Can not get duration before audio play

[VCasecnikovs]

After setting the source I am trying to get the duration of the audio file. Unfortunately, the answer is zero.

The code:

    await player.setSource(event.source);
    var duration = await player.getDuration();

Platforms OS: Windows & Android

[Gustl22]

This cannot be guaranteed in all cases. The problem is e.g. for mp3 the duration is estimated which only will precisely work if playing the audio. But I didn't experience that on Android/Windows yet...

[tffajari]

I have the same issue here, just_audio offer get duration before we play audio, but there is already to much code I implement using audio_player

[Gustl22]

Closing in favor of #1033