GStreamer uses a global clock to synchronize the different parts of a pipeline. Different clock implementations inherit from clock%. The clock returns a monotonically increasing time with get-time. In GStreamer, time is always expressed in nanoseconds.

Gets the current time of a-clock. The time is always monotonically increasing.

Returns #t if v is a number that can represent the time elapsed in a GStreamer pipeline, #f otherwise. All time in GStreamer is expressed in nanoseconds.

An undefined clock time. Often seen used as a timeout for procedures where it implies the procedure should block indefinitely.

Obtain an instance of clock% based on the system time.

Convert time to seconds.

Convert time to milliseconds (1/1000 of a second).

Convert time to microseconds (1/1000000 of a second).

Calculate a difference between two clock times.