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Diffstat (limited to 'libAACdec/src/pulsedata.h')
-rw-r--r-- | libAACdec/src/pulsedata.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/libAACdec/src/pulsedata.h b/libAACdec/src/pulsedata.h new file mode 100644 index 0000000..075a0c4 --- /dev/null +++ b/libAACdec/src/pulsedata.h @@ -0,0 +1,83 @@ +/***************************** 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: pulse data tool + + 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 PULSEDATA_H +#define PULSEDATA_H + + + +#include "common_fix.h" +#include "FDK_bitstream.h" + +#define N_MAX_LINES 4 + +typedef struct +{ + UCHAR PulseDataPresent; + UCHAR NumberPulse; + UCHAR PulseStartBand; + UCHAR PulseOffset[N_MAX_LINES]; + UCHAR PulseAmp[N_MAX_LINES]; +} CPulseData; + +/** + * \brief Read pulse data from bitstream + * + * The function reads the elements for pulse data from + * the bitstream. + * + * \param bs bit stream handle data source. + * \param PulseData pointer to a CPulseData were the decoded data is stored into. + * \param MaxSfBands max number of scale factor bands. + * \return 0 on success, != 0 on parse error. + */ +INT CPulseData_Read( + const HANDLE_FDK_BITSTREAM bs, + CPulseData *const PulseData, + const SHORT *sfb_startlines, + const void *pIcsInfo, + const SHORT frame_length + ); + +/** + * \brief Apply pulse data to spectral lines + * + * The function applies the pulse data to the + * specified spectral lines. + * + * \param PulseData pointer to the previously decoded pulse data. + * \param pScaleFactorBandOffsets scale factor band line offset table. + * \param coef pointer to the spectral data were pulse data should be applied to. + * \return none +*/ +void CPulseData_Apply(CPulseData *PulseData, + const short *pScaleFactorBandOffsets, + FIXP_DBL *coef); + + +#endif /* #ifndef PULSEDATA_H */ |