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62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
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/* $Header: /cvs/root/winamp/vlb/pulsedata.h,v 1.1 2009/04/28 20:21:10 audiodsp Exp $ */
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/***************************************************************************\
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*
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* Copyright 2000-2002 Dolby Laboratories, Inc. All Rights
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* Reserved. Do not copy. Do not distribute.
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* Confidential information.
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*
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* (C) copyright Fraunhofer - IIS (1998)
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* All Rights Reserved
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*
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* filename: pulsedata.cpp
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* project : MPEG-2 AAC Decoder
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* contents/description: pulse data tool
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*
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\***************************************************************************/
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#ifndef __PULSEDATA_H__
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#define __PULSEDATA_H__
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#include "bitsequence.h"
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class CChannelInfo ;
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/** Pulse Data Processing.
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This class represents the pulse data noiseless coding tool for decoding and
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applying pulse data to the spectral coefficients of the current block.
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The Pulse Data tool is not profile-dependent and the CPulseData implementation
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follows the Read()/Apply() convention used for all tools.
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*/
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class CPulseData
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{
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public :
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CPulseData () ;
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~CPulseData () ;
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void Read (CDolbyBitStream &bs) ;
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void Apply (const CChannelInfo &info, int coef []) ;
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enum
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{
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MaximumLines = 4
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} ;
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protected :
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CVLBBitSequence m_PulseDataPresent ;
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CVLBBitSequence m_NumberPulse ;
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CVLBBitSequence m_PulseStartBand ;
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CVLBBitSequence m_PulseOffset [MaximumLines] ;
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CVLBBitSequence m_PulseAmp [MaximumLines] ;
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} ;
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#endif
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