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Diffstat (limited to 'libMpegTPDec/src/tpdec_adts.h')
| -rw-r--r-- | libMpegTPDec/src/tpdec_adts.h | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/libMpegTPDec/src/tpdec_adts.h b/libMpegTPDec/src/tpdec_adts.h deleted file mode 100644 index a3b83a5..0000000 --- a/libMpegTPDec/src/tpdec_adts.h +++ /dev/null @@ -1,236 +0,0 @@ - -/* ----------------------------------------------------------------------------------------------------------- -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): Josef Hoepfl - Description: ADTS interface - -******************************************************************************/ - -#ifndef TPDEC_ADTS_H -#define TPDEC_ADTS_H - -#include "tpdec_lib.h" - - -#define ADTS_SYNCWORD ( 0xfff ) -#define ADTS_SYNCLENGTH ( 12 ) /* in bits */ -#define ADTS_HEADERLENGTH ( 56 ) /* minimum header size in bits */ -#define ADTS_FIXED_HEADERLENGTH ( 28 ) /* in bits */ -#define ADTS_VARIABLE_HEADERLENGTH ( ADTS_HEADERLENGTH - ADTS_FIXED_HEADERLENGTH ) - -#ifdef CHECK_TWO_SYNCS - #define ADTS_MIN_TP_BUF_SIZE ( 8191 + 2 ) -#else - #define ADTS_MIN_TP_BUF_SIZE ( 8191 ) -#endif - -#include "FDK_crc.h" - -typedef struct { - /* ADTS header fields */ - UCHAR mpeg_id; - UCHAR layer; - UCHAR protection_absent; - UCHAR profile; - UCHAR sample_freq_index; - UCHAR private_bit; - UCHAR channel_config; - UCHAR original; - UCHAR home; - UCHAR copyright_id; - UCHAR copyright_start; - USHORT frame_length; - USHORT adts_fullness; - UCHAR num_raw_blocks; - UCHAR num_pce_bits; -} STRUCT_ADTS_BS; - -struct STRUCT_ADTS { - - STRUCT_ADTS_BS bs; - - UCHAR decoderCanDoMpeg4; - UCHAR BufferFullnesStartFlag; - - FDK_CRCINFO crcInfo; /* CRC state info */ - USHORT crcReadValue; /* CRC value read from bitstream data */ - USHORT rawDataBlockDist[4]; /* distance between each raw data block. Not the same as found in the bitstream */ -} ; - -typedef struct STRUCT_ADTS *HANDLE_ADTS; - -/*! - \brief Initialize ADTS CRC - - The function initialzes the crc buffer and the crc lookup table. - - \return none -*/ -void adtsRead_CrcInit( HANDLE_ADTS pAdts ); - -/** - * \brief Starts CRC region with a maximum number of bits - * If mBits is positive zero padding will be used for CRC calculation, if there - * are less than mBits bits available. - * If mBits is negative no zero padding is done. - * If mBits is zero the memory for the buffer is allocated dynamically, the - * number of bits is not limited. - * - * \param pAdts ADTS data handle - * \param hBs bitstream handle, on which the CRC region referes to - * \param mBits max number of bits in crc region to be considered - * - * \return ID for the created region, -1 in case of an error - */ -int adtsRead_CrcStartReg( - HANDLE_ADTS pAdts, - HANDLE_FDK_BITSTREAM hBs, - int mBits - ); - -/** - * \brief Ends CRC region identified by reg - * - * \param pAdts ADTS data handle - * \param hBs bitstream handle, on which the CRC region referes to - * \param reg CRC regions ID returned by adtsRead_CrcStartReg() - * - * \return none - */ -void adtsRead_CrcEndReg( - HANDLE_ADTS pAdts, - HANDLE_FDK_BITSTREAM hBs, - int reg - ); - -/** - * \brief Check CRC - * - * Checks if the currently calculated CRC matches the CRC field read from the bitstream - * Deletes all CRC regions. - * - * \param pAdts ADTS data handle - * - * \return Returns 0 if they are identical otherwise 1 - */ -TRANSPORTDEC_ERROR adtsRead_CrcCheck( HANDLE_ADTS pAdts ); - - -/** - * \brief Check if we have a valid ADTS frame at the current bitbuffer position - * - * This function assumes enough bits in buffer for the current frame. - * It reads out the header bits to prepare the bitbuffer for the decode loop. - * In case the header bits show an invalid bitstream/frame, the whole frame is skipped. - * - * \param pAdts ADTS data handle which is filled with parsed ADTS header data - * \param bs handle of bitstream from whom the ADTS header is read - * - * \return error status - */ -TRANSPORTDEC_ERROR adtsRead_DecodeHeader( - HANDLE_ADTS pAdts, - CSAudioSpecificConfig *pAsc, - HANDLE_FDK_BITSTREAM bs, - const INT ignoreBufferFullness - ); - -/** - * \brief Get the raw data block length of the given block number. - * - * \param pAdts ADTS data handle - * \param blockNum current raw data block index - * \param pLength pointer to an INT where the length of the given raw data block is stored into - * the returned value might be -1, in which case the raw data block length is unknown. - * - * \return error status - */ -int adtsRead_GetRawDataBlockLength( - HANDLE_ADTS pAdts, - INT blockNum - ); - - -#endif /* TPDEC_ADTS_H */ |