A function that will be called in gst_structure_filter_and_map_in_place(). The function may modify @value, and the value will be removed from the structure if %FALSE is returned.
%TRUE if the field should be preserved, %FALSE if it should be removed.
See Implementation
A function that will be called in gst_structure_filter_and_map_in_place(). The function may modify @value, and the value will be removed from the structure if %FALSE is returned.