movieview.h

自制电影播放器

//==========================================================================;
//
//  THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
//  KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
//  IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
//  PURPOSE.
//
//  Copyright (c) 1994 - 1998  Microsoft Corporation.  All Rights Reserved.
//
//--------------------------------------------------------------------------;
//

// MovieView.h : interface of the CMovieView class
// aze
// (c) Stephane Rodriguez 98
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_MOVIEVIEW_H__8F3E666D_3B66_11D2_92F7_00104B498E9D__INCLUDED_)
#define AFX_MOVIEVIEW_H__8F3E666D_3B66_11D2_92F7_00104B498E9D__INCLUDED_

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000

/////////////////////////////////////////////////////////////////////////////
// CMovieApp:
// See MovieWinBackMFC.cpp for the implementation of this class
//

// This application uses a Multimedia stream to render
// a video file to a DirectDrawEx surface contained in 
// a window. It implements a primary DirectDraw surface 
// and an offscreen DirectDraw surface to optimize individual 
// frame blits. It also attaches a DirectDraw clipper to the 
// window to process window overlapping.


//To compile this program you must have DXMedia SDK 5.1 installed 
//and you will need set your include path under tools/options/directories/include
//to c:\DXMedia\include and your library path to c:\DXMedia\lib
//Also link with the following libraries under project/settings/link...
//amstrmid.lib quartz.lib strmbase.lib ddraw.lib 

#include <ddstream.h>	// DirectDraw multimedia stream interfaces
#include <ddrawex.h>	// DirectDrawEx interfaces

#include <atlbase.h>
extern CComModule _Module;
#include <atlcom.h>

#include <stdio.h>

#define APPLICATIONNAME "Multimedia Stream In Window"
#define CLASSNAME "MMSDDRAWEXWINDOW"

class CMovieView : public CView
{
protected: // create from serialization only
	CMovieView();
	DECLARE_DYNCREATE(CMovieView)

// Attributes
public:
	CMovieDoc* GetDocument();

protected :
	BOOL					m_bAppactive,	// The mmstream is rendering ?
							m_bFileLoaded,  // There is a file loaded ?
							m_bPaused;		// The movie has been paused ?

	WORD					m_video_width, m_video_height;
	TCHAR					m_szFilename[MAX_PATH];
	STREAM_TIME				m_StreamTime;		// Stream time of the movie file	

	//DirectDrawEx interfaces
	IDirectDraw						*m_pDD;
	IDirectDraw3					*m_pDD3;
	IDirectDrawFactory				*m_pDDF;
	IDirectDrawSurface				*m_pPrimarySurface;
	IDirectDrawSurface				*m_pDDSOffscreen;
	IDirectDrawSurface				*m_pDDSOffscreen2;
	IDirectDrawClipper				*m_pDDClipper;

	//MultiMedia streaming interfaces
	IMultiMediaStream				*m_pMMStream;
	IMediaStream					*m_pPrimaryVidStream;    
	IDirectDrawMediaStream			*m_pDDStream;
	IDirectDrawStreamSample			*m_pSample;
	// (can't use CComPtr here because of multiple instanciations : open a video, then another, ...)

// Operations
protected :

	HRESULT InitDDrawEx();
	BOOL GetOpenMovieFile(LPSTR szName);
	HRESULT RenderFileToMMStream(LPCTSTR szFilename);	
	HRESULT InitRenderToSurface();
	void switchPlayPause();
	void DestroyObjects();
	void ExitCode();

public :

	void RenderToSurface(BOOL bSingleBlit=TRUE);


// Implementation
public:
	virtual ~CMovieView();
#ifdef _DEBUG
	virtual void AssertValid() const;
	virtual void Dump(CDumpContext& dc) const;
#endif

protected:

// Generated message map functions
protected:
	//{{AFX_MSG(CMovieView)
		// NOTE - the ClassWizard will add and remove member functions here.
	virtual void OnDraw(CDC* pDC);  // overridden to draw this view
	virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
	BOOL OnEraseBkgnd( CDC* pDC );

	afx_msg void OnFileOpen();
	afx_msg void OnStart();
	afx_msg void OnPause();
	afx_msg void OnStop();
	afx_msg void OnKeyDown( UINT nChar, UINT nRepCnt, UINT nFlags );
	afx_msg void OnLButtonDown( UINT nFlags, CPoint point );
		//    DO NOT EDIT what you see in these blocks of generated code !
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

#ifndef _DEBUG  // debug version in MovieView.cpp
inline CMovieDoc* CMovieView::GetDocument()
   { return (CMovieDoc*)m_pDocument; }
#endif

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Developer Studio will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_MOVIEVIEW_H__8F3E666D_3B66_11D2_92F7_00104B498E9D__INCLUDED_)