How Streaming Services Dynamically Insert Targeted Ads Into Videos

A method for streaming services to stitch personalized advertisements into video content by dynamically generating playlists that match the user's profile and internet speed.

What it covers

This patent describes a system for delivering video content and advertisements that adapt to both a user's internet connection speed and their demographic profile. It works by breaking down both the main video and the ads into small, bitrate-specific segments. When a user requests a video, the system identifies the user and selects a specific ad tailored to them. It then creates a master playlist that includes addresses for both the video and the chosen ad, ensuring the ad matches the quality of the video stream without requiring the server to constantly track the ad's state during playback.

What it doesn't cover

• —Does not cover ads that are hard-coded or 'burned' directly into the video file before streaming.
• —Does not cover client-side ad insertion where the video player itself fetches ads from a separate server independently of the master playlist.
• —Does not cover methods that rely on maintaining a persistent server-side session state for the advertisement throughout the entire viewing duration.

The clever bit

The system embeds the advertisement's identity directly into the media playlist addresses. This allows the server to remain 'stateless' regarding the ad, meaning it doesn't have to remember which ad it chose for a specific user session once the playlist is sent.

Why it matters

This technology is fundamental to modern ad-supported streaming services like Hulu, Peacock, and YouTube. By allowing ads to be selected and stitched into a stream at the moment of request, it enables the high-precision targeting that drives the streaming economy while maintaining a smooth, high-quality viewing experience for the user.

Real-world examples

• 1.Hulu ad-supported tier
• 2.Peacock streaming service
• 3.YouTube TV ad insertion
• 4.Dynamic Ad Insertion (DAI) in OTT platforms