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 /*************************** Fraunhofer IIS FDK Tools ********************** 85 86 Author(s): M. Lohwasser, M. Gayer 87 Description: fixed point intrinsics 88 89 ******************************************************************************/ 90 91 #if !defined(__FIXMADD_H__) 92 #define __FIXMADD_H__ 93 94 #include "FDK_archdef.h" 95 #include "machine_type.h" 96 #include "fixmul.h" 97 98 #if defined(__arm__) 99 #include "arm/fixmadd_arm.h" 100 101 #elif defined(__mips__) /* cppp replaced: elif */ 102 #include "mips/fixmadd_mips.h" 103 104 #endif /* all cores */ 105 106 /************************************************************************* 107 ************************************************************************* 108 Software fallbacks for missing functions. 109 ************************************************************************** 110 **************************************************************************/ 111 112 /* Divide by two versions. */ 113 114 #if !defined(FUNCTION_fixmadddiv2_DD) 115 inline FIXP_DBL fixmadddiv2_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) 116 { return (x + fMultDiv2 (a, b)); } 117 #endif 118 119 #if !defined(FUNCTION_fixmadddiv2_SD) 120 inline FIXP_DBL fixmadddiv2_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { 121 #ifdef FUNCTION_fixmadddiv2_DS 122 return fixmadddiv2_DS(x, b, a); 123 #else 124 return fixmadddiv2_DD(x, FX_SGL2FX_DBL(a), b); 125 #endif 126 } 127 #endif 128 129 #if !defined(FUNCTION_fixmadddiv2_DS) 130 inline FIXP_DBL fixmadddiv2_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { 131 #ifdef FUNCTION_fixmadddiv2_SD 132 return fixmadddiv2_SD(x, b, a); 133 #else 134 return fixmadddiv2_DD(x, a, FX_SGL2FX_DBL(b)); 135 #endif 136 } 137 #endif 138 139 #if !defined(FUNCTION_fixmadddiv2_SS) 140 inline FIXP_DBL fixmadddiv2_SS (FIXP_DBL x, const FIXP_SGL a, const FIXP_SGL b) 141 { return x + fMultDiv2(a,b); } 142 #endif 143 144 #if !defined(FUNCTION_fixmsubdiv2_DD) 145 inline FIXP_DBL fixmsubdiv2_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) 146 { return (x - fMultDiv2 (a, b)); } 147 #endif 148 149 #if !defined(FUNCTION_fixmsubdiv2_SD) 150 inline FIXP_DBL fixmsubdiv2_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { 151 #ifdef FUNCTION_fixmsubdiv2_DS 152 return fixmsubdiv2_DS(x, b, a); 153 #else 154 return fixmsubdiv2_DD(x, FX_SGL2FX_DBL(a), b); 155 #endif 156 } 157 #endif 158 159 #if !defined(FUNCTION_fixmsubdiv2_DS) 160 inline FIXP_DBL fixmsubdiv2_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { 161 #ifdef FUNCTION_fixmsubdiv2_SD 162 return fixmsubdiv2_SD(x, b, a); 163 #else 164 return fixmsubdiv2_DD(x, a, FX_SGL2FX_DBL(b)); 165 #endif 166 } 167 #endif 168 169 #if !defined(FUNCTION_fixmsubdiv2_SS) 170 inline FIXP_DBL fixmsubdiv2_SS (FIXP_DBL x, const FIXP_SGL a, const FIXP_SGL b) 171 { return x - fMultDiv2(a,b); } 172 #endif 173 174 175 #if !defined(FUNCTION_fixmadddiv2BitExact_DD) 176 #define FUNCTION_fixmadddiv2BitExact_DD 177 inline FIXP_DBL fixmadddiv2BitExact_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) { 178 return x + fMultDiv2BitExact(a, b); 179 } 180 #endif 181 #if !defined(FUNCTION_fixmadddiv2BitExact_SD) 182 #define FUNCTION_fixmadddiv2BitExact_SD 183 inline FIXP_DBL fixmadddiv2BitExact_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { 184 #ifdef FUNCTION_fixmadddiv2BitExact_DS 185 return fixmadddiv2BitExact_DS(x, b, a); 186 #else 187 return x + fMultDiv2BitExact(a, b); 188 #endif 189 } 190 #endif 191 #if !defined(FUNCTION_fixmadddiv2BitExact_DS) 192 #define FUNCTION_fixmadddiv2BitExact_DS 193 inline FIXP_DBL fixmadddiv2BitExact_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { 194 #ifdef FUNCTION_fixmadddiv2BitExact_SD 195 return fixmadddiv2BitExact_SD(x, b, a); 196 #else 197 return x + fMultDiv2BitExact(a, b); 198 #endif 199 } 200 #endif 201 202 #if !defined(FUNCTION_fixmsubdiv2BitExact_DD) 203 #define FUNCTION_fixmsubdiv2BitExact_DD 204 inline FIXP_DBL fixmsubdiv2BitExact_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) { 205 return x - fMultDiv2BitExact(a, b); 206 } 207 #endif 208 #if !defined(FUNCTION_fixmsubdiv2BitExact_SD) 209 #define FUNCTION_fixmsubdiv2BitExact_SD 210 inline FIXP_DBL fixmsubdiv2BitExact_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { 211 #ifdef FUNCTION_fixmsubdiv2BitExact_DS 212 return fixmsubdiv2BitExact_DS(x, b, a); 213 #else 214 return x - fMultDiv2BitExact(a, b); 215 #endif 216 } 217 #endif 218 #if !defined(FUNCTION_fixmsubdiv2BitExact_DS) 219 #define FUNCTION_fixmsubdiv2BitExact_DS 220 inline FIXP_DBL fixmsubdiv2BitExact_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { 221 #ifdef FUNCTION_fixmsubdiv2BitExact_SD 222 return fixmsubdiv2BitExact_SD(x, b, a); 223 #else 224 return x - fMultDiv2BitExact(a, b); 225 #endif 226 } 227 #endif 228 229 /* Normal versions */ 230 231 #if !defined(FUNCTION_fixmadd_DD) 232 inline FIXP_DBL fixmadd_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) 233 { return fixmadddiv2_DD(x,a,b)<<1; } 234 #endif 235 #if !defined(FUNCTION_fixmadd_SD) 236 inline FIXP_DBL fixmadd_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { 237 #ifdef FUNCTION_fixmadd_DS 238 return fixmadd_DS(x, b, a); 239 #else 240 return fixmadd_DD(x, FX_SGL2FX_DBL(a), b); 241 #endif 242 } 243 #endif 244 #if !defined(FUNCTION_fixmadd_DS) 245 inline FIXP_DBL fixmadd_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { 246 #ifdef FUNCTION_fixmadd_SD 247 return fixmadd_SD(x, b, a); 248 #else 249 return fixmadd_DD(x, a, FX_SGL2FX_DBL(b)); 250 #endif 251 } 252 #endif 253 #if !defined(FUNCTION_fixmadd_SS) 254 inline FIXP_DBL fixmadd_SS (FIXP_DBL x, const FIXP_SGL a, const FIXP_SGL b) 255 { return (x + fMultDiv2(a,b))<<1; } 256 #endif 257 258 #if !defined(FUNCTION_fixmsub_DD) 259 inline FIXP_DBL fixmsub_DD (FIXP_DBL x, const FIXP_DBL a, const FIXP_DBL b) 260 { return fixmsubdiv2_DD(x,a,b)<<1; } 261 #endif 262 #if !defined(FUNCTION_fixmsub_SD) 263 inline FIXP_DBL fixmsub_SD (FIXP_DBL x, const FIXP_SGL a, const FIXP_DBL b) { 264 #ifdef FUNCTION_fixmsub_DS 265 return fixmsub_DS(x, b, a); 266 #else 267 return fixmsub_DD(x, FX_SGL2FX_DBL(a), b); 268 #endif 269 } 270 #endif 271 #if !defined(FUNCTION_fixmsub_DS) 272 inline FIXP_DBL fixmsub_DS (FIXP_DBL x, const FIXP_DBL a, const FIXP_SGL b) { 273 #ifdef FUNCTION_fixmsub_SD 274 return fixmsub_SD(x, b, a); 275 #else 276 return fixmsub_DD(x, a, FX_SGL2FX_DBL(b)); 277 #endif 278 } 279 #endif 280 #if !defined(FUNCTION_fixmsub_SS) 281 inline FIXP_DBL fixmsub_SS (FIXP_DBL x, const FIXP_SGL a, const FIXP_SGL b) 282 { return (x - fMultDiv2(a,b))<<1; } 283 #endif 284 285 #if !defined(FUNCTION_fixpow2adddiv2_D) 286 inline INT fixpadddiv2_D (FIXP_DBL x, const FIXP_DBL a) 287 { return (x + fPow2Div2(a)); } 288 #endif 289 #if !defined(FUNCTION_fixpow2add_D) 290 inline INT fixpadd_D (FIXP_DBL x, const FIXP_DBL a) 291 { return (x + fPow2(a)); } 292 #endif 293 294 #if !defined(FUNCTION_fixpow2adddiv2_S) 295 inline INT fixpadddiv2_S (FIXP_DBL x, const FIXP_SGL a) 296 { return (x + fPow2Div2(a)); } 297 #endif 298 #if !defined(FUNCTION_fixpow2add_S) 299 inline INT fixpadd_S (FIXP_DBL x, const FIXP_SGL a) 300 { return (x + fPow2(a)); } 301 #endif 302 303 304 305 #endif // __FIXMADD_H__ 306 307
