C#.NET2005实现一个流媒体播放器

C#.NET2005实现一个流媒体播放器

2007-04-05 16:38

用C#.NET2005实现一个流媒体播放器，感觉还是不错的，就是调用了Windows 中的一个动态连接库——Quarz.dll。我写的是一个DirectShow多媒体播放器。支持目前为止的大部分格式。代码共享一下：

using System;

using System.Collections.Generic;

using ponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using QuartzTypeLib;//这个就是Quarz.dll转换后的Dll文件

namespace myMedia

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

// private ponentModel.IContainer components;

private const int WM_APP = 0x8000;

private const int WM_GRAPHNOTIEY = 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;

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

private MadiaStatus m_CurrentStatus = MadiaStatus.None;

private void CleanUp()

{

if (m_objMediaControl != null)

{

m_objMediaControl.Stop();

}

m_CurrentStatus = MadiaStatus.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_objBasicAudio != null) m_objBasicAudio = null; if (m_objFilterGraph != null) m_objFilterGraph = null; }

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

OpenFileDialog openFileDialog = new OpenFileDialog(); openFileDialog.Filter = "Media

Files|*.mpg;*.avi;*.wma;*.mov;*.mav;*.mp2;*.mp3;*.rm;*.rmvb|All

Files|*.*";

if (DialogResult.OK == openFileDialog.ShowDialog())

{

CleanUp();

m_objFilterGraph = new FilgraphManager();

m_objFilterGraph.RenderFile(openFileDialog.FileNa me);

try

{

m_objBasicAudio = m_objFilterGraph as IBasicAudio;

m_objVideoWindow = m_objFilterGraph as IVideoWindow;

m_objVideoWindow.Owner = (int)panel1.Handle; m_objVideoWindow.WindowStyle = WS_CHILD |

WS_CLIPCHILDREN;

m_objVideoWindow.SetWindowPosition(panel1.Cli entRectangle.Left, panel1.ClientRectangle.Top,

panel1.ClientRectangle.Width, panel1.ClientRectangle.Height);

}

catch (Exception ex)