Embedding monotonic clock of sending computer into video stream

[Matt Green]

> I am working on a problem where I need to correlate each
> frame of a video stream to the location and attitude of the camera
> when each frame was captured. The monotonic clock of a sending
> computer is packaged with this physical data and sent to a receiving
> computer. At the same time, video frames are captured and transmitted
> using RTP and H264 via gstreamer over UDP.
> 
> I need to find a way to either embed that same monotonic clock for each
> frame into the stream and extract on the receiving end, or somehow
> derive this clock from the RTP header info and maybe an offset value?
> 
> Does anyone know of a good way to accomplish this?