Seek_closest_sync

I am using video to display on screen. The code requires capability to start at any location. I have used seekTo but the video restarts some distance from the required position, possibly the nearest key frame.
Elsewhere I can use a secondary parameter such as SEEK_ CLOSEST_SYNC or SEEK_NEXT_SYNC SEEK_PREVIOUS_SYNC but it doesn’t seem to work in Processing for
Android. Any ideas if it is possible?