The video specific Start Delay targeting allows you to target your line items to specific placement of your ads within videos. There are the following start delay types available:
Pre-roll: your ad will be played before the video starts.
Mid-roll: your ad will be played during the video runtime. The video will resume after the ad.
Post-roll: your ad will be played when the video is completed, before the next video starts playing.
By default, BidCore targets all ad placement types, including undefined.