We are currently using the samples from GitHub https://github.com/milestonesys/mipsdk-samples-protocol/tree/main/TcpVideoViewer which lets us playback the video with the left timestamps. How do you change this time that we want to retrieve, if we would like to playback other parts of the recording?
If you click on any of the times of the list playback will start and will start at the time listed. You can single step debug how this works and that should tell you how you can develop functionality that use other times.
You start the playback and then it continues. You will have to implement something that listens to the timestamps of the video and the stop at the time you want it to stop. The interface is simple; you go to a time and start and cannot at that time specify a stop time.