Translate running_time
to the segment position using the currently configured segment.
Compared to position_from_running_time this function can return negative segment position.
This function is typically used by elements that need to synchronize buffers against the clock or each other.
running_time
can be any value and the result of this function for values outside of the segment is extrapolated.
When 1 is returned, running_time
resulted in a positive position returned in position
.
When this function returns -1, the returned position
was < 0, and the value in the position variable should be negated to
get the real negative segment position.
this |
a Segment structure. |
format |
the format of the segment. |
running_time |
the running-time |
position |
the resulting position in the segment |
a 1 or -1 on success, 0 on failure. |