WPF播放器

最近由于工作需要，需要做一个播放软件，在网上参考了很多例子，园子里有很多代码。其中最多的就是wpf自带的MediaElement控件，或者VLC视频播放器。

先附我自己查询资料的链接：

MediaEmelent控件例子

http://www.cnblogs.com/gnielee/archive/2010/05/06/wpf4-media-player-mediaelement.html

http://blog.zhigui.org/2011/04/wpf-simple-player/

VLC

http://www.cnblogs.com/Gavin001/archive/2013/05/01/3053465.html

由于我电脑可能是Ghost系统或者由于被优化了。我发现我的MediaElement无法播放任何视频。通过控制面板关闭媒体中心之后，再也打不开了。真是坑！！！

只能放弃自带控件，查到有一个VLC的NET版。so。。。

附vlc.dotnet的github链接

https://github.com/ZeBobo5/Vlc.DotNet

首先，自己在nuget里面下载所需要的扩展：

完成之后就看示例代码咯，github里面是有example的

<Window x:Class="Vlc.DotNet.Wpf.Samples.MainWindow"
        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"
        xmlns:local="clr-namespace:Vlc.DotNet.Wpf.Samples"
        xmlns:wpf="clr-namespace:Vlc.DotNet.Wpf;assembly=Vlc.DotNet.Wpf"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>

        <wpf:VlcControl Grid.Row="0" x:Name="myControl"/>

        <Button Grid.Row="1" Click="OnPlayButtonClick">Play</Button>
        <Button Grid.Row="2" Click="OnForwardButtonClick" x:Name="Forward">Forward</Button>
        <Button Grid.Row="3" Click="GetLength_Click" x:Name="GetLength">Get Length</Button>
        <Button Grid.Row="4" Click="GetCurrentTime_Click" x:Name="GetCurrentTime">Get Current Time</Button>
        <Button Grid.Row="5" Click="SetCurrentTime_Click" x:Name="SetCurrentTime">Set Current Time to 5s</Button>
    </Grid>
</Window>

首先加上 xmlns:wpf="clr-namespace:Vlc.DotNet.Wpf;assembly=Vlc.DotNet.Wpf"

然后加上 <wpf:VlcControl Grid.Row="0" x:Name="myControl"/>

using System;
using System.IO;
using System.Reflection;
using System.Windows;

namespace Vlc.DotNet.Wpf.Samples
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            myControl.MediaPlayer.VlcLibDirectoryNeeded += OnVlcControlNeedsLibDirectory;
        }

        private void OnVlcControlNeedsLibDirectory(object sender, Forms.VlcLibDirectoryNeededEventArgs e)
        {
            var currentAssembly = Assembly.GetEntryAssembly();
            var currentDirectory = new FileInfo(currentAssembly.Location).DirectoryName;
            if (currentDirectory == null)
                return;
            if (AssemblyName.GetAssemblyName(currentAssembly.Location).ProcessorArchitecture == ProcessorArchitecture.X86)
　　　　　　　　　　　　//vlc的dll路径，自己下载vlc播放器里面的libvlc.dll libvlccore.dll以及plugins文件夹
                e.VlcLibDirectory = new DirectoryInfo(Path.Combine(currentDirectory, @"..\..\..\lib\x86\"));
            else
                e.VlcLibDirectory = new DirectoryInfo(Path.Combine(currentDirectory, @"..\..\..\lib\x64\"));
        }

        private void OnPlayButtonClick(object sender, RoutedEventArgs e)
        {
            myControl.MediaPlayer.Play(new Uri("http://download.blender.org/peach/bigbuckbunny_movies/big_buck_bunny_480p_surround-fix.avi"));
            //myControl.MediaPlayer.Play(new FileInfo(@"..\..\..\Vlc.DotNet\Samples\Videos\BBB trailer.mov"));
        }

        private void OnForwardButtonClick(object sender, RoutedEventArgs e)
        {
            myControl.MediaPlayer.Rate = 2;
        }

        private void GetLength_Click(object sender, RoutedEventArgs e)
        {
            GetLength.Content = myControl.MediaPlayer.Length + " ms";
        }

        private void GetCurrentTime_Click(object sender, RoutedEventArgs e)
        {
            GetCurrentTime.Content = myControl.MediaPlayer.Time + " ms";
        }

        private void SetCurrentTime_Click(object sender, RoutedEventArgs e)
        {
            myControl.MediaPlayer.Time = 5000;
            SetCurrentTime.Content = myControl.MediaPlayer.Time + " ms";
        }
    }
}