ArrayIndexOutOfBoundsException on getAdGroup (AdPlaybackState.java:832)

[vladlazarean]

Version

Media3 1.8.0

More version details

No response

Devices that reproduce the issue

Pixel 7, Samsung S21, Nothing Phone 3a, Lenovo tablet

Devices that do not reproduce the issue

No response

Reproducible in the demo app?

Yes

Reproduction steps

• start stream -> wait for DAI commercials -> pause the player mid DAI commercials and wait a few minutes until they suppose to end and resumes the normal stream -> the crash will appear
• start stream -> wait for DAI commercials -> wait for them to end and the stream will continue -> wait again for DAI commercials and the crash will appear

Observations:
The overlay can sometime vary, ar first it is 1/2 and when the second commercial starts it shows 2/18

Expected result

No crash

Actual result

Fatal Exception: java.lang.ArrayIndexOutOfBoundsException
length=1; index=1

androidx.media3.common.AdPlaybackState.getAdGroup (AdPlaybackState.java:832)
androidx.media3.exoplayer.source.ads.ServerSideAdInsertionMediaSource.setAdPlaybackStates (ServerSideAdInsertionMediaSource.java:176)
androidx.media3.exoplayer.ima.ImaServerSideAdInsertionMediaSource.invalidateServerSideAdInsertionAdPlaybackState (ImaServerSideAdInsertionMediaSource.java:834)
androidx.media3.exoplayer.ima.ImaServerSideAdInsertionMediaSource.setContentTimeline (ImaServerSideAdInsertionMediaSource.java:808)
androidx.media3.exoplayer.ima.ImaServerSideAdInsertionMediaSource.access$2900 (ImaServerSideAdInsertionMediaSource.java:114)
androidx.media3.exoplayer.ima.ImaServerSideAdInsertionMediaSource$ComponentListener.lambda$onAdPlaybackStateUpdateRequested$0$androidx-media3-exoplayer-ima-ImaServerSideAdInsertionMediaSource$ComponentListener (ImaServerSideAdInsertionMediaSource.java:1083)
androidx.media3.exoplayer.ima.ImaServerSideAdInsertionMediaSource$ComponentListener$$ExternalSyntheticLambda0.run (D8$$SyntheticClass)
android.os.Handler.handleCallback (Handler.java:938)
android.os.Handler.dispatchMessage (Handler.java:99)
android.os.Looper.loopOnce (Looper.java:226)
android.os.Looper.loop (Looper.java:313)
android.app.ActivityThread.main (ActivityThread.java:8751)
java.lang.reflect.Method.invoke (Method.java)
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:571)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1135)

Media

Details of drm and tag dai will be sended to the email android-media-github@google.com

Bug Report

• You will email the zip file produced by adb bugreport to android-media-github@google.com after filing this issue.

[marcbaechinger]

Thanks for your report!

I get a 401 when I try to play the DRM'd stream you sent us in the email. Anything I need to do to play the stream (without ads as a first step)?

Is there some geoblocking in place that requires us to VPN into a given country? PLease let us know if this is tha case. The email says I have 6 hours to check :)

No rush, I won't have a chance to look into this again today. Please send instructions to the email address again if you don't want to do this here. I'm sorry not following your directions, we don't respond to email directly and we also don't do phone calls.

[vladlazarean]

Hello Marc, thanks for the response! You're right, it's blocked outside our network, I will try to get back to you later today with an email containing a VPN solution.

Regarding the DRM, are there any preferred hours when I can send you the token, considering the 6-hour check window?

[marcbaechinger]

Thanks for the email.

We can't provide you with an IP-range I'm afraid. Besides that we are a globally distributed team that would require access, I wouldn't even know exactly where my personal VM is running to be honest.

Can this problem be repro'd with one of the streams of the demo app?

If not it may be useful for us if you add an EventLogger to your player, then do the repro and after that capture ad bugreport (adb bugreport). Then send the bug report to our email address. I can then take a look to try figuring out what is going on.

The overlay can sometime vary, ar first it is 1/2 and when the second commercial starts it shows 2/18

What would be your expectation that it shows?

Regarding your repro steps: I understand these are two ways to repro this? Does it crash only when the stream is paused?

[vladlazarean]

I understand.

The problem doesn't happen with the IMA DAI streams provided in the demo app.
(I tested with IMA DAI streams - DASH live: Tears of Steel (mid), 3 ads each [10 s] - ssai://dai.google.com/?assetKey=jNVjPZwzSkyeGiaNQTPqiQ&format=0&adsId=1), also tested it with DAI tag PSzZMzAkSXCmlJOWDmRj8Q from google doc.

The overlay can sometime vary, ar first it is 1/2 and when the second commercial starts it shows 2/18

On this case I expected to show from the first commercial 1/18 so regarding the error I was thinking there are 2 pods of dai ads inserted into the stream, so it might have been a problem from there.

Regarding your repro steps: I understand these are two ways to repro this? Does it crash only when the stream is paused?

Not only, it happens when I pause mid DAI commercials and wait.
And it happens if the stream plays continuously, until the second DAI commercials begin. (stream -> dai commercials time -> stream -> dai commercials time, here it crashes)

Also the crash doesn't happen if I releasePlayer() and start it again after commercials end.

Will see and come back to you with a more detailed log.

[vladlazarean]

Hey Marc, any ideas on the sended logs :D ?

[vladlazarean]