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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 encoder library ******************************
+
+   Author(s):
+
+   Description:
+
+*******************************************************************************/
+
+/*!
+  \file
+  \brief  SBR bit writing $Revision: 92790 $
+*/
+#ifndef BIT_SBR_H
+#define BIT_SBR_H
+
+#include "sbr_def.h"
+#include "cmondata.h"
+#include "fram_gen.h"
+
+struct SBR_ENV_DATA;
+
+struct SBR_BITSTREAM_DATA {
+  INT TotalBits;
+  INT PayloadBits;
+  INT FillBits;
+  INT HeaderActive;
+  INT HeaderActiveDelay; /**< sbr payload and its header is delayed depending on
+                            encoder configuration*/
+  INT NrSendHeaderData;  /**< input from commandline */
+  INT CountSendHeaderData; /**< modulo count. If < 0 then no counting is done
+                              (no SBR headers) */
+  INT rightBorderFIX;      /**< force VARFIX or FIXFIX frames */
+};
+
+typedef struct SBR_BITSTREAM_DATA *HANDLE_SBR_BITSTREAM_DATA;
+
+struct SBR_HEADER_DATA {
+  AMP_RES sbr_amp_res;
+  INT sbr_start_frequency;
+  INT sbr_stop_frequency;
+  INT sbr_xover_band;
+  INT sbr_noise_bands;
+  INT sbr_data_extra;
+  INT header_extra_1;
+  INT header_extra_2;
+  INT sbr_lc_stereo_mode;
+  INT sbr_limiter_bands;
+  INT sbr_limiter_gains;
+  INT sbr_interpol_freq;
+  INT sbr_smoothing_length;
+  INT alterScale;
+  INT freqScale;
+
+  /*
+    element of channelpairelement
+  */
+  INT coupling;
+  INT prev_coupling;
+
+  /*
+    element of singlechannelelement
+  */
+};
+typedef struct SBR_HEADER_DATA *HANDLE_SBR_HEADER_DATA;
+
+struct SBR_ENV_DATA {
+  INT sbr_xpos_ctrl;
+  FREQ_RES freq_res_fixfix[2];
+  UCHAR fResTransIsLow;
+
+  INVF_MODE sbr_invf_mode;
+  INVF_MODE sbr_invf_mode_vec[MAX_NUM_NOISE_VALUES];
+
+  XPOS_MODE sbr_xpos_mode;
+
+  INT ienvelope[MAX_ENVELOPES][MAX_FREQ_COEFFS];
+
+  INT codeBookScfLavBalance;
+  INT codeBookScfLav;
+  const INT *hufftableTimeC;
+  const INT *hufftableFreqC;
+  const UCHAR *hufftableTimeL;
+  const UCHAR *hufftableFreqL;
+
+  const INT *hufftableLevelTimeC;
+  const INT *hufftableBalanceTimeC;
+  const INT *hufftableLevelFreqC;
+  const INT *hufftableBalanceFreqC;
+  const UCHAR *hufftableLevelTimeL;
+  const UCHAR *hufftableBalanceTimeL;
+  const UCHAR *hufftableLevelFreqL;
+  const UCHAR *hufftableBalanceFreqL;
+
+  const UCHAR *hufftableNoiseTimeL;
+  const INT *hufftableNoiseTimeC;
+  const UCHAR *hufftableNoiseFreqL;
+  const INT *hufftableNoiseFreqC;
+
+  const UCHAR *hufftableNoiseLevelTimeL;
+  const INT *hufftableNoiseLevelTimeC;
+  const UCHAR *hufftableNoiseBalanceTimeL;
+  const INT *hufftableNoiseBalanceTimeC;
+  const UCHAR *hufftableNoiseLevelFreqL;
+  const INT *hufftableNoiseLevelFreqC;
+  const UCHAR *hufftableNoiseBalanceFreqL;
+  const INT *hufftableNoiseBalanceFreqC;
+
+  HANDLE_SBR_GRID hSbrBSGrid;
+
+  INT noHarmonics;
+  INT addHarmonicFlag;
+  UCHAR addHarmonic[MAX_FREQ_COEFFS];
+
+  /* calculated helper vars */
+  INT si_sbr_start_env_bits_balance;
+  INT si_sbr_start_env_bits;
+  INT si_sbr_start_noise_bits_balance;
+  INT si_sbr_start_noise_bits;
+
+  INT noOfEnvelopes;
+  INT noScfBands[MAX_ENVELOPES];
+  INT domain_vec[MAX_ENVELOPES];
+  INT domain_vec_noise[MAX_ENVELOPES];
+  SCHAR sbr_noise_levels[MAX_FREQ_COEFFS];
+  INT noOfnoisebands;
+
+  INT balance;
+  AMP_RES init_sbr_amp_res;
+  AMP_RES currentAmpResFF;
+  FIXP_DBL
+  ton_HF[SBR_GLOBAL_TONALITY_VALUES]; /* tonality is scaled by
+                                         2^19/0.524288f (fract part of
+                                         RELAXATION) */
+  FIXP_DBL global_tonality;
+
+  /* extended data */
+  INT extended_data;
+  INT extension_size;
+  INT extension_id;
+  UCHAR extended_data_buffer[SBR_EXTENDED_DATA_MAX_CNT];
+
+  UCHAR ldGrid;
+};
+typedef struct SBR_ENV_DATA *HANDLE_SBR_ENV_DATA;
+
+INT FDKsbrEnc_WriteEnvSingleChannelElement(
+    struct SBR_HEADER_DATA *sbrHeaderData,
+    struct T_PARAMETRIC_STEREO *hParametricStereo,
+    struct SBR_BITSTREAM_DATA *sbrBitstreamData,
+    struct SBR_ENV_DATA *sbrEnvData, struct COMMON_DATA *cmonData,
+    UINT sbrSyntaxFlags);
+
+INT FDKsbrEnc_WriteEnvChannelPairElement(
+    struct SBR_HEADER_DATA *sbrHeaderData,
+    struct T_PARAMETRIC_STEREO *hParametricStereo,
+    struct SBR_BITSTREAM_DATA *sbrBitstreamData,
+    struct SBR_ENV_DATA *sbrEnvDataLeft, struct SBR_ENV_DATA *sbrEnvDataRight,
+    struct COMMON_DATA *cmonData, UINT sbrSyntaxFlags);
+
+INT FDKsbrEnc_CountSbrChannelPairElement(
+    struct SBR_HEADER_DATA *sbrHeaderData,
+    struct T_PARAMETRIC_STEREO *hParametricStereo,
+    struct SBR_BITSTREAM_DATA *sbrBitstreamData,
+    struct SBR_ENV_DATA *sbrEnvDataLeft, struct SBR_ENV_DATA *sbrEnvDataRight,
+    struct COMMON_DATA *cmonData, UINT sbrSyntaxFlags);
+
+/* debugging and tuning functions */
+
+/*#define SBR_ENV_STATISTICS */
+
+/*#define SBR_PAYLOAD_MONITOR*/
+
+#endif