Intended to return the viewer's current position in a media file. Values may vary depending on the type of media. See the table below for more information.
|VOD||The current playback position for a VOD file, in seconds||Number|
|Live||How long the current stream has been playing, in seconds, plus the amount of time seeked at start in order to achieve an initial target latency||Number|
|DVR||A negative value, indicating how far behind the viewer is from the stream's live position.1||Number|
1 Seeking to a live position will include a buffer of approximately -30 seconds.