MAUI App Demo

The Demo.Streaming.MAUI project is a cross-platform .NET MAUI application that demonstrates capture, playback, WebRTC communication, and embedded server functionality using the VASTreaming SDK. It runs on Android, iOS, macOS, and Windows from a single codebase.

Demo Pages

The application uses a tabbed navigation layout. Each tab hosts a demo page showcasing a specific feature:

Page	Tab	Description	Documentation
`SimpleCapturePage`	Capture	Camera/microphone capture and publishing to a remote server	Simple Capture
`ExtendedCapturePage`	Capture+	Advanced capture with video mixing and compositing	Advanced Capture and Mixing
`SimplePlaybackPage`	Playback	Basic media playback from a remote source	Simple Playback
`ExtendedPlaybackPage`	Playback+	Advanced playback with recording and snapshots	Advanced Playback
`WebRtcPlaybackPage`	WebRTC	WebRTC playback from a server	One-Way WebRTC
`WebRtcTwoWayPage`	WebRTC 2-Way	WebRTC two-way communication between peers	Two-Way WebRTC
`ServerPage1`	Server	Embedded RTSP streaming server running within the app	Embedded Server

Some pages require specific compilation symbols:

this.Children.Add(new SimpleCapturePage());

#if VAST_FEATURE_MIXING
this.Children.Add(new ExtendedCapturePage());
#endif

this.Children.Add(new SimplePlaybackPage());
this.Children.Add(new ExtendedPlaybackPage());

#if VAST_FEATURE_WEBRTC
this.Children.Add(new WebRtcPlaybackPage());
this.Children.Add(new WebRtcTwoWayPage());
#endif

this.Children.Add(new ServerPage1());

Application Initialization

MauiProgram

public static MauiApp CreateMauiApp()
{
    VAST.Common.Log.LogFileName = System.IO.Path.Combine(
        VAST.Common.SpecialFolderHelper.GetPath(
            VAST.Common.SpecialFolder.UserSpecificApplicationData),
        "Demo.Streaming.MAUI.log");
    VAST.Common.Log.LogLevel = VAST.Common.Log.Level.Debug;
    VAST.Common.Log.MaxLogFileSize = 10 * 1024 * 1024;

    VAST.Common.License.Key = "YOUR_LICENSE_KEY";

#if VAST_FEATURE_FFMPEG
    VAST.Codecs.CodecGlobal.Initialize();
#endif

    VAST.Common.NtpTime.Sync();

    var builder = MauiApp.CreateBuilder();
    builder
        .UseMauiApp<App>()
        .ConfigureFonts(fonts =>
        {
            fonts.AddFont("OpenSansRegular.ttf", "OpenSansRegular");
            fonts.AddFont("OpenSansSemibold.ttf", "OpenSansSemibold");
        }).ConfigureMauiHandlers(handlers =>
        {
            handlers.AddHandler(typeof(VAST.Controls.VideoPreviewControl),
                typeof(VAST.Controls.VideoPreviewHandler));
            handlers.AddHandler(typeof(VAST.Controls.MediaPlayerControlBase),
                typeof(VAST.Controls.MediaPlayerHandler));
        });

    return builder.Build();
}

The initialization performs the following:

Logging — configures the log file in the platform-specific application data folder using SpecialFolderHelper, with a 10 MB file size limit
License — the license key must be set before any other VASTreaming operation
FFmpeg — CodecGlobal.Initialize() is called when the VAST_FEATURE_FFMPEG compilation symbol is defined to prevent codec assembly from being purged by linker
NTP sync — NtpTime.Sync() synchronizes the internal clock for accurate timestamp generation and sources synchronization in Advanced Capture and Mixing sample
MAUI handlers — registers two custom MAUI handlers for VASTreaming UI controls:

Control	Handler	Description
VideoPreviewControl	VideoPreviewHandler	Renders live camera preview for capture pages
MediaPlayerControlBase	MediaPlayerHandler	Renders media playback for playback and WebRTC pages

App

protected override Window CreateWindow(IActivationState activationState)
{
    var window = new Window(new MainPage());
    window.Title = "VASTreaming MAUI Demo";
    window.Destroying += Window_Destroying;
    return window;
}

private void Window_Destroying(object sender, EventArgs e)
{
    VAST.Media.MediaGlobal.Uninitialize();
}

The App class creates the main window with MainPage (the tabbed container) as its root. MediaGlobal.Uninitialize() is called when the window is destroyed to stop internal monitoring threads and release resources.

Platform Support

The application targets the following platforms:

Platform	Minimum Version
Windows	Windows 10.0.19041
Android	API 21+ (Android 5.0+)
iOS	12.2
macOS (Mac Catalyst)	12.0

Each platform has a PlatformSpecific partial class that provides platform-specific implementations (e.g., recording file paths).

Setup

Set the license key in MauiProgram.cs:

VAST.Common.License.Key = "YOUR_LICENSE_KEY";

Select the target platform and run the application

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