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 /**************************** AAC encoder library ****************************** 96 97 Author(s): M. Werner 98 99 Description: Threshold compensation 100 101 *******************************************************************************/ 102 103 #ifndef ADJ_THR_H 104 #define ADJ_THR_H 105 106 #include "common_fix.h" 107 #include "adj_thr_data.h" 108 #include "qc_data.h" 109 #include "line_pe.h" 110 #include "interface.h" 111 112 /***************************************************************************** 113 functionname: FDKaacEnc_peCalculation 114 description: 115 *****************************************************************************/ 116 void FDKaacEnc_peCalculation(PE_DATA *const peData, 117 const PSY_OUT_CHANNEL *const psyOutChannel[(2)], 118 QC_OUT_CHANNEL *const qcOutChannel[(2)], 119 const struct TOOLSINFO *const toolsInfo, 120 ATS_ELEMENT *const adjThrStateElement, 121 const INT nChannels); 122 123 /***************************************************************************** 124 functionname: FDKaacEnc_AdjThrNew 125 description: allocate ADJ_THR_STATE 126 *****************************************************************************/ 127 INT FDKaacEnc_AdjThrNew(ADJ_THR_STATE **phAdjThr, INT nElements); 128 129 /***************************************************************************** 130 functionname: FDKaacEnc_AdjThrInit 131 description: initialize ADJ_THR_STATE 132 *****************************************************************************/ 133 void FDKaacEnc_AdjThrInit( 134 ADJ_THR_STATE *const hAdjThr, const INT meanPe, const INT invQuant, 135 const CHANNEL_MAPPING *const channelMapping, const INT sampleRate, 136 const INT totalBitrate, const INT isLowDelay, 137 const AACENC_BITRES_MODE bitResMode, const INT dZoneQuantEnable, 138 const INT bitDistributionMode, const FIXP_DBL vbrQualFactor); 139 140 /***************************************************************************** 141 functionname: FDKaacEnc_DistributeBits 142 description: 143 *****************************************************************************/ 144 void FDKaacEnc_DistributeBits( 145 ADJ_THR_STATE *adjThrState, ATS_ELEMENT *AdjThrStateElement, 146 PSY_OUT_CHANNEL *psyOutChannel[(2)], PE_DATA *peData, INT *grantedPe, 147 INT *grantedPeCorr, const INT nChannels, const INT commonWindow, 148 const INT avgBits, const INT bitresBits, const INT maxBitresBits, 149 const FIXP_DBL maxBitFac, const AACENC_BITRES_MODE bitResMode); 150 151 /***************************************************************************** 152 functionname: FDKaacEnc_AdjustThresholds 153 description: adjust thresholds 154 *****************************************************************************/ 155 void FDKaacEnc_AdjustThresholds( 156 ADJ_THR_STATE *const hAdjThr, QC_OUT_ELEMENT *const qcElement[((8))], 157 QC_OUT *const qcOut, const PSY_OUT_ELEMENT *const psyOutElement[((8))], 158 const INT CBRbitrateMode, const CHANNEL_MAPPING *const cm); 159 160 /***************************************************************************** 161 functionname: FDKaacEnc_AdjThrClose 162 description: 163 *****************************************************************************/ 164 void FDKaacEnc_AdjThrClose(ADJ_THR_STATE **hAdjThr); 165 166 #endif 167
