Role in the chain: Encode. Repository: rt-cmmf-encoder (its card on the project page, with links to GitHub).
What it is
The CMMF Encoder encodes packaged media into Coded Multisource Media Format (CMMF) bitstreams for multisource delivery. CMMF is a container format for carrying coded media from more than one source. It supplements existing packaging, such as ISO BMFF or CMAF, rather than replacing it, and it carries no manifest of its own. The repository is the encoder side only: source data in, CMMF bitstreams out. The decoder and the delivery architecture are out of scope.
Its README marks it as experimental and says that the repository is at its initial commit, so no encoder code has landed yet. The status is on the Implementation Detail page.
Specification basis
ETSI TS 103 973 V1.1.1 (2024-10), Coded Multisource Media Format (CMMF) for Content Distribution and Delivery. The README names code type xCD-1, which the specification defines in its annex A. For the specification, see CMMF on the Standards portal.
Where it is used
5G Media Streaming (5GMS) lists this repository among the repositories it cross-references.
Tutorials
Not yet published.
Related
- Content Delivery Protocols and Tools and its tool map
- Implementation Detail