[Android] MetaDataReady is called even when mediaPlayer.Info.GetDuration() still returns 0

[johnsympatient]

Unity version

6000.0.65

Unity editor platform

Windows

AVPro Video edition

Core

AVPro Video version

3.3.6

Device hardware

Samsung S8

Which Android OS version are you using?

8

Unity Graphics API

OpenGLES 3

Video API

Exoplayer

Texture format

BGRA

Audio output

System Direct

Any other Media Player component configuration required to reproduce the issue.

No response

Which output component(s) are you using?

Display uGUI

Any other component configuration required to reproduce the issue.

No response

The issue

When MediaPlayerEvent.EventType.MetaDataReady is called, mediaPlayer.Info.GetDuration() often still returns 0.
As it works sometimes, it seems to be a race condition somewhere

Media information

No response

Logcat output

[Chris-RH]

1. Does this also occur when you switch the video API to Exoplayer?
2. Are you streaming or playing local media?
3. Is it reproducible in a new project running only the AVPro demo scenes?
4. When you say 'often', how often do you mean? Always the same media type or different media type?

[johnsympatient]

1. Sry, edited, I meant exoplayer
2. streaming, sent you the link via mail
3. Havent tested yet, will do now
4. I would say 9 out of 10 times it fails

[johnsympatient]

@Chris-RH Happens with the demo player as well.
I added this code snippet to the MediaPlayerUI provided by the Demo:

public void OnVideoEvent(MediaPlayer mediaPlayer, MediaPlayerEvent.EventType eventType, ErrorCode errorCode)
		{
			switch (eventType)
			{
				case MediaPlayerEvent.EventType.MetaDataReady:
					Debug.Log(nameof(MediaPlayerEvent.EventType.MetaDataReady));
					Debug.Log(mediaPlayer.Info.GetDuration());
					break;
			}
		}

Registered the event in Start() as the first line there
_mediaPlayer.Events.AddListener(OnVideoEvent);

It ouputs 0 when deploying the demoplayer to the android phone when using the media link I sent you via mail

[Ste-RH]

We think this is a single frame bug in meta data reporting it has the desired info, and it being fed over from the plugin to c# via the asset info update.

A sure fire way to get duration is to wait for the MediaPlayerEvent.EventType.FirstFrameReady event.

We will look at making the MetaDataReady more reliable, but cannot say when this will be completed.

[Ste-RH]

I have found a decent way to make the MetaData event more reliable with respect to video duration. This will be in the next release (v3.3.7).