Advertising that has to arrive without breaking the stream

Putting an advert into a video stream is harder than it looks. Insert it in the browser and it is easy to block and easy to stall. Insert it further back, in the manifest the player reads, and the revenue is protected but a bad join becomes a black frame that nobody can reproduce.

The standards for doing it properly are young and they differ between the two formats the industry actually uses. What works on one device family does not always work on another, and the difference only shows up on real hardware.

The work was prototyping and evaluating those approaches for both live and on demand, on the devices they have to survive, so a product decision could be made on evidence rather than on a specification.