What is the video size limit for in-banner links?
15-30 seconds. The client is required to build the tags and send them to us for this ad.
Ability to frequency cap
There should not be a frequency cap on banner videos. These run based on how many impressions (not starts) are booked, and will not run as a share-of-voice ad.
Can we tell how far a viewer watches the content?
Unlike in-article videos, with an in-banner video we cannot tell how far into the video clients reached.