[Koying]

you have to understand this issue
This padding works fine in the default Android Framework it just fails with 3rd party GPU Render implementations so far

No. It fails because Rockchip OMX components are using the published width/height of a stream rather than the MOD16 one used by THEIR decoder to allocate THEIR HW buffers we don't have access to.
On all other platforms, the MOD16 width/height is properly used, so it is just a plain stupid coding error/typo.