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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 main definitions  
+*/
+#ifndef __SBR_DEF_H
+#define __SBR_DEF_H
+
+#include "common_fix.h"
+
+#define noError 0
+#define HANDLE_ERROR_INFO INT
+#define ERROR(a,b) 1
+#define handBack
+
+/* #define SBR_ENV_STATISTICS_BITRATE */
+#undef SBR_ENV_STATISTICS_BITRATE
+
+/* #define SBR_ENV_STATISTICS */
+#undef SBR_ENV_STATISTICS
+
+/* #define SBR_PAYLOAD_MONITOR */
+#undef SBR_PAYLOAD_MONITOR
+
+#define SWAP(a,b)                               tempr=a, a=b, b=tempr
+#define TRUE  1
+#define FALSE 0
+
+
+/* Constants */
+#define EPS                                     1e-12
+#define LOG2                                    0.69314718056f  /* natural logarithm of 2 */
+#define ILOG2                                   1.442695041f    /* 1/LOG2 */
+#define RELAXATION_FLOAT                        (1e-6f)
+#define RELAXATION                              (FL2FXCONST_DBL(RELAXATION_FLOAT))
+#define RELAXATION_FRACT                        (FL2FXCONST_DBL(0.524288f))     /* 0.524288f is fractional part of RELAXATION */
+#define RELAXATION_SHIFT                        (19)
+#define RELAXATION_LD64                         (FL2FXCONST_DBL(0.31143075889f))/* (ld64(RELAXATION) */
+
+/************  Definitions ***************/
+#define SBR_COMP_MODE_DELTA                     0
+#define SBR_COMP_MODE_CTS                       1
+
+#define MAX_NUM_CHANNELS                        2
+
+#define MAX_NOISE_ENVELOPES                     2
+#define MAX_NUM_NOISE_COEFFS                    5
+#define MAX_NUM_NOISE_VALUES                    (MAX_NUM_NOISE_COEFFS*MAX_NOISE_ENVELOPES)
+
+#define MAX_NUM_ENVELOPE_VALUES                 (MAX_ENVELOPES * MAX_FREQ_COEFFS)
+#define MAX_ENVELOPES                           5
+#define MAX_FREQ_COEFFS                         48
+
+#define MAX_FREQ_COEFFS_FS44100                 35
+#define MAX_FREQ_COEFFS_FS48000                 32
+
+
+#define QMF_CHANNELS                            64
+#define QMF_FILTER_LENGTH                      640
+#define QMF_MAX_TIME_SLOTS                      32
+#define NO_OF_ESTIMATES_LC                      4
+#define NO_OF_ESTIMATES_LD                      3
+#define MAX_NO_OF_ESTIMATES                     4
+
+
+#define NOISE_FLOOR_OFFSET                      6
+#define NOISE_FLOOR_OFFSET_64                   (FL2FXCONST_DBL(0.09375f))
+
+#define LOW_RES                                 0
+#define HIGH_RES                                1
+
+#define LO                                      0
+#define HI                                      1
+
+#define LENGTH_SBR_FRAME_INFO                   35      /* 19 */
+
+#define SBR_NSFB_LOW_RES                        9       /*  8 */
+#define SBR_NSFB_HIGH_RES                       18      /* 16 */
+
+
+#define SBR_XPOS_CTRL_DEFAULT                   2
+
+#define SBR_FREQ_SCALE_DEFAULT                  2
+#define SBR_ALTER_SCALE_DEFAULT                 1
+#define SBR_NOISE_BANDS_DEFAULT                 2
+
+#define SBR_LIMITER_BANDS_DEFAULT               2
+#define SBR_LIMITER_GAINS_DEFAULT               2
+#define SBR_LIMITER_GAINS_INFINITE              3
+#define SBR_INTERPOL_FREQ_DEFAULT               1
+#define SBR_SMOOTHING_LENGTH_DEFAULT            0
+
+
+/* sbr_header */
+#define SI_SBR_AMP_RES_BITS                     1
+#define SI_SBR_COUPLING_BITS                    1
+#define SI_SBR_START_FREQ_BITS                  4
+#define SI_SBR_STOP_FREQ_BITS                   4
+#define SI_SBR_XOVER_BAND_BITS                  3
+#define SI_SBR_RESERVED_BITS                    2
+#define SI_SBR_DATA_EXTRA_BITS                  1
+#define SI_SBR_HEADER_EXTRA_1_BITS              1
+#define SI_SBR_HEADER_EXTRA_2_BITS              1
+
+/* sbr_header extra 1 */
+#define SI_SBR_FREQ_SCALE_BITS                  2
+#define SI_SBR_ALTER_SCALE_BITS                 1
+#define SI_SBR_NOISE_BANDS_BITS                 2
+
+/* sbr_header extra 2 */
+#define SI_SBR_LIMITER_BANDS_BITS               2
+#define SI_SBR_LIMITER_GAINS_BITS               2
+#define SI_SBR_INTERPOL_FREQ_BITS               1
+#define SI_SBR_SMOOTHING_LENGTH_BITS            1
+
+/* sbr_grid */
+#define SBR_CLA_BITS                            2   /*!< size of bs_frame_class */
+#define SBR_CLA_BITS_LD                         1   /*!< size of bs_frame_class */
+#define SBR_ENV_BITS                            2   /*!< size of bs_num_env_raw */
+#define SBR_ABS_BITS                            2   /*!< size of bs_abs_bord_raw for HE-AAC */
+#define SBR_NUM_BITS                            2   /*!< size of bs_num_rel */
+#define SBR_REL_BITS                            2   /*!< size of bs_rel_bord_raw */
+#define SBR_RES_BITS                            1   /*!< size of bs_freq_res_flag */
+#define SBR_DIR_BITS                            1   /*!< size of bs_df_flag */
+
+
+/* sbr_data */
+#define SI_SBR_INVF_MODE_BITS                   2
+
+
+#define SI_SBR_START_ENV_BITS_AMP_RES_3_0           6
+#define SI_SBR_START_ENV_BITS_BALANCE_AMP_RES_3_0   5
+#define SI_SBR_START_NOISE_BITS_AMP_RES_3_0         5
+#define SI_SBR_START_NOISE_BITS_BALANCE_AMP_RES_3_0 5
+
+#define SI_SBR_START_ENV_BITS_AMP_RES_1_5           7
+#define SI_SBR_START_ENV_BITS_BALANCE_AMP_RES_1_5   6
+
+
+#define SI_SBR_EXTENDED_DATA_BITS               1
+#define SI_SBR_EXTENSION_SIZE_BITS              4
+#define SI_SBR_EXTENSION_ESC_COUNT_BITS         8
+#define SI_SBR_EXTENSION_ID_BITS                2
+
+#define SBR_EXTENDED_DATA_MAX_CNT               (15+255)
+
+#define EXTENSION_ID_PS_CODING                  2
+
+/* Envelope coding constants */
+#define FREQ                      0
+#define TIME                      1
+
+
+/* huffman tables */
+#define CODE_BOOK_SCF_LAV00         60
+#define CODE_BOOK_SCF_LAV01         31
+#define CODE_BOOK_SCF_LAV10         60
+#define CODE_BOOK_SCF_LAV11         31
+#define CODE_BOOK_SCF_LAV_BALANCE11 12
+#define CODE_BOOK_SCF_LAV_BALANCE10 24
+
+typedef enum
+{
+  SBR_AMP_RES_1_5=0,
+  SBR_AMP_RES_3_0
+}
+AMP_RES;
+
+typedef enum
+{
+  XPOS_MDCT,
+  XPOS_MDCT_CROSS,
+  XPOS_LC,
+  XPOS_RESERVED,
+  XPOS_SWITCHED /* not a real choice but used here to control behaviour */
+}
+XPOS_MODE;
+
+typedef enum
+{
+  INVF_OFF = 0,
+  INVF_LOW_LEVEL,
+  INVF_MID_LEVEL,
+  INVF_HIGH_LEVEL,
+  INVF_SWITCHED /* not a real choice but used here to control behaviour */
+}
+INVF_MODE;
+
+typedef enum
+{
+  SINGLE_RATE,
+  DUAL_RATE
+}
+SR_MODE;
+
+typedef enum
+{
+  FREQ_RES_LOW = 0,
+  FREQ_RES_HIGH
+}
+FREQ_RES;
+
+
+#endif