How can I use mpv to get the current frame position and seek to a specific frame?

[ahaoboy]

In mpv, most seeking operations are based on time. I am looking for a way to use frames as the seeking unit instead.

A simple use case would be: get the current frame position, then jump to the 10th frame after it, or the 10th frame before it.

The approach I have found so far is to first convert time to frames using the FPS, perform the calculation in frames, and then convert the result back to time for seeking. I am not sure whether this is the correct approach. Is there any simpler or more direct way to achieve this?

[verygoodlee]

estimated-frame-number property can get the current frame position,
frame-step command supports relative frame number jumps ( e.g. frame-step -10 seek )

[ahaoboy]

One drawback is that the frame-step parameter is an offset, but this is currently the simplest implementation. Thank you.