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 /******************* Library for basic calculation routines ******************** 96 97 Author(s): 98 99 Description: 100 101 *******************************************************************************/ 102 103 #ifndef FDK_ARCHDEF_H 104 #define FDK_ARCHDEF_H 105 106 /* Unify some few toolchain specific defines to avoid having large "or" macro 107 * contraptions all over the source code. */ 108 109 /* Use single macro (the GCC built in macro) for architecture identification 110 * independent of the particular toolchain */ 111 #if defined(__i386__) || defined(__i486__) || defined(__i586__) || \ 112 defined(__i686__) || (defined(_MSC_VER) && defined(_M_IX86)) || \ 113 (defined(_MSC_VER) && defined(_M_X64)) || defined(__x86_64__) 114 #define __x86__ 115 #endif 116 117 #if defined(_M_ARM) && !defined(__arm__) || defined(__aarch64__) 118 #define __arm__ 119 #endif 120 121 #if (__TARGET_ARCH_ARM == 5) || defined(__TARGET_FEATURE_DSPMUL) || \ 122 (_M_ARM == 5) || defined(__ARM_ARCH_5TEJ__) || defined(__ARM_ARCH_7EM__) 123 /* Define __ARM_ARCH_5TE__ if armv5te features are supported */ 124 #define __ARM_ARCH_5TE__ 125 #endif 126 127 #if (__TARGET_ARCH_ARM == 6) || defined(__ARM_ARCH_6J__) || \ 128 defined(__ARM_ARCH_6ZK__) 129 /* Define __ARM_ARCH_6__ if the armv6 intructions are being supported. */ 130 #define __ARM_ARCH_5TE__ 131 #define __ARM_ARCH_6__ 132 #endif 133 134 #if defined(__TARGET_ARCH_7_R) || defined(__ARM_ARCH_7R__) 135 /* Define __ARM_ARCH_7_A__ if the armv7 intructions are being supported. */ 136 #define __ARM_ARCH_5TE__ 137 #define __ARM_ARCH_6__ 138 #define __ARM_ARCH_7_R__ 139 #endif 140 141 #if defined(__TARGET_ARCH_7_A) || defined(__ARM_ARCH_7A__) || \ 142 ((__ARM_ARCH == 8) && (__ARM_32BIT_STATE == 1)) 143 /* Define __ARM_ARCH_7_A__ if the armv7 intructions are being supported. */ 144 #define __ARM_ARCH_5TE__ 145 #define __ARM_ARCH_6__ 146 #define __ARM_ARCH_7_A__ 147 #endif 148 149 #if defined(__TARGET_ARCH_7_M) || defined(__ARM_ARCH_7_M__) 150 /* Define __ARM_ARCH_7M__ if the ARMv7-M instructions are being supported, e.g. 151 * Cortex-M3. */ 152 #define __ARM_ARCH_7M__ 153 #endif 154 155 #if defined(__TARGET_ARCH_7E_M) || defined(__ARM_ARCH_7E_M__) 156 /* Define __ARM_ARCH_7EM__ if the ARMv7-ME instructions are being supported, 157 * e.g. Cortex-M4. */ 158 #define __ARM_ARCH_7EM__ 159 #endif 160 161 #if defined(__aarch64__) 162 #define __ARM_ARCH_8__ 163 #endif 164 165 #ifdef _M_ARM 166 #include "cmnintrin.h" 167 #include "armintr.h" 168 #endif 169 170 /* Define preferred Multiplication type */ 171 172 #if defined(__mips__) 173 #define ARCH_PREFER_MULT_16x16 174 #undef SINETABLE_16BIT 175 #undef POW2COEFF_16BIT 176 #undef LDCOEFF_16BIT 177 #undef WINDOWTABLE_16BIT 178 179 #elif defined(__arm__) && defined(__ARM_ARCH_8__) 180 #define ARCH_PREFER_MULT_32x16 181 #define SINETABLE_16BIT 182 #define POW2COEFF_16BIT 183 #define LDCOEFF_16BIT 184 #define WINDOWTABLE_16BIT 185 186 #elif defined(__arm__) && defined(__ARM_ARCH_5TE__) 187 #define ARCH_PREFER_MULT_32x16 188 #define SINETABLE_16BIT 189 #define POW2COEFF_16BIT 190 #define LDCOEFF_16BIT 191 #define WINDOWTABLE_16BIT 192 193 #elif defined(__arm__) && defined(__ARM_ARCH_7M__) 194 #define ARCH_PREFER_MULT_32x16 195 #define SINETABLE_16BIT 196 #define POW2COEFF_16BIT 197 #define LDCOEFF_16BIT 198 #define WINDOWTABLE_16BIT 199 200 #elif defined(__arm__) && defined(__ARM_ARCH_7EM__) 201 #define ARCH_PREFER_MULT_32x32 202 #define ARCH_PREFER_MULT_32x16 203 #define SINETABLE_16BIT 204 #define POW2COEFF_16BIT 205 #define LDCOEFF_16BIT 206 #define WINDOWTABLE_16BIT 207 208 #elif defined(__arm__) && !defined(__ARM_ARCH_5TE__) 209 #define ARCH_PREFER_MULT_16x16 210 #undef SINETABLE_16BIT 211 #undef WINDOWTABLE_16BIT 212 #undef POW2COEFF_16BIT 213 #undef LDCOEFF_16BIT 214 215 #elif defined(__x86__) 216 #define ARCH_PREFER_MULT_32x16 217 #define SINETABLE_16BIT 218 #define WINDOWTABLE_16BIT 219 #define POW2COEFF_16BIT 220 #define LDCOEFF_16BIT 221 222 #else 223 #warning >>>> Please set architecture characterization defines for your platform (FDK_HIGH_PERFORMANCE)! <<<< 224 225 #endif /* Architecture switches */ 226 227 #ifdef SINETABLE_16BIT 228 #define FIXP_STB FIXP_SGL /* STB sinus Tab used in transformation */ 229 #define FIXP_STP FIXP_SPK 230 #define STC(a) (FX_DBL2FXCONST_SGL(a)) 231 #else 232 #define FIXP_STB FIXP_DBL 233 #define FIXP_STP FIXP_DPK 234 #define STC(a) ((FIXP_DBL)(LONG)(a)) 235 #endif /* defined(SINETABLE_16BIT) */ 236 237 #define STCP(cos, sin) \ 238 { \ 239 { STC(cos), STC(sin) } \ 240 } 241 242 #ifdef WINDOWTABLE_16BIT 243 #define FIXP_WTB FIXP_SGL /* single FIXP_SGL values */ 244 #define FX_DBL2FX_WTB(x) FX_DBL2FX_SGL(x) 245 #define FIXP_WTP FIXP_SPK /* packed FIXP_SGL values */ 246 #define WTC(a) FX_DBL2FXCONST_SGL(a) 247 #else /* SINETABLE_16BIT */ 248 #define FIXP_WTB FIXP_DBL 249 #define FX_DBL2FX_WTB(x) (x) 250 #define FIXP_WTP FIXP_DPK 251 #define WTC(a) (FIXP_DBL)(a) 252 #endif /* SINETABLE_16BIT */ 253 254 #define WTCP(a, b) \ 255 { \ 256 { WTC(a), WTC(b) } \ 257 } 258 259 #endif /* FDK_ARCHDEF_H */ 260