#ifndef f_AVIREADHANDLER_H
#define f_AVIREADHANDLER_H

#include <wine/windef.h>
#include <wine/vfw.h>
#include "AVIIndex.h"
#include "Cache.h"

class IvAVIReadStream {
public:
	virtual ~IvAVIReadStream();
	virtual HRESULT BeginStreaming(long lStart, long lEnd, long lRate)=0;
			    //starts cacheable mode
			    //lRate not used
	virtual HRESULT EndStreaming()=0;
	virtual HRESULT Header(AVIStreamHeader* pheader)=0;
//	virtual HRESULT ChunkTable(AVIIndex** ppIndex)=0;
	virtual HRESULT Info(AVISTREAMINFO *pasi, long lSize)=0;
//very Microsoft'ish
	//copy some data from two structures to third
	virtual bool IsKeyFrame(long lFrame) const =0;
	virtual HRESULT Read(long lStart, long lSamples, void *lpBuffer, long cbBuffer, long *plBytes, long *plSamples)=0;
	virtual long Start()=0;
//start position
	virtual long End()=0;
  //end position
	virtual long PrevKeyFrame(long lFrame)=0;
	virtual long NextKeyFrame(long lFrame)=0;
	virtual long NearestKeyFrame(long lFrame)=0;
	virtual long Length() const =0;
	virtual HRESULT FormatSize(long lFrame, long *plSize)=0;
	virtual HRESULT ReadFormat(long lFrame, void *pFormat, long *plSize)=0;
	virtual bool isStreaming()=0;
	virtual void ClearCache()=0;
};

class IvAVIReadHandler {
public:
	virtual ~IvAVIReadHandler();
	virtual void AddRef()=0;
	virtual void Release()=0;
	virtual IvAVIReadStream *GetStream(DWORD fccType, LONG lParam)=0;
//vids/auds, 0-...
	virtual void EnableFastIO(bool)=0;
//not needed
	virtual bool isOptimizedForRealtime()=0;
//not needed
	virtual bool isStreaming()=0;
	virtual bool isIndexFabricated()=0;
//hmmm
	virtual bool AppendFile(const char *pszFile)=0;
	virtual bool getSegmentHint(const char **ppszPath)=0;
//not needed?
	virtual HRESULT Header(MainAVIHeader* pheader)=0;
};

IvAVIReadHandler *CreateAVIReadHandler(const char *pszFile);

#endif