[RTSP]WPF用VLC显示RTSP视频

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title: ‘[RTSP]WPF用VLC显示RTSP视频’
date: 2017-11-30 22:48:38
tags:

WPF用VLC显示RTSP视频

场景

• vlc是一个开源的解码库，有很多的版本当然也有WPF的版本，但是WPF其实是WinForm的基础上实现的。所有控件不自己处理的话，一直处于顶层。但它可以自带解码和显示的功能

操作

• 下载对VLC播放器，找到安装目录把libvlc.dll，libvlccore.dll，和plugins文件夹拿出来，插件看自己的需要，用多少加多少。一般方便管理我们都会在工程目录下新建一个文件夹如libvlc_x64，32位的可以x86。
• 之后我们引用这些dll
  

2. 我们在xaml中添加VlcControl，代码如下

<Window x:Class="TestVideo.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:TestVideo"
        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">PlayButton>
        <Button Grid.Row="2" Click="OnForwardButtonClick" x:Name="Forward">ForwardButton>
        <Button Grid.Row="3" Click="GetLength_Click" x:Name="GetLength">Get LengthButton>
        <Button Grid.Row="4" Click="GetCurrentTime_Click" x:Name="GetCurrentTime">Get Current TimeButton>
        <Button Grid.Row="5" Click="SetCurrentTime_Click" x:Name="SetCurrentTime">Set Current Time to 5sButton>
    Grid>
Window>

3. 在播放前要指定引用插件和库所在的路径，我们在load里面，自己的工程不要写在这，会影响性成的。

  // Use 64 bits library
            this.myControl.MediaPlayer.VlcLibDirectory = new DirectoryInfo(System.IO.Path.Combine(Environment.CurrentDirectory, "libvlc_x64"));
            var options = new string[]
{
 // VLC options can be given here. Please refer to the VLC command line documentation.
};
            this.myControl.MediaPlayer.VlcMediaplayerOptions = options;

            // Load libvlc libraries and initializes stuff. It is important that the options (if you want to pass any) and lib directory are given before calling this method.
            this.myControl.MediaPlayer.EndInit();

4. 我们可以做的操作就很多了。如下

        private void OnPlayButtonClick(object sender, RoutedEventArgs e)
        {
              myControl.MediaPlayer.Play(new Uri("rtsp://184.72.239.149/vod/mp4://BigBuckBunny_175k.mov"));
         //本地视频写写本地路径
        }

        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";
        }

5. 效果如下
   

提示

• 就是视频的黑框，所以大小自己要处理好
• wpf控件其实是winform来实现的
• vlc解码前面会有一段预加载，
  源码

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所有的东西都有自己的优点和缺点，不要拿短来比长。做界面做样式只是一个模块，要有整体把握，不然软件或者网站都是问题，代码维护也是问题。