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/*
* 21.04.2004 Original verion. davagin@udm.ru.
*-----------------------------------------------------------------------
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*----------------------------------------------------------------------
*/
#ifndef JMAC_APEDECOMPRESS_H
#define JMAC_APEDECOMPRESS_H
class CUnBitArray;
class CPrepare;
class CAPEInfo;
class IPredictorDecompress;
#include <UnBitArrayBase.h>
#include <MACLib.h>
#include <Prepare.h>
#include <CircleBuffer.h>
#include "UnBitArrayJMAC.h"
class CAPEDecompressJMAC : public IAPEDecompress {
public:
CAPEDecompressJMAC(JNIEnv* aenv, jobject athisObject, jobject aioObject, int nVersion, int nCompressionLevel, int nStartBlock,
int nFinishBlock, int nTotalBlocks, int nBlockAlign, int nBlocksPerFrame, int nSampleRate, int nBitsPerSample,
int nChannels);
~CAPEDecompressJMAC();
inline void SetRefs(JNIEnv* aenv, jobject athisObject, jobject aioObject) {
env = aenv;
thisObject = athisObject;
ioObject = aioObject;
}
int getApeInfoFrameBlocks(int nFrameIndex);
int getApeInfoSeekByte(int nFrameIndex);
int GetData(char* pBuffer, int nBlocks, int* pBlocksRetrieved);
int Seek(int nBlockOffset);
int GetInfo(APE_DECOMPRESS_FIELDS Field, int nParam1 = 0, int nParam2 = 0);
protected:
// file info
int m_nBlockAlign;
int m_nCurrentFrame;
int m_nRealFrame;
// start / finish information
int m_nStartBlock;
int m_nFinishBlock;
int m_nCurrentBlock;
BOOL m_bIsRanged;
BOOL m_bDecompressorInitialized;
// decoding tools
CPrepare m_Prepare;
WAVEFORMATEX m_wfeInput;
unsigned int m_nCRC;
unsigned int m_nStoredCRC;
int m_nSpecialCodes;
int SeekToFrame(int nFrameIndex);
void DecodeBlocksToFrameBuffer(int nBlocks);
int FillFrameBuffer();
void StartFrame();
void EndFrame();
int InitializeDecompressor();
// more decoding components
CSmartPtr<CAPEInfo> m_spAPEInfo;
CSmartPtr<CUnBitArrayBase> m_spUnBitArray;
UNBIT_ARRAY_STATE m_BitArrayStateX;
UNBIT_ARRAY_STATE m_BitArrayStateY;
CSmartPtr<IPredictorDecompress> m_spNewPredictorX;
CSmartPtr<IPredictorDecompress> m_spNewPredictorY;
int m_nLastX;
// decoding buffer
BOOL m_bErrorDecodingCurrentFrame;
int m_nCurrentFrameBufferBlock;
int m_nFrameBufferFinishedBlocks;
CCircleBuffer m_cbFrameBuffer;
int m_nVersion;
int m_nCompressionLevel;
int m_nBlocksPerFrame;
int m_nBitsPerSample;
friend class CUnBitArrayJMAC;
JNIEnv* env;
jobject ioObject;
jobject thisObject;
};
#endif // #ifndef JMAC_APEDECOMPRESS_H
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