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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  Main SBR structs definitions  
+*/
+
+#ifndef __SBR_H
+#define __SBR_H
+
+#include "fram_gen.h"
+#include "bit_sbr.h"
+#include "tran_det.h"
+#include "code_env.h"
+#include "env_est.h"
+#include "cmondata.h"
+
+#include "qmf.h"
+#include "resampler.h"
+
+#include "ton_corr.h"
+
+
+/* SBR bitstream delay */
+  #define DELAY_FRAMES 2
+
+typedef struct {
+    struct ENV_CHANNEL        hEnvChannel;
+    //INT_PCM                  *pDSOutBuffer;            /**< Pointer to downsampled audio output of SBR encoder */
+    DOWNSAMPLER               downSampler;
+
+} SBR_CHANNEL;
+typedef SBR_CHANNEL* HANDLE_SBR_CHANNEL;
+
+typedef struct {
+    HANDLE_SBR_CHANNEL        sbrChannel[2];
+    QMF_FILTER_BANK          *hQmfAnalysis[2];
+    SBR_CONFIG_DATA           sbrConfigData;
+    SBR_HEADER_DATA           sbrHeaderData;
+    SBR_BITSTREAM_DATA        sbrBitstreamData;
+    COMMON_DATA               CmonData;
+    INT                       dynXOverFreqDelay[5];    /**< to delay a frame (I don't like it that much that way - hrc) */
+    SBR_ELEMENT_INFO          elInfo;
+
+    UCHAR                     payloadDelayLine[1+DELAY_FRAMES][MAX_PAYLOAD_SIZE];
+    UINT                      payloadDelayLineSize[1+DELAY_FRAMES];                 /* Sizes in bits */
+
+} SBR_ELEMENT;
+typedef SBR_ELEMENT* HANDLE_SBR_ELEMENT;
+
+struct SBR_ENCODER
+{
+  HANDLE_SBR_ELEMENT   sbrElement[(6)];
+  HANDLE_SBR_CHANNEL   pSbrChannel[(6)];
+  QMF_FILTER_BANK      QmfAnalysis[(6)];
+  DOWNSAMPLER          lfeDownSampler;
+  int                  lfeChIdx;                 /* -1 default for no lfe, else assign channel index */
+  int                  noElements;               /* Number of elements */
+  int                  nChannels;                /* Total channel count across all elements. */
+  int                  frameSize;                /* SBR framelength. */
+  int                  bufferOffset;             /* Offset for SBR parameter extraction in time domain input buffer. */
+  int                  downsampledOffset;        /* Offset of downsampled/mixed output for core encoder. */
+  int                  downmixSize;              /* Size in samples of downsampled/mixed output for core encoder. */
+  int                  fTimeDomainDownsampling;  /* Flag signalling time domain downsampling instead of QMF downsampling. */
+  int                  nBitstrDelay;             /* Amount of SBR frames to be delayed in bitstream domain. */
+  INT                  estimateBitrate;          /* estimate bitrate of SBR encoder */
+  INT                  inputDataDelay;           /* delay caused by downsampler, in/out buffer at sbrEncoder_EncodeFrame */
+
+  UCHAR* dynamicRam;
+  UCHAR* pSBRdynamic_RAM;
+
+  HANDLE_PARAMETRIC_STEREO  hParametricStereo;
+  QMF_FILTER_BANK           qmfSynthesisPS;
+
+  /* parameters describing allocation volume of present instance */
+  INT                  maxElements;
+  INT                  maxChannels;
+  INT                  supportPS;
+
+} ;
+
+
+#endif /* __SBR_H */