Apple: Why does VTEncoderXPCService take up all my cpu? (5 Solutions!!)
VTDecoderXPCService is the sandboxing for video content in Lion. All things that are QuickTime related, audio or video, are sandboxed by this service. It just clicked as to what it is. We have iCam for our iPhones. It allows us to remotely view from the webcams on our machines.
VTEncoderXPCService tied to QuickTime, they go hand in hand, no VTE = no recording