BitStream.h
上传用户:xjjlds
上传日期:2015-12-05
资源大小:22823k
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
- [uuid("30AB78C7-5259-4594-AEFE-9C0FC2F08A5E")]
- interface IBitStream : public IUnknown
- {
- STDMETHOD_(UINT64, GetPos) () = 0;
- STDMETHOD_(UINT64, Seek) (UINT64 pos) = 0; // it's a _stream_, please don't seek if you don't have to
- STDMETHOD(ByteWrite) (const void* pData, int len) = 0;
- STDMETHOD(BitWrite) (UINT64 data, int len) = 0;
- STDMETHOD(BitFlush) () = 0;
- };
- class CBitStream : public CUnknown, public IBitStream
- {
- CComPtr<IStream> m_pStream;
- bool m_fThrowError;
- UINT64 m_bitbuff;
- int m_bitlen;
- public:
- CBitStream(IStream* pStream, bool m_fThrowError = false);
- virtual ~CBitStream();
- DECLARE_IUNKNOWN;
- STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);
- // IBitStream
- STDMETHODIMP_(UINT64) GetPos();
- STDMETHODIMP_(UINT64) Seek(UINT64 pos);
- STDMETHODIMP ByteWrite(const void* pData, int len);
- STDMETHODIMP BitWrite(UINT64 data, int len);
- STDMETHODIMP BitFlush();
- };