Add error and video playback tracker support

[vivekyadav15]

Type of Issue

Feature Request

Description

Currently, Prebid.js allows analytics adapters to register VAST impression trackers, which are injected into the <Impression> tags of the VAST XML. However, the VAST specification also supports additional trackers such as error tracking through the <Error> tag and video playback tracking (for example, start, quartiles, and completion) through the <TrackingEvents> tag which are not supported at present.

Problem

Analytics adapters cannot register or inject:

• Error trackers into VAST <Error> tags to capture ad playback and rendering failures
• Video playback tracking pixels for standard VAST events such as start, quartiles, and completion

Due to the lack of support for this limits observability, making it difficult to accurately monitor, debug, and analyze video ad delivery and performance.

Requirement

Extend the existing VAST tracker framework to allow analytics adapters to register multiple VAST tracking events, including:

• Impression tracking
• Error tracking
• Video playback milestone tracking (start, quartiles, complete)

All registered trackers should be automatically injected into the appropriate VAST XML tags, without affecting existing impression tracking behavior.

[patmmccann]

very interesting, do you work at a company producing an analytics adapter? Would you like to contribute this feature?

[patmmccann]

@matthieularere-msq did the https://github.com/prebid/Prebid.js/pull/10191/files contribution; would be a good template

[matthieularere-msq]

@patmmccann I believe this vastTrackers library could be updated so it manages more tracker types. I focused on video when I did it because it was my need at the moment but following the same mechanism for other trackers should not be too hard.

[vivekyadav15]

very interesting, do you work at a company producing an analytics adapter? Would you like to contribute this feature?

I work at Medianet and would be happy to contribute to this feature. I’ll share the MR shortly.

[vivekyadav15]

@patmmccann Just for your information, I have raised the respective PR. Please let me know if you have any questions or need clarification on anything.