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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 bit writing
+*/
+#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 NrSendHeaderData; /**< input from commandline */
+ INT CountSendHeaderData; /**< modulo count. If < 0 then no counting is done (no SBR headers) */
+};
+
+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 sbrdata
+ */
+ SR_MODE sampleRateMode;
+
+ /*
+ 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;
+ INT freq_res_fixfix;
+
+
+ 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;
+
+ /* 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