The OCAP Digital Video Recorder Specification

摘要

The instant a DVR is released, hordes of hackers descend on it to figure out how to add additional hard-drive ca-pacity and tweak the software. Hacking DVRs is popular because manufacturers don't use open APIs and discourage software tweaking of their DVRs. Fortunately, CableLabs (the R&D consortium for the cable television industry) has published the OCAP Digital Video Recorder (DVR) specification that defines an open API that should minimize the need to hack future DVRs based on this technology. In this article, I examine the OCAP DVR spec and show how you use it to create DVR applications.