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Diffstat (limited to 'fdk-aac/libSACdec/src/sac_rom.h')
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diff --git a/fdk-aac/libSACdec/src/sac_rom.h b/fdk-aac/libSACdec/src/sac_rom.h new file mode 100644 index 0000000..d366fb6 --- /dev/null +++ b/fdk-aac/libSACdec/src/sac_rom.h @@ -0,0 +1,230 @@ +/* ----------------------------------------------------------------------------- +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 +----------------------------------------------------------------------------- */ + +/*********************** MPEG surround decoder library ************************* + + Author(s): + + Description: SAC Dec tables + +*******************************************************************************/ + +#ifndef SAC_ROM_H +#define SAC_ROM_H + +#include "FDK_archdef.h" +#include "sac_dec_interface.h" + +#include "huff_nodes.h" +#include "sac_bitdec.h" +#include "machine_type.h" + +/* Global ROM table data type: */ +#ifndef ARCH_PREFER_MULT_32x32 +#define FIXP_CFG FIXP_SGL +#define FX_CFG2FX_DBL FX_SGL2FX_DBL +#define FX_CFG2FX_SGL +#define CFG(a) (FX_DBL2FXCONST_SGL(a)) +#define FL2FXCONST_CFG FL2FXCONST_SGL +#define FX_DBL2FX_CFG(x) FX_DBL2FX_SGL((FIXP_DBL)(x)) +#else +#define FIXP_CFG FIXP_DBL +#define FX_CFG2FX_DBL +#define FX_CFG2FX_SGL FX_DBL2FX_SGL +#define CFG(a) FIXP_DBL(a) +#define FL2FXCONST_CFG FL2FXCONST_DBL +#define FX_DBL2FX_CFG(x) ((FIXP_DBL)(x)) +#endif + +/* others */ +#define SCALE_INV_ICC (2) +#define G_dd_SCALE (2) + +#define QCC_SCALE 1 +#define M1M2_DATA FIXP_DBL +#ifndef ARCH_PREFER_MULT_32x32 +#define M1M2_CDATA FIXP_SGL +#define M1M2_CDATA2FX_DBL(a) FX_SGL2FX_DBL(a) +#define FX_DBL2M1M2_CDATA(a) FX_DBL2FX_SGL(a) +#else +#define M1M2_CDATA FIXP_DBL +#define M1M2_CDATA2FX_DBL(a) (a) +#define FX_DBL2M1M2_CDATA(a) (a) +#endif + +#define CLIP_PROTECT_GAIN_0(x) FL2FXCONST_CFG(((x) / (float)(1 << 0))) +#define CLIP_PROTECT_GAIN_1(x) FL2FXCONST_CFG(((x) / (float)(1 << 1))) +#define CLIP_PROTECT_GAIN_2(x) FL2FXCONST_CFG(((x) / (float)(1 << 2))) + +#define SF_CLD_C1C2 (8) + +extern const FIXP_CFG dequantCPC__FDK[]; +extern const FIXP_CFG dequantICC__FDK[8]; +extern const FIXP_CFG dequantCLD__FDK[31]; + +#define IPD_SCALE (5) +#define PI__IPD (FL2FXCONST_DBL(3.1415926535897932f / (float)(1 << IPD_SCALE))) +/* Define for PI*2 for better precision in SpatialDecApplyPhase() */ +#define PIx2__IPD \ + (FL2FXCONST_DBL(3.1415926535897932f / (float)(1 << (IPD_SCALE - 1)))) + +extern const FIXP_CFG dequantIPD__FDK[16]; + +extern const FIXP_CFG H11_nc[31][8]; +extern const FIXP_CFG H12_nc[31][8]; + +extern const FIXP_DBL dequantCLD_c1[31]; + +extern const FIXP_CFG BP__FDK[]; +extern const FIXP_CFG BP_GF__FDK[]; +extern const SCHAR row2channelSTP[][MAX_M2_INPUT]; + +/* sac_bitdec */ +extern const INT samplingFreqTable[16]; +extern const UCHAR freqResTable[]; +extern const UCHAR freqResTable_LD[]; +extern const UCHAR tempShapeChanTable[2][8]; +extern const TREEPROPERTIES treePropertyTable[]; + +extern const SCHAR kernels_4_to_71[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_5_to_71[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_7_to_71[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_10_to_71[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_14_to_71[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_20_to_71[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_28_to_71[MAX_HYBRID_BANDS]; + +extern const UCHAR mapping_4_to_28[MAX_PARAMETER_BANDS]; +extern const UCHAR mapping_5_to_28[MAX_PARAMETER_BANDS]; +extern const UCHAR mapping_7_to_28[MAX_PARAMETER_BANDS]; +extern const UCHAR mapping_10_to_28[MAX_PARAMETER_BANDS]; +extern const UCHAR mapping_14_to_28[MAX_PARAMETER_BANDS]; +extern const UCHAR mapping_20_to_28[MAX_PARAMETER_BANDS]; +extern const SCHAR kernels_4_to_64[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_5_to_64[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_7_to_64[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_9_to_64[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_12_to_64[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_15_to_64[MAX_HYBRID_BANDS]; +extern const SCHAR kernels_23_to_64[MAX_HYBRID_BANDS]; + +extern const UCHAR mapping_15_to_23[MAX_PARAMETER_BANDS_LD]; +extern const UCHAR mapping_12_to_23[MAX_PARAMETER_BANDS_LD]; +extern const UCHAR mapping_9_to_23[MAX_PARAMETER_BANDS_LD]; +extern const UCHAR mapping_7_to_23[MAX_PARAMETER_BANDS_LD]; +extern const UCHAR mapping_5_to_23[MAX_PARAMETER_BANDS_LD]; +extern const UCHAR mapping_4_to_23[MAX_PARAMETER_BANDS_LD]; + +extern const FIXP_CFG clipGainTable__FDK[]; +extern const UCHAR clipGainSFTable__FDK[]; + +extern const UCHAR pbStrideTable[]; +extern const int smgTimeTable[]; + +extern const FIXP_CFG envShapeDataTable__FDK[5][2]; +extern const SCHAR row2channelGES[][MAX_M2_INPUT]; + +/* sac_calcM1andM2 */ +extern const SCHAR row2residual[][MAX_M2_INPUT]; + +void SpatialDequantGetCLDValues(int index, FIXP_DBL* cu, FIXP_DBL* cl); + +void SpatialDequantGetCLD2Values(int index, FIXP_DBL* x); + +/* External helper functions */ +static inline int SacGetHybridSubbands(int qmfSubbands) { + return qmfSubbands - MAX_QMF_BANDS_TO_HYBRID + 10; +} + +#endif /* SAC_ROM_H */ |