mirror of https://github.com/mstorsjo/fdk-aac.git
133 lines
5.1 KiB
C
133 lines
5.1 KiB
C
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/***************************** MPEG-4 AAC Decoder **************************
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(C) Copyright Fraunhofer IIS (2006)
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All Rights Reserved
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Please be advised that this software and/or program delivery is
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Confidential Information of Fraunhofer and subject to and covered by the
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Fraunhofer IIS Software Evaluation Agreement
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between Google Inc. and Fraunhofer
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effective and in full force since March 1, 2012.
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You may use this software and/or program only under the terms and
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conditions described in the above mentioned Fraunhofer IIS Software
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Evaluation Agreement. Any other and/or further use requires a separate agreement.
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$Id$
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Author(s): Manuel Jander
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Description: Bitstream data provider for MP4 decoders
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This software and/or program is protected by copyright law and international
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treaties. Any reproduction or distribution of this software and/or program,
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or any portion of it, may result in severe civil and criminal penalties, and
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will be prosecuted to the maximum extent possible under law.
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******************************************************************************/
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#include "machine_type.h"
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#include "FDK_audio.h"
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#define MPFREAD_MP4FF_DISABLE
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#ifndef MPFREAD_MP4FF_DISABLE
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/*!< If MPFREAD_MP4FF_ENABLE is set, include support for MPEG ISO fileformat.
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If not set, no .mp4, .m4a and .3gp files can be used for input. */
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#define MPFREAD_MP4FF_ENABLE
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#endif
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/* maximum number of layers which can be read */
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/* shall equal max number of layers read by iisisoff */
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#define FILEREAD_MAX_LAYERS (2)
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typedef struct STRUCT_FILEREAD *HANDLE_FILEREAD;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief Open an MPEG audio file and try to detect its format.
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* \param filename String of the filename to be opened.
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* \param fileFormat Skip file format detection and use given format if fileFormat != FF_UNKNOWN.
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Else store detected format into *fileFmt.
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* \param transportType Skip transport type detection and use given format if transportType != TT_UNKNOWN.
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Else store detected format into *fileFmt.
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* \param conf Pointer to unsigned char to hold the AudioSpecificConfig of the input file, if
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any (MPEG 4 file format). In case of RAW LATM it holds the StreamMuxConfig.
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* \param confSize Pointer to an integer, where the length of the ASC or SMC (in case of RAW LATM)
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is stored to.
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* \return MPEG file read handle.
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*/
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HANDLE_FILEREAD mpegFileRead_Open( const char *filename,
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FILE_FORMAT fileFormat,
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TRANSPORT_TYPE transportType,
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UCHAR *conf[],
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UINT confSize[],
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INT *noOfLayers
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);
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/**
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* \brief Get the file format of the input file.
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* \param hDataSrc MPEG file read handle.
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* \return File format of the input file.
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*/
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FILE_FORMAT mpegFileRead_GetFileFormat(HANDLE_FILEREAD hDataSrc);
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/**
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* \brief Get the transport type of the input file.
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* \param hDataSrc MPEG file read handle.
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* \return Transport type of the input file.
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*/
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TRANSPORT_TYPE mpegFileRead_GetTransportType(HANDLE_FILEREAD hDataSrc);
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/**
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* \brief Read data from MPEG file. In case of packet file, read one packet, in case
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* of streaming file with embedded synchronisation layer (LOAS/ADTS...), just
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* fill the buffer.
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*
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* \param hMpegFile MPEG file read handle.
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* \param inBuffer Pointer to input buffer.
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* \param bufferSize Size of input buffer.
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* \param bytesValid Number of bytes that were read.
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* \return 0 on success, -1 if unsupported file format or file read error.
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*/
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int mpegFileRead_Read( HANDLE_FILEREAD hMpegFile,
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UCHAR *inBuffer[],
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UINT bufferSize,
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UINT *bytesValid
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);
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/**
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* \brief Seek in file from origin by given offset in frames.
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* \param hMpegFile MPEG file read handle.
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* \param origin If 0, the origin is the file beginning (absolute seek).
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* If 1, the origin is the current position (relative seek).
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* \param offset The amount of frames to seek from the given origin.
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* \return 0 on sucess, -1 if offset < 0 or file read error.
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*/
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int mpegFileRead_seek( HANDLE_FILEREAD hMpegFile,
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INT origin,
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INT offset
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);
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/**
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* \brief Get file position in percent.
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* \param hMpegFile MPEG file read handle.
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* \return File position in percent.
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*/
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int mpegFileRead_getPercent(HANDLE_FILEREAD hMpegFile);
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/**
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* \brief Close MPEG audio file.
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* \param hMpegFile Mpeg file read handle.
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* \return 0 on sucess.
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*/
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int mpegFileRead_Close(HANDLE_FILEREAD *hMpegFile);
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#ifdef __cplusplus
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}
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#endif
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