Streaming this video my system shows it's being played in HDX and Dobly D+ and although I don't have a 4K TV I should be able to get the audio in Dolby ATMOS I believe. This is my system setup:

TV: Panasonic Viera 1080p connected by ARC HDMI cable to
A/V System: Onkyo HT-S7700 5.1.2-Channel Network A/V Receiver/Speaker Package
Receiver (part of package): Onkyo HT-R693 7.2 Channel Network A/V Receiver (Supports HDCP 2.2 and Dolby Atmos)
Chromcast Ultra connected to HDMI port #3 supporting HDCP 2.2
Video: Samsung UBD-8500 Blueray player Dolby Atmos capable HDMI connected to Onkyo receiver

I don't have any trouble getting Dolby Atmos playing Blueray disks. But I'm not getting Dolby Atmos when streaming using the VDU app on an android tablet and I start the streaming before I select the movie. The question is: Is it possible to get the full UHD effects or not? (I know I'm not getting 4K video but that's not necessary right now.)