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      1 
      2 /* -----------------------------------------------------------------------------------------------------------
      3 Software License for The Fraunhofer FDK AAC Codec Library for Android
      4 
      5  Copyright  1995 - 2012 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 /******************************************************************************
     85 
     86    Initial authors:      M. Lohwasser, M. Gayer
     87    Contents/description:
     88 
     89 ******************************************************************************/
     90 /*!
     91   \file
     92   \brief  Memory layout
     93   \author Markus Lohwasser
     94 */
     95 
     96 #include "aacEnc_ram.h"
     97 
     98   C_ALLOC_MEM (AACdynamic_RAM, FIXP_DBL, AAC_ENC_DYN_RAM_SIZE/sizeof(FIXP_DBL))
     99 
    100 /*
    101   Static memory areas, must not be overwritten in other sections of the decoder !
    102 */
    103 
    104 /*
    105  The structure AacEncoder contains all Encoder structures.
    106 */
    107 
    108 C_ALLOC_MEM (Ram_aacEnc_AacEncoder,           AAC_ENC,          1)
    109 
    110 
    111 /*
    112    The structure PSY_INTERNAl contains all psych configuration and data pointer.
    113    * PsyStatic holds last and current Psych data.
    114    * PsyInputBuffer contains time input. Signal is needed at the beginning of Psych.
    115      Memory can be reused after signal is in time domain.
    116    * PsyData contains spectral, nrg and threshold information. Necessary data are
    117      copied into PsyOut, so memory is available after leaving psych.
    118    * TnsData, ChaosMeasure, PnsData are temporarily necessary, e.g. use memory from
    119      PsyInputBuffer.
    120 */
    121 
    122 C_ALLOC_MEM2 (Ram_aacEnc_PsyElement, PSY_ELEMENT, 1, (6))
    123 
    124 C_ALLOC_MEM  (Ram_aacEnc_PsyInternal, PSY_INTERNAL, 1)
    125 C_ALLOC_MEM2 (Ram_aacEnc_PsyStatic,   PSY_STATIC,   1, (6))
    126 
    127 C_ALLOC_MEM2 (Ram_aacEnc_PsyInputBuffer, INT_PCM, MAX_INPUT_BUFFER_SIZE, (6))
    128 
    129   PSY_DYNAMIC *GetRam_aacEnc_PsyDynamic (int n, UCHAR* dynamic_RAM) {
    130       FDK_ASSERT(dynamic_RAM!=0);
    131       return ((PSY_DYNAMIC*) (dynamic_RAM + P_BUF_1 + n*sizeof(PSY_DYNAMIC)));
    132   }
    133 
    134   C_ALLOC_MEM (Ram_bsOutbuffer, UCHAR, OUTPUTBUFFER_SIZE)
    135 
    136 /*
    137    The structure PSY_OUT holds all psychoaccoustic data needed
    138    in quantization module
    139 */
    140 C_ALLOC_MEM2 (Ram_aacEnc_PsyOut,         PSY_OUT, 1, (1))
    141 
    142 C_ALLOC_MEM2 (Ram_aacEnc_PsyOutElements, PSY_OUT_ELEMENT, 1, (1)*(6))
    143 C_ALLOC_MEM2 (Ram_aacEnc_PsyOutChannel,  PSY_OUT_CHANNEL, 1, (1)*(6))
    144 
    145 
    146 /*
    147    The structure QC_STATE contains preinitialized settings and quantizer structures.
    148    * AdjustThreshold structure contains element-wise settings.
    149    * ElementBits contains elemnt-wise bit consumption settings.
    150    * When CRC is active, lookup table is necessary for fast crc calculation.
    151    * Bitcounter contains buffer to find optimal codebooks and minimal bit consumption.
    152      Values are temporarily, so dynamic memory can be used.
    153 */
    154 
    155 C_ALLOC_MEM (Ram_aacEnc_QCstate, QC_STATE, 1)
    156 C_ALLOC_MEM (Ram_aacEnc_AdjustThreshold, ADJ_THR_STATE, 1)
    157 
    158 C_ALLOC_MEM2 (Ram_aacEnc_AdjThrStateElement, ATS_ELEMENT, 1, (6))
    159 C_ALLOC_MEM2 (Ram_aacEnc_ElementBits, ELEMENT_BITS, 1, (6))
    160 C_ALLOC_MEM (Ram_aacEnc_BitCntrState, BITCNTR_STATE, 1)
    161 
    162   INT *GetRam_aacEnc_BitLookUp(int n, UCHAR* dynamic_RAM) {
    163     FDK_ASSERT(dynamic_RAM!=0);
    164     return ((INT*) (dynamic_RAM + P_BUF_1));
    165   }
    166   INT *GetRam_aacEnc_MergeGainLookUp(int n, UCHAR* dynamic_RAM) {
    167     FDK_ASSERT(dynamic_RAM!=0);
    168     return ((INT*) (dynamic_RAM + P_BUF_1 + sizeof(INT)*(MAX_SFB_LONG*(CODE_BOOK_ESC_NDX+1))));
    169   }
    170 
    171 
    172 /*
    173    The structure QC_OUT contains settings and structures holding all necessary information
    174    needed in bitstreamwriter.
    175 */
    176 
    177 C_ALLOC_MEM2 (Ram_aacEnc_QCout, QC_OUT, 1, (1))
    178 C_ALLOC_MEM2 (Ram_aacEnc_QCelement, QC_OUT_ELEMENT, 1, (1)*(6))
    179   QC_OUT_CHANNEL *GetRam_aacEnc_QCchannel (int n, UCHAR* dynamic_RAM) {
    180       FDK_ASSERT(dynamic_RAM!=0);
    181       return ((QC_OUT_CHANNEL*) (dynamic_RAM + P_BUF_0 + n*sizeof(QC_OUT_CHANNEL)));
    182   }
    183 
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