使用c#.NET实现视频播放

使用DirectX技术实现播放，需要引用系统的 C:/WINNT/system32/quartz.dll
是从CodeProject上看来的。前一阵看到有人需要这样的代码，所以贴出来共享一下。

using System;；
using System.Collections;；
using System.ComponentModel;；
using System.Drawing;；
using System.Data;；
using System.Windows.Forms;；
using QuartzTypeLib;；

namespace Greystar.FrameWork.ToolKits
{
/// 〈summary〉
/// FrmTV 的摘要说明。
/// 〈/summary〉
public class FrmTV : System.Windows.Forms.UserControl
{
private System.Windows.Forms.ToolBar toolBar1;；
private System.Windows.Forms.ToolBarButton toolBarButton1;；
private System.Windows.Forms.ToolBarButton toolBarButton2;；
private System.Windows.Forms.ToolBarButton toolBarButton3;；
private System.Windows.Forms.Panel panel1;；
private System.Windows.Forms.ImageList imageList1;；
private System.Windows.Forms.Timer timer1;；
private System.Windows.Forms.ToolBarButton toolBarButton4;；
private System.ComponentModel.IContainer components;；

private const int WM_APP = 0x8000;；
private const int WM_GRAPHNOTIFY = WM_APP + 1;；
private const int EC_COMPLETE = 0x01;；
private const int WS_CHILD = 0x40000000;；
private const int WS_CLIPCHILDREN = 0x2000000;；

private FilgraphManager m_objFilterGraph = null;；
private IBasicAudio m_objBasicAudio = null;；
private IVideoWindow m_objVideoWindow = null;；
private IMediaEvent m_objMediaEvent = null;；
private IMediaEventEx m_objMediaEventEx = null;；
private IMediaPosition m_objMediaPosition = null;；
private IMediaControl m_objMediaControl = null;；
private System.Windows.Forms.StatusBar statusBar1;；
private System.Windows.Forms.StatusBarPanel statusBarPanel1;；
private System.Windows.Forms.StatusBarPanel statusBarPanel2;；
private System.Windows.Forms.StatusBarPanel statusBarPanel3;；

enum MediaStatus { None, Stopped, Paused, Running };；

private MediaStatus m_CurrentStatus = MediaStatus.None;；

public FrmTV()
{
// 该调用是 Windows.Forms 窗体设计器所必需的。
InitializeComponent();；

// TODO: 在 InitializeComponent 调用后添加任何初始化

}
public FrmTV(EnvDTE._DTE dte,string workpath)
{
InitializeComponent();；
this.mDTE=dte;；
this.mWorkPath=workpath;；
}
private _DTE mDTE=null;；
public _DTE DTE
{
set
{
mDTE=value;；
}

get
{
return mDTE;；
}
}

//工作目录
private string mWorkPath=null;；
public string WorkPath
{
set
{
this.mWorkPath=value;；
}
}
/// 〈summary〉
/// 清理所有正在使用的资源。
/// 〈/summary〉
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();；
}
}
base.Dispose( disposing );；
}

#region 组件设计器生成的代码
/// 〈summary〉
/// 设计器支持所需的方法 - 不要使用代码编辑器
/// 修改此方法的内容。
/// 〈/summary〉
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();；
System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(FrmTV));；
this.toolBar1 = new System.Windows.Forms.ToolBar();；
this.toolBarButton4 = new System.Windows.Forms.ToolBarButton();；
this.toolBarButton1 = new System.Windows.Forms.ToolBarButton();；
this.toolBarButton2 = new System.Windows.Forms.ToolBarButton();；
this.toolBarButton3 = new System.Windows.Forms.ToolBarButton();；
this.imageList1 = new System.Windows.Forms.ImageList(this.components);；
this.panel1 = new System.Windows.Forms.Panel();；
this.timer1 = new System.Windows.Forms.Timer(this.components);；
this.statusBar1 = new System.Windows.Forms.StatusBar();；
this.statusBarPanel1 = new System.Windows.Forms.StatusBarPanel();；
this.statusBarPanel2 = new System.Windows.Forms.StatusBarPanel();；
this.statusBarPanel3 = new System.Windows.Forms.StatusBarPanel();；
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel1)).BeginInit();；
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel2)).BeginInit();；
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel3)).BeginInit();；
this.SuspendLayout();；
//
// toolBar1
//
this.toolBar1.Appearance = System.Windows.Forms.ToolBarAppearance.Flat;；
this.toolBar1.Buttons.AddRange(new System.Windows.Forms.ToolBarButton[] {
this.toolBarButton4,
this.toolBarButton1,
this.toolBarButton2,
this.toolBarButton3});；
this.toolBar1.DropDownArrows = true;；
this.toolBar1.ImageList = this.imageList1;；
this.toolBar1.Location = new System.Drawing.Point(0, 0);；
this.toolBar1.Name = "toolBar1";；
this.toolBar1.ShowToolTips = true;；
this.toolBar1.Size = new System.Drawing.Size(288, 28);；
this.toolBar1.TabIndex = 0;；
this.toolBar1.ButtonClick += new System.Windows.Forms.ToolBarButtonClickEventHandler(this.toolBar1_ButtonClick);；
//
// toolBarButton4
//
this.toolBarButton4.ImageIndex = 3;；
//
// toolBarButton1
//
this.toolBarButton1.Enabled = false;；
this.toolBarButton1.ImageIndex = 0;；
//
// toolBarButton2
//
this.toolBarButton2.Enabled = false;；
this.toolBarButton2.ImageIndex = 1;；
//
// toolBarButton3
//
this.toolBarButton3.Enabled = false;；
this.toolBarButton3.ImageIndex = 2;；
//
// imageList1
//
this.imageList1.ColorDepth = System.Windows.Forms.ColorDepth.Depth24Bit;；
this.imageList1.ImageSize = new System.Drawing.Size(16, 16);；
this.imageList1.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList1.ImageStream")));；
this.imageList1.TransparentColor = System.Drawing.Color.Red;；
//
// panel1
//
this.panel1.BackColor = System.Drawing.Color.Black;；
this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;；
this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;；
this.panel1.Location = new System.Drawing.Point(0, 28);；
this.panel1.Name = "panel1";；
this.panel1.Size = new System.Drawing.Size(288, 252);；
this.panel1.TabIndex = 4;；
//
// timer1
//
this.timer1.Enabled = true;；
this.timer1.Tick += new System.EventHandler(this.timer1_Tick);；
//
// statusBar1
//
this.statusBar1.Location = new System.Drawing.Point(0, 260);；
this.statusBar1.Name = "statusBar1";；
this.statusBar1.Panels.AddRange(new System.Windows.Forms.StatusBarPanel[] {
this.statusBarPanel1,
this.statusBarPanel2,
this.statusBarPanel3});；
this.statusBar1.ShowPanels = true;；
this.statusBar1.Size = new System.Drawing.Size(288, 20);；
this.statusBar1.TabIndex = 5;；
//
// statusBarPanel1
//
this.statusBarPanel1.AutoSize = System.Windows.Forms.StatusBarPanelAutoSize.Spring;；
this.statusBarPanel1.BorderStyle = System.Windows.Forms.StatusBarPanelBorderStyle.None;；
this.statusBarPanel1.Text = "准备";；
this.statusBarPanel1.Width = 144;；
//
// statusBarPanel2
//
this.statusBarPanel2.Alignment = System.Windows.Forms.HorizontalAlignment.Center;；
this.statusBarPanel2.AutoSize = System.Windows.Forms.StatusBarPanelAutoSize.Contents;；
this.statusBarPanel2.Text = "00:00:00";；
this.statusBarPanel2.Width = 64;；
//
// statusBarPanel3
//
this.statusBarPanel3.Alignment = System.Windows.Forms.HorizontalAlignment.Center;；
this.statusBarPanel3.AutoSize = System.Windows.Forms.StatusBarPanelAutoSize.Contents;；
this.statusBarPanel3.Text = "00:00:00";；
this.statusBarPanel3.Width = 64;；
//
// FrmTV
//
this.BackColor = System.Drawing.SystemColors.Control;；
this.Controls.Add(this.statusBar1);；
this.Controls.Add(this.panel1);；
this.Controls.Add(this.toolBar1);；
this.Name = "FrmTV";；
this.Size = new System.Drawing.Size(288, 280);；
this.SizeChanged += new System.EventHandler(this.FrmTV_SizeChanged);；
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel1)).EndInit();；
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel2)).EndInit();；
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel3)).EndInit();；
this.ResumeLayout(false);；

}
#endregion

private void CleanUp()
{
if (m_objMediaControl != null)
m_objMediaControl.Stop();；

m_CurrentStatus = MediaStatus.Stopped;；

if (m_objMediaEventEx != null)
m_objMediaEventEx.SetNotifyWindow(0, 0, 0);；

if (m_objVideoWindow != null)
{
m_objVideoWindow.Visible = 0;；
m_objVideoWindow.Owner = 0;；
}

if (m_objMediaControl != null) m_objMediaControl = null;；
if (m_objMediaPosition != null) m_objMediaPosition = null;；
if (m_objMediaEventEx != null) m_objMediaEventEx = null;；
if (m_objMediaEvent != null) m_objMediaEvent = null;；
if (m_objVideoWindow != null) m_objVideoWindow = null;；
if (m_objBasicAudio != null) m_objBasicAudio = null;；
if (m_objFilterGraph != null) m_objFilterGraph = null;；
}

private void toolBar1_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)
{
switch(toolBar1.Buttons.IndexOf(e.Button))
{
case 0:
{
#region 打开文件
OpenFileDialog openFileDialog = new OpenFileDialog();；
openFileDialog.Filter = "Media Files|*.mpg;；*.avi;；*.wma;；*.mov;；*.wav;；*.mp2;；*.mp3|All Files|*.*";；

if (DialogResult.OK == openFileDialog.ShowDialog())
{
CleanUp();；

m_objFilterGraph = new FilgraphManager();；
m_objFilterGraph.RenderFile(openFileDialog.FileName);；

m_objBasicAudio = m_objFilterGraph as IBasicAudio;；

try
{
m_objVideoWindow = m_objFilterGraph as IVideoWindow;；
m_objVideoWindow.Owner = (int) panel1.Handle;；
m_objVideoWindow.WindowStyle = WS_CHILD | WS_CLIPCHILDREN;；
m_objVideoWindow.SetWindowPosition(panel1.ClientRectangle.Left,
panel1.ClientRectangle.Top,
panel1.ClientRectangle.Width,
panel1.ClientRectangle.Height);；
}
catch (Exception)
{
m_objVideoWindow = null;；
}

m_objMediaEvent = m_objFilterGraph as IMediaEvent;；

m_objMediaEventEx = m_objFilterGraph as IMediaEventEx;；
m_objMediaEventEx.SetNotifyWindow((int) this.Handle,WM_GRAPHNOTIFY, 0);；

m_objMediaPosition = m_objFilterGraph as IMediaPosition;；

m_objMediaControl = m_objFilterGraph as IMediaControl;；

this.Text = "DirectShow - [" + openFileDialog.FileName + "]";；

m_objMediaControl.Run();；
m_CurrentStatus = MediaStatus.Running;；

}
break;；
#endregion

}
case 1:
{
m_objMediaControl.Run();；
m_CurrentStatus = MediaStatus.Running;；
break;；
}

case 2:
{
m_objMediaControl.Pause();；
m_CurrentStatus = MediaStatus.Paused;；
break;；
}

case 3:
{
m_objMediaControl.Stop();；
m_objMediaPosition.CurrentPosition = 0;；
m_CurrentStatus = MediaStatus.Stopped;；
break;；
}
}

UpdateStatusBar();；
UpdateToolBar();；
}

private void FrmTV_SizeChanged(object sender, System.EventArgs e)
{
if (m_objVideoWindow != null)
{
m_objVideoWindow.SetWindowPosition(panel1.ClientRectangle.Left,
panel1.ClientRectangle.Top,
panel1.ClientRectangle.Width,
panel1.ClientRectangle.Height);；
}
}

private void timer1_Tick(object sender, System.EventArgs e)
{

if (m_CurrentStatus == MediaStatus.Running)
{
UpdateStatusBar();；
}
}
protected override void WndProc( ref Message m)
{
if (m.Msg == WM_GRAPHNOTIFY)
{
int lEventCode;；
int lParam1, lParam2;；

while (true)
{
try
{
m_objMediaEventEx.GetEvent(out lEventCode,
out lParam1,
out lParam2,
0);；

m_objMediaEventEx.FreeEventParams(lEventCode, lParam1, lParam2);；

if (lEventCode == EC_COMPLETE)
{
m_objMediaControl.Stop();；
m_objMediaPosition.CurrentPosition = 0;；
m_CurrentStatus = MediaStatus.Stopped;；
UpdateStatusBar();；
UpdateToolBar();；
}
}
catch (Exception)
{
break;；
}
}
}

base.WndProc(ref m);；
}

private void UpdateStatusBar()
{
switch (m_CurrentStatus)
{
case MediaStatus.None : statusBarPanel1.Text = "停止";； break;；
case MediaStatus.Paused : statusBarPanel1.Text = "暂停 ";； break;；
case MediaStatus.Running: statusBarPanel1.Text = "播放";； break;；
case MediaStatus.Stopped: statusBarPanel1.Text = "停止";； break;；
}

if (m_objMediaPosition != null)
{
int s = (int) m_objMediaPosition.Duration;；
int h = s / 3600;；
int m = (s - (h * 3600)) / 60;；
s = s - (h * 3600 + m * 60);；

statusBarPanel2.Text = String.Format("{0:D2}:{1:D2}:{2:D2}", h, m, s);；

s = (int) m_objMediaPosition.CurrentPosition;；
h = s / 3600;；
m = (s - (h * 3600)) / 60;；
s = s - (h * 3600 + m * 60);；

statusBarPanel3.Text = String.Format("{0:D2}:{1:D2}:{2:D2}", h, m, s);；
}
else
{
statusBarPanel2.Text = "00:00:00";；
statusBarPanel3.Text = "00:00:00";；
}
}

private void UpdateToolBar()
{
switch (m_CurrentStatus)
{
case MediaStatus.None : toolBarButton1.Enabled = false;；
toolBarButton2.Enabled = false;；
toolBarButton3.Enabled = false;；
break;；

case MediaStatus.Paused : toolBarButton1.Enabled = true;；
toolBarButton2.Enabled = false;；
toolBarButton3.Enabled = true;；
break;；

case MediaStatus.Running: toolBarButton1.Enabled = false;；
toolBarButton2.Enabled = true;；
toolBarButton3.Enabled = true;；
break;；

case MediaStatus.Stopped: toolBarButton1.Enabled = true;；
toolBarButton2.Enabled = false;；
toolBarButton3.Enabled = false;；
break;；
}
}

}
}