MediaPlayer->OnEndReached only fires on short files (mp3)

Development Cinematics & Media
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1

When testing MediaPlayer->OnEndReached with a shorter audio file that is only a few seconds it works. If I try the same code with a longer file, like a couple minutes long, it never fires.

2

Yeah, this is a bug that I just discovered. If you’re compiling the Engine from source, you can fix it by updating WmfMediaSession.cpp:

void FWmfMediaSession::GetEvents(TArray<EMediaEvent>& OutEvents)
{
#if WMFMEDIASESSION_USE_WINDOWS7FASTFORWARDENDHACK
	if (CurrentDuration > FTimespan::Zero())
	{
		FTimespan Time = GetTime();

		if ((Time < FTimespan::Zero()) || (Time > CurrentDuration))
		{
			if (!ShouldLoop)
			{
				const HRESULT Result = MediaSession->Stop();

				UE_LOG(LogWmfMedia, Verbose, TEXT("Session %p: Forced media session to stop at end: %s"), this, *WmfMedia::ResultToString(Result));
			}

			HandleSessionEnded();
		}
	}
#endif

	EMediaEvent Event;

	while (DeferredEvents.Dequeue(Event))
	{
		OutEvents.Add(Event);
	}
}

I will get this into the upcoming hotfix as well.