diff options
Diffstat (limited to 'libMpegTPDec/src/tpdec_adif.cpp')
-rw-r--r-- | libMpegTPDec/src/tpdec_adif.cpp | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/libMpegTPDec/src/tpdec_adif.cpp b/libMpegTPDec/src/tpdec_adif.cpp new file mode 100644 index 0000000..7c47ea3 --- /dev/null +++ b/libMpegTPDec/src/tpdec_adif.cpp @@ -0,0 +1,93 @@ +/***************************** MPEG-4 AAC Decoder ************************** + + (C) Copyright Fraunhofer IIS (2004) + 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): Josef Hoepfl + Description: ADIF reader + + 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. + +******************************************************************************/ + +#include "tpdec_adif.h" + + +#include "FDK_bitstream.h" +#include "genericStds.h" + +TRANSPORTDEC_ERROR adifRead_DecodeHeader( + CAdifHeader *pAdifHeader, + CProgramConfig *pPce, + HANDLE_FDK_BITSTREAM bs + ) +{ + int i; + TRANSPORTDEC_ERROR ErrorStatus = TRANSPORTDEC_OK; + UINT startAnchor = FDKgetValidBits(bs); + + if ((INT)startAnchor < MIN_ADIF_HEADERLENGTH) { + return (TRANSPORTDEC_NOT_ENOUGH_BITS); + } + + if (FDKreadBits(bs,8) != 'A') { + return (TRANSPORTDEC_SYNC_ERROR); + } + if (FDKreadBits(bs,8) != 'D') { + return (TRANSPORTDEC_SYNC_ERROR); + } + if (FDKreadBits(bs,8) != 'I') { + return (TRANSPORTDEC_SYNC_ERROR); + } + if (FDKreadBits(bs,8) != 'F') { + return (TRANSPORTDEC_SYNC_ERROR); + } + + if ( (pAdifHeader->CopyrightIdPresent = FDKreadBits(bs,1)) != 0 ) + FDKpushBiDirectional(bs,72); /* CopyrightId */ + + + pAdifHeader->OriginalCopy = FDKreadBits(bs,1); + pAdifHeader->Home = FDKreadBits(bs,1); + pAdifHeader->BitstreamType = FDKreadBits(bs,1); + + /* pAdifHeader->BitRate = FDKreadBits(bs, 23); */ + pAdifHeader->BitRate = FDKreadBits(bs,16); + pAdifHeader->BitRate <<= 7; + pAdifHeader->BitRate |= FDKreadBits(bs,7); + + pAdifHeader->NumProgramConfigElements = FDKreadBits(bs,4) + 1; + + if (pAdifHeader->BitstreamType == 0) { + FDKpushBiDirectional(bs,20); /* adif_buffer_fullness */ + } + + /* Parse all PCEs but keep only one */ + for (i=0; i < pAdifHeader->NumProgramConfigElements; i++) + { + CProgramConfig_Read(pPce, bs, startAnchor); + } + + FDKbyteAlign(bs, startAnchor); + + return (ErrorStatus); +} + + + |