Determines if @value1 and @value2 can be non-trivially unioned.
Any two values can be trivially unioned by adding both of them
to a GstValueList. However, certain types have the possibility
to be unioned in a simpler way. For example, an integer range
and an integer can be unioned if the integer is a subset of the
integer range. If there is the possibility that two values can
be unioned, this function returns %TRUE.
Determines if @value1 and @value2 can be non-trivially unioned. Any two values can be trivially unioned by adding both of them to a GstValueList. However, certain types have the possibility to be unioned in a simpler way. For example, an integer range and an integer can be unioned if the integer is a subset of the integer range. If there is the possibility that two values can be unioned, this function returns %TRUE.