silverlight是否支持通过彩信进行流式传输？

Question

我正在使用Windows Server 2008 R2和Windows Media Service。在客户端，我想使用Silverlight播放媒体文件。我正在使用VSTS 2008 + Silverlight 3 + ASP.Net + .Net 3.5。我想知道Silverlight是否支持从Windows Media Service播放MMS流文件？如果是，我可以进行快速测试的任何代码示例？

Answer 1

Silverlight中的MediaElement支持通过mms进行流式传输。你应该看看Silverlight的MSDN audio and video overview。

这里是一个非常基本的Silverlight应用程序，它可以控制的MediaElement并且示出了媒体状态/缓冲状态：

XAML

<UserControl x:Class="StreamingTest.MainPage" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
    mc:Ignorable="d" d:DesignWidth="640" d:DesignHeight="480"> 
    <Grid x:Name="LayoutRoot"> 
     <StackPanel Orientation="Vertical"> 
      <MediaElement x:Name="MediaElement" Width="640" Height="480" Source="mms://danarec:8080"/> 
      <StackPanel Orientation="Horizontal" HorizontalAlignment="Center"> 
       <TextBlock x:Name="Status" Margin="0,5"/> 
       <TextBlock x:Name="Buffer" Margin="10,5"/> 
      </StackPanel> 
      <StackPanel Orientation="Horizontal" HorizontalAlignment="Center"> 
       <Button x:Name="Play" Content="Play" Click="Play_Click"/> 
       <Button x:Name="Pause" Content="Pause" Click="Pause_Click"/> 
       <Button x:Name="Stop" Content="Stop" Click="Stop_Click"/> 
      </StackPanel> 
     </StackPanel> 
    </Grid> 
</UserControl> 

C＃

public partial class MainPage : UserControl 
{ 
    public MainPage() 
    { 
     InitializeComponent(); 

     this.MediaElement.CurrentStateChanged += (sender, e) => 
     { 
      this.Status.Text = this.MediaElement.CurrentState.ToString(); 
      this.Buffer.Visibility = this.MediaElement.CurrentState == MediaElementState.Buffering ? Visibility.Visible : Visibility.Collapsed; 
     }; 

     this.MediaElement.BufferingProgressChanged += (sender, e) => 
     { 
      this.Buffer.Text = string.Format("{0:0.0} %", this.MediaElement.BufferingProgress * 100); 
     }; 
    } 

    private void Play_Click(object sender, RoutedEventArgs e) 
    { 
     this.MediaElement.Play(); 
    } 

    private void Pause_Click(object sender, RoutedEventArgs e) 
    { 
     this.MediaElement.Pause(); 
    } 

    private void Stop_Click(object sender, RoutedEventArgs e) 
    { 
     this.MediaElement.Stop(); 
    } 
}