Copies the first datetime for the given tag in the taglist into the variable pointed to by value. Unref the date with gst.date_time.DateTime.unref when it is no longer needed.
Free-function: gst_date_time_unref
tag to read out
address of a #GstDateTime pointer variable to store the result into
true, if a datetime was copied, false if the tag didn't exist in the given list or if it was null.
Copies the first datetime for the given tag in the taglist into the variable pointed to by value. Unref the date with gst.date_time.DateTime.unref when it is no longer needed.
Free-function: gst_date_time_unref