Cloudflare has released Streamline, an open-source developer playground for building custom video pipelines with Stream, Workers and Containers. Announced on October 2, it demonstrates how a team can modify a livestream or create an alternate version of a hosted video using the company’s cloud platform.
The system separates media processing from the application that controls it. A container runs the media engine, while Workers and Durable Objects handle session control and coordination. Processing can continue when the controlling application disconnects, with a maximum session duration preventing an abandoned pipeline from running indefinitely.
Cloudflare’s example application includes overlays, subtitles, filters and picture-in-picture. Developers can run the container locally or deploy it to their own account, and the company has also published a hosted playground.
For video teams, the release offers reference code for a customized workflow rather than a finished replacement for every encoding service. Cloudflare notes that this iteration uses container CPU for processing, which can become a bottleneck at higher quality settings or frame rates. That limitation matters when evaluating live production workloads.
Related: Cloudflare K2 enters public beta for serverless event streams.
