84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/**
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*
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* Lame ACM wrapper, encode/decode MP3 based RIFF/AVI files in MS Windows
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*
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* Copyright (c) 2002 Steve Lhomme <steve.lhomme at free.fr>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/*!
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\author Steve Lhomme
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\version \$Id: DecodeStream.h,v 1.2 2006/12/25 21:37:34 robert Exp $
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*/
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#if !defined(_DECODESTREAM_H__INCLUDED_)
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#define _DECODESTREAM_H__INCLUDED_
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#if _MSC_VER >= 1000
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#pragma once
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#endif // _MSC_VER >= 1000
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#include <mmreg.h>
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#include <msacm.h>
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#include <msacmdrv.h>
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#include "ADbg/ADbg.h"
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struct lame_global_flags;
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class DecodeStream
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{
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public:
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DecodeStream( );
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virtual ~DecodeStream( );
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static DecodeStream * Create();
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static const bool Erase(const DecodeStream * a_ACMStream);
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bool init(const int nSamplesPerSec, const int nChannels, const int nAvgBytesPerSec, const int nSourceBitrate);
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bool open();
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bool close(LPBYTE pOutputBuffer, DWORD *pOutputSize);
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DWORD GetOutputSizeForInput(const DWORD the_SrcLength) const;
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bool ConvertBuffer(LPACMDRVSTREAMHEADER a_StreamHeader);
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static unsigned int GetOutputSampleRate(int samples_per_sec, int bitrate, int channels);
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protected:
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lame_global_flags * gfp;
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ADbg * my_debug;
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int my_SamplesPerSec;
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int my_Channels;
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int my_AvgBytesPerSec;
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DWORD my_SamplesPerBlock;
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int my_SourceBitrate;
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MPSTR my_DecodeData;
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unsigned int m_WorkingBufferUseSize;
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char m_WorkingBuffer[2304*2]; // should be at least twice my_SamplesPerBlock
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inline int GetBytesPerBlock(DWORD bytes_per_sec, DWORD samples_per_sec, int BlockAlign) const;
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};
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#endif // !defined(_DECODESTREAM_H__INCLUDED_)
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