How can I reset yaw orientation?

[animis93]

I'm developing an app that plays 360 videos.
Every time I start the activity that handles the 360 video, it always has a starting angle (yaw) different from the center of the video.

How can I reset the starting yaw orientation?

I saw in GvrApi this method:

public void recenterTracking ()

Recenters the head orientation (resets the yaw to zero, leaving pitch and roll unmodified).

How can I use it in video360 sample?