Application doesn't warn about missing VLC dependency #35

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opened 2026-07-29 20:09:17 +09:00 by AnthonyKwon · 2 comments

AnthonyKwon commented

2026-07-29 20:09:17 +09:00

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Expected Behavior

App should warn about missing VLC dependency on its (or audio) open.

Actual Behavior

App freezes for a while(1~2 minutes) and throws error, and continues w/o audio player capability.
error shown on terminal:

Error occured while opening audio. Player will be disabled. Details:
File Open operation timed out.

Additional Context

         try
         {
             //TODO: show static loading screen
             //      (animated loading is not viable due to VLC initialization freeze)
             // start the task to open the audio file
             Task.Run(() => _player.Open(audioPath));
             // wait for the audio file to opened and player is ready
             // workaround: rarely, this might take at least 1~2 minutes because of VLC initialization.
             //             set timeout long enough to user don't get timed out because of this.
             for (int i = 0; i < 60 && _player.State == PlayerState.Nothing; i++)
                 await Task.Delay(1000);
             // check if audio player is ready
             if (_player.State == PlayerState.Nothing)
                 throw new FileLoadException("File Open operation timed out.", audioPath);
         }

Current suspect is Task.Run(). It might not catch exception inside it's callback, so VLC exception might silently ignored. so app will just wait for 1 minute, and just throws FileLoadException since _player.State still stuck at PlayerState.Nothing.

## Expected Behavior App should warn about missing VLC dependency on its (or audio) open. ## Actual Behavior App freezes for a while(1~2 minutes) and throws error, and continues w/o audio player capability. error shown on terminal: ``` Error occured while opening audio. Player will be disabled. Details: File Open operation timed out. ``` ## Additional Context https://git.thonlog.com/AnthonyKwon/ti_lyricstudio/src/commit/7af8ce7ce80a1424cb6045f9097447b2096e053f/ti_lyricstudio/ViewModels/PlayerUI/PlayerUIWindowViewModel.cs#L111-L128 Current suspect is `Task.Run()`. It might not catch exception inside it's callback, so VLC exception might silently ignored. so app will just wait for 1 minute, and just throws `FileLoadException` since `_player.State` still stuck at `PlayerState.Nothing`.