Patent ID: 8731000

Claim:
A method, comprising: receiving a video stream comprising a first compressed picture without associated time stamp information and a second compressed picture having associated first time stamp information, the second compressed picture following the first compressed picture in transmission order; deriving second time stamp information based on the first time stamp information, wherein deriving the second time stamp information comprises: determining a backward extrapolation period (BEP), wherein determining the BEP comprises locating a predetermined BEP value, determining a start time for the backward extrapolation period, wherein the start time is a time of ingestion of the video stream, performing backward extrapolation based on the start time and the backward extrapolation period; and determining whether a value corresponding to the second time stamp information has expired and, responsive to the determination, reconfiguring a system time clock to match the value to enable the processing; and processing the first compressed picture based on the second time stamp information.