getVideoHeight
Gets the height of the currently configured video data source.
Return
the height of the video, or 0 if there is no video, no display surface has been set, or the height has not yet been determined. Once the CypressMediaPlayer is prepared, you can obtain the real-time video height. You can register a CypressMediaPlayerCallback via registerCypressMediaPlayerCallback to receive a notification when CypressMediaPlayer is prepared and the height becomes available.