AWS Elemental MediaTailor is a server-side ad insertion (SSAI) service designed to deliver broadcast-quality, personalized ads into live and on-demand video streams. It enables seamless monetization without compromising viewer experience—by stitching ads directly into content streams on the server side rather than relying on the client (e.g., video player) to handle ad playback.
Here’s a breakdown of how MediaTailor functions:
- Video Stream Preparation – Live or VOD content is encoded and includes SCTE-35 (or equivalent) ad markers that define ad break positions.
- Player Requests Stream – When a viewer initiates playback, the video player requests the stream from MediaTailor instead of directly from the content origin.
- Personalized Ad Decisioning – MediaTailor contacts an Ad Decision Server (ADS) using VAST or VMAP to fetch personalized ad creatives based on viewer data and context.
- Server-Side Stitching – MediaTailor stitches content and selected ads into a single, seamless stream, maintaining consistent resolution and playback quality.
- Playback & Reporting – The viewer receives a continuous stream with embedded ads, while MediaTailor triggers server-side ad tracking for accurate analytics and reduced ad blocking.
- Ad Fallback Handling – If no ad is available, MediaTailor inserts a default slate or promo to fill the break and preserve viewer experience.
- CDN Integration – The stitched stream is delivered via one or more CDNs, ensuring global scalability and low-latency playback.
- AWS Integration – MediaTailor works seamlessly with other AWS Media Services like MediaLive (for encoding) and MediaPackage (for content origination and DRM).