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Diffstat (limited to 'fdk-aac/libSBRdec/src/sbr_rom.h')
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diff --git a/fdk-aac/libSBRdec/src/sbr_rom.h b/fdk-aac/libSBRdec/src/sbr_rom.h new file mode 100644 index 0000000..039743c --- /dev/null +++ b/fdk-aac/libSBRdec/src/sbr_rom.h @@ -0,0 +1,216 @@ +/* ----------------------------------------------------------------------------- +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 decoder library ****************************** + + Author(s): + + Description: + +*******************************************************************************/ + +/*! +\file +\brief Declaration of constant tables +*/ +#ifndef SBR_ROM_H +#define SBR_ROM_H + +#include "sbrdecoder.h" +#include "env_extr.h" +#include "qmf.h" + +#define INV_INT_TABLE_SIZE 49 +#define SBR_NF_NO_RANDOM_VAL \ + 512 /*!< Size of random number array for noise floor */ + +/* + Frequency scales +*/ + +/* if defined(SBRDEC_RATIO_16_64_ENABLE) ((4) = 4) else ((4) = 2) */ +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_16[(4) / 2][16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_22[(4) / 2][16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_24[(4) / 2][16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_32[(4) / 2][16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_40[(4) / 2][16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_44[(4) / 2][16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_48[(4) / 2][16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_64[(4) / 2][16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_88[(4) / 2][16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_192[16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_176[16]; +extern const UCHAR FDK_sbrDecoder_sbr_start_freq_128[16]; + +/* + Low-Power-Profile Transposer +*/ +#define NUM_WHFACTOR_TABLE_ENTRIES 9 +extern const USHORT + FDK_sbrDecoder_sbr_whFactorsIndex[NUM_WHFACTOR_TABLE_ENTRIES]; +extern const FIXP_DBL + FDK_sbrDecoder_sbr_whFactorsTable[NUM_WHFACTOR_TABLE_ENTRIES][6]; + +/* + Envelope Adjustor +*/ +extern const FIXP_SGL FDK_sbrDecoder_sbr_limGains_m[4]; +extern const UCHAR FDK_sbrDecoder_sbr_limGains_e[4]; +extern const FIXP_SGL FDK_sbrDecoder_sbr_limGainsPvc_m[4]; +extern const UCHAR FDK_sbrDecoder_sbr_limGainsPvc_e[4]; +extern const FIXP_SGL FDK_sbrDecoder_sbr_limiterBandsPerOctaveDiv4[4]; +extern const FIXP_DBL FDK_sbrDecoder_sbr_limiterBandsPerOctaveDiv4_DBL[4]; +extern const FIXP_SGL FDK_sbrDecoder_sbr_smoothFilter[4]; +extern const FIXP_SGL FDK_sbrDecoder_sbr_randomPhase[SBR_NF_NO_RANDOM_VAL][2]; + +/* + Envelope Extractor +*/ +extern const int FDK_sbrDecoder_envelopeTable_8[8][5]; +extern const int FDK_sbrDecoder_envelopeTable_15[15][6]; +extern const int FDK_sbrDecoder_envelopeTable_16[16][6]; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info1_15; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info2_15; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info4_15; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info8_15; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info1_16; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info2_16; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info4_16; +extern const FRAME_INFO FDK_sbrDecoder_sbr_frame_info8_16; + +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvLevel10T[120][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvLevel10F[120][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvBalance10T[48][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvBalance10F[48][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvLevel11T[62][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvLevel11F[62][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvBalance11T[24][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_EnvBalance11F[24][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_NoiseLevel11T[62][2]; +extern const SCHAR FDK_sbrDecoder_sbr_huffBook_NoiseBalance11T[24][2]; + +/* + Parametric stereo +*/ + +/* FIX_BORDER can have 0, 1, 2, 4 envelops */ +extern const UCHAR FDK_sbrDecoder_aFixNoEnvDecode[4]; + +/* IID & ICC Huffman codebooks */ +extern const SCHAR aBookPsIidTimeDecode[28][2]; +extern const SCHAR aBookPsIidFreqDecode[28][2]; +extern const SCHAR aBookPsIccTimeDecode[14][2]; +extern const SCHAR aBookPsIccFreqDecode[14][2]; + +/* IID-fine Huffman codebooks */ + +extern const SCHAR aBookPsIidFineTimeDecode[60][2]; +extern const SCHAR aBookPsIidFineFreqDecode[60][2]; + +/* the values of the following 3 tables are shiftet right by 1 ! */ +extern const FIXP_DBL ScaleFactors[NO_IID_LEVELS]; +extern const FIXP_DBL ScaleFactorsFine[NO_IID_LEVELS_FINE]; +extern const FIXP_DBL Alphas[NO_ICC_LEVELS]; + +extern const UCHAR bins2groupMap20[NO_IID_GROUPS]; +extern const UCHAR FDK_sbrDecoder_aNoIidBins[3]; +extern const UCHAR FDK_sbrDecoder_aNoIccBins[3]; + +/* Lookup tables for some arithmetic functions */ + +#define INV_TABLE_BITS 8 +#define INV_TABLE_SIZE (1 << INV_TABLE_BITS) +extern const FIXP_SGL FDK_sbrDecoder_invTable[INV_TABLE_SIZE]; + +#endif // SBR_ROM_H |