请教关于AVI视频的显示播放

[yiming07]

CWnd *pWnd=AfxGetMainWnd()->GetDlgItem(IDC_BMPSHOW); // 得到预示窗口指针

CRect rect;
pWnd ->GetWindowRect(&rect); // 得到窗口大小

m_hPlayWnd = MCIWndCreate(pWnd->GetSafeHwnd(), AfxGetInstanceHandle(),WS_CHILD|WS_VISIBLE|MCIWNDF_NOOPEN,strFile);

// MCIWndOpen(m_hPlayWnd, strFile, NULL);
MCIWndPlay(m_hPlayWnd);
我想打开一个AVI文件显示到对话框中，使用了如上代码，但是运行过程中视频没有流利的播放（这个视频是我自己用摄像头录得无压缩的AVI文件），可是我再运行另外一个从网上下的经过XVID编码的电影时可以流畅播放，我想请问一下这是怎么回事？应该怎样改进代码？顺便问一下，如何设置代码能将视频文件的显示铺满整个显示区域？谢谢各位

[dick_china]

没有流利的播放s 是什么意思？有播放了？
有没声音？如果有声音没图像的话可能是视频解码不对

[yiming07]

[Quote=引用 1 楼 dick_china 的回复:]
没有流利的播放s 是什么意思？有播放了？
有没声音？如果有声音没图像的话可能是视频解码不对
[/Quote]
是这样的，我点了打开文件按钮后，显示视频区域变黑，但没有正常播放，然后我点在视频下方出现的那个播放按钮，视频闪了一下，就没了，再点，再闪，如此这般.......我以前遇到视频解码的是，那时是显示没有***解压缩程序啊。挺着急的，请您指点，多谢

[yiming07]

请大家帮忙讨论解答。谢谢

[WizardK]

遇到过类似问题，是因为AVI的压缩格式

m_Video = MCIWndCreate(this->GetSafeHwnd(), AfxGetInstanceHandle(), WS_CHILD | WS_VISIBLE | MCIWNDF_NOMENU | MCIWNDF_NOPLAYBAR, "C:\\AVDemo.avi");
MCIWndPlay(m_Video);

[leechrockgames]

#include"ENmultimedia.h"
bool ENmultimedia::LHxxLOAD_MULTIMEDIA(char *name,char *Tname)
{
	iter=LHxxITERATOR_LIST(Tname,"NO");
	if(iter!=NULL)
	{
		return S_FALSE;
	}
	char ss[100]="";
	ENmultimediaData temp;
	strcpy(temp.Name,Tname);
	temp.WavOb=NULL;
	temp.MultOb=new MultimediaData();
	// DirectShow interfaces
	temp.MultOb->pGB   = NULL;
	temp.MultOb->pMC   = NULL;
	temp.MultOb->pME   = NULL;
	temp.MultOb->pVW   = NULL;
	temp.MultOb->pBA   = NULL;
	temp.MultOb->pBV   = NULL;
	temp.MultOb->pMS   = NULL;
	temp.MultOb->pMP  = NULL;
	temp.MultOb->pFS = NULL;
	temp.MultOb->g_bAudioOnly=FALSE;
	temp.MultOb->g_bFullscreen=FALSE;
	temp.MultOb->g_dwGraphRegister=0;
    temp.MultOb->g_psCurrent=Stopped;
	temp.MultOb->g_lVolume=VOLUME_FULL;
	temp.WavOb=NULL;
	HRESULT hr;
    // If no filename specified by command line, show file open dialog
    if(temp.MultOb->FileName[0]== L'\0')
    {
        TCHAR szFilename[MAX_PATH];
        // If no filename was specified on the command line, then our video
        // window has not been created or made visible.  Make our main window
        // visible and bring to the front to allow file selection.
       //ShowWindow(hWnd, SW_SHOWNORMAL);
        SetForegroundWindow(hWnd);
		strcpy(szFilename,name);
        // This sample does not support playback of ASX playlists.
        // Since this could be confusing to a user, display a warning
        // message if an ASX file was opened.
        if (_tcsstr((_tcslwr(szFilename)), TEXT(".asx")))
        {          
            return false;
        }
        // This sample does not offer support for Windows Media playback.
        // The PlayWndASF and Jukebox samples demonstrate how to add a 
        // Windows Media certificate handler to your app, along with giving
        // example code to load and connect the ASF Reader source filter.
        // To prevent problems with using the older (default) ASF reader here,
        // simply disable loading of ASF,WMA,WMV files.
        if (IsWindowsMediaFile(szFilename))
        {
			_stprintf(ss,"(加载出错<不是所支持的文件类型>)LHxxLOAD_MULTIMEDIA:%s",name);
			MessageBox(hWnd, ss, "error sound", MB_OK);
            return false;
        }
        lstrcpy(temp.MultOb->FileName, szFilename);
    }
	 // Reset status variables
    temp.MultOb->g_psCurrent = Stopped;
    temp.MultOb->g_lVolume = VOLUME_FULL;
	SoundOb.push_back(temp);
	 // Start playing the media file
    hr = PlayMovieInWindow(temp.MultOb->FileName,Tname);
    // If we couldn't play the clip, clean up
    if (FAILED(hr))
	{
        LHxxFREE_MULTIMEDIA(Tname);
	}
	LHxxSTOP_MULTIMEDIA(Tname);
	return true;
}
void ENmultimedia::LHxxPLAY_MULTIMEDIA(char *Tname,int playmode)
{
	iter=LHxxITERATOR_LIST(Tname,"LHxxPLAY_MULTIMEDIA()");
	if(iter==NULL)
	{
		return;
	}
	iter->MultOb->PlayMode=playmode;
	//重新开始播放
	if(iter->MultOb->g_psCurrent == Stopped || iter->MultOb->g_psCurrent==End)
    {
		LHxxRESET_MULTIMEDIA(Tname);
	}
	iter->MultOb->g_psCurrent=Running;
	iter->MultOb->pMC->Run();  
}
void ENmultimedia::LHxxSTOP_MULTIMEDIA(char *Tname)
{
	iter=LHxxITERATOR_LIST(Tname,"LHxxSTOP_MULTIMEDIA()");
	if(iter==NULL)
	{
		return;
	}
	if(iter->MultOb->g_psCurrent==End)
	{
		return;
	}
	iter->MultOb->g_psCurrent=Stopped;
	iter->MultOb->pMC->Stop();
}
void ENmultimedia::LHxxPAUSE_MULTIMEDIA(char *Tname)
{
	iter=LHxxITERATOR_LIST(Tname,"LHxxPAUSE_MULTIMEDIA()");
	if(iter==NULL)
	{
		return;
	}
	if (!iter->MultOb->pMC)
	{
		return;
	}
	//是stop状态时,不处理
	if(iter->MultOb->g_psCurrent==Stopped || iter->MultOb->g_psCurrent==End)
	{
		return;
	}
    // Toggle play/pause behavior
    if((iter->MultOb->g_psCurrent == Paused))//重按暂停时,播放
    {
        if (SUCCEEDED(iter->MultOb->pMC->Run()))
		{
            iter->MultOb->g_psCurrent = Running;
		}
    }
    else
    {
        if (SUCCEEDED(iter->MultOb->pMC->Pause()))
		{
            iter->MultOb->g_psCurrent = Paused;
		}
    }
}
static int percent=0;
void LoadingThread(void *p)
{
	percent=0;
	list<ENmultimediaData>::iterator *iter=(list<ENmultimediaData>::iterator*)(p);
//	(*iter)->MultOb->g_psCurrent=Running;
	(*iter)->MultOb->g_psCurrent=Paused;
	(*iter)->MultOb->pMC->Run();
	(*iter)->MultOb->g_psCurrent=Running;
	percent=100;
	if(percent==100)
	{	
		_endthreadex(NULL);
	}
	cout<<"退出线程1:"<<endl;	
	return;
}

//加载资源
unsigned int __stdcall LoadingThread1(void *p)//加载游戏资源
{	
	percent=0;
	list<ENmultimediaData>::iterator *iter=(list<ENmultimediaData>::iterator*)(p);
//	(*iter)->MultOb->g_psCurrent=Running;
	(*iter)->MultOb->g_psCurrent=Paused;
	(*iter)->MultOb->pMC->Run();
	(*iter)->MultOb->g_psCurrent=Running;
	percent=100;
	if(percent==100)
	{	
		_endthreadex(NULL);
	}
	cout<<"退出线程2:"<<endl;	
	return 0;
}

int ENmultimedia::LHxxSTATE_MULTIMEDIA(char *Tname)//检测是否在播放中
{
	iter=LHxxITERATOR_LIST(Tname,"NO");
	if(iter==NULL)
	{
		return false;
	}
	LHxxHANDLE_GRAPHEVENT(Tname);
	if(iter->MultOb->PlayMode==1)//循环播放
	{
		if(iter->MultOb->g_psCurrent==End)
		{			
			LHxxRESET_MULTIMEDIA(Tname);
			iter->MultOb->g_psCurrent=Running;
			iter->MultOb->pMC->Run(); 			
			/*
			iter->MultOb->g_psCurrent=Paused;
			static unsigned long t=0;
			LHxxRESET_MULTIMEDIA(Tname);
			iter->MultOb->g_psCurrent=Paused;
			_beginthreadex((void*)t,t,&LoadingThread1,(unsigned int *)&iter,(unsigned)t,(unsigned*)t);
			if(percent==100)
			{
				percent=0;
			}
			*/
			/*
			iter->MultOb->g_psCurrent=Paused;
			static unsigned long t=0;
			LHxxRESET_MULTIMEDIA(Tname);
			iter->MultOb->g_psCurrent=Paused;
			_beginthread(&LoadingThread,t,(unsigned int *)&iter);
			if(percent==100)
			{
				percent=0;
			}	
			*/
		}
	}
	//0:stop; 1:pause; 2:playing; 3:ini
//	cout<<"iter->MultOb->g_psCurrent:"<<iter->MultOb->g_psCurrent<<endl;
	return iter->MultOb->g_psCurrent;
}
bool ENmultimedia::LHxxFREE_MULTIMEDIA(char *Tname)
{
	iter=LHxxITERATOR_LIST(Tname,"LHxxFREE_MULTIMEDIA()");
	if(iter==NULL)
	{
		return false;
	}
	LHxxFREE_CLIP(Tname);
	delete iter->MultOb;
	iter->MultOb=NULL;
	SoundOb.erase(iter);
	return true;
}
void ENmultimedia::LHxxRESET_MULTIMEDIA(char *Tname)
{
	iter=LHxxITERATOR_LIST(Tname,"LHxxRESET_MULTIMEDIA()");
	if(iter==NULL)
	{
		return;
	}
	LONGLONG pos=0;
   // Run the graph to play the media file
   iter->MultOb->pMS->SetPositions(&pos, AM_SEEKING_AbsolutePositioning ,NULL, AM_SEEKING_NoPositioning);
}