This I agree with his solution was a bit much for me to do. So my hack but working solution was to create a cube capture target. Have the texture open on the desktop and with a matinee attached to the cube capture. I play the matinee and screen capture the updating texture. Crop it and bam you have a working 360 x 180 video.
Note: with a 1440 p monitor the video is 2550*1275 the Gear Vr can play it but the resolution really needs to be double that at least.
I screen capture at 15 fps and play the matinee at 1\2 speed so the updating is smoother. Then in the Gear Vr play it at 30 fps. Looks great just missing post processing.
Let me know what you think.