Common Mezzanine Distribution Format (CMZF): For ABR TV Distribution

Pay TV service providers need a way to re-use their extensive multicast MPEG-2 TS based infrastructure with scalable and reliable workflows for Ad Insertion and Fast Channel Change for managed (and OTT) ABR TV services. Recent industry developments provide Common Media Application Format (CMAF) as a normalized playout format for efficient storage and distribution. CMZF proposes carriage of CMAF (ISOBMFF) fragments over MPEG-2 TS streams. Video can be packaged in CMZF using existing workflows, and stored securely in origins and caches. The desired final CMAF (and HLS/DASH/SS) format is generated as needed via a simple container transformation in the gateway or STB without the need for re-encryption.