The Common Media Application Format (CMAF; officially MPEG-A Part 19 or ISO/IEC 23000-19) is a newer initiative, that builds on MPEG-DASH standardization, but also attempts to reconcile the de-facto adaptive streaming standard (HLS as defined, implemented and evolved by Apple) with some of the DASH-related advances and move the ball forward to a truly secure common file format that can be used as the origin of all streaming delivery.