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Diffstat (limited to 'libMpegTPEnc/include/tpenc_lib.h')
| -rw-r--r-- | libMpegTPEnc/include/tpenc_lib.h | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/libMpegTPEnc/include/tpenc_lib.h b/libMpegTPEnc/include/tpenc_lib.h new file mode 100644 index 0000000..9c40211 --- /dev/null +++ b/libMpegTPEnc/include/tpenc_lib.h @@ -0,0 +1,234 @@ +/************************** MPEG-4 Transport Encoder ************************ + + (C) Copyright Fraunhofer IIS (2006) + All Rights Reserved + + Please be advised that this software and/or program delivery is + Confidential Information of Fraunhofer and subject to and covered by the + + Fraunhofer IIS Software Evaluation Agreement + between Google Inc. and Fraunhofer + effective and in full force since March 1, 2012. + + You may use this software and/or program only under the terms and + conditions described in the above mentioned Fraunhofer IIS Software + Evaluation Agreement. Any other and/or further use requires a separate agreement. + + + $Id$ + Author(s): Manuel Jander + Description: MPEG Transport encode + + This software and/or program is protected by copyright law and international + treaties. Any reproduction or distribution of this software and/or program, + or any portion of it, may result in severe civil and criminal penalties, and + will be prosecuted to the maximum extent possible under law. + +******************************************************************************/ + +#ifndef __TPENC_LIB_H__ +#define __TPENC_LIB_H__ + +#include "tp_data.h" +#include "FDK_bitstream.h" + +#define TRANSPORTENC_INBUF_SIZE 8192 + +typedef enum { + TRANSPORTENC_OK = 0, /*!< All fine. */ + TRANSPORTENC_NO_MEM, /*!< Out of memory. */ + TRANSPORTENC_UNKOWN_ERROR = 1, /*!< Unknown error (embarrasing). */ + TRANSPORTENC_INVALID_PARAMETER, /*!< An invalid parameter was passed to a function . */ + TRANSPORTENC_PARSE_ERROR, /*!< Bitstream data contained inconsistencies (wrong syntax). */ + TRANSPORTENC_UNSUPPORTED_FORMAT, /*!< Unsupported transport format. */ + TRANSPORTENC_NOT_ENOUGH_BITS, /*!< Out of bits. Provide more bits and try again. */ + + TRANSPORTENC_INVALID_CONFIG, /*!< Error in configuration. */ + TRANSPORTENC_LATM_INVALID_NR_OF_SUBFRAMES, /*!< LATM: number of subframes out of range. */ + TRANSPORTENC_LOAS_NOT_AVAILABLE, /*!< LOAS format not supported. */ + TRANSPORTENC_INVALID_LATM_ALIGNMENT, /*!< AudioMuxElement length not aligned to 1 byte. */ + + TRANSPORTENC_INVALID_TRANSMISSION_FRAME_LENGTH, /*!< Invalid transmission frame length (< 0). */ + TRANSPORTENC_INVALID_CELP_FRAME_LENGTH, /*!< Invalid CELP frame length found (>= 62). */ + TRANSPORTENC_INVALID_FRAME_BITS, /*!< Frame bits is not 40 and not 80. */ + TRANSPORTENC_INVALID_AOT, /*!< Unknown AOT found. */ + TRANSPORTENC_INVALID_AU_LENGTH /*!< Invalid Access Unit length (not byte-aligned). */ + +} TRANSPORTENC_ERROR; + +typedef struct TRANSPORTENC *HANDLE_TRANSPORTENC; + +/** + * \brief Determine a reasonable channel configuration on the basis of channel_mode. + * \param noChannels Number of audio channels. + * \return CHANNEL_MODE value that matches the given amount of audio channels. + */ +CHANNEL_MODE transportEnc_GetChannelMode( int noChannels ); + +/** + * \brief Register SBR heaqder writer callback. + * \param hTp Handle of transport decoder. + * \param cbUpdateConfig Pointer to a callback function to handle SBR header writing. + * \param user_data void pointer for user data passed to the callback as first parameter. + * \return 0 on success. + */ +int transportEnc_RegisterSbrCallback ( + HANDLE_TRANSPORTENC hTpEnc, + const cbSbr_t cbSbr, + void* user_data + ); + +/** + * \brief Register SSC writer callback. + * \param hTp Handle of transport decoder. + * \param cbUpdateConfig Pointer to a callback function to handle SSC writing. + * \param user_data void pointer for user data passed to the callback as first parameter. + * \return 0 on success. + */ +int transportEnc_RegisterSscCallback ( + HANDLE_TRANSPORTENC hTpEnc, + const cbSsc_t cbSsc, + void* user_data + ); + +/** + * \brief Write ASC from given parameters. + * \param asc A HANDLE_FDK_BITSTREAM where the ASC is written to. + * \param config Structure containing the codec configuration settings. + * \param cb callback information structure. + * \return 0 on success. + */ +int transportEnc_writeASC ( + HANDLE_FDK_BITSTREAM asc, + CODER_CONFIG *config, + CSTpCallBacks *cb + ); + + +/* Defintion of flags that can be passed to transportEnc_Open() */ +#define TP_FLAG_MPEG4 1 /** MPEG4 (instead of MPEG2) */ +#define TP_FLAG_LATM_AMV 2 /** LATM AudioMuxVersion */ +#define TP_FLAG_LATM_AMVA 4 /** LATM AudioMuxVersionA */ + +/** + * \brief Allocate transport encoder. + * \param phTpEnc Pointer to transport encoder handle. + * \return Error code. + */ +TRANSPORTENC_ERROR transportEnc_Open( HANDLE_TRANSPORTENC *phTpEnc ); + +/** + * \brief Init transport encoder. + * \param bsBuffer Pointer to transport encoder. + * \param bsBuffer Pointer to bitstream buffer. + * \param bsBufferSize Size in bytes of bsBuffer. + * \param transportFmt Format of the transport to be written. + * \param config Pointer to a valid CODER_CONFIG struct. + * \param flags Transport encoder flags. + * \return Error code. + */ +TRANSPORTENC_ERROR transportEnc_Init( + HANDLE_TRANSPORTENC hTpEnc, + UCHAR *bsBuffer, + INT bsBufferSize, + TRANSPORT_TYPE transportFmt, + CODER_CONFIG *config, + UINT flags + ); + +/** + * \brief Get transport encoder bitstream. + * \param hTp Pointer to a transport encoder handle. + * \return The handle to the requested FDK bitstream. + */ +HANDLE_FDK_BITSTREAM transportEnc_GetBitstream( HANDLE_TRANSPORTENC hTp ); + +/** + * \brief Get amount of bits required by the transport headers. + * \param hTp Handle of transport encoder. + * \param auBits Amount of payload bits required for the current subframe. + * \return Error code. + */ +INT transportEnc_GetStaticBits( HANDLE_TRANSPORTENC hTp, int auBits ); + +/** + * \brief Close transport encoder. This function assures that all allocated memory is freed. + * \param phTp Pointer to a previously allocated transport encoder handle. + */ +void transportEnc_Close( HANDLE_TRANSPORTENC *phTp ); + +/** + * \brief Write one access unit. + * \param hTp Handle of transport encoder. + * \param total_bits Amount of total access unit bits. + * \param bufferFullness Value of current buffer fullness in bits. + * \param noConsideredChannels Number of bitrate wise considered channels (all minus LFE channels). + * \return Error code. + */ +TRANSPORTENC_ERROR transportEnc_WriteAccessUnit( HANDLE_TRANSPORTENC hTp, + INT total_bits, + int bufferFullness, + int noConsideredChannels ); + +/** + * \brief Inform the transportEnc layer that writing of access unit has finished. This function + * is required to be called when the encoder has finished writing one Access + * one Access Unit for bitstream housekeeping. + * \param hTp Transport handle. + * \param pBits Pointer to an int, where the current amount of frame bits is passed + * and where the current amount of subframe bits is returned. + * + * OR: This integer is modified by the amount of extra bit alignment that may occurr. + * + * \return Error code. + */ +TRANSPORTENC_ERROR transportEnc_EndAccessUnit( HANDLE_TRANSPORTENC hTp, int *pBits); + +/* + * \brief Get a payload frame. + * \param hTpEnc Transport encoder handle. + * \param nBytes Pointer to an int to hold the frame size in bytes. Returns zero + * if currently there is no complete frame for output (number of sub frames > 1). + * \return Error code. + */ +TRANSPORTENC_ERROR transportEnc_GetFrame(HANDLE_TRANSPORTENC hTpEnc, int *nbytes); + +/* ADTS CRC support */ + +/** + * \brief Set current bitstream position as start of a new data region. + * \param hTpEnc Transport encoder 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 transportEnc_CrcEndReg(). + */ +int transportEnc_CrcStartReg(HANDLE_TRANSPORTENC hTpEnc, int mBits); + +/** + * \brief Set end of data region. + * \param hTpEnc Transport encoder handle. + * \param reg Data region ID, opbtained from transportEnc_CrcStartReg(). + * \return void + */ +void transportEnc_CrcEndReg(HANDLE_TRANSPORTENC hTpEnc, int reg); + +/** + * \brief Get AudioSpecificConfig or StreamMuxConfig from transport encoder handle and write it to dataBuffer. + * \param hTpEnc Transport encoder handle. + * \param cc Pointer to the current and valid configuration contained in a CODER_CONFIG struct. + * \param dataBuffer Bitbuffer holding binary configuration. + * \param confType Pointer to an UINT where the configuration type is returned (0:ASC, 1:SMC). + * \return Error code. + */ +TRANSPORTENC_ERROR transportEnc_GetConf( HANDLE_TRANSPORTENC hTpEnc, + CODER_CONFIG *cc, + FDK_BITSTREAM *dataBuffer, + UINT *confType ); + +/** + * \brief Get information (version among other things) of the transport encoder library. + * \param info Pointer to an allocated LIB_INFO struct. + * \return Error code. + */ +TRANSPORTENC_ERROR transportEnc_GetLibInfo( LIB_INFO *info ); + +#endif /* #ifndef __TPENC_LIB_H__ */ |