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): 87 Description: fixed point intrinsics 88 89 ******************************************************************************/ 90 91 #include "common_fix.h" 92 93 #if !defined(__CPLX_Mult_H__) 94 #define __CPLX_Mult_H__ 95 96 #if defined(__CC_ARM) || defined(__arm__) || defined(_M_ARM) /* cppp replaced: elif */ 97 #include "arm/cplx_mul.h" 98 99 #elif defined(__GNUC__) && defined(__mips__) /* cppp replaced: elif */ 100 #include "mips/cplx_mul.h" 101 102 #endif /* #if defined all cores: bfin, arm, etc. */ 103 104 /* ############################################################################# */ 105 106 /* Fallback generic implementations */ 107 108 #if !defined(FUNCTION_cplxMultDiv2_32x16X2) 109 #define FUNCTION_cplxMultDiv2_32x16X2 110 111 inline void cplxMultDiv2( FIXP_DBL *c_Re, 112 FIXP_DBL *c_Im, 113 const FIXP_DBL a_Re, 114 const FIXP_DBL a_Im, 115 const FIXP_SGL b_Re, 116 const FIXP_SGL b_Im) 117 { 118 *c_Re = fMultDiv2(a_Re,b_Re) - fMultDiv2(a_Im,b_Im); 119 *c_Im = fMultDiv2(a_Re,b_Im) + fMultDiv2(a_Im,b_Re); 120 } 121 #endif 122 123 #if !defined(FUNCTION_cplxMultDiv2_32x16) 124 #define FUNCTION_cplxMultDiv2_32x16 125 126 inline void cplxMultDiv2( FIXP_DBL *c_Re, 127 FIXP_DBL *c_Im, 128 const FIXP_DBL a_Re, 129 const FIXP_DBL a_Im, 130 const FIXP_SPK w ) 131 { 132 cplxMultDiv2(c_Re, c_Im, a_Re, a_Im, w.v.re, w.v.im); 133 } 134 #endif 135 136 #if !defined(FUNCTION_cplxMultAddDiv2_32x16X2) 137 #define FUNCTION_cplxMultAddDiv2_32x16X2 138 139 inline void cplxMultAddDiv2( FIXP_DBL *c_Re, 140 FIXP_DBL *c_Im, 141 const FIXP_DBL a_Re, 142 const FIXP_DBL a_Im, 143 const FIXP_SGL b_Re, 144 const FIXP_SGL b_Im) 145 { 146 *c_Re += fMultDiv2(a_Re,b_Re) - fMultDiv2(a_Im,b_Im); 147 *c_Im += fMultDiv2(a_Re,b_Im) + fMultDiv2(a_Im,b_Re); 148 } 149 #endif 150 151 #if !defined(FUNCTION_cplxMultSubDiv2_32x16X2) 152 #define FUNCTION_cplxMultSubDiv2_32x16X2 153 154 inline void cplxMultSubDiv2( FIXP_DBL *c_Re, 155 FIXP_DBL *c_Im, 156 const FIXP_DBL a_Re, 157 const FIXP_DBL a_Im, 158 const FIXP_SGL b_Re, 159 const FIXP_SGL b_Im) 160 { 161 *c_Re -= fMultDiv2(a_Re,b_Re) - fMultDiv2(a_Im,b_Im); 162 *c_Im -= fMultDiv2(a_Re,b_Im) + fMultDiv2(a_Im,b_Re); 163 } 164 #endif 165 166 #if !defined(FUNCTION_cplxMultDiv2_32x32X2) 167 #define FUNCTION_cplxMultDiv2_32x32X2 168 169 inline void cplxMultDiv2( FIXP_DBL *c_Re, 170 FIXP_DBL *c_Im, 171 const FIXP_DBL a_Re, 172 const FIXP_DBL a_Im, 173 const FIXP_DBL b_Re, 174 const FIXP_DBL b_Im) 175 { 176 *c_Re = fMultDiv2(a_Re,b_Re) - fMultDiv2(a_Im,b_Im); 177 *c_Im = fMultDiv2(a_Re,b_Im) + fMultDiv2(a_Im,b_Re); 178 } 179 #endif 180 181 #if !defined(FUNCTION_cplxMultDiv2_32x32) 182 #define FUNCTION_cplxMultDiv2_32x32 183 184 inline void cplxMultDiv2( FIXP_DBL *c_Re, 185 FIXP_DBL *c_Im, 186 const FIXP_DBL a_Re, 187 const FIXP_DBL a_Im, 188 const FIXP_DPK w) 189 { 190 cplxMultDiv2(c_Re, c_Im, a_Re, a_Im, w.v.re, w.v.im); 191 } 192 #endif 193 194 #if !defined(FUNCTION_cplxMultSubDiv2_32x32X2) 195 #define FUNCTION_cplxMultSubDiv2_32x32X2 196 197 inline void cplxMultSubDiv2( FIXP_DBL *c_Re, 198 FIXP_DBL *c_Im, 199 const FIXP_DBL a_Re, 200 const FIXP_DBL a_Im, 201 const FIXP_DBL b_Re, 202 const FIXP_DBL b_Im) 203 { 204 *c_Re -= fMultDiv2(a_Re,b_Re) - fMultDiv2(a_Im,b_Im); 205 *c_Im -= fMultDiv2(a_Re,b_Im) + fMultDiv2(a_Im,b_Re); 206 } 207 #endif 208 209 /* ############################################################################# */ 210 211 #if !defined(FUNCTION_cplxMult_32x16X2) 212 #define FUNCTION_cplxMult_32x16X2 213 214 inline void cplxMult( FIXP_DBL *c_Re, 215 FIXP_DBL *c_Im, 216 const FIXP_DBL a_Re, 217 const FIXP_DBL a_Im, 218 const FIXP_SGL b_Re, 219 const FIXP_SGL b_Im) 220 { 221 *c_Re = fMult(a_Re,b_Re) - fMult(a_Im,b_Im); 222 *c_Im = fMult(a_Re,b_Im) + fMult(a_Im,b_Re); 223 } 224 #endif 225 226 #if !defined(FUNCTION_cplxMult_32x16) 227 #define FUNCTION_cplxMult_32x16 228 229 inline void cplxMult( FIXP_DBL *c_Re, 230 FIXP_DBL *c_Im, 231 const FIXP_DBL a_Re, 232 const FIXP_DBL a_Im, 233 const FIXP_SPK w ) 234 { 235 cplxMult(c_Re, c_Im, a_Re, a_Im, w.v.re, w.v.im); 236 } 237 #endif 238 239 #if !defined(FUNCTION_cplxMult_32x32X2) 240 #define FUNCTION_cplxMult_32x32X2 241 242 inline void cplxMult( FIXP_DBL *c_Re, 243 FIXP_DBL *c_Im, 244 const FIXP_DBL a_Re, 245 const FIXP_DBL a_Im, 246 const FIXP_DBL b_Re, 247 const FIXP_DBL b_Im) 248 { 249 *c_Re = fMult(a_Re,b_Re) - fMult(a_Im,b_Im); 250 *c_Im = fMult(a_Re,b_Im) + fMult(a_Im,b_Re); 251 } 252 #endif 253 254 #if !defined(FUNCTION_cplxMult_32x32) 255 #define FUNCTION_cplxMult_32x32 256 inline void cplxMult( FIXP_DBL *c_Re, 257 FIXP_DBL *c_Im, 258 const FIXP_DBL a_Re, 259 const FIXP_DBL a_Im, 260 const FIXP_DPK w) 261 { 262 cplxMult(c_Re, c_Im, a_Re, a_Im, w.v.re, w.v.im); 263 } 264 #endif 265 266 /* ############################################################################# */ 267 268 #endif /* __CPLX_Mult_H__ */ 269 270
