Some third-party ads cannot be stitched into the HLS content stream due to incompatible video formats. To address this situation, Primetime Ad Insertion and the iOS PSDK provide third-party creative repackaging for progressive-download MP4 videos.
In some situations, you might need to incorporate ads (creatives) that are transcoded and served by a third party into your ad insertion workflow. For example, these could be ads that are served by an agency ad server, by your inventory partner, or by an ad network.
If a requested ad is available only as an MP4, the PSDK skips that ad and issues a request to the Primetime Ad Insertion back end to repackage the ad as HLS so that a compatible version will be available the next time that the ad is encountered. The back end generates multiple-bit-rate HLS renditions of the ad and stores these on the Primetime CDN. Then, the next time the PSDK receives an ad response that points to that ad, the PSDK uses the HLS version from the Primetime CDN.
To enable this optional feature, contact your Adobe representative.