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+
+/* -----------------------------------------------------------------------------------------------------------
+Software License for The Fraunhofer FDK AAC Codec Library for Android
+
+© Copyright  1995 - 2012 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
+----------------------------------------------------------------------------------------------------------- */
+
+/*!
+  \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"
+
+#define SACDEC_ALIGNMENT_FIX
+
+typedef struct
+{
+  QMF_FILTER_BANK     AnalysiscQMF;
+  QMF_FILTER_BANK     SynthesisQMF;
+
+  SBR_CALCULATE_ENVELOPE  SbrCalculateEnvelope;
+  SBR_LPP_TRANS           LppTrans;
+
+  QMF_SCALE_FACTOR sbrScaleFactor;
+  QMF_SCALE_FACTOR sbrScaleFactorRight;
+
+  /*! Delayed spectral data needed for the dynamic framing of SBR. Not required in case of CLDFB */
+  FIXP_DBL * pSbrOverlapBuffer;
+
+  /* References to workbuffers */
+  FIXP_DBL * WorkBuffer1;
+  FIXP_DBL * WorkBuffer2;
+
+  /* QMF filter states */
+  FIXP_QAS   anaQmfStates[(320)];
+  FIXP_QSS * pSynQmfStates;
+
+  /* Reference pointer arrays for QMF time slots,
+     mixed among overlap and current slots. */
+  FIXP_DBL * QmfBufferReal[(((1024)/(32))+(6))];
+  FIXP_DBL * QmfBufferImag[(((1024)/(32))+(6))];
+  int useLP;
+
+  /* QMF domain extension time slot reference pointer array */
+
+  SBRDEC_DRC_CHANNEL  sbrDrcChannel;
+
+} 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
+SbrDecodeAndProcess (HANDLE_SBR_DEC hSbrDec,
+                     INT_PCM *timeIn,
+                     HANDLE_SBR_HEADER_DATA hHeaderData,
+                     HANDLE_SBR_FRAME_DATA hFrameData,
+                     HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData,
+                     int applyProcessing,
+                     int channelNr
+                     , UCHAR useLP
+                     );
+
+
+void
+SbrConstructTimeOutput (HANDLE_SBR_DEC hSbrDec,            /*!< handle to Decoder channel */
+                        INT_PCM *timeOut,                    /*!< pointer to output time signal */
+                        HANDLE_SBR_HEADER_DATA hHeaderData,/*!< Static control data */
+                        HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData,  /*!< Some control data of last frame */
+                        int channelNr
+                       ,UCHAR useLP
+                        );
+
+
+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 */
+         const int strideIn,                /*!< Time data traversal strideIn */
+         const 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
+        );
+
+
+
+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
+deleteSbrDec (SBR_CHANNEL * hSbrChannel);
+
+SBR_ERROR
+resetSbrDec (HANDLE_SBR_DEC hSbrDec,
+             HANDLE_SBR_HEADER_DATA hHeaderData,
+             HANDLE_SBR_PREV_FRAME_DATA hPrevFrameData,
+             const int useLP,
+             const int downsampleFac);
+
+#endif