【LibVLCSharp、WPF】播放udp视频流

一、在VLC中开启推送UDP流

 

 

 

 

2022-04-28补充：这里可能与激活转码无关， 注意看一下任务栏图标，是不是打开了多个vlc media player

 

 

 

 

 

 

 

 

 

 

 

 

再打开一个VLC测试一下：

 

 

 

 

 

 

注意：测试可以正常接收到UDP流之后要把上面这步打开的VLC关闭或停止播放，否则在下面的代码中无法播放（原因暂时没搞清楚，被坑了好久）

XAML

<Window x:Class="Test.Vlc.Udp.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:Test.Vlc.Udp"
        mc:Ignorable="d"
        xmlns:vlc="clr-namespace:LibVLCSharp.WPF;assembly=LibVLCSharp.WPF"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition Height="Auto"/>
        </Grid.RowDefinitions>
        <vlc:VideoView Background="LightBlue" x:Name="VideoViewer"/>
        <WrapPanel Grid.Row="1" HorizontalAlignment="Center">
            <Button Height="30" Width="100"  x:Name="Play" Content="播放" Click="Play_Click"/>
            <Button Height="30" Width="100"  x:Name="Stop" Content="停止" Click="Stop_Click" Margin="30,0"/>
        </WrapPanel>
    </Grid>
</Window>

CS

using LibVLCSharp.Shared;
using System;
using System.Threading.Tasks;
using System.Windows;

namespace Test.Vlc.Udp
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private async void Play_Click(object sender, RoutedEventArgs e)
        {
            await Task.Run(() =>
            {
                Core.Initialize();
                var _libvlc = new LibVLC();
                _libvlc.Log += _libvlc_Log;

                Application.Current.Dispatcher.Invoke(() => VideoViewer.MediaPlayer = new LibVLCSharp.Shared.MediaPlayer(_libvlc));

                var _media = new Media(_libvlc, "udp://@127.0.0.1:1234", FromType.FromLocation); //var _media = new Media(_libvlc, "udp://@localhost:1234", FromType.FromLocation);
                 //_media.AddOption(":access=udp");
                 //_media.AddOption(":demux=mp4v");

                 //var _media = new Media(_libvlc, "rtsp://localhost:8554/111", FromType.FromLocation);
                 //_media.AddOption(":access=rtsp-tcp");
                _media.AddOption(":clock-synchro=0");
                _media.AddOption(":live-caching=0");
                _media.AddOption(":network-caching=1000");
                _media.AddOption(":file-caching=0");
                _media.AddOption(":grayscale");
                Application.Current.Dispatcher.Invoke(() => VideoViewer.MediaPlayer.Play(_media));

            });
        }

        private void _libvlc_Log(object sender, LogEventArgs e)
        {
            Console.WriteLine(e.FormattedLog);
        }

        private void Stop_Click(object sender, RoutedEventArgs e)
        {
            VideoViewer.MediaPlayer?.Stop();
            VideoViewer.MediaPlayer?.Dispose();
        }
    }
}