There is specifications on the camera here:
HDMI Live Streaming Specifications (RICOH THETA S only)
Dual-Fisheye data in uncompressed YCbCr format is output.
Image size: 1920x1080 / 1280x720 / 720x480
Frame rate: 30fps
Note that the output of the HDMI is dual-fisheye. You’ll still need a way to stitch it into a sphere.
Megan Zimmer wrote a tutorial on using SteamVR. She’s using an HTC Vive, not a Oculus Rift.
I don’t quite understand your setup. Is the headset directly connected to the laptop with HDMI and USB cables? If not, how are you transmitting the signal from the laptop to the headset?
Most people I know are using the USB output of the THETA to get the video into Unity.
Ricoh used LiveShell with their live streaming demo at CES using the Ricoh R Dev Kit.
