Both MPEG-2 and MPEG-4 have several revisions, while not being directly tied to the &quot;compression&quot; which might be the wrong choice of words IPMP hooks into virtually every step in the encoding and decoding pipeline.
You can implement multiple IP controls over every bit of the format from audio streams to the scene constructing language that is used to rebuild the scene it self so you can technically put DRM on individual elements so you can literally force people to pay money to see Kevin Spacey instead of a banana in house of cards without having to encode 2 completely different video streams into the file, but I&#x27;m pretty sure people will pay extra to see a banana instead of Kevin Spacey.<p>And while you can make a DRM free encoder it&#x27;s still wasn&#x27;t the argument that i was talking about if there won&#x27;t be a well established and well integrated DRM mechanism within the design of the Codec it will be dead in the water since for a codec to be widely accepted these days it needs to be adopted by the media&#x2F;movie&#x2F;tv&#x2F;streaming&#x2F;content delivery whatcha gonna call it industry and that industry needs DRM.
Heck even sites like YouTube use DRM these days (paid content trough), Twitch and other similar sites will eventually have to enable DRM too if they want to offer premium content as it&#x27;s much easier to gate people with DRM than to have some weird session based authorization for streaming which is a nightmare and doesn&#x27;t really work as DRM.
And using multiple codecs (cie? x&#x27;s? xes?) is probably not a viable approach either.