?? avireadhandler.h
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// VirtualDub - Video processing and capture application
// Copyright (C) 1998-2001 Avery Lee
//
// 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 f_AVIREADHANDLER_H
#define f_AVIREADHANDLER_H
#include <windows.h>
#include <vfw.h>
// These are meant as AVIFile replacements. They're not quite to AVIFile
// specs, but they'll do for now.
class IAVIReadStream {
public:
virtual ~IAVIReadStream();
virtual HRESULT BeginStreaming(long lStart, long lEnd, long lRate)=0;
virtual HRESULT EndStreaming()=0;
virtual HRESULT Info(AVISTREAMINFO *pasi, long lSize)=0;
virtual bool IsKeyFrame(long lFrame)=0;
virtual HRESULT Read(long lStart, long lSamples, void *lpBuffer, long cbBuffer, long *plBytes, long *plSamples)=0;
virtual long Start()=0;
virtual long End()=0;
virtual long PrevKeyFrame(long lFrame)=0;
virtual long NextKeyFrame(long lFrame)=0;
virtual long NearestKeyFrame(long lFrame)=0;
virtual __int64 FramePos(long lFrame)=0;
virtual HRESULT FormatSize(long lFrame, long *plSize)=0;
virtual HRESULT ReadFormat(long lFrame, void *pFormat, long *plSize)=0;
virtual bool isStreaming()=0;
virtual bool isKeyframeOnly()=0;
};
class IAVIReadHandler {
public:
virtual void AddRef()=0;
virtual void Release()=0;
virtual IAVIReadStream *GetStream(DWORD fccType, LONG lParam)=0;
virtual void EnableFastIO(bool)=0;
virtual bool isOptimizedForRealtime()=0;
virtual bool isStreaming()=0;
virtual bool isIndexFabricated()=0;
virtual bool AppendFile(const char *pszFile)=0;
virtual bool getSegmentHint(const char **ppszPath)=0;
};
IAVIReadHandler *CreateAVIReadHandler(PAVIFILE paf);
IAVIReadHandler *CreateAVIReadHandler(const char *pszFile);
#endif
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