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+/* -----------------------------------------------------------------------------
+Software License for The Fraunhofer FDK AAC Codec Library for Android
+
+© Copyright  1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
+Forschung e.V. All rights reserved.
+
+ 1.    INTRODUCTION
+The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
+that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
+scheme for digital audio. This FDK AAC Codec software is intended to be used on
+a wide variety of Android devices.
+
+AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
+general perceptual audio codecs. AAC-ELD is considered the best-performing
+full-bandwidth communications codec by independent studies and is widely
+deployed. AAC has been standardized by ISO and IEC as part of the MPEG
+specifications.
+
+Patent licenses for necessary patent claims for the FDK AAC Codec (including
+those of Fraunhofer) may be obtained through Via Licensing
+(www.vialicensing.com) or through the respective patent owners individually for
+the purpose of encoding or decoding bit streams in products that are compliant
+with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
+Android devices already license these patent claims through Via Licensing or
+directly from the patent owners, and therefore FDK AAC Codec software may
+already be covered under those patent licenses when it is used for those
+licensed purposes only.
+
+Commercially-licensed AAC software libraries, including floating-point versions
+with enhanced sound quality, are also available from Fraunhofer. Users are
+encouraged to check the Fraunhofer website for additional applications
+information and documentation.
+
+2.    COPYRIGHT LICENSE
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted without payment of copyright license fees provided that you
+satisfy the following conditions:
+
+You must retain the complete text of this software license in redistributions of
+the FDK AAC Codec or your modifications thereto in source code form.
+
+You must retain the complete text of this software license in the documentation
+and/or other materials provided with redistributions of the FDK AAC Codec or
+your modifications thereto in binary form. You must make available free of
+charge copies of the complete source code of the FDK AAC Codec and your
+modifications thereto to recipients of copies in binary form.
+
+The name of Fraunhofer may not be used to endorse or promote products derived
+from this library without prior written permission.
+
+You may not charge copyright license fees for anyone to use, copy or distribute
+the FDK AAC Codec software or your modifications thereto.
+
+Your modified versions of the FDK AAC Codec must carry prominent notices stating
+that you changed the software and the date of any change. For modified versions
+of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
+must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
+AAC Codec Library for Android."
+
+3.    NO PATENT LICENSE
+
+NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
+limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
+Fraunhofer provides no warranty of patent non-infringement with respect to this
+software.
+
+You may use this FDK AAC Codec software or modifications thereto only for
+purposes that are authorized by appropriate patent licenses.
+
+4.    DISCLAIMER
+
+This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
+holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
+including but not limited to the implied warranties of merchantability and
+fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
+or consequential damages, including but not limited to procurement of substitute
+goods or services; loss of use, data, or profits, or business interruption,
+however caused and on any theory of liability, whether in contract, strict
+liability, or tort (including negligence), arising in any way out of the use of
+this software, even if advised of the possibility of such damage.
+
+5.    CONTACT INFORMATION
+
+Fraunhofer Institute for Integrated Circuits IIS
+Attention: Audio and Multimedia Departments - FDK AAC LL
+Am Wolfsmantel 33
+91058 Erlangen, Germany
+
+www.iis.fraunhofer.de/amm
+amm-info@iis.fraunhofer.de
+----------------------------------------------------------------------------- */
+
+/**************************** AAC decoder library ******************************
+
+   Author(s):   Josef Hoepfl
+
+   Description: Definition of constant tables
+
+*******************************************************************************/
+
+#ifndef AAC_ROM_H
+#define AAC_ROM_H
+
+#include "common_fix.h"
+#include "FDK_audio.h"
+#include "aacdec_hcr_types.h"
+#include "aacdec_hcrs.h"
+
+#define PCM_DEC FIXP_DBL
+#define MAXVAL_PCM_DEC MAXVAL_DBL
+#define MINVAL_PCM_DEC MINVAL_DBL
+#define FIXP_DBL2PCM_DEC(x) (x)
+#define PCM_DEC2FIXP_DBL(x) (x)
+#define PCM_DEC_BITS DFRACT_BITS
+#define PCM_DEC2FX_PCM(x) FX_DBL2FX_PCM(x)
+#define FX_PCM2PCM_DEC(x) FX_PCM2FX_DBL(x)
+
+#define AACDEC_MAX_CH_CONF 14
+#define AACDEC_CH_ELEMENTS_TAB_SIZE 7 /*!< Size of element tables */
+
+#define AAC_NF_NO_RANDOM_VAL \
+  512 /*!< Size of random number array for noise floor */
+
+#define INV_QUANT_TABLESIZE 256
+
+extern const FIXP_DBL InverseQuantTable[INV_QUANT_TABLESIZE + 1];
+extern const FIXP_DBL MantissaTable[4][14];
+extern const SCHAR ExponentTable[4][14];
+
+#define NUM_LD_COEF_512 1536
+#define NUM_LD_COEF_480 1440
+/* Window table partition exponents. */
+#define WTS0 (1)
+#define WTS1 (0)
+#define WTS2 (-2)
+extern const FIXP_WTB LowDelaySynthesis512[1536];
+extern const FIXP_WTB LowDelaySynthesis480[1440];
+extern const FIXP_WTB LowDelaySynthesis256[768];
+extern const FIXP_WTB LowDelaySynthesis240[720];
+extern const FIXP_WTB LowDelaySynthesis160[480];
+extern const FIXP_WTB LowDelaySynthesis128[384];
+extern const FIXP_WTB LowDelaySynthesis120[360];
+
+typedef struct {
+  const SHORT *sfbOffsetLong;
+  const SHORT *sfbOffsetShort;
+  UCHAR numberOfSfbLong;
+  UCHAR numberOfSfbShort;
+} SFB_INFO;
+
+extern const SFB_INFO sfbOffsetTables[5][16];
+
+/* Huffman tables */
+enum { HuffmanBits = 2, HuffmanEntries = (1 << HuffmanBits) };
+
+typedef struct {
+  const USHORT (*CodeBook)[HuffmanEntries];
+  UCHAR Dimension;
+  UCHAR numBits;
+  UCHAR Offset;
+} CodeBookDescription;
+
+extern const CodeBookDescription AACcodeBookDescriptionTable[13];
+extern const CodeBookDescription AACcodeBookDescriptionSCL;
+
+extern const STATEFUNC aStateConstant2State[];
+
+extern const SCHAR aCodebook2StartInt[];
+
+extern const UCHAR aMinOfCbPair[];
+extern const UCHAR aMaxOfCbPair[];
+
+extern const UCHAR aMaxCwLen[];
+extern const UCHAR aDimCb[];
+extern const UCHAR aDimCbShift[];
+extern const UCHAR aSignCb[];
+extern const UCHAR aCbPriority[];
+
+extern const UINT *aHuffTable[];
+extern const SCHAR *aQuantTable[];
+
+extern const USHORT aLargestAbsoluteValue[];
+
+extern const UINT aHuffTreeRvlcEscape[];
+extern const UINT aHuffTreeRvlCodewds[];
+
+extern const UCHAR tns_max_bands_tbl[13][2];
+
+extern const UCHAR tns_max_bands_tbl_480[13];
+extern const UCHAR tns_max_bands_tbl_512[13];
+
+#define FIXP_TCC FIXP_DBL
+
+extern const FIXP_TCC FDKaacDec_tnsCoeff3[8];
+extern const FIXP_TCC FDKaacDec_tnsCoeff4[16];
+
+extern const UCHAR FDKaacDec_tnsCoeff3_gain_ld[];
+extern const UCHAR FDKaacDec_tnsCoeff4_gain_ld[];
+
+extern const USHORT AacDec_randomSign[AAC_NF_NO_RANDOM_VAL / 16];
+
+extern const FIXP_DBL pow2_div24minus1[47];
+extern const int offsetTab[2][16];
+
+/* Channel mapping indices for time domain I/O.
+   The first dimension is the channel configuration index. */
+extern const UCHAR channelMappingTablePassthrough[15][8];
+extern const UCHAR channelMappingTableWAV[15][8];
+
+/* Lookup tables for elements in ER bitstream */
+extern const MP4_ELEMENT_ID elementsTab[AACDEC_MAX_CH_CONF]
+                                       [AACDEC_CH_ELEMENTS_TAB_SIZE];
+
+#define SF_FNA_COEFFS \
+  1 /* Compile-time prescaler for MDST-filter coefficients. */
+/* SF_FNA_COEFFS > 0 should only be considered for FIXP_DBL-coefficients  */
+/* (i.e. if CPLX_PRED_FILTER_16BIT is not defined).                       */
+/* With FIXP_DBL loss of precision is possible for SF_FNA_COEFFS > 11.    */
+
+#ifdef CPLX_PRED_FILTER_16BIT
+#define FIXP_FILT FIXP_SGL
+#define FILT(a) ((FL2FXCONST_SGL(a)) >> SF_FNA_COEFFS)
+#else
+#define FIXP_FILT FIXP_DBL
+#define FILT(a) ((FL2FXCONST_DBL(a)) >> SF_FNA_COEFFS)
+#endif
+
+extern const FIXP_FILT mdst_filt_coef_curr[20][3]; /* MDST-filter coefficient
+                                                      tables used for current
+                                                      window  */
+extern const FIXP_FILT mdst_filt_coef_prev[6][4];  /* MDST-filter coefficient
+                                                      tables used for previous
+                                                      window */
+
+#endif /* #ifndef AAC_ROM_H */