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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
+----------------------------------------------------------------------------- */
+
+/**************************** SBR decoder library ******************************
+
+   Author(s):
+
+   Description:
+
+*******************************************************************************/
+
+/*!
+  \file
+  \brief  Sbr decoder
+*/
+#ifndef SBR_DEC_H
+#define SBR_DEC_H
+
+#include "sbrdecoder.h"
+
+#include "lpp_tran.h"
+#include "qmf.h"
+#include "env_calc.h"
+#include "FDK_audio.h"
+
+#include "sbrdec_drc.h"
+
+#include "pvc_dec.h"
+
+#include "hbe.h"
+
+enum SBRDEC_QMF_SKIP {
+  qmfSkipNothing = 0,
+  qmfSkipAnalysis = 1 << 0,
+  qmfSkipSynthesis = 1 << 1
+};
+
+typedef struct {
+  SBR_CALCULATE_ENVELOPE SbrCalculateEnvelope;
+  SBR_LPP_TRANS LppTrans;
+  PVC_STATIC_DATA PvcStaticData;
+
+  /* do scale handling in sbr an not in qmf */
+  SHORT scale_ov;
+  SHORT scale_lb;
+  SHORT scale_hbe;
+
+  SHORT prev_frame_lSbr;
+  SHORT prev_frame_hbeSbr;
+
+  int codecFrameSize;
+
+  HANDLE_HBE_TRANSPOSER hHBE;
+
+  HANDLE_FDK_QMF_DOMAIN_IN qmfDomainInCh;
+  HANDLE_FDK_QMF_DOMAIN_OUT qmfDomainOutCh;
+
+  SBRDEC_DRC_CHANNEL sbrDrcChannel;
+
+#if (SBRDEC_MAX_HB_FADE_FRAMES > 0)
+  INT highBandFadeCnt; /* counter for fading in high-band signal smoothly */
+
+#endif
+  FIXP_DBL **tmp_memory; /* shared memory between hbeLightTimeDelayBuffer and
+                            hQmfHBESlotsReal */
+
+  FIXP_DBL **hQmfHBESlotsReal;
+  FIXP_DBL **hQmfHBESlotsImag;
+
+  FIXP_DBL **codecQMFBufferReal;
+  FIXP_DBL **codecQMFBufferImag;
+  UCHAR savedStates;
+  int applySbrProc_old;
+} SBR_DEC;
+
+typedef SBR_DEC *HANDLE_SBR_DEC;
+
+typedef struct {
+  SBR_FRAME_DATA frameData[(1) + 1];
+  SBR_PREV_FRAME_DATA prevFrameData;
+  SBR_DEC SbrDec;
+} SBR_CHANNEL;
+
+typedef SBR_CHANNEL *HANDLE_SBR_CHANNEL;
+
+void sbr_dec(
+    HANDLE_SBR_DEC hSbrDec,             /*!< handle to Decoder channel */
+    INT_PCM *timeIn,                    /*!< pointer to input time signal */
+    INT_PCM *timeOut,                   /*!< pointer to output time signal */
+    HANDLE_SBR_DEC hSbrDecRight,        /*!< handle to Decoder channel right */
+    INT_PCM *timeOutRight,              /*!< pointer to output time signal */
+    INT strideOut,                      /*!< Time data traversal strideOut */
+    HANDLE_SBR_HEADER_DATA hHeaderData, /*!< Static control data */
+    HANDLE_SBR_FRAME_DATA hFrameData,   /*!< Control data of current frame */
+    HANDLE_SBR_PREV_FRAME_DATA
+        hPrevFrameData,        /*!< Some control data of last frame */
+    const int applyProcessing, /*!< Flag for SBR operation */
+    HANDLE_PS_DEC h_ps_d, const UINT flags, const int codecFrameSize);
+
+SBR_ERROR
+createSbrDec(SBR_CHANNEL *hSbrChannel, HANDLE_SBR_HEADER_DATA hHeaderData,
+             TRANSPOSER_SETTINGS *pSettings, const int downsampleFac,
+             const UINT qmfFlags, const UINT flags, const int overlap, int chan,
+             int codecFrameSize);
+
+int deleteSbrDec(SBR_CHANNEL *hSbrChannel);
+
+SBR_ERROR
+resetSbrDec(HANDLE_SBR_DEC hSbrDec, HANDLE_SBR_HEADER_DATA hHeaderData,
+            HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData, const int downsampleFac,
+            const UINT flags, HANDLE_SBR_FRAME_DATA hFrameData);
+
+#endif