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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 encoder library ******************************
+
+   Author(s):   M. Schug / A. Groeschel
+
+   Description: threshold calculations
+
+*******************************************************************************/
+
+#ifndef ADJ_THR_DATA_H
+#define ADJ_THR_DATA_H
+
+#include "psy_const.h"
+
+typedef enum {
+  AACENC_BD_MODE_INTER_ELEMENT = 0,
+  AACENC_BD_MODE_INTRA_ELEMENT = 1
+} AACENC_BIT_DISTRIBUTION_MODE;
+
+typedef enum {
+  AACENC_BR_MODE_FULL = 0,
+  AACENC_BR_MODE_REDUCED = 1,
+  AACENC_BR_MODE_DISABLED = 2
+} AACENC_BITRES_MODE;
+
+typedef struct {
+  FIXP_DBL clipSaveLow, clipSaveHigh;
+  FIXP_DBL minBitSave, maxBitSave;
+  FIXP_DBL clipSpendLow, clipSpendHigh;
+  FIXP_DBL minBitSpend, maxBitSpend;
+} BRES_PARAM;
+
+typedef struct {
+  INT modifyMinSnr;
+  INT startSfbL, startSfbS;
+} AH_PARAM;
+
+typedef struct {
+  FIXP_DBL maxRed;
+  FIXP_DBL startRatio;
+  FIXP_DBL maxRatio;
+  FIXP_DBL redRatioFac;
+  FIXP_DBL redOffs;
+} MINSNR_ADAPT_PARAM;
+
+typedef struct {
+  /* parameters for bitreservoir control */
+  INT peMin, peMax;
+  /* constant offset to pe               */
+  INT peOffset;
+  /* constant PeFactor */
+  FIXP_DBL bits2PeFactor_m;
+  INT bits2PeFactor_e;
+  /* avoid hole parameters               */
+  AH_PARAM ahParam;
+  /* parameters for adaptation of minSnr */
+  MINSNR_ADAPT_PARAM minSnrAdaptParam;
+
+  /* values for correction of pe */
+  INT peLast;
+  INT dynBitsLast;
+  FIXP_DBL peCorrectionFactor_m;
+  INT peCorrectionFactor_e;
+
+  /* vbr encoding */
+  FIXP_DBL vbrQualFactor;
+  FIXP_DBL chaosMeasureOld;
+
+  /* threshold weighting */
+  FIXP_DBL chaosMeasureEnFac[(2)];
+  INT lastEnFacPatch[(2)];
+
+} ATS_ELEMENT;
+
+typedef struct {
+  BRES_PARAM bresParamLong, bresParamShort;
+  ATS_ELEMENT* adjThrStateElem[((8))];
+  AACENC_BIT_DISTRIBUTION_MODE bitDistributionMode;
+  INT maxIter2ndGuess;
+} ADJ_THR_STATE;
+
+#endif