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Diffstat (limited to 'fdk-aac/libAACdec/src/usacdec_rom.h')
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diff --git a/fdk-aac/libAACdec/src/usacdec_rom.h b/fdk-aac/libAACdec/src/usacdec_rom.h new file mode 100644 index 0000000..f969e90 --- /dev/null +++ b/fdk-aac/libAACdec/src/usacdec_rom.h @@ -0,0 +1,154 @@ +/* ----------------------------------------------------------------------------- +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 +----------------------------------------------------------------------------- */ + +/**************************** AAC decoder library ****************************** + + Author(s): M. Jander + + Description: re8.h + +*******************************************************************************/ + +#ifndef USACDEC_ROM_H +#define USACDEC_ROM_H + +#include "common_fix.h" +#include "FDK_lpc.h" + +#include "usacdec_const.h" + +/* RE8 lattice quantiser constants */ +#define NB_SPHERE 32 +#define NB_LEADER 37 +#define NB_LDSIGN 226 +#define NB_LDQ3 9 +#define NB_LDQ4 28 + +#define LSF_SCALE 13 + +/* RE8 lattice quantiser tables */ +extern const UINT fdk_dec_tab_factorial[8]; +extern const UCHAR fdk_dec_Ia[NB_LEADER]; +extern const UCHAR fdk_dec_Ds[NB_LDSIGN]; +extern const USHORT fdk_dec_Is[NB_LDSIGN]; +extern const UCHAR fdk_dec_Ns[], fdk_dec_A3[], fdk_dec_A4[]; +extern const UCHAR fdk_dec_Da[][8]; +extern const USHORT fdk_dec_I3[], fdk_dec_I4[]; + +/* temp float tables for LPC decoding */ +extern const FIXP_LPC fdk_dec_lsf_init[16]; +extern const FIXP_LPC fdk_dec_dico_lsf_abs_8b[16 * 256]; + +/* ACELP tables */ +#define SF_QUA_GAIN7B 4 +extern const FIXP_SGL fdk_t_qua_gain7b[128 * 2]; +extern const FIXP_SGL lsp_interpol_factor[2][NB_SUBFR]; + +/* For bass post filter */ +#define L_FILT 12 /* Delay of up-sampling filter */ + +extern const FIXP_SGL fdk_dec_filt_lp[1 + L_FILT]; + +extern const FIXP_WTB FacWindowSynth128[128]; +extern const FIXP_WTB FacWindowZir128[128]; +extern const FIXP_WTB FacWindowSynth64[64]; +extern const FIXP_WTB FacWindowZir64[64]; +extern const FIXP_WTB FacWindowSynth32[32]; +extern const FIXP_WTB FacWindowZir32[32]; +extern const FIXP_WTB FacWindowSynth96[96]; +extern const FIXP_WTB FacWindowZir96[96]; +extern const FIXP_WTB FacWindowSynth48[48]; +extern const FIXP_WTB FacWindowZir48[48]; + +#endif /* USACDEC_ROM_H */ |