Translate position
to the total running time using the currently configured segment.
Position is a value between this start and stop time.
This function is typically used by elements that need to synchronize to the global clock in a pipeline. The running time is a constantly increasing value starting from 0. When init is called, this value will reset to 0.
This function returns -1 if the position is outside of this start and stop.
this |
a Segment structure. |
format |
the format of the segment. |
position |
the position in the segment |
the position as the total running time or -1 when an invalid position was given. |