日子如流水，视频实现代码

  1
  2
  3//2005-01-21
  4//http://blog.csdn.net/apcsherry/archive/2006/01/04/570202.aspx
  5//使用DirectX技术实现播放，需要引用系统的 C:\WINNT\system32\quartz.dll  
  6//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。 
  7
  8using System;  
  9using System.Collections;  
 10using System.ComponentModel;  
 11using System.Drawing;  
 12using System.Data;  
 13using System.Windows.Forms;  
 14using QuartzTypeLib;  
 15using EnvDTE;
 16namespace HHOA 
 17{  
 18    /**//// 〈summary〉  
 19    /// FrmTV 的摘要说明。  2005-01-21 tommy test
 20    /// 〈/summary〉  
 21    public class FrmTV : System.Windows.Forms.UserControl  
 22    {  
 23        private System.Windows.Forms.ToolBar toolBar1;  
 24        private System.Windows.Forms.ToolBarButton toolBarButton1;  
 25        private System.Windows.Forms.ToolBarButton toolBarButton2;  
 26        private System.Windows.Forms.ToolBarButton toolBarButton3;  
 27        private System.Windows.Forms.Panel panel1;  
 28        private System.Windows.Forms.ImageList imageList1;  
 29        private System.Windows.Forms.Timer timer1;  
 30        private System.Windows.Forms.ToolBarButton toolBarButton4;  
 31        private System.ComponentModel.IContainer components;  
 32
 33        
 34
 35        private const int WM_APP = 0x8000;  
 36        private const int WM_GRAPHNOTIFY = WM_APP + 1;  
 37        private const int EC_COMPLETE = 0x01;  
 38        private const int WS_CHILD = 0x40000000;  
 39        private const int WS_CLIPCHILDREN = 0x2000000;  
 40
 41        private FilgraphManager m_objFilterGraph = null;  
 42        private IBasicAudio m_objBasicAudio = null;  
 43        private IVideoWindow m_objVideoWindow = null;  
 44        private IMediaEvent m_objMediaEvent = null;  
 45        private IMediaEventEx m_objMediaEventEx = null;  
 46        private IMediaPosition m_objMediaPosition = null;  
 47        private IMediaControl m_objMediaControl = null;  
 48        private System.Windows.Forms.StatusBar statusBar1;  
 49        private System.Windows.Forms.StatusBarPanel statusBarPanel1;  
 50        private System.Windows.Forms.StatusBarPanel statusBarPanel2;  
 51        private System.Windows.Forms.StatusBarPanel statusBarPanel3;  
 52
 53        enum MediaStatus { None, Stopped, Paused, Running };  
 54
 55        private MediaStatus m_CurrentStatus = MediaStatus.None;  
 56
 57        public FrmTV()  
 58        {  
 59            // 该调用是 Windows.Forms 窗体设计器所必需的。  
 60            InitializeComponent();  
 61            // TODO: 在 InitializeComponent 调用后添加任何初始化  
 62
 63         }  
 64        public FrmTV(EnvDTE._DTE dte,string workpath)  
 65        {  
 66            InitializeComponent();  
 67            this.mDTE=dte;  
 68            this.mWorkPath=workpath;  
 69            }  
 70        private _DTE mDTE=null;  
 71        public _DTE DTE  
 72        {  
 73            set  
 74            {  
 75                mDTE=value;  
 76            }  
 77
 78            get  
 79            {  
 80                return mDTE;  
 81            }  
 82        }  
 83
 84        //工作目录  
 85        private string mWorkPath=null;  
 86        public string WorkPath  
 87        {  
 88            set  
 89            {  
 90                this.mWorkPath=value;  
 91            }  
 92        }  
 93        /**//// 〈summary〉  
 94        /// 清理所有正在使用的资源。  
 95        /// 〈/summary〉  
 96        protected override void Dispose( bool disposing )  
 97        {  
 98            if( disposing )  
 99            {  
100                if(components != null)  
101                {  
102                    components.Dispose();  
103                }  
104            }  
105            base.Dispose( disposing );
106        }  
107
108        组件设计器生成的代码#region 组件设计器生成的代码  
109        /**//// 〈summary〉  
110        /// 设计器支持所需的方法 - 不要使用代码编辑器  
111        /// 修改此方法的内容。  
112        /// 〈/summary〉  
113        private void InitializeComponent()  
114        {  
115            this.components = new System.ComponentModel.Container();
116            this.toolBar1 = new System.Windows.Forms.ToolBar();
117            this.toolBarButton4 = new System.Windows.Forms.ToolBarButton();
118            this.toolBarButton1 = new System.Windows.Forms.ToolBarButton();
119            this.toolBarButton2 = new System.Windows.Forms.ToolBarButton();
120            this.toolBarButton3 = new System.Windows.Forms.ToolBarButton();
121            this.imageList1 = new System.Windows.Forms.ImageList(this.components);
122            this.panel1 = new System.Windows.Forms.Panel();
123            this.timer1 = new System.Windows.Forms.Timer(this.components);
124            this.statusBar1 = new System.Windows.Forms.StatusBar();
125            this.statusBarPanel1 = new System.Windows.Forms.StatusBarPanel();
126            this.statusBarPanel2 = new System.Windows.Forms.StatusBarPanel();
127            this.statusBarPanel3 = new System.Windows.Forms.StatusBarPanel();
128            ((System.ComponentModel.ISupportInitialize)(this.statusBarPanel1)).BeginInit();
129            ((System.ComponentModel.ISupportInitialize)(this.statusBarPanel2)).BeginInit();
130            ((System.ComponentModel.ISupportInitialize)(this.statusBarPanel3)).BeginInit();
131            this.SuspendLayout();
132            // 
133            // toolBar1
134            // 
135            this.toolBar1.Appearance = System.Windows.Forms.ToolBarAppearance.Flat;
136            this.toolBar1.Buttons.AddRange(new System.Windows.Forms.ToolBarButton[] {
137                                                                                        this.toolBarButton4,
138                                                                                        this.toolBarButton1,
139                                                                                        this.toolBarButton2,
140                                                                                        this.toolBarButton3});
141            this.toolBar1.ButtonSize = new System.Drawing.Size(37, 28);
142            this.toolBar1.DropDownArrows = true;
143            this.toolBar1.ImageList = this.imageList1;
144            this.toolBar1.Location = new System.Drawing.Point(0, 0);
145            this.toolBar1.Name = "toolBar1";
146            this.toolBar1.ShowToolTips = true;
147            this.toolBar1.Size = new System.Drawing.Size(288, 41);
148            this.toolBar1.TabIndex = 0;
149            this.toolBar1.ButtonClick += new System.Windows.Forms.ToolBarButtonClickEventHandler(this.toolBar1_ButtonClick);
150            // 
151            // toolBarButton4
152            // 
153            this.toolBarButton4.Text = "Open";
154            // 
155            // toolBarButton1
156            // 
157            this.toolBarButton1.Enabled = false;
158            this.toolBarButton1.Text = "Play";
159            // 
160            // toolBarButton2
161            // 
162            this.toolBarButton2.Enabled = false;
163            this.toolBarButton2.Text = "Pause";
164            // 
165            // toolBarButton3
166            // 
167            this.toolBarButton3.Enabled = false;
168            this.toolBarButton3.Text = "Stop";
169            // 
170            // imageList1
171            // 
172            this.imageList1.ColorDepth = System.Windows.Forms.ColorDepth.Depth24Bit;
173            this.imageList1.ImageSize = new System.Drawing.Size(16, 16);
174            this.imageList1.TransparentColor = System.Drawing.Color.Red;
175            // 
176            // panel1
177            // 
178            this.panel1.BackColor = System.Drawing.Color.Gainsboro;
179            this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
180            this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
181            this.panel1.Location = new System.Drawing.Point(0, 41);
182            this.panel1.Name = "panel1";
183            this.panel1.Size = new System.Drawing.Size(288, 239);
184            this.panel1.TabIndex = 4;
185            // 
186            // timer1
187            // 
188            this.timer1.Enabled = true;
189            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
190            // 
191            // statusBar1
192            // 
193            this.statusBar1.Location = new System.Drawing.Point(0, 260);
194            this.statusBar1.Name = "statusBar1";
195            this.statusBar1.Panels.AddRange(new System.Windows.Forms.StatusBarPanel[] {
196                                                                                          this.statusBarPanel1,
197                                                                                          this.statusBarPanel2,
198                                                                                          this.statusBarPanel3});
199            this.statusBar1.ShowPanels = true;
200            this.statusBar1.Size = new System.Drawing.Size(288, 20);
201            this.statusBar1.TabIndex = 5;
202            // 
203            // statusBarPanel1
204            // 
205            this.statusBarPanel1.AutoSize = System.Windows.Forms.StatusBarPanelAutoSize.Spring;
206            this.statusBarPanel1.BorderStyle = System.Windows.Forms.StatusBarPanelBorderStyle.None;
207            this.statusBarPanel1.Text = "准备";
208            this.statusBarPanel1.Width = 144;
209            // 
210            // statusBarPanel2
211            // 
212            this.statusBarPanel2.Alignment = System.Windows.Forms.HorizontalAlignment.Center;
213            this.statusBarPanel2.AutoSize = System.Windows.Forms.StatusBarPanelAutoSize.Contents;
214            this.statusBarPanel2.Text = "00:00:00";
215            this.statusBarPanel2.Width = 64;
216            // 
217            // statusBarPanel3
218            // 
219            this.statusBarPanel3.Alignment = System.Windows.Forms.HorizontalAlignment.Center;
220            this.statusBarPanel3.AutoSize = System.Windows.Forms.StatusBarPanelAutoSize.Contents;
221            this.statusBarPanel3.Text = "00:00:00";
222            this.statusBarPanel3.Width = 64;
223            // 
224            // FrmTV
225            // 
226            this.BackColor = System.Drawing.SystemColors.Control;
227            this.Controls.Add(this.statusBar1);
228            this.Controls.Add(this.panel1);
229            this.Controls.Add(this.toolBar1);
230            this.Name = "FrmTV";
231            this.Size = new System.Drawing.Size(288, 280);
232            this.SizeChanged += new System.EventHandler(this.FrmTV_SizeChanged);
233            ((System.ComponentModel.ISupportInitialize)(this.statusBarPanel1)).EndInit();
234            ((System.ComponentModel.ISupportInitialize)(this.statusBarPanel2)).EndInit();
235            ((System.ComponentModel.ISupportInitialize)(this.statusBarPanel3)).EndInit();
236            this.ResumeLayout(false);
237
238        }  
239        #endregion  
240
241        private void CleanUp()  
242        {  
243            if (m_objMediaControl != null)  
244                m_objMediaControl.Stop();  
245
246            m_CurrentStatus = MediaStatus.Stopped;  
247
248            if (m_objMediaEventEx != null)  
249                m_objMediaEventEx.SetNotifyWindow(0, 0, 0);  
250
251            if (m_objVideoWindow != null)  
252            {  
253                
254                m_objVideoWindow.Visible = 0;  
255                m_objVideoWindow.Owner = 0;  
256            }  
257
258            if (m_objMediaControl != null) m_objMediaControl = null; 
259            if (m_objMediaPosition != null) m_objMediaPosition = null; 
260            if (m_objMediaEventEx != null) m_objMediaEventEx = null;  
261            if (m_objMediaEvent != null) m_objMediaEvent = null;  
262            if (m_objVideoWindow != null) m_objVideoWindow = null;  
263            if (m_objBasicAudio != null) m_objBasicAudio = null;  
264            if (m_objFilterGraph != null) m_objFilterGraph = null;  
265        }  
266
267        private void toolBar1_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)  
268        {  
269            switch(toolBar1.Buttons.IndexOf(e.Button))  
270            {  
271                case 0:  
272                {  
273                    打开文件#region 打开文件  
274                    OpenFileDialog openFileDialog = new OpenFileDialog();
275                    openFileDialog.Filter = "Media Files|*.mpg;*.avi;*.wma;*.mov;*.wav;*.mp2;*.mp3|All Files|*.*";  
276                    if (DialogResult.OK == openFileDialog.ShowDialog()) 
277                    {
278                        CleanUp();
279                        m_objFilterGraph = new FilgraphManager();
280                        m_objFilterGraph.RenderFile(openFileDialog.FileName);
281                        m_objBasicAudio = m_objFilterGraph as IBasicAudio; 
282                        try  
283                        {  
284                            m_objVideoWindow = m_objFilterGraph as IVideoWindow; 
285                            m_objVideoWindow.Owner = (int) panel1.Handle;
286                            m_objVideoWindow.WindowStyle = WS_CHILD | WS_CLIPCHILDREN; 
287                            m_objVideoWindow.SetWindowPosition(panel1.ClientRectangle.Left,    
288                                panel1.ClientRectangle.Top, panel1.ClientRectangle.Width,panel1.ClientRectangle.Height);  
289                         }  
290                        catch (Exception)  
291                        { 
292                            m_objVideoWindow = null; 
293                        }  
294                        m_objMediaEvent = m_objFilterGraph as IMediaEvent;  
295                        m_objMediaEventEx = m_objFilterGraph as IMediaEventEx;  
296                        m_objMediaEventEx.SetNotifyWindow((int) this.Handle,WM_GRAPHNOTIFY, 0); 
297                        m_objMediaPosition = m_objFilterGraph as IMediaPosition;
298                        m_objMediaControl = m_objFilterGraph as IMediaControl;  
299                        this.Text = "DirectShow - [" + openFileDialog.FileName + "]"; 
300                        m_objMediaControl.Run(); 
301                        m_CurrentStatus = MediaStatus.Running;
302                    }  
303                    break;  
304                              #endregion  
305
306                          }  
307                case 1:  
308                {  
309                    m_objMediaControl.Run();  
310                    m_CurrentStatus = MediaStatus.Running;
311                    break;  
312                }  
313
314                case 2:  
315                {  
316                    m_objMediaControl.Pause();  
317                    m_CurrentStatus = MediaStatus.Paused; 
318                    break;  
319                }  
320
321                case 3:  
322                {  
323                    m_objMediaControl.Stop();  
324                     m_objMediaPosition.CurrentPosition = 0;  
325                    m_CurrentStatus = MediaStatus.Stopped;  
326                    break; 
327                }  
328            }  
329
330            UpdateStatusBar();  
331            UpdateToolBar();  
332        }  
333
334        private void FrmTV_SizeChanged(object sender, System.EventArgs e)  
335        {  
336            if (m_objVideoWindow != null)  
337            {  
338                m_objVideoWindow.SetWindowPosition(panel1.ClientRectangle.Left,  
339                    panel1.ClientRectangle.Top,  
340                    panel1.ClientRectangle.Width,  
341                    panel1.ClientRectangle.Height);  
342            }  
343        }  
344
345        private void timer1_Tick(object sender, System.EventArgs e)  
346        {  
347
348            if (m_CurrentStatus == MediaStatus.Running)  
349            {  
350                UpdateStatusBar();  
351            }  
352        } 
353        protected override void WndProc( ref Message m)  
354        {  
355            if (m.Msg == WM_GRAPHNOTIFY)  
356            {  
357                int lEventCode;  
358                int lParam1, lParam2;  
359                while (true)  
360                {  
361                    try  
362                    {  
363                        m_objMediaEventEx.GetEvent(out lEventCode,out lParam1,  out lParam2,  0);  
364                        m_objMediaEventEx.FreeEventParams(lEventCode, lParam1, lParam2); 
365                        if (lEventCode == EC_COMPLETE) 
366                        {  
367                            m_objMediaControl.Stop();  
368                            m_objMediaPosition.CurrentPosition = 0;
369                            m_CurrentStatus = MediaStatus.Stopped; 
370                            UpdateStatusBar();  
371                            UpdateToolBar();  
372                        }  
373                    }  
374                    catch (Exception)  
375                    {  
376                        break;  
377                    }  
378                }  
379            }  
380            base.WndProc(ref m); 
381        }  
382
383        
384        private void UpdateStatusBar()  
385        {  
386            switch (m_CurrentStatus) 
387            {  
388                case MediaStatus.None : statusBarPanel1.Text = "停止"; break;  
389                case MediaStatus.Paused : statusBarPanel1.Text = "暂停 "; break;  
390                case MediaStatus.Running: statusBarPanel1.Text = "播放"; break;  
391                case MediaStatus.Stopped: statusBarPanel1.Text = "停止"; break;  
392            }  
393
394            if (m_objMediaPosition != null)  
395            {  
396                int s = (int) m_objMediaPosition.Duration;  
397                int h = s / 3600;  
398                int m = (s - (h * 3600)) / 60;  
399                s = s - (h * 3600 + m * 60);  
400
401                statusBarPanel2.Text = String.Format("{0:D2}:{1:D2}:{2:D2}", h, m, s);  
402
403                s = (int) m_objMediaPosition.CurrentPosition;  
404                h = s / 3600;  
405                m = (s - (h * 3600)) / 60;  
406                s = s - (h * 3600 + m * 60);  
407
408                statusBarPanel3.Text = String.Format("{0:D2}:{1:D2}:{2:D2}", h, m, s);  
409            }  
410            else  
411            {  
412                statusBarPanel2.Text = "00:00:00";  
413                statusBarPanel3.Text = "00:00:00";  
414            }  
415        }  
416
417        private void UpdateToolBar()  
418        {  
419            switch (m_CurrentStatus)  
420            {  
421                case MediaStatus.None : toolBarButton1.Enabled = false;  
422                toolBarButton2.Enabled = false;  
423                toolBarButton3.Enabled = false;  
424                break;  
425
426                case MediaStatus.Paused : toolBarButton1.Enabled = true;  
427                toolBarButton2.Enabled = false;  
428                toolBarButton3.Enabled = true;  
429                break;  
430
431                case MediaStatus.Running: toolBarButton1.Enabled = false;  
432                toolBarButton2.Enabled = true;  
433                toolBarButton3.Enabled = true;  
434                break;  
435
436                case MediaStatus.Stopped: toolBarButton1.Enabled = true;  
437                toolBarButton2.Enabled = false;  
438                toolBarButton3.Enabled = false;  
439                break;  
440            }  
441        }  
442    }  
443}