C#使用DirectShow实现简单的视频播放

1、C#添加DirectShow库

添加引用，选择“浏览”，添加Windows/System32/quartz.dll，引用中自动增加QuartzTypeLib。

2、代码如下：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

//

using QuartzTypeLib;//引用DirectShow类库

namespace DirectShow

{

public partial class FormMain : Form

{

//窗体样式

public const int WS_BORDER = 0x00800000;

public const int WS_CAPTION = 0x00C00000;

public const int WS_CHILD = 0x40000000;

//

QuartzTypeLib.FilgraphManager m_FilterManager;//管理器

QuartzTypeLib.IVideoWindow m_VideoWindow;//视频窗体

QuartzTypeLib.IMediaEvent m_MediaEvent;//媒体事件

QuartzTypeLib.IMediaEventEx m_MediaEventEx;//媒体事件扩展

QuartzTypeLib.IMediaPosition m_MediaPos;//媒体当前位置

QuartzTypeLib.IMediaControl m_MediaCtrl;//媒体控制器

public FormMain()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

m_FilterManager = new QuartzTypeLib.FilgraphManager();//

m_FilterManager.RenderFile("f:/768x576.avi");//设置待播放文件

m_VideoWindow = m_FilterManager as QuartzTypeLib.IVideoWindow;//设置播放窗体

m_VideoWindow.Owner = (int)(this.panelMain.Handle);

m_VideoWindow.WindowStyle &= ~WS_BORDER;

m_VideoWindow.SetWindowPosition(0, 0, panelMain.Width,panelMain.Height);

//

m_MediaEvent = m_FilterManager as QuartzTypeLib.IMediaEvent;//设置媒体事件

m_MediaEventEx = m_FilterManager as QuartzTypeLib.IMediaEventEx;//设置媒体事件扩展

m_MediaPos = m_FilterManager as QuartzTypeLib.IMediaPosition;//设置媒体位置

m_MediaCtrl = m_FilterManager as QuartzTypeLib.IMediaControl;//设置媒体控制器

}

private void btnOpen_Click(object sender, EventArgs e)

{

m_MediaCtrl.Run();

}

private void btnStop_Click(object sender, EventArgs e)

{

m_MediaCtrl.Stop();

}

}

}