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Startup: libVLC-Init auf Background-Thread, kein UI-Freeze beim Start

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administrator 2026-05-11 16:52:50 +02:00
parent c91944e965
commit 6e172484f8
1 changed files with 25 additions and 20 deletions
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45
MainWindow.xaml.cs
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@ -104,28 +104,17 @@ public partial class MainWindow : Window
private async void MainWindow_Loaded(object sender, RoutedEventArgs e) private async void MainWindow_Loaded(object sender, RoutedEventArgs e)
{ {
InitializePlayer(); // Core.Initialize lädt libVLC-Natives (~5-10s) und blockiert sonst den UI-Thread.
// Natives auf Background-Thread, UI-Zuweisung (VideoView) danach auf UI-Thread.
await Task.Run(InitializePlayerNatives);
InitializePlayerUi();
await LoadChannelsAsync(); await LoadChannelsAsync();
RestoreLastChannel(); RestoreLastChannel();
// EPG im Hintergrund laden — wird für "Danach"-Anzeige und EPG-Overlay gebraucht
_ = LoadEpgInBackgroundAsync(); _ = LoadEpgInBackgroundAsync();
} }
private async Task LoadEpgInBackgroundAsync() /// <summary>Schritt 1 (Background-Thread): libVLC-Natives laden. Kein UI-Zugriff.</summary>
{ private void InitializePlayerNatives()
if (_epgService.IsCurrent) return;
try
{
await _epgService.LoadAsync();
// Nach EPG-Load: "Danach" für aktuellen Sender setzen
if (_currentChannel != null)
Dispatcher.BeginInvoke(() => UpdateNextFromEpgService(_currentChannel));
}
catch { }
}
private void InitializePlayer()
{ {
var exeDir = Path.GetDirectoryName( var exeDir = Path.GetDirectoryName(
System.Reflection.Assembly.GetExecutingAssembly().Location)!; System.Reflection.Assembly.GetExecutingAssembly().Location)!;
@ -139,12 +128,28 @@ public partial class MainWindow : Window
"--no-video-title-show", "--no-video-title-show",
"--no-osd", "--no-osd",
"--no-snapshot-preview", "--no-snapshot-preview",
"--rtsp-tcp" // RTP over TCP: stabilere Sessions, vermeidet UDP-Routing-Kollisionen "--rtsp-tcp"
// wenn mehrere Instanzen parallel auf die gleiche FritzBox zugreifen
); );
_player = new MediaPlayer(_libVLC); _player = new MediaPlayer(_libVLC);
_player.Volume = (int)SldVolume.Value; // Value-Lesen ist thread-safe (DependencyProperty)
}
/// <summary>Schritt 2 (UI-Thread): MediaPlayer an VideoView binden.</summary>
private void InitializePlayerUi()
{
VideoView.MediaPlayer = _player; VideoView.MediaPlayer = _player;
_player.Volume = (int)SldVolume.Value; }
private async Task LoadEpgInBackgroundAsync()
{
if (_epgService.IsCurrent) return;
try
{
await _epgService.LoadAsync();
if (_currentChannel != null)
Dispatcher.BeginInvoke(() => UpdateNextFromEpgService(_currentChannel));
}
catch { }
} }
private void MainWindow_Closing(object? sender, CancelEventArgs e) private void MainWindow_Closing(object? sender, CancelEventArgs e)