安装依赖
LibVLCSharp
LibVLCSharp.WPF
VideoLAN.LibVLC.Windows

MainWindow.xaml

<Window x:Class="视频流测试.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:视频流测试"
        mc:Ignorable="d"
        xmlns:Vlc="clr-namespace:LibVLCSharp.WPF;assembly=LibVLCSharp.WPF"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <Vlc:VideoView  x:Name="video_main" />
    </Grid>
</Window>

MainWindow.xaml.cs

using LibVLCSharp.Shared;
using System.Windows;

namespace 视频流测试
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            LibVLC _libvlc = new();
            MediaPlayer player = new(_libvlc);
            video_main.Width = Width;
            video_main.Height = Height;
            video_main.MediaPlayer = player;
            //通过设置宽高比为窗体宽高可达到视频铺满全屏的效果
            player.AspectRatio = Width + ":" + Height;
            string url = "rtsp://37.157.51.30/axis-media/media.amp";
            using Media media = new(_libvlc, new Uri(url));
            video_main.MediaPlayer.Play(media);
        }
    }
}