott config */ 250 int nOttBoxes; /* derived from treeConfig */ 251 SPATIALDEC_OTT_CONF OttConfig[MAX_NUM_OTT]; /* dimension nOttBoxes */ 252 253 /* ttt config */ 254 int nTttBoxes; /* derived from treeConfig */ 255 256 /* residual config */ 257 SPATIALDEC_RESIDUAL_CONF 258 ResidualConfig[MAX_NUM_OTT + 259 MAX_NUM_TTT]; /* dimension (nOttBoxes + nTttBoxes) */ 260 261 int sacExtCnt; 262 int sacExtType[MAX_NUM_EXT_TYPES]; 263 int envQuantMode; 264 265 AUDIO_OBJECT_TYPE coreCodec; 266 267 UCHAR stereoConfigIndex; 268 UCHAR coreSbrFrameLengthIndex; /* Table 70 in ISO/IEC FDIS 23003-3:2011 */ 269 UCHAR bsHighRateMode; 270 UCHAR bsDecorrType; 271 UCHAR bsPseudoLr; 272 UCHAR bsPhaseCoding; 273 UCHAR bsOttBandsPhasePresent; 274 int bsOttBandsPhase; 275 276 SCHAR ottCLDdefault[MAX_NUM_OTT]; 277 UCHAR numOttBandsIPD; 278 UCHAR bitstreamOttBands[MAX_NUM_OTT]; 279 UCHAR numOttBands[MAX_NUM_OTT]; 280 281 } SPATIAL_SPECIFIC_CONFIG; 282 283 #endif 284