Update to v8

[asllop]

Update the tracker to make it compatible with Bitmovin v8.

[asllop]

KNOWN ISSUE

The AD_BREAK_END event is not sent. I've been investigating it and I think it's a problem in the video-core, not in the Bitmovin tracker. Other trackers have problems with the AD_BREAK events. We have to review the video-core code responsible of ad handling thoroughly.

EDIT: issue fixed, check this comment.

[jpradhan-nr]

The changes are LGTM 👍

[asllop]

I think Bitmovin 8.181.0 (the latest version) has a bug with ad events reporting. First of all, I discovered an issue that makes the JS execution abort when we try to obtain the ad position, using the following code:

this.player.ads.getActiveAdBreak().position

This was what made the AD_BREAK_END event not to fire (reported in the previous comment) and I had to remove this code to fix the issue. So now we can't obtain the adPosition attribute. But I also discovered another problem, and there is no workaround for it. If the stream has more than one ad block, the first one (the pre-roll) works fine. But in the next one (the mid-roll), adStarted and adFinished events aren't reported by the player, but all other events are. Without these two player events we can't fire the AD_START and AD_END video events.