Multicast

Scalable Video Streaming Protocols and Delivery Video streams must pass through variable networks. Scalable delivery combines adaptive protocols, smart chunking, and edge caches to keep viewers watching without stalls. Most modern systems rely on HTTP-based streaming with adaptive bitrate (ABR) and CMAF as a common format. Two widely used protocols are HLS and MPEG-DASH. Both segment video into small chunks and switch quality based on measured bandwidth and CPU. They ride over HTTPS, which makes it easy to cache at CDNs and pass firewalls. For lower latency, LL-HLS and low-latency DASH add shorter segments and partial manifest updates, reducing end-to-end delay to a few seconds. ...