1 /* ----------------------------------------------------------------------------- 2 Software License for The Fraunhofer FDK AAC Codec Library for Android 3 4 Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Frderung 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 (at) iis.fraunhofer.de 93 ----------------------------------------------------------------------------- */ 94 95 /************************* MPEG-D DRC decoder library ************************** 96 97 Author(s): 98 99 Description: 100 101 *******************************************************************************/ 102 103 #include "drcDec_types.h" 104 #include "drcDec_rom.h" 105 106 const SCHAR deltaGain_codingProfile_0_1_huffman[24][2] = { 107 {1, 2}, {3, 4}, {-63, -65}, {5, -66}, {-64, 6}, {-80, 7}, 108 {8, 9}, {-68, 10}, {11, 12}, {-56, -67}, {-61, 13}, {-62, -69}, 109 {14, 15}, {16, -72}, {-71, 17}, {-70, -60}, {18, -59}, {19, 20}, 110 {21, -79}, {-57, -73}, {22, -58}, {-76, 23}, {-75, -74}, {-78, -77}}; 111 112 const SCHAR deltaGain_codingProfile_2_huffman[48][2] = { 113 {1, 2}, {3, 4}, {5, 6}, {7, 8}, {9, 10}, {11, 12}, 114 {13, -65}, {14, -64}, {15, -66}, {16, -67}, {17, 18}, {19, -68}, 115 {20, -63}, {-69, 21}, {-59, 22}, {-61, -62}, {-60, 23}, {24, -58}, 116 {-70, -57}, {-56, -71}, {25, 26}, {27, -55}, {-72, 28}, {-54, 29}, 117 {-53, 30}, {-73, -52}, {31, -74}, {32, 33}, {-75, 34}, {-76, 35}, 118 {-51, 36}, {-78, 37}, {-77, 38}, {-96, 39}, {-48, 40}, {-50, -79}, 119 {41, 42}, {-80, -81}, {-82, 43}, {44, -49}, {45, -84}, {-83, -89}, 120 {-86, 46}, {-90, -85}, {-91, -93}, {-92, 47}, {-88, -87}, {-95, -94}}; 121 122 const FIXP_SGL slopeSteepness[] = {FL2FXCONST_SGL(-3.0518f / (float)(1 << 2)), 123 FL2FXCONST_SGL(-1.2207f / (float)(1 << 2)), 124 FL2FXCONST_SGL(-0.4883f / (float)(1 << 2)), 125 FL2FXCONST_SGL(-0.1953f / (float)(1 << 2)), 126 FL2FXCONST_SGL(-0.0781f / (float)(1 << 2)), 127 FL2FXCONST_SGL(-0.0312f / (float)(1 << 2)), 128 FL2FXCONST_SGL(-0.005f / (float)(1 << 2)), 129 FL2FXCONST_SGL(0.0f / (float)(1 << 2)), 130 FL2FXCONST_SGL(0.005f / (float)(1 << 2)), 131 FL2FXCONST_SGL(0.0312f / (float)(1 << 2)), 132 FL2FXCONST_SGL(0.0781f / (float)(1 << 2)), 133 FL2FXCONST_SGL(0.1953f / (float)(1 << 2)), 134 FL2FXCONST_SGL(0.4883f / (float)(1 << 2)), 135 FL2FXCONST_SGL(1.2207f / (float)(1 << 2)), 136 FL2FXCONST_SGL(3.0518f / (float)(1 << 2))}; 137 138 const SCHAR slopeSteepness_huffman[14][2] = { 139 {1, -57}, {-58, 2}, {3, 4}, {5, 6}, {7, -56}, 140 {8, -60}, {-61, -55}, {9, -59}, {10, -54}, {-64, 11}, 141 {-51, 12}, {-62, -50}, {-63, 13}, {-52, -53}}; 142 143 const FIXP_DBL downmixCoeff[] = { 144 FL2FXCONST_DBL(1.0000000000 / (float)(1 << 2)), 145 FL2FXCONST_DBL(0.9440608763 / (float)(1 << 2)), 146 FL2FXCONST_DBL(0.8912509381 / (float)(1 << 2)), 147 FL2FXCONST_DBL(0.8413951416 / (float)(1 << 2)), 148 FL2FXCONST_DBL(0.7943282347 / (float)(1 << 2)), 149 FL2FXCONST_DBL(0.7498942093 / (float)(1 << 2)), 150 FL2FXCONST_DBL(0.7079457844 / (float)(1 << 2)), 151 FL2FXCONST_DBL(0.6683439176 / (float)(1 << 2)), 152 FL2FXCONST_DBL(0.6309573445 / (float)(1 << 2)), 153 FL2FXCONST_DBL(0.5956621435 / (float)(1 << 2)), 154 FL2FXCONST_DBL(0.5623413252 / (float)(1 << 2)), 155 FL2FXCONST_DBL(0.5308844442 / (float)(1 << 2)), 156 FL2FXCONST_DBL(0.5011872336 / (float)(1 << 2)), 157 FL2FXCONST_DBL(0.4216965034 / (float)(1 << 2)), 158 FL2FXCONST_DBL(0.3548133892 / (float)(1 << 2)), 159 FL2FXCONST_DBL(0.0000000000 / (float)(1 << 2))}; 160 161 const FIXP_DBL downmixCoeffV1[] = { 162 FL2FXCONST_DBL(3.1622776602 / (float)(1 << 2)), 163 FL2FXCONST_DBL(1.9952623150 / (float)(1 << 2)), 164 FL2FXCONST_DBL(1.6788040181 / (float)(1 << 2)), 165 FL2FXCONST_DBL(1.4125375446 / (float)(1 << 2)), 166 FL2FXCONST_DBL(1.1885022274 / (float)(1 << 2)), 167 FL2FXCONST_DBL(1.0000000000 / (float)(1 << 2)), 168 FL2FXCONST_DBL(0.9440608763 / (float)(1 << 2)), 169 FL2FXCONST_DBL(0.8912509381 / (float)(1 << 2)), 170 FL2FXCONST_DBL(0.8413951416 / (float)(1 << 2)), 171 FL2FXCONST_DBL(0.7943282347 / (float)(1 << 2)), 172 FL2FXCONST_DBL(0.7498942093 / (float)(1 << 2)), 173 FL2FXCONST_DBL(0.7079457844 / (float)(1 << 2)), 174 FL2FXCONST_DBL(0.6683439176 / (float)(1 << 2)), 175 FL2FXCONST_DBL(0.6309573445 / (float)(1 << 2)), 176 FL2FXCONST_DBL(0.5956621435 / (float)(1 << 2)), 177 FL2FXCONST_DBL(0.5623413252 / (float)(1 << 2)), 178 FL2FXCONST_DBL(0.5308844442 / (float)(1 << 2)), 179 FL2FXCONST_DBL(0.5011872336 / (float)(1 << 2)), 180 FL2FXCONST_DBL(0.4731512590 / (float)(1 << 2)), 181 FL2FXCONST_DBL(0.4466835922 / (float)(1 << 2)), 182 FL2FXCONST_DBL(0.4216965034 / (float)(1 << 2)), 183 FL2FXCONST_DBL(0.3981071706 / (float)(1 << 2)), 184 FL2FXCONST_DBL(0.3548133892 / (float)(1 << 2)), 185 FL2FXCONST_DBL(0.3162277660 / (float)(1 << 2)), 186 FL2FXCONST_DBL(0.2818382931 / (float)(1 << 2)), 187 FL2FXCONST_DBL(0.2511886432 / (float)(1 << 2)), 188 FL2FXCONST_DBL(0.1778279410 / (float)(1 << 2)), 189 FL2FXCONST_DBL(0.1000000000 / (float)(1 << 2)), 190 FL2FXCONST_DBL(0.0562341325 / (float)(1 << 2)), 191 FL2FXCONST_DBL(0.0316227766 / (float)(1 << 2)), 192 FL2FXCONST_DBL(0.0100000000 / (float)(1 << 2)), 193 FL2FXCONST_DBL(0.0000000000 / (float)(1 << 2))}; 194 195 const CUSTOM_DRC_CHAR_SIGMOID cicpDrcCharSigmoidLeft[] = { 196 {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), 197 FL2FXCONST_SGL(0.0f / (float)(1 << 2)), 198 FL2FXCONST_SGL(9.0f / (float)(1 << 5)), 0}, /* 1 */ 199 {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), 200 FL2FXCONST_SGL(0.2f / (float)(1 << 2)), 201 FL2FXCONST_SGL(9.0f / (float)(1 << 5)), 0}, /* 2 */ 202 {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), 203 FL2FXCONST_SGL(0.4f / (float)(1 << 2)), 204 FL2FXCONST_SGL(9.0f / (float)(1 << 5)), 0}, /* 3 */ 205 {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), 206 FL2FXCONST_SGL(0.6f / (float)(1 << 2)), 207 FL2FXCONST_SGL(9.0f / (float)(1 << 5)), 0}, /* 4 */ 208 {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), 209 FL2FXCONST_SGL(0.8f / (float)(1 << 2)), 210 FL2FXCONST_SGL(6.0f / (float)(1 << 5)), 0}, /* 5 */ 211 {FL2FXCONST_SGL(32.0f / (float)(1 << 6)), 212 FL2FXCONST_SGL(1.0f / (float)(1 << 2)), 213 FL2FXCONST_SGL(5.0f / (float)(1 << 5)), 0}, /* 6 */ 214 }; 215 216 const CUSTOM_DRC_CHAR_SIGMOID cicpDrcCharSigmoidRight[] = { 217 {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), 218 FL2FXCONST_SGL(0.0f / (float)(1 << 2)), 219 FL2FXCONST_SGL(12.0f / (float)(1 << 5)), 0}, /* 1 */ 220 {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), 221 FL2FXCONST_SGL(0.2f / (float)(1 << 2)), 222 FL2FXCONST_SGL(12.0f / (float)(1 << 5)), 0}, /* 2 */ 223 {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), 224 FL2FXCONST_SGL(0.4f / (float)(1 << 2)), 225 FL2FXCONST_SGL(12.0f / (float)(1 << 5)), 0}, /* 3 */ 226 {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), 227 FL2FXCONST_SGL(0.6f / (float)(1 << 2)), 228 FL2FXCONST_SGL(10.0f / (float)(1 << 5)), 0}, /* 4 */ 229 {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), 230 FL2FXCONST_SGL(0.8f / (float)(1 << 2)), 231 FL2FXCONST_SGL(8.0f / (float)(1 << 5)), 0}, /* 5 */ 232 {FL2FXCONST_SGL(-32.0f / (float)(1 << 6)), 233 FL2FXCONST_SGL(1.0f / (float)(1 << 2)), 234 FL2FXCONST_SGL(6.0f / (float)(1 << 5)), 0}, /* 6 */ 235 }; 236 237 const CUSTOM_DRC_CHAR_NODES cicpDrcCharNodesLeft[] = { 238 {2, 239 {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), 240 FL2FXCONST_SGL(-41.0f / (float)(1 << 7)), 241 FL2FXCONST_SGL(-53.0f / (float)(1 << 7))}, 242 {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 243 FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 244 FL2FXCONST_SGL(6.0f / (float)(1 << 7))}}, /* 7 */ 245 {1, 246 {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), 247 FL2FXCONST_SGL(-43.0f / (float)(1 << 7))}, 248 {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 249 FL2FXCONST_SGL(6.0f / (float)(1 << 7))}}, /* 8 */ 250 {2, 251 {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), 252 FL2FXCONST_SGL(-41.0f / (float)(1 << 7)), 253 FL2FXCONST_SGL(-65.0f / (float)(1 << 7))}, 254 {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 255 FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 256 FL2FXCONST_SGL(12.0f / (float)(1 << 7))}}, /* 9 */ 257 {1, 258 {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), 259 FL2FXCONST_SGL(-55.0f / (float)(1 << 7))}, 260 {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 261 FL2FXCONST_SGL(12.0f / (float)(1 << 7))}}, /* 10 */ 262 {1, 263 {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), 264 FL2FXCONST_SGL(-50.0f / (float)(1 << 7))}, 265 {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 266 FL2FXCONST_SGL(15.0f / (float)(1 << 7))}} /* 11 */ 267 }; 268 269 const CUSTOM_DRC_CHAR_NODES cicpDrcCharNodesRight[] = { 270 {4, 271 {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), 272 FL2FXCONST_SGL(-21.0f / (float)(1 << 7)), 273 FL2FXCONST_SGL(-11.0f / (float)(1 << 7)), 274 FL2FXCONST_SGL(9.0f / (float)(1 << 7)), 275 FL2FXCONST_SGL(19.0f / (float)(1 << 7))}, 276 {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 277 FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 278 FL2FXCONST_SGL(-5.0f / (float)(1 << 7)), 279 FL2FXCONST_SGL(-24.0f / (float)(1 << 7)), 280 FL2FXCONST_SGL(-34.0f / (float)(1 << 7))}}, /* 7 */ 281 {4, 282 {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), 283 FL2FXCONST_SGL(-26.0f / (float)(1 << 7)), 284 FL2FXCONST_SGL(-16.0f / (float)(1 << 7)), 285 FL2FXCONST_SGL(4.0f / (float)(1 << 7)), 286 FL2FXCONST_SGL(14.0f / (float)(1 << 7))}, 287 {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 288 FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 289 FL2FXCONST_SGL(-5.0f / (float)(1 << 7)), 290 FL2FXCONST_SGL(-24.0f / (float)(1 << 7)), 291 FL2FXCONST_SGL(-34.0f / (float)(1 << 7))}}, /* 8 */ 292 {3, 293 {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), 294 FL2FXCONST_SGL(-21.0f / (float)(1 << 7)), 295 FL2FXCONST_SGL(9.0f / (float)(1 << 7)), 296 FL2FXCONST_SGL(29.0f / (float)(1 << 7))}, 297 {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 298 FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 299 FL2FXCONST_SGL(-15.0f / (float)(1 << 7)), 300 FL2FXCONST_SGL(-35.0f / (float)(1 << 7))}}, /* 9 */ 301 {4, 302 {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), 303 FL2FXCONST_SGL(-26.0f / (float)(1 << 7)), 304 FL2FXCONST_SGL(-16.0f / (float)(1 << 7)), 305 FL2FXCONST_SGL(4.0f / (float)(1 << 7)), 306 FL2FXCONST_SGL(14.0f / (float)(1 << 7))}, 307 {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 308 FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 309 FL2FXCONST_SGL(-5.0f / (float)(1 << 7)), 310 FL2FXCONST_SGL(-24.0f / (float)(1 << 7)), 311 FL2FXCONST_SGL(-34.0f / (float)(1 << 7))}}, /* 10 */ 312 {4, 313 {FL2FXCONST_SGL(-31.0f / (float)(1 << 7)), 314 FL2FXCONST_SGL(-26.0f / (float)(1 << 7)), 315 FL2FXCONST_SGL(-16.0f / (float)(1 << 7)), 316 FL2FXCONST_SGL(4.0f / (float)(1 << 7)), 317 FL2FXCONST_SGL(14.0f / (float)(1 << 7))}, 318 {FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 319 FL2FXCONST_SGL(0.0f / (float)(1 << 7)), 320 FL2FXCONST_SGL(-5.0f / (float)(1 << 7)), 321 FL2FXCONST_SGL(-24.0f / (float)(1 << 7)), 322 FL2FXCONST_SGL(-34.0f / (float)(1 << 7))}} /* 11 */ 323 }; 324
