使用.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;

}

}

}

}

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