使用.NET实现视频播放

原创
biyusr216 2025-01-08 16:29:06 ©著作权
文章标签 .net 音视频单片机 System Windows 文章分类 Python 后端开发
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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); 
  = "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); 
  = "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); 
  = "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); 
  = "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.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.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; 
 } 
 }  } 
 }