Changes

This is the reasonable ''maximum video resolution'' that can be fully decoded in software (this is due to iMX6UL absence of 3D hardware accelerator)

===Use case #2: MPEG4 320x180@24fps===

This can be a more ''real use case'' where the cpu is partially devoted to video decoding and can perform the other usual tasks (graphics, user interaction, peripherals controls, etc.) without major impacts.