Analysis of information sources in references of the Wikipedia article "GPAC Project on Advanced Content" in English language version.
The GPAC and MP4Box trademarks are internationally registered by Telecom ParisTech
GPAC deployed by Netflix as their primary packager
Netflix uses GPAC in all their packaging scenarios
uses MP4Box installed as a part of GPAC package to convert the MPEG-DASH streams into a valid mp4