BaseSplitterFile.h
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上传日期:2015-12-05
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文件大小:2k
- /*
- * Copyright (C) 2003-2005 Gabest
- * http://www.gabest.org
- *
- * 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, 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 GNU Make; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- */
- #pragma once
- #include <atlcoll.h>
- class CBaseSplitterFile
- {
- CComPtr<IAsyncReader> m_pAsyncReader;
- CAutoVectorPtr<BYTE> m_pCache;
- __int64 m_cachepos, m_cachelen, m_cachetotal;
- bool m_fStreaming;
- __int64 m_pos, m_len;
- protected:
- UINT64 m_bitbuff;
- int m_bitlen;
- enum {DEFAULT_CACHELEN = 2048};
- public:
- CBaseSplitterFile(IAsyncReader* pReader, HRESULT& hr, int cachelen = DEFAULT_CACHELEN);
- virtual ~CBaseSplitterFile() {}
- bool SetCacheSize(int cachelen = DEFAULT_CACHELEN);
- __int64 GetPos();
- __int64 GetLength();
- virtual void Seek(__int64 pos);
- virtual HRESULT Read(BYTE* pData, __int64 len);
- UINT64 UExpGolombRead();
- INT64 SExpGolombRead();
- UINT64 BitRead(int nBits, bool fPeek = false);
- void BitByteAlign(), BitFlush();
- HRESULT ByteRead(BYTE* pData, __int64 len);
- bool IsStreaming() {return m_fStreaming;}
- HRESULT HasMoreData(__int64 len = 1, DWORD ms = 1);
- };