[Illumin]

Got it, so we are stuck, I can't think of any other way, unless someone that has other S812 devices can try the modified apk and see if it works there or if it's harmless. I have any other device to try

I tried the modified Kodi apk with "another S812 device" (KitKat 4.4.2, btw) and it seems to work: I used some test files (1920x1080) and a couple of "problematic" 1920x720 movies: no skips, no drops, no problem...

With the unmodified Kodi 15.2 from the store I got a lot of skipped frames, and this: http://forum.kodi.tv/showthread.php?tid=229310 didn't solve the problem. Your version did.

So, I don't know if it's good news for you guys, but for me it is!