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_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.
See Implementation
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_unref() when it is no longer needed.
Free-function: gst_date_time_unref