194 lines
8.8 KiB
C
194 lines
8.8 KiB
C
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/* -----------------------------------------------------------------------------------------------------------
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Software License for The Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android
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© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
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All rights reserved.
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1. INTRODUCTION
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The Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
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the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
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This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
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AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
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audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
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independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
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of the MPEG specifications.
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Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
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may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
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individually for the purpose of encoding or decoding bit streams in products that are compliant with
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the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
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these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
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software may already be covered under those patent licenses when it is used for those licensed purposes only.
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Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
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are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
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applications information and documentation.
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2. COPYRIGHT LICENSE
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Redistribution and use in source and binary forms, with or without modification, are permitted without
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payment of copyright license fees provided that you satisfy the following conditions:
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You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
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your modifications thereto in source code form.
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You must retain the complete text of this software license in the documentation and/or other materials
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provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
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You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
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modifications thereto to recipients of copies in binary form.
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The name of Fraunhofer may not be used to endorse or promote products derived from this library without
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prior written permission.
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You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
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software or your modifications thereto.
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Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
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and the date of any change. For modified versions of the FDK AAC Codec, the term
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"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
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"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
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3. NO PATENT LICENSE
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NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
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ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
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respect to this software.
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You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
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by appropriate patent licenses.
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4. DISCLAIMER
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This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
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"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
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of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
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including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
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or business interruption, however caused and on any theory of liability, whether in contract, strict
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liability, or tort (including negligence), arising in any way out of the use of this software, even if
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advised of the possibility of such damage.
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5. CONTACT INFORMATION
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Fraunhofer Institute for Integrated Circuits IIS
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Attention: Audio and Multimedia Departments - FDK AAC LL
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Am Wolfsmantel 33
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91058 Erlangen, Germany
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www.iis.fraunhofer.de/amm
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amm-info@iis.fraunhofer.de
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----------------------------------------------------------------------------------------------------------- */
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/***************************** MPEG-4 AAC Decoder **************************
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Author(s): Manuel Jander
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Description: Bitstream data provider for MP4 decoders
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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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