CDN Integration
We highly recommend that you use a content distribution network (CDN) such as Amazon CloudFront to improve the efficiency of the ad stitching workflow between AWS Elemental MediaTailor and your users. The benefits of a CDN include content and ad caching, consistent domain names across personalized manifests, and CDN DNS resolution.
When you use a CDN in the AWS Elemental MediaTailor workflow, the request and response flow is as follows:
-
The player requests a master manifest from the CDN with MediaTailor as the manifest origin. Personalized manifest requests are proxied through the CDN, and the CDN forwards the requests to MediaTailor.
-
MediaTailor personalizes the manifest and substitutes CDN domain names for the content and ad segment URL prefixes. MediaTailor sends the personalized manifest as a response to the CDN and consequently to the requesting player.
-
The player requests segments from the URLs that are provided in the master manifest.
-
The CDN translates the segment URLs and forwards content segment requests to the origin server and ad requests to the Amazon CloudFront distribution where MediaTailor stores transcoded ads.
-
The origin server and MediaTailor respond with the requested segments, and playback begins.
The following sections describe how to configure MediaTailor and the CDN to perform this flow.
