diff options
Diffstat (limited to 'fdk-aac/libFDK/include/FDK_tools_rom.h')
| -rw-r--r-- | fdk-aac/libFDK/include/FDK_tools_rom.h | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/fdk-aac/libFDK/include/FDK_tools_rom.h b/fdk-aac/libFDK/include/FDK_tools_rom.h new file mode 100644 index 0000000..d1cb980 --- /dev/null +++ b/fdk-aac/libFDK/include/FDK_tools_rom.h @@ -0,0 +1,398 @@ +/* ----------------------------------------------------------------------------- +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 +----------------------------------------------------------------------------- */ + +/******************* Library for basic calculation routines ******************** + + Author(s): Oliver Moser + + Description: ROM tables used by FDK tools + +*******************************************************************************/ + +#ifndef FDK_TOOLS_ROM_H +#define FDK_TOOLS_ROM_H + +#include "common_fix.h" +#include "FDK_audio.h" + +/* sinetables */ + +/* None radix2 rotation vectors */ +extern RAM_ALIGN const FIXP_STB RotVectorReal60[60]; +extern RAM_ALIGN const FIXP_STB RotVectorImag60[60]; +extern RAM_ALIGN const FIXP_STB RotVectorReal192[192]; +extern RAM_ALIGN const FIXP_STB RotVectorImag192[192]; +extern RAM_ALIGN const FIXP_STB RotVectorReal240[210]; +extern RAM_ALIGN const FIXP_STB RotVectorImag240[210]; +extern RAM_ALIGN const FIXP_STB RotVectorReal480[480]; +extern RAM_ALIGN const FIXP_STB RotVectorImag480[480]; +extern RAM_ALIGN const FIXP_STB RotVectorReal6[6]; +extern RAM_ALIGN const FIXP_STB RotVectorImag6[6]; +extern RAM_ALIGN const FIXP_STB RotVectorReal12[12]; +extern RAM_ALIGN const FIXP_STB RotVectorImag12[12]; +extern RAM_ALIGN const FIXP_STB RotVectorReal24[24]; +extern RAM_ALIGN const FIXP_STB RotVectorImag24[24]; +extern RAM_ALIGN const FIXP_STB RotVectorReal48[48]; +extern RAM_ALIGN const FIXP_STB RotVectorImag48[48]; +extern RAM_ALIGN const FIXP_STB RotVectorReal80[80]; +extern RAM_ALIGN const FIXP_STB RotVectorImag80[80]; +extern RAM_ALIGN const FIXP_STB RotVectorReal96[96]; +extern RAM_ALIGN const FIXP_STB RotVectorImag96[96]; +extern RAM_ALIGN const FIXP_STB RotVectorReal384[384]; +extern RAM_ALIGN const FIXP_STB RotVectorImag384[384]; +extern RAM_ALIGN const FIXP_STB RotVectorReal20[20]; +extern RAM_ALIGN const FIXP_STB RotVectorImag20[20]; +extern RAM_ALIGN const FIXP_STB RotVectorReal120[120]; +extern RAM_ALIGN const FIXP_STB RotVectorImag120[120]; + +/* Regular sine tables */ +extern RAM_ALIGN const FIXP_STP SineTable1024[]; +extern RAM_ALIGN const FIXP_STP SineTable512[]; +extern RAM_ALIGN const FIXP_STP SineTable480[]; +extern RAM_ALIGN const FIXP_STP SineTable384[]; +extern RAM_ALIGN const FIXP_STP SineTable80[]; +#ifdef INCLUDE_SineTable10 +extern RAM_ALIGN const FIXP_STP SineTable10[]; +#endif + +/* AAC-LC windows */ +extern RAM_ALIGN const FIXP_WTP SineWindow1024[]; +extern RAM_ALIGN const FIXP_WTP KBDWindow1024[]; +extern RAM_ALIGN const FIXP_WTP SineWindow128[]; +extern RAM_ALIGN const FIXP_WTP KBDWindow128[]; + +extern RAM_ALIGN const FIXP_WTP SineWindow960[]; +extern RAM_ALIGN const FIXP_WTP KBDWindow960[]; +extern RAM_ALIGN const FIXP_WTP SineWindow120[]; +extern RAM_ALIGN const FIXP_WTP KBDWindow120[]; + +/* AAC-LD windows */ +extern RAM_ALIGN const FIXP_WTP SineWindow512[]; +#define LowOverlapWindow512 SineWindow128 +extern RAM_ALIGN const FIXP_WTP SineWindow480[]; +#define LowOverlapWindow480 SineWindow120 + +/* USAC TCX Window */ +extern RAM_ALIGN const FIXP_WTP SineWindow256[256]; +extern RAM_ALIGN const FIXP_WTP SineWindow192[]; + +/* USAC 8/3 windows */ +extern RAM_ALIGN const FIXP_WTP SineWindow768[]; +extern RAM_ALIGN const FIXP_WTP KBDWindow768[]; +extern RAM_ALIGN const FIXP_WTP SineWindow96[]; +extern RAM_ALIGN const FIXP_WTP KBDWindow96[]; + +/* DCT and others */ +extern RAM_ALIGN const FIXP_WTP SineWindow64[]; +extern RAM_ALIGN const FIXP_WTP SineWindow48[]; +extern RAM_ALIGN const FIXP_WTP SineWindow32[]; +extern RAM_ALIGN const FIXP_WTP SineWindow24[]; +extern RAM_ALIGN const FIXP_WTP SineWindow16[]; +extern RAM_ALIGN const FIXP_WTP SineWindow8[]; + +/** + * \brief Helper table for window slope mapping. You should prefer the usage of + * the function FDKgetWindowSlope(), this table is only made public for some + * optimized access inside dct.cpp. + */ +extern const FIXP_WTP *const windowSlopes[2][4][9]; + +/** + * \brief Window slope access helper. Obtain a window of given length and shape. + * \param length Length of the window slope. + * \param shape Shape index of the window slope. 0: sine window, 1: + * Kaiser-Bessel. Any other value is applied a mask of 1 to, mapping it to + * either 0 or 1. + * \param Pointer to window slope or NULL if the requested window slope is not + * available. + */ +const FIXP_WTP *FDKgetWindowSlope(int length, int shape); + +extern const FIXP_WTP sin_twiddle_L64[]; + +/* + * Filter coefficient type definition + */ + +#if defined(ARCH_PREFER_MULT_16x16) || defined(ARCH_PREFER_MULT_32x16) +#define QMF_COEFF_16BIT +#endif + +#define QMF_FILTER_PROTOTYPE_SIZE 640 +#define QMF_NO_POLY 5 + +#ifdef QMF_COEFF_16BIT +#define FIXP_PFT FIXP_SGL +#define FIXP_QTW FIXP_SGL +#define FX_DBL2FX_QTW(x) FX_DBL2FX_SGL(x) +#else +#define FIXP_PFT FIXP_DBL +#define FIXP_QTW FIXP_DBL + +#define FX_DBL2FX_QTW(x) (x) + +#endif + +#define QMF640_PFT_TABLE_SIZE (640 / 2 + QMF_NO_POLY) + +/* Resampling twiddles for QMF */ + +/* Not resampling twiddles */ +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_cos32[32]; +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_sin32[32]; +/* Adapted analysis post-twiddles for down-sampled HQ SBR */ +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_cos_downsamp32[32]; +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_sin_downsamp32[32]; +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_cos64[64]; +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_sin64[64]; +extern RAM_ALIGN const FIXP_PFT + qmf_pfilt640[QMF640_PFT_TABLE_SIZE + QMF_NO_POLY]; +extern RAM_ALIGN const FIXP_PFT qmf_pfilt640_vector[640]; + +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_cos40[40]; +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_sin40[40]; +extern RAM_ALIGN const FIXP_PFT qmf_pfilt400[]; +extern RAM_ALIGN const FIXP_PFT qmf_pfilt200[]; +extern RAM_ALIGN const FIXP_PFT qmf_pfilt120[]; + +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_cos24[24]; +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_sin24[24]; +extern RAM_ALIGN const FIXP_PFT qmf_pfilt240[]; + +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_cos16[16]; +extern RAM_ALIGN const FIXP_QTW qmf_phaseshift_sin16[16]; + +#define QMF640_CLDFB_PFT_TABLE_SIZE (640) +#define QMF320_CLDFB_PFT_TABLE_SIZE (320) +#define QMF_CLDFB_PFT_SCALE 1 + +extern const FIXP_QTW qmf_phaseshift_cos32_cldfb_ana[32]; +extern const FIXP_QTW qmf_phaseshift_cos32_cldfb_syn[32]; +extern const FIXP_QTW qmf_phaseshift_sin32_cldfb[32]; + +extern const FIXP_QTW qmf_phaseshift_cos16_cldfb_ana[16]; +extern const FIXP_QTW qmf_phaseshift_cos16_cldfb_syn[16]; +extern const FIXP_QTW qmf_phaseshift_sin16_cldfb[16]; + +extern const FIXP_QTW qmf_phaseshift_cos8_cldfb_ana[8]; +extern const FIXP_QTW qmf_phaseshift_cos8_cldfb_syn[8]; +extern const FIXP_QTW qmf_phaseshift_sin8_cldfb[8]; + +extern const FIXP_QTW qmf_phaseshift_cos64_cldfb[64]; +extern const FIXP_QTW qmf_phaseshift_sin64_cldfb[64]; + +extern RAM_ALIGN const FIXP_PFT qmf_cldfb_640[QMF640_CLDFB_PFT_TABLE_SIZE]; +extern RAM_ALIGN const FIXP_PFT qmf_cldfb_320[QMF320_CLDFB_PFT_TABLE_SIZE]; +#define QMF160_CLDFB_PFT_TABLE_SIZE (160) +extern RAM_ALIGN const FIXP_PFT qmf_cldfb_160[QMF160_CLDFB_PFT_TABLE_SIZE]; +#define QMF80_CLDFB_PFT_TABLE_SIZE (80) +extern RAM_ALIGN const FIXP_PFT qmf_cldfb_80[QMF80_CLDFB_PFT_TABLE_SIZE]; + +#define QMF320_MPSLDFB_PFT_TABLE_SIZE (320) +#define QMF640_MPSLDFB_PFT_TABLE_SIZE (640) +#define QMF_MPSLDFB_PFT_SCALE 1 + +extern const FIXP_PFT qmf_mpsldfb_320[QMF320_MPSLDFB_PFT_TABLE_SIZE]; +extern RAM_ALIGN const FIXP_PFT qmf_mpsldfb_640[QMF640_MPSLDFB_PFT_TABLE_SIZE]; + +/** + * Audio bitstream element specific syntax flags: + */ +#define AC_EL_GA_CCE 0x00000001 /*!< GA AAC coupling channel element (CCE) */ + +/* + * Raw Data Block list items. + */ +typedef enum { + element_instance_tag, + common_window, /* -> decision for link_sequence */ + global_gain, + ics_info, /* ics_reserved_bit, window_sequence, window_shape, max_sfb, + scale_factor_grouping, predictor_data_present, ltp_data_present, + ltp_data */ + max_sfb, + ms, /* ms_mask_present, ms_used */ + /*predictor_data_present,*/ /* part of ics_info */ + ltp_data_present, + ltp_data, + section_data, + scale_factor_data, + pulse, /* pulse_data_present, pulse_data */ + tns_data_present, + tns_data, + gain_control_data_present, + gain_control_data, + esc1_hcr, + esc2_rvlc, + spectral_data, + + scale_factor_data_usac, + core_mode, /* -> decision for link_sequence */ + common_tw, + lpd_channel_stream, + tw_data, + noise, + ac_spectral_data, + fac_data, + tns_active, /* introduced in MPEG-D usac CD */ + tns_data_present_usac, + common_max_sfb, + + coupled_elements, /* only for CCE parsing */ + gain_element_lists, /* only for CCE parsing */ + + /* Non data list items */ + adtscrc_start_reg1, + adtscrc_start_reg2, + adtscrc_end_reg1, + adtscrc_end_reg2, + drmcrc_start_reg, + drmcrc_end_reg, + next_channel, + next_channel_loop, + link_sequence, + end_of_sequence +} rbd_id_t; + +struct element_list { + const rbd_id_t *id; + const struct element_list *next[2]; +}; + +typedef struct element_list element_list_t; +/** + * \brief get elementary stream pieces list for given parameters. + * \param aot audio object type + * \param epConfig the epConfig value from the current Audio Specific Config + * \param nChannels amount of channels contained in the current element. + * \param layer the layer of the current element. + * \param elFlags element specific flags. + * \return element_list_t parser guidance structure. + */ +const element_list_t *getBitstreamElementList(AUDIO_OBJECT_TYPE aot, + SCHAR epConfig, UCHAR nChannels, + UCHAR layer, UINT elFlags); + +typedef enum { + /* n.a. */ + FDK_FORMAT_1_0 = 1, /* mono */ + FDK_FORMAT_2_0 = 2, /* stereo */ + FDK_FORMAT_3_0_FC = 3, /* 3/0.0 */ + FDK_FORMAT_3_1_0 = 4, /* 3/1.0 */ + FDK_FORMAT_5_0 = 5, /* 3/2.0 */ + FDK_FORMAT_5_1 = 6, /* 5.1 */ + FDK_FORMAT_7_1_ALT = 7, /* 5/2.1 ALT */ + /* 8 n.a.*/ + FDK_FORMAT_3_0_RC = 9, /* 2/1.0 */ + FDK_FORMAT_2_2_0 = 10, /* 2/2.0 */ + FDK_FORMAT_6_1 = 11, /* 3/3.1 */ + FDK_FORMAT_7_1 = 12, /* 3/4.1 */ + FDK_FORMAT_22_2 = 13, /* 22.2 */ + FDK_FORMAT_5_2_1 = 14, /* 5/2.1*/ + FDK_FORMAT_5_5_2 = 15, /* 5/5.2 */ + FDK_FORMAT_9_1 = 16, /* 5/4.1 */ + FDK_FORMAT_6_5_1 = 17, /* 6/5.1 */ + FDK_FORMAT_6_7_1 = 18, /* 6/7.1 */ + FDK_FORMAT_5_6_1 = 19, /* 5/6.1 */ + FDK_FORMAT_7_6_1 = 20, /* 7/6.1 */ + FDK_FORMAT_IN_LISTOFCHANNELS = 21, + FDK_FORMAT_OUT_LISTOFCHANNELS = 22, + /* 20 formats + In & Out list of channels */ + FDK_NFORMATS = 23, + FDK_FORMAT_FAIL = -1 +} FDK_converter_formatid_t; + +extern const INT format_nchan[FDK_NFORMATS + 9 - 2]; + +#endif |