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diff --git a/fdk-aac/libMpegTPDec/include/tpdec_lib.h b/fdk-aac/libMpegTPDec/include/tpdec_lib.h new file mode 100644 index 0000000..30e53c1 --- /dev/null +++ b/fdk-aac/libMpegTPDec/include/tpdec_lib.h @@ -0,0 +1,664 @@ +/* ----------------------------------------------------------------------------- +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 transport format decoder library ********************* + + Author(s): Manuel Jander + + Description: MPEG Transport decoder + +*******************************************************************************/ + +#ifndef TPDEC_LIB_H +#define TPDEC_LIB_H + +#include "tp_data.h" + +#include "FDK_bitstream.h" + +typedef enum { + TRANSPORTDEC_OK = 0, /*!< All fine. */ + + /* Synchronization errors. Wait for new input data and try again. */ + tpdec_sync_error_start = 0x100, + TRANSPORTDEC_NOT_ENOUGH_BITS, /*!< Out of bits. Provide more bits and try + again. */ + TRANSPORTDEC_SYNC_ERROR, /*!< No sync was found or sync got lost. Keep trying. + */ + tpdec_sync_error_end, + + /* Decode errors. Mostly caused due to bit errors. */ + tpdec_decode_error_start = 0x400, + TRANSPORTDEC_PARSE_ERROR, /*!< Bitstream data showed inconsistencies (wrong + syntax). */ + TRANSPORTDEC_UNSUPPORTED_FORMAT, /*!< Unsupported format or feature found in + the bitstream data. */ + TRANSPORTDEC_CRC_ERROR, /*!< CRC error encountered in bitstream data. */ + tpdec_decode_error_end, + + /* Fatal errors. Stop immediately on one of these errors! */ + tpdec_fatal_error_start = 0x200, + TRANSPORTDEC_UNKOWN_ERROR, /*!< An unknown error occured. */ + TRANSPORTDEC_INVALID_PARAMETER, /*!< An invalid parameter was passed to a + function. */ + TRANSPORTDEC_NEED_TO_RESTART, /*!< The decoder needs to be restarted, since + the requiered configuration change cannot + be performed. */ + TRANSPORTDEC_TOO_MANY_BITS, /*!< In case of packet based formats: Supplied + number of bits exceed the size of the + internal bit buffer. */ + tpdec_fatal_error_end + +} TRANSPORTDEC_ERROR; + +/** Macro to identify decode errors. */ +#define TPDEC_IS_DECODE_ERROR(err) \ + (((err >= tpdec_decode_error_start) && (err <= tpdec_decode_error_end)) ? 1 \ + : 0) +/** Macro to identify fatal errors. */ +#define TPDEC_IS_FATAL_ERROR(err) \ + (((err >= tpdec_fatal_error_start) && (err <= tpdec_fatal_error_end)) ? 1 : 0) + +/** + * \brief Parameter identifiers for transportDec_SetParam() + */ +typedef enum { + TPDEC_PARAM_MINIMIZE_DELAY = 1, /** Delay minimization strategy. 0: none, 1: + discard as many frames as possible. */ + TPDEC_PARAM_EARLY_CONFIG, /** Enable early config discovery. */ + TPDEC_PARAM_IGNORE_BUFFERFULLNESS, /** Ignore buffer fullness. */ + TPDEC_PARAM_SET_BITRATE, /** Set average bit rate for bit stream interruption + frame misses estimation. */ + TPDEC_PARAM_RESET, /** Reset transport decoder instance status. */ + TPDEC_PARAM_BURST_PERIOD, /** Set data reception burst period in mili seconds. + */ + TPDEC_PARAM_TARGETLAYOUT, /** Set CICP target layout */ + TPDEC_PARAM_FORCE_CONFIG_CHANGE, /** Force config change for next received + config */ + TPDEC_PARAM_USE_ELEM_SKIPPING +} TPDEC_PARAM; + +/*! + \brief Reset Program Config Element. + \param pPce Program Config Element structure. + \return void +*/ +void CProgramConfig_Reset(CProgramConfig *pPce); + +/*! + \brief Initialize Program Config Element. + \param pPce Program Config Element structure. + \return void +*/ +void CProgramConfig_Init(CProgramConfig *pPce); + +/*! + \brief Inquire state of present Program Config Element + structure. \param pPce Program Config Element structure. \return + 1 if the PCE structure is filled correct, 0 if no valid PCE present. +*/ +int CProgramConfig_IsValid(const CProgramConfig *pPce); + +/*! + \brief Read Program Config Element. + \param pPce Program Config Element structure. + \param bs Bitstream buffer to read from. + \param alignAnchor Align bitstream to alignAnchor bits after all read + operations. \return void +*/ +void CProgramConfig_Read(CProgramConfig *pPce, HANDLE_FDK_BITSTREAM bs, + UINT alignAnchor); + +/*! + \brief Compare two Program Config Elements. + \param pPce1 Pointer to first Program Config Element structure. + \param pPce2 Pointer to second Program Config Element structure. + \return -1 if PCEs are completely different, + 0 if PCEs are completely equal, + 1 if PCEs are different but have the same channel + config, 2 if PCEs have different channel config but same number of channels. +*/ +int CProgramConfig_Compare(const CProgramConfig *const pPce1, + const CProgramConfig *const pPce2); + +/*! + \brief Get a Program Config Element that matches the predefined + MPEG-4 channel configurations 1-14. \param pPce Program Config + Element structure. \param channelConfig MPEG-4 channel configuration. \return + void +*/ +void CProgramConfig_GetDefault(CProgramConfig *pPce, const UINT channelConfig); + +/** + * \brief Lookup and verify a given element. The decoder calls this + * method with every new element ID found in the bitstream. + * + * \param pPce A valid Program config structure. + * \param chConfig MPEG-4 channel configuration. + * \param tag Tag of the current element to be looked up. + * \param channelIdx The current channel count of the decoder parser. + * \param chMapping Array to store the canonical channel mapping indexes. + * \param chType Array to store the audio channel type. + * \param chIndex Array to store the individual audio channel type index. + * \param chDescrLen Length of the output channel description array. + * \param elMapping Pointer where the canonical element index is stored. + * \param elType The element id of the current element to be looked up. + * + * \return Non-zero if the element belongs to the current program, + * zero if it does not. + */ +int CProgramConfig_LookupElement(CProgramConfig *pPce, UINT chConfig, + const UINT tag, const UINT channelIdx, + UCHAR chMapping[], AUDIO_CHANNEL_TYPE chType[], + UCHAR chIndex[], const UINT chDescrLen, + UCHAR *elMapping, MP4_ELEMENT_ID elList[], + MP4_ELEMENT_ID elType); + +/** + * \brief Get table of channel indices in the order of their + * appearance in by the program config field. + * \param pPce A valid program config structure. + * \param pceChMap Array to store the channel mapping indices like they + * appear in the PCE. + * \param pceChMapLen Lenght of the channel mapping index array (pceChMap). + * + * \return Non-zero if any error occured otherwise zero. + */ +int CProgramConfig_GetPceChMap(const CProgramConfig *pPce, UCHAR pceChMap[], + const UINT pceChMapLen); + +/** + * \brief Get table of elements in canonical order from a + * give program config field. + * \param pPce A valid program config structure. + * \param table An array where the element IDs are stored. + * \param elListSize The length of the table array. + * \param pChMapIdx Pointer to a field receiving the corresponding + * implicit channel configuration index of the given + * PCE. If none can be found it receives the value 0. + * \return Total element count including all SCE, CPE and LFE. + */ +int CProgramConfig_GetElementTable(const CProgramConfig *pPce, + MP4_ELEMENT_ID table[], const INT elListSize, + UCHAR *pChMapIdx); + +/** + * \brief Get channel description (type and index) for implicit + configurations (chConfig > 0) in MPEG canonical order. + * \param chConfig MPEG-4 channel configuration. + * \param chType Array to store the audio channel type. + * \param chIndex Array to store the individual audio channel type index. + * \return void + */ +void CProgramConfig_GetChannelDescription(const UINT chConfig, + const CProgramConfig *pPce, + AUDIO_CHANNEL_TYPE chType[], + UCHAR chIndex[]); + +/** + * \brief Initialize a given AudioSpecificConfig structure. + * \param pAsc A pointer to an allocated CSAudioSpecificConfig struct. + * \return void + */ +void AudioSpecificConfig_Init(CSAudioSpecificConfig *pAsc); + +/** + * \brief Parse a AudioSpecificConfig from a given bitstream handle. + * + * \param pAsc A pointer to an allocated + * CSAudioSpecificConfig struct. + * \param hBs Bitstream handle. + * \param fExplicitBackwardCompatible Do explicit backward compatibility + * parsing if set (flag). + * \param cb pointer to structure holding callback information + * \param configMode Config modes: memory allocation mode or config change + * detection mode. + * \param configChanged Indicates a config change. + * \param m_aot in case of unequal AOT_NULL_OBJECT only the specific config is + * parsed. + * + * \return Total element count including all SCE, CPE and LFE. + */ +TRANSPORTDEC_ERROR AudioSpecificConfig_Parse( + CSAudioSpecificConfig *pAsc, HANDLE_FDK_BITSTREAM hBs, + int fExplicitBackwardCompatible, CSTpCallBacks *cb, UCHAR configMode, + UCHAR configChanged, AUDIO_OBJECT_TYPE m_aot); + +/* CELP stuff */ +enum { MPE = 0, RPE = 1, fs8KHz = 0, fs16KHz = 1 }; + +/* Defintion of flags that can be passed to transportDecOpen() */ +#define TP_FLAG_MPEG4 1 + +/* Capability flags */ +#define CAPF_TPDEC_ADIF \ + 0x00001000 /**< Flag indicating support for ADIF transport format. */ +#define CAPF_TPDEC_ADTS \ + 0x00002000 /**< Flag indicating support for ADTS transport format. */ +#define CAPF_TPDEC_LOAS \ + 0x00004000 /**< Flag indicating support for LOAS transport format. */ +#define CAPF_TPDEC_LATM \ + 0x00008000 /**< Flag indicating support for LATM transport format. */ +#define CAPF_TPDEC_RAWPACKETS \ + 0x00010000 /**< Flag indicating support for raw packets transport format. */ + +typedef struct TRANSPORTDEC *HANDLE_TRANSPORTDEC; + +/** + * \brief Configure Transport Decoder via a binary coded AudioSpecificConfig or + * StreamMuxConfig. The previously requested configuration callback will be + * called as well. The buffer conf must containt a SMC in case of + * LOAS/LATM transport format, and an ASC elseways. + * + * \param hTp Handle of a transport decoder. + * \param conf UCHAR buffer of the binary coded config (ASC or SMC). + * \param length The length in bytes of the conf buffer. + * + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_OutOfBandConfig(const HANDLE_TRANSPORTDEC hTp, + UCHAR *conf, const UINT length, + const UINT layer); + +/** + * \brief Configure Transport Decoder via a binary coded USAC/RSV603DA Config. + * The buffer newConfig contains a binary coded USAC/RSV603DA config of + * length newConfigLength bytes. If the new config and the previous config are + * different configChanged is set to 1 otherwise it is set to 0. + * + * \param hTp Handle of a transport decoder. + * \param newConfig buffer of the binary coded config. + * \param newConfigLength Length of new config in bytes. + * \param buildUpStatus Indicates build up status: off|on|idle. + * \param configChanged Indicates if config changed. + * \param layer Instance layer. + * + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_InBandConfig( + const HANDLE_TRANSPORTDEC hTp, UCHAR *newConfig, const UINT newConfigLength, + const UCHAR buildUpStatus, UCHAR *configChanged, const UINT layer, + UCHAR *implicitExplicitCfgDiff); + +/** + * \brief Open Transport medium for reading. + * + * \param transportDecFmt Format of the transport decoder medium to be accessed. + * \param flags Transport decoder flags. Currently only TP_FLAG_MPEG4, + * which signals a MPEG4 capable decoder (relevant for ADTS only). + * + * \return A pointer to a valid and allocated HANDLE_TRANSPORTDEC or a null + * pointer on failure. + */ +HANDLE_TRANSPORTDEC transportDec_Open(TRANSPORT_TYPE transportDecFmt, + const UINT flags, const UINT nrOfLayer); + +/** + * \brief Register configuration change callback. + * \param hTp Handle of transport decoder. + * \param cbUpdateConfig Pointer to a callback function to handle audio config + * changes. + * \param user_data void pointer for user data passed to the callback as + * first parameter. + * \return 0 on success. + */ +int transportDec_RegisterAscCallback(HANDLE_TRANSPORTDEC hTp, + const cbUpdateConfig_t cbUpdateConfig, + void *user_data); + +/** + * \brief Register free memory callback. + * \param hTp Handle of transport decoder. + * \param cbFreeMem Pointer to a callback function to free config dependent + * memory. + * \param user_data void pointer for user data passed to the callback as + * first parameter. + * \return 0 on success. + */ +int transportDec_RegisterFreeMemCallback(HANDLE_TRANSPORTDEC hTp, + const cbFreeMem_t cbFreeMem, + void *user_data); + +/** + * \brief Register config change control callback. + * \param hTp Handle of transport decoder. + * \param cbCtrlCFGChange Pointer to a callback function for config change + * control. + * \param user_data void pointer for user data passed to the callback as + * first parameter. + * \return 0 on success. + */ +int transportDec_RegisterCtrlCFGChangeCallback( + HANDLE_TRANSPORTDEC hTp, const cbCtrlCFGChange_t cbCtrlCFGChange, + void *user_data); + +/** + * \brief Register SSC parser callback. + * \param hTp Handle of transport decoder. + * \param cbUpdateConfig Pointer to a callback function to handle SSC parsing. + * \param user_data void pointer for user data passed to the callback as + * first parameter. + * \return 0 on success. + */ +int transportDec_RegisterSscCallback(HANDLE_TRANSPORTDEC hTp, + const cbSsc_t cbSscParse, void *user_data); + +/** + * \brief Register SBR header parser callback. + * \param hTp Handle of transport decoder. + * \param cbUpdateConfig Pointer to a callback function to handle SBR header + * parsing. + * \param user_data void pointer for user data passed to the callback as + * first parameter. + * \return 0 on success. + */ +int transportDec_RegisterSbrCallback(HANDLE_TRANSPORTDEC hTpDec, + const cbSbr_t cbSbr, void *user_data); + +/** + * \brief Register USAC SC parser callback. + * \param hTp Handle of transport decoder. + * \param cbUpdateConfig Pointer to a callback function to handle USAC SC + * parsing. + * \param user_data void pointer for user data passed to the callback as + * first parameter. + * \return 0 on success. + */ +int transportDec_RegisterUsacCallback(HANDLE_TRANSPORTDEC hTpDec, + const cbUsac_t cbUsac, void *user_data); + +/** + * \brief Register uniDrcConfig and loudnessInfoSet parser + * callback. + * \param hTp Handle of transport decoder. + * \param cbUpdateConfig Pointer to a callback function to handle uniDrcConfig + * and loudnessInfoSet parsing. + * \param user_data void pointer for user data passed to the callback as + * first parameter. + * \return 0 on success. + */ +int transportDec_RegisterUniDrcConfigCallback(HANDLE_TRANSPORTDEC hTpDec, + const cbUniDrc_t cbUniDrc, + void *user_data, + UINT *pLoudnessInfoSetPosition); + +/** + * \brief Fill internal input buffer with bitstream data from the external input + * buffer. The function only copies such data as long as the decoder-internal + * input buffer is not full. So it grabs whatever it can from pBuffer and + * returns information (bytesValid) so that at a subsequent call of + * %transportDec_FillData(), the right position in pBuffer can be determined to + * grab the next data. + * + * \param hTp Handle of transportDec. + * \param pBuffer Pointer to external input buffer. + * \param bufferSize Size of external input buffer. This argument is required + * because decoder-internally we need the information to calculate the offset to + * pBuffer, where the next available data is, which is then + * fed into the decoder-internal buffer (as much as + * possible). Our example framework implementation fills the + * buffer at pBuffer again, once it contains no available valid bytes anymore + * (meaning bytesValid equal 0). + * \param bytesValid Number of bitstream bytes in the external bitstream buffer + * that have not yet been copied into the decoder's internal bitstream buffer by + * calling this function. The value is updated according to + * the amount of newly copied bytes. + * \param layer The layer the bitstream belongs to. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_FillData(const HANDLE_TRANSPORTDEC hTp, + UCHAR *pBuffer, const UINT bufferSize, + UINT *pBytesValid, const INT layer); + +/** + * \brief Get transportDec bitstream handle. + * \param hTp Pointer to a transport decoder handle. + * \return HANDLE_FDK_BITSTREAM bitstream handle. + */ +HANDLE_FDK_BITSTREAM transportDec_GetBitstream(const HANDLE_TRANSPORTDEC hTp, + const UINT layer); + +/** + * \brief Get transport format. + * \param hTp Pointer to a transport decoder handle. + * \return The transport format. + */ +TRANSPORT_TYPE transportDec_GetFormat(const HANDLE_TRANSPORTDEC hTp); + +/** + * \brief Get the current buffer fullness value. + * + * \param hTp Handle of a transport decoder. + * + * \return Buffer fullness + */ +INT transportDec_GetBufferFullness(const HANDLE_TRANSPORTDEC hTp); + +/** + * \brief Close and deallocate transportDec. + * \param phTp Pointer to a previously allocated transport decoder handle. + * \return void + */ +void transportDec_Close(HANDLE_TRANSPORTDEC *phTp); + +/** + * \brief Read one access unit from the transportDec medium. + * \param hTp Handle of transportDec. + * \param length On return, this value is overwritten with the actual access + * unit length in bits. Set to -1 if length is unknown. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_ReadAccessUnit(const HANDLE_TRANSPORTDEC hTp, + const UINT layer); + +/** + * \brief Get AudioSpecificConfig. + * \param hTp Handle of transportDec. + * \param layer Transport layer. + * \param asc Pointer to AudioSpecificConfig. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_GetAsc(const HANDLE_TRANSPORTDEC hTp, + const UINT layer, + CSAudioSpecificConfig *asc); + +/** + * \brief Get the remaining amount of bits of the current access unit. The + * result can be below zero, meaning that too many bits have been read. + * \param hTp Handle of transportDec. + * \return amount of remaining bits. + */ +INT transportDec_GetAuBitsRemaining(const HANDLE_TRANSPORTDEC hTp, + const UINT layer); + +/** + * \brief Get the total amount of bits of the current access unit. + * \param hTp Handle of transportDec. + * \return amount of total bits. + */ +INT transportDec_GetAuBitsTotal(const HANDLE_TRANSPORTDEC hTp, + const UINT layer); + +/** + * \brief This function is required to be called when the decoder has + * finished parsing one Access Unit for bitstream housekeeping. + * \param hTp Transport Handle. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_EndAccessUnit(const HANDLE_TRANSPORTDEC hTp); + +/** + * \brief Obtain the amount of missing access units if applicable in case + * of a bit stream synchronization error. Each time + * transportDec_ReadAccessUnit() returns TRANSPORTDEC_SYNC_ERROR + * this function can be called to retrieve an estimate of the amount + * of missing access units. This works only in case of constant + * average bit rate (has to be known) and if the parameter + * TPDEC_PARAM_SET_BITRATE has been set accordingly. + * \param hTp Transport Handle. + * \param pNAccessUnits pointer to a memory location where the estimated lost + * frame count will be stored into. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_GetMissingAccessUnitCount( + INT *pNAccessUnits, HANDLE_TRANSPORTDEC hTp); + +/** + * \brief Set a given setting. + * \param hTp Transport Handle. + * \param param Identifier of the parameter to be changed. + * \param value Value for the parameter to be changed. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_SetParam(const HANDLE_TRANSPORTDEC hTp, + const TPDEC_PARAM param, + const INT value); + +/** + * \brief Get number of subframes (for LATM or ADTS) + * \param hTp Transport Handle. + * \return Number of ADTS/LATM subframes (return 1 for all other transport + * types). + */ +UINT transportDec_GetNrOfSubFrames(HANDLE_TRANSPORTDEC hTp); + +/** + * \brief Get info structure of transport decoder library. + * \param info A pointer to an allocated LIB_INFO struct. + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_GetLibInfo(LIB_INFO *info); + +/* ADTS CRC support */ + +/** + * \brief Set current bitstream position as start of a new data region. + * \param hTp Transport handle. + * \param mBits Size in bits of the data region. Set to 0 if it should not be + * of a fixed size. + * \return Data region ID, which should be used when calling + * transportDec_CrcEndReg(). + */ +int transportDec_CrcStartReg(const HANDLE_TRANSPORTDEC hTp, const INT mBits); + +/** + * \brief Set end of data region. + * \param hTp Transport handle. + * \param reg Data region ID, opbtained from transportDec_CrcStartReg(). + * \return void + */ +void transportDec_CrcEndReg(const HANDLE_TRANSPORTDEC hTp, const INT reg); + +/** + * \brief Calculate ADTS crc and check if it is correct. The ADTS checksum + * is held internally. + * \param hTp Transport handle. + * \return Return TRANSPORTDEC_OK if the CRC is ok, or error if CRC is not + * correct. + */ +TRANSPORTDEC_ERROR transportDec_CrcCheck(const HANDLE_TRANSPORTDEC hTp); + +/** + * \brief Only check whether a given config seems to be valid without modifying + * internal states. + * + * \param conf UCHAR buffer of the binary coded config (SDC type 9). + * \param length The length in bytes of the conf buffer. + * + * \return Error code. + */ +TRANSPORTDEC_ERROR transportDec_DrmRawSdcAudioConfig_Check(UCHAR *conf, + const UINT length); + +#endif /* #ifndef TPDEC_LIB_H */ |