Checks that result is a gstreamer.Task, and that source_object is its source object (or that source_object is NULL and result has no source object). This can be used in g_return_if_fail() checks.
A GAsyncResult
the source object expected to be associated with the task
TRUE if result and source_object are valid, FALSE if not
2.36
Checks that result is a gstreamer.Task, and that source_object is its source object (or that source_object is NULL and result has no source object). This can be used in g_return_if_fail() checks.