Capture secondary camera into texture (VR)

Looking for a programmer / designer to create asset which lets me

Capture the world with virtual phone camera into video file (in VR).

**Purpose: **HTC vive (or Oculus) controller is used to hold a smartphone camera to film the world around me in VR environment. When I press the button, the view should be recorded into video file on the disk.

**Note: **This should work in VR. Asset should be easily integrated into my game.

Let me know if the this task is clear enough or if I should provide more info.