Video Start Time
When IMA3 is configured, regardless of whether there's a preroll, the Analytics emitter in Brightcove Player falls back to loadstart when calculating Video Start Time. In click-to-play player configurations, this inflates Video Start Time incorrectly.
Resolution
- For player v6, update the player version to 6.67.5 or higher.
- For player v7, update the player version to 7.9.0 or higher.
Rebuffering Time
Rebuffering when empty VAST ads are returned for postrolls
At the end of the main video, you can see 4 seconds of buffering, which can decrease the QoE score.
Rebuffering seconds set to 10 by the analytics emitter in iOS when IMA3 plugin is used
When the IMA3 plugin is active, the analytics emitter in Brightcove Player consistently sets rebuffering_seconds to 10 on every engagement beacon in iOS, even in cases when there’s no rebuffering or actual rebuffering time is much shorter. As a result, this can lead to skewed/inflated rebuffering time in QoE.
Buffering seconds set to 10 seconds in iOS mobile devices.
When a player is set to loop and has the scrolling player into view plugin, the analytics emitter in Brightcove Player consistently sets buffering_seconds to 10 on every engagement beacon in iOS when switching between apps. As a result, this can lead to skewed/inflated rebuffering time in QoE.
Rebuffering seconds are not always set in engagement beacons when buffering occurs
Rebuffering time metrics are not always set in engagement beacons when buffering occurs.
Resolution
- For player v6, update the player version to 6.67.6 or higher. Use IMA v3.8.2 for IMA3 version 3, and use IMA v4.3.1 for IMA3 version 4.
For player v7, update the player version to 7.7.0 or higher. Use the IMA version 5 if you're using player v7.0.0 or higher but less than v7.7.0.
Upscale Time
Safari browsers do not report rendition information. There is an opt-in mechanism to gather this information in player v7.5.0 and later. It requires a second manifest request.