[wrxtasy]

Basically the new S905's AMLogic v3.14.xx Kernel has a whole bunch of different Display Mode ID's changes, compared to the S8xx series of AML SoC's when using current versions of Kodi Jarvis/Krypton with amcodec. These Mode ID's signal video changes to ensure Hardware accelerated video plays properly.

This breaks OE/Linux/Kodi on S905's as the amcodec decoder basically needs to be scrapped and re-written, which WeTek are currently are in the process of doing. It will take some time. The other alternative is to patch the AML v3.14.xx Kernel, for amcodec compatibility, but not desirable for the wider S9xx community going forward.

Kodi running on Android Lollipop OS is working on the C2, and its pretty snappy. It works well so long as you use the mediacodec(stagefright) Android decoder, as this uses the display mode hooks in the Android OS itself. Use amcodec for 23.976/1080p video decoding with dynamic refresh rate switching enabled and you will end up with a black screen.

Next is mpeg2 Interlaced decoding which appears to be broken across a whole bunch on Google Android OS platforms currently when using Android mediacodec decoding with Kodi. It defaults to ff-mpeg software decoding and lousy software deinterlacing.
The AML S812-H and S905's have excellent Hardware VPU deinterlacing, so software deinterlacing is not desirable at all.

So patience is going to be required at this point to bring amcodec used in AML OE / Linux / Android / Kodi up to date for all S9xx platforms.