Yes you are right on it, but, until now, OpenATV never implemented it, like almost all the image makers, was just Egami that from the beginning takes the patch created and cloned by xtrends devices and imported on his image, including the transcoding that now is used in many others images.
I never saw others images included it in a past.
Before install maybe I try to ask in OpenATV if they can have this possibility with an add on or plugin.