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Latest Common Media Application Format (CMAF) in Final Draft

The Common Media Application Format (CMAF) enables efficient encoding, storage, and delivery of digital media content (incl. audio, video, subtitles among others), which is key to scaling operations to support the rapid growth of video streaming over the internet. The CMAF standard is the result of widespread industry adoption of an application of MPEG technologies for adaptive video streaming over the Internet, and widespread industry participation in the MPEG process to standardise best practices within CMAF.

At its 127th meeting, MPEG reached FDIS stage on the 2nd edition of CMAF. This edition adds support for a number of specifications that were a result of significant industry interest. Those include Advanced Audio Coding (AAC) multi-channel, MPEG-H 3D Audio, MPEG-D Unified Speech and Audio Coding (USAC), Scalable High Efficiency Video Coding (SHVC), IMSC 1.1 (TTML Profiles for Internet Media Subtitles and Captions, and additional HEVC video CMAF profiles and brands.

This edition also introduces CMAF supplemental data handling as well as new structural brands for CMAF that reflects the common practice of the significant deployment of CMAF in industry. Companies adopting CMAF technology will find the specifications introduced in the 2nd Edition particularly useful for further adoption and proliferation of CMAF in the market.


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