| |
| /* ----------------------------------------------------------------------------------------------------------- |
| Software License for The Fraunhofer FDK AAC Codec Library for Android |
| |
| © Copyright 1995 - 2013 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-4 AAC Decoder ************************** |
| |
| Author(s): Manuel Jander |
| Description: MPEG Transport data tables |
| |
| ******************************************************************************/ |
| |
| #ifndef __TP_DATA_H__ |
| #define __TP_DATA_H__ |
| |
| #include "machine_type.h" |
| #include "FDK_audio.h" |
| #include "FDK_bitstream.h" |
| |
| /* |
| * Configuration |
| */ |
| #define TP_GA_ENABLE |
| /* #define TP_CELP_ENABLE */ |
| /* #define TP_HVXC_ENABLE */ |
| /* #define TP_SLS_ENABLE */ |
| #define TP_ELD_ENABLE |
| /* #define TP_USAC_ENABLE */ |
| /* #define TP_RSVD50_ENABLE */ |
| |
| #if defined(TP_GA_ENABLE) || defined(TP_SLS_ENABLE) |
| #define TP_PCE_ENABLE /**< Enable full PCE support */ |
| #endif |
| |
| /** |
| * ProgramConfig struct. |
| */ |
| /* ISO/IEC 14496-3 4.4.1.1 Table 4.2 Program config element */ |
| #define PC_FSB_CHANNELS_MAX 16 /* Front/Side/Back channels */ |
| #define PC_LFE_CHANNELS_MAX 4 |
| #define PC_ASSOCDATA_MAX 8 |
| #define PC_CCEL_MAX 16 /* CC elements */ |
| #define PC_COMMENTLENGTH 256 |
| |
| typedef struct |
| { |
| #ifdef TP_PCE_ENABLE |
| /* PCE bitstream elements: */ |
| UCHAR ElementInstanceTag; |
| UCHAR Profile; |
| UCHAR SamplingFrequencyIndex; |
| UCHAR NumFrontChannelElements; |
| UCHAR NumSideChannelElements; |
| UCHAR NumBackChannelElements; |
| UCHAR NumLfeChannelElements; |
| UCHAR NumAssocDataElements; |
| UCHAR NumValidCcElements; |
| |
| UCHAR MonoMixdownPresent; |
| UCHAR MonoMixdownElementNumber; |
| |
| UCHAR StereoMixdownPresent; |
| UCHAR StereoMixdownElementNumber; |
| |
| UCHAR MatrixMixdownIndexPresent; |
| UCHAR MatrixMixdownIndex; |
| UCHAR PseudoSurroundEnable; |
| |
| UCHAR FrontElementIsCpe[PC_FSB_CHANNELS_MAX]; |
| UCHAR FrontElementTagSelect[PC_FSB_CHANNELS_MAX]; |
| UCHAR FrontElementHeightInfo[PC_FSB_CHANNELS_MAX]; |
| |
| UCHAR SideElementIsCpe[PC_FSB_CHANNELS_MAX]; |
| UCHAR SideElementTagSelect[PC_FSB_CHANNELS_MAX]; |
| UCHAR SideElementHeightInfo[PC_FSB_CHANNELS_MAX]; |
| |
| UCHAR BackElementIsCpe[PC_FSB_CHANNELS_MAX]; |
| UCHAR BackElementTagSelect[PC_FSB_CHANNELS_MAX]; |
| UCHAR BackElementHeightInfo[PC_FSB_CHANNELS_MAX]; |
| |
| UCHAR LfeElementTagSelect[PC_LFE_CHANNELS_MAX]; |
| |
| UCHAR AssocDataElementTagSelect[PC_ASSOCDATA_MAX]; |
| |
| UCHAR CcElementIsIndSw[PC_CCEL_MAX]; |
| UCHAR ValidCcElementTagSelect[PC_CCEL_MAX]; |
| |
| UCHAR CommentFieldBytes; |
| UCHAR Comment[PC_COMMENTLENGTH]; |
| #endif /* TP_PCE_ENABLE */ |
| |
| /* Helper variables for administration: */ |
| UCHAR isValid; /*!< Flag showing if PCE has been read successfully. */ |
| UCHAR NumChannels; /*!< Amount of audio channels summing all channel elements including LFEs */ |
| UCHAR NumEffectiveChannels; /*!< Amount of audio channels summing only SCEs and CPEs */ |
| UCHAR elCounter; |
| |
| } CProgramConfig; |
| |
| typedef enum { |
| ASCEXT_UNKOWN = -1, |
| ASCEXT_SBR = 0x2b7, |
| ASCEXT_PS = 0x548, |
| ASCEXT_MPS = 0x76a, |
| ASCEXT_SAOC = 0x7cb, |
| ASCEXT_LDMPS = 0x7cc |
| |
| } TP_ASC_EXTENSION_ID; |
| |
| #ifdef TP_GA_ENABLE |
| /** |
| * GaSpecificConfig struct |
| */ |
| typedef struct { |
| UINT m_frameLengthFlag ; |
| UINT m_dependsOnCoreCoder ; |
| UINT m_coreCoderDelay ; |
| |
| UINT m_extensionFlag ; |
| UINT m_extensionFlag3 ; |
| |
| UINT m_layer; |
| UINT m_numOfSubFrame; |
| UINT m_layerLength; |
| |
| } CSGaSpecificConfig; |
| #endif /* TP_GA_ENABLE */ |
| |
| |
| |
| |
| #ifdef TP_ELD_ENABLE |
| |
| typedef enum { |
| ELDEXT_TERM = 0x0, /* Termination tag */ |
| ELDEXT_SAOC = 0x1, /* SAOC config */ |
| ELDEXT_LDSAC = 0x2 /* LD MPEG Surround config */ |
| /* reserved */ |
| } ASC_ELD_EXT_TYPE; |
| |
| typedef struct { |
| UCHAR m_frameLengthFlag; |
| |
| UCHAR m_sbrPresentFlag; |
| UCHAR m_useLdQmfTimeAlign; /* Use LD-MPS QMF in SBR to achive time alignment */ |
| UCHAR m_sbrSamplingRate; |
| UCHAR m_sbrCrcFlag; |
| |
| } CSEldSpecificConfig; |
| #endif /* TP_ELD_ENABLE */ |
| |
| |
| |
| |
| /** |
| * Audio configuration struct, suitable for encoder and decoder configuration. |
| */ |
| typedef struct { |
| |
| /* XYZ Specific Data */ |
| union { |
| #ifdef TP_GA_ENABLE |
| CSGaSpecificConfig m_gaSpecificConfig; /**< General audio specific configuration. */ |
| #endif /* TP_GA_ENABLE */ |
| #ifdef TP_ELD_ENABLE |
| CSEldSpecificConfig m_eldSpecificConfig; /**< ELD specific configuration. */ |
| #endif /* TP_ELD_ENABLE */ |
| } m_sc; |
| |
| /* Common ASC parameters */ |
| #ifdef TP_PCE_ENABLE |
| CProgramConfig m_progrConfigElement; /**< Program configuration. */ |
| #endif /* TP_PCE_ENABLE */ |
| |
| AUDIO_OBJECT_TYPE m_aot; /**< Audio Object Type. */ |
| UINT m_samplingFrequency; /**< Samplerate. */ |
| UINT m_samplesPerFrame; /**< Amount of samples per frame. */ |
| UINT m_directMapping; /**< Document this please !! */ |
| |
| AUDIO_OBJECT_TYPE m_extensionAudioObjectType; /**< Audio object type */ |
| UINT m_extensionSamplingFrequency; /**< Samplerate */ |
| |
| SCHAR m_channelConfiguration; /**< Channel configuration index */ |
| |
| SCHAR m_epConfig; /**< Error protection index */ |
| SCHAR m_vcb11Flag; /**< aacSectionDataResilienceFlag */ |
| SCHAR m_rvlcFlag; /**< aacScalefactorDataResilienceFlag */ |
| SCHAR m_hcrFlag; /**< aacSpectralDataResilienceFlag */ |
| |
| SCHAR m_sbrPresentFlag; /**< Flag indicating the presence of SBR data in the bitstream */ |
| SCHAR m_psPresentFlag; /**< Flag indicating the presence of parametric stereo data in the bitstream */ |
| UCHAR m_samplingFrequencyIndex; /**< Samplerate index */ |
| UCHAR m_extensionSamplingFrequencyIndex; /**< Samplerate index */ |
| SCHAR m_extensionChannelConfiguration; /**< Channel configuration index */ |
| |
| } CSAudioSpecificConfig; |
| |
| typedef INT (*cbUpdateConfig_t)(void*, const CSAudioSpecificConfig*); |
| typedef INT (*cbSsc_t)( |
| void*, HANDLE_FDK_BITSTREAM, |
| const AUDIO_OBJECT_TYPE coreCodec, |
| const INT samplingFrequency, |
| const INT muxMode, |
| const INT configBytes |
| ); |
| typedef INT (*cbSbr_t)( |
| void * self, |
| HANDLE_FDK_BITSTREAM hBs, |
| const INT sampleRateIn, |
| const INT sampleRateOut, |
| const INT samplesPerFrame, |
| const AUDIO_OBJECT_TYPE coreCodec, |
| const MP4_ELEMENT_ID elementID, |
| const INT elementIndex |
| ); |
| |
| typedef struct { |
| cbUpdateConfig_t cbUpdateConfig; /*!< Function pointer for Config change notify callback. */ |
| void *cbUpdateConfigData; /*!< User data pointer for Config change notify callback. */ |
| cbSsc_t cbSsc; /*!< Function pointer for SSC parser callback. */ |
| void *cbSscData; /*!< User data pointer for SSC parser callback. */ |
| cbSbr_t cbSbr; /*!< Function pointer for SBR header parser callback. */ |
| void *cbSbrData; /*!< User data pointer for SBR header parser callback. */ |
| } CSTpCallBacks; |
| |
| static const UINT SamplingRateTable[] = |
| { 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350, 0, 0, |
| 0 |
| }; |
| |
| static inline |
| int getSamplingRateIndex( UINT samplingRate ) |
| { |
| UINT sf_index, tableSize=sizeof(SamplingRateTable)/sizeof(UINT); |
| |
| for (sf_index=0; sf_index<tableSize; sf_index++) { |
| if( SamplingRateTable[sf_index] == samplingRate ) break; |
| } |
| |
| if (sf_index>tableSize-1) { |
| return tableSize-1; |
| } |
| |
| return sf_index; |
| } |
| |
| /* |
| * Get Channel count from channel configuration |
| */ |
| static inline int getNumberOfTotalChannels(int channelConfig) |
| { |
| switch (channelConfig) { |
| case 1: case 2: case 3: |
| case 4: case 5: case 6: |
| return channelConfig; |
| case 7: case 12: case 14: |
| return 8; |
| case 11: |
| return 7; |
| default: |
| return 0; |
| } |
| } |
| |
| static inline |
| int getNumberOfEffectiveChannels(const int channelConfig) |
| { /* index: 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 */ |
| const int n[] = {0,1,2,3,4,5,5,7,0,0, 0, 6, 7, 0, 7, 0}; |
| return n[channelConfig]; |
| } |
| |
| #endif /* __TP_DATA_H__ */ |
