The present and future of post production business and technology

H.264 SVC – extending the standard

H.264 SVC – extending the standard multiple quality levels out of the same file for adaptive bitrates. Nice

Scalable Video Coding (SVC) is a new extension of the H.264/MPEG-4 AVC video compression standard that enables multi-platform and adaptive streaming from a single file. Andy explained that existing adaptive bit rate technologies creates multiple files that enhances the viewing experience. Yet it puts a real burden on the infrastructure, and increases the workload and cost of content creation, storage and delivery. But with SVC, instead of producing separate streams, the SVC encoder converts the source into layers in an “encode once serve many” model. The SVC stream is comprised of 3 dimensions – clarity, spatial, and temporal layers and each layer adds information to the lower layers, rather than just duplicating information into multiple bit rates.

Another round of learning coming up!