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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
+----------------------------------------------------------------------------------------------------------- */
+
+/******************************** MPEG Audio Encoder **************************
+
+   Initial author:       M. Werner
+   contents/description: Quantizing & coding data
+
+******************************************************************************/
+
+#ifndef _QC_DATA_H
+#define _QC_DATA_H
+
+
+#include "psy_const.h"
+#include "dyn_bits.h"
+#include "adj_thr_data.h"
+#include "line_pe.h"
+#include "FDK_audio.h"
+#include "interface.h"
+
+
+typedef enum {
+  QCDATA_BR_MODE_INVALID = -1,
+  QCDATA_BR_MODE_CBR     =  0,
+  QCDATA_BR_MODE_VBR_1   =  1, /* 32 kbps/channel */
+  QCDATA_BR_MODE_VBR_2   =  2, /* 40 kbps/channel */
+  QCDATA_BR_MODE_VBR_3   =  3, /* 48 kbps/channel */
+  QCDATA_BR_MODE_VBR_4   =  4, /* 64 kbps/channel */
+  QCDATA_BR_MODE_VBR_5   =  5, /* 96 kbps/channel */
+  QCDATA_BR_MODE_FF      =  6,  /* Fixed frame mode. */
+  QCDATA_BR_MODE_SFR     =  7  /* Superframe mode. */
+
+
+} QCDATA_BR_MODE;
+
+typedef struct {
+  MP4_ELEMENT_ID elType;
+  INT instanceTag;
+  INT nChannelsInEl;
+  INT ChannelIndex[2];
+  FIXP_DBL relativeBits;
+} ELEMENT_INFO;
+
+typedef struct {
+  CHANNEL_MODE encMode;
+  INT nChannels;
+  INT nChannelsEff;
+  INT nElements;
+  ELEMENT_INFO elInfo[(6)];
+} CHANNEL_MAPPING;
+
+typedef struct {
+  INT paddingRest;
+} PADDING;
+
+
+/* Quantizing & coding stage */
+
+struct QC_INIT{
+  CHANNEL_MAPPING* channelMapping;
+  INT sceCpe;      /* not used yet                         */
+  INT maxBits;     /* maximum number of bits in reservoir  */
+  INT averageBits; /* average number of bits we should use */
+  INT bitRes;
+  INT staticBits;  /* Bits per frame consumed by transport layers. */
+  QCDATA_BR_MODE bitrateMode;
+  INT meanPe;
+  INT chBitrate;
+  INT invQuant;
+  INT maxIterations; /* Maximum number of allowed iterations before FDKaacEnc_crashRecovery() is applied. */
+  FIXP_DBL maxBitFac;
+  INT bitrate;
+  INT nSubFrames; /* helper variable */
+  INT minBits;    /* minimal number of bits in one frame*/
+
+  PADDING padding;
+};
+
+typedef struct
+{
+  FIXP_DBL      mdctSpectrum[(1024)];
+
+  SHORT         quantSpec[(1024)];
+
+  UINT          maxValueInSfb[MAX_GROUPED_SFB];
+  INT           scf[MAX_GROUPED_SFB];
+  INT           globalGain;
+  SECTION_DATA  sectionData;
+
+  FIXP_DBL      sfbFormFactorLdData[MAX_GROUPED_SFB];
+
+  FIXP_DBL      sfbThresholdLdData[MAX_GROUPED_SFB];
+  FIXP_DBL      sfbMinSnrLdData[MAX_GROUPED_SFB];
+  FIXP_DBL      sfbEnergyLdData[MAX_GROUPED_SFB];
+  FIXP_DBL      sfbEnergy[MAX_GROUPED_SFB];
+  FIXP_DBL      sfbWeightedEnergyLdData[MAX_GROUPED_SFB];
+
+  FIXP_DBL      sfbEnFacLd[MAX_GROUPED_SFB];
+
+  FIXP_DBL      sfbSpreadEnergy[MAX_GROUPED_SFB];
+
+} QC_OUT_CHANNEL;
+
+
+typedef struct
+{
+  EXT_PAYLOAD_TYPE  type;  /* type of the extension payload */
+  INT    nPayloadBits;     /* size of the payload */
+  UCHAR *pPayload;         /* pointer to payload */
+
+} QC_OUT_EXTENSION;
+
+
+typedef struct
+{
+  INT          staticBitsUsed; /* for verification purposes */
+  INT          dynBitsUsed;    /* for verification purposes */
+
+  INT          extBitsUsed;    /* bit consumption of extended fill elements */
+  INT          nExtensions;    /* number of extension payloads for this element */
+  QC_OUT_EXTENSION extension[(1)];  /* reffering extension payload */
+
+  INT          grantedDynBits;
+
+  INT          grantedPe;
+  INT          grantedPeCorr;
+
+  PE_DATA      peData;
+
+  QC_OUT_CHANNEL *qcOutChannel[(2)];
+
+
+} QC_OUT_ELEMENT;
+
+typedef struct
+{
+  QC_OUT_ELEMENT    *qcElement[(6)];
+  QC_OUT_CHANNEL    *pQcOutChannels[(6)];
+  QC_OUT_EXTENSION   extension[(2+2)];  /* global extension payload */
+  INT          nExtensions;       /* number of extension payloads for this AU */
+  INT          maxDynBits;        /* maximal allowed dynamic bits in frame */
+  INT          grantedDynBits;    /* granted dynamic bits in frame */
+  INT          totFillBits;       /* fill bits */
+  INT          elementExtBits;    /* element associated extension payload bits, e.g. sbr, drc ... */
+  INT          globalExtBits;     /* frame/au associated extension payload bits (anc data ...) */
+  INT          staticBits;        /* aac side info bits */
+
+  INT          totalNoRedPe;
+  INT          totalGrantedPeCorr;
+
+  INT          usedDynBits;       /* number of dynamic bits in use */
+  INT          alignBits;         /* AU alignment bits */
+  INT          totalBits;         /* sum of static, dyn, sbr, fill, align and dse bits */
+
+} QC_OUT;
+
+typedef struct {
+  INT chBitrateEl;                    /* channel bitrate in element (totalbitrate*el_relativeBits/el_channels) */
+  INT maxBitsEl;                      /* used in crash recovery */
+  INT bitResLevelEl;                  /* update bitreservoir level in each call of FDKaacEnc_QCMain */
+  INT maxBitResBitsEl;                /* nEffChannels*6144 - averageBitsInFrame */
+  FIXP_DBL relativeBitsEl;            /* Bits relative to total Bits*/
+} ELEMENT_BITS;
+
+typedef struct
+{
+  /* this is basically struct QC_INIT */
+
+  INT globHdrBits;
+  INT maxBitsPerFrame;   /* maximal allowed bits per frame, 6144*nChannelsEff */
+  INT minBitsPerFrame;   /* minimal allowd bits per fram, superframing - DRM */
+  INT nElements;
+  QCDATA_BR_MODE bitrateMode;
+  INT bitDistributenMode; /* 0: full bitreservoir, 1: reduced bitreservoir, 2: disabled bitreservoir */
+  INT bitResTot;
+  INT bitResTotMax;
+  INT maxIterations;      /* Maximum number of allowed iterations before FDKaacEnc_crashRecovery() is applied. */
+  INT invQuant;
+
+  FIXP_DBL vbrQualFactor;
+  FIXP_DBL maxBitFac;
+
+  PADDING padding;
+
+  ELEMENT_BITS  *elementBits[(6)];
+  BITCNTR_STATE *hBitCounter;
+  ADJ_THR_STATE *hAdjThr;
+
+} QC_STATE;
+
+#endif /* _QC_DATA_H */
+
+
+
+