2025-02-25, 09:38 PM
I worked out what's causing this. It's a race condition in player.py.
If report_playback() -> detect_audio_subs() is called first, the current audio track is defaulted and this is then stored. Later, set_audio_subs() is called and this same audio track is applied. This is what should happen and, I guess, is expected to happen.
On the FireStick, though, this never happens. The set_audio_subs() is called first - which means the DefaultAudioStreamIndex returned by Jellyfin is used. The logic is then not applied correctly and the wrong audio track is applied. Later, report_playback is called, but by then the audio track has already been set incorrectly and so it never corrects itself.
I think it can be written to avoid the race condition. Will open an issue and see if those who wrote it have more thoughts on why it was done like this.
If report_playback() -> detect_audio_subs() is called first, the current audio track is defaulted and this is then stored. Later, set_audio_subs() is called and this same audio track is applied. This is what should happen and, I guess, is expected to happen.
On the FireStick, though, this never happens. The set_audio_subs() is called first - which means the DefaultAudioStreamIndex returned by Jellyfin is used. The logic is then not applied correctly and the wrong audio track is applied. Later, report_playback is called, but by then the audio track has already been set incorrectly and so it never corrects itself.
I think it can be written to avoid the race condition. Will open an issue and see if those who wrote it have more thoughts on why it was done like this.