Pass video.placement through to Prebid Server

[bretg]

Type of issue

Enhancement

Description

Prebid Server doesn't get any indication of whether a video request is instream or outstream, and what kind of "placement" it is.

Proposal

1. We modify the PrebidServerBidAdapter to support setting imp[].video.placement

• if AdUnit.mediaTypes.video.placement is defined send that as imp[].video.placement
• else if AdUnit.mediaTypes.video.context="instream", send imp[].video.placement=1

2. We modify the Prebid.org documentation to suggest defining placement when setting outstream.

https://docs.prebid.org/prebid-video/video-getting-started.html
https://docs.prebid.org/dev-docs/show-outstream-video-ads.html

[mike-chowla]

Approach looks to good to me.