Constructs a new convert query object. Use Query.unref when done with it. A convert query is used to ask for a conversion between one format and another.
Free-function: Query.unref
the source GstFormat for the new query
the value to convert
the target GstFormat
a gstreamer.Query
ConstructionException GTK+ fails to create the object.
Constructs a new convert query object. Use Query.unref when done with it. A convert query is used to ask for a conversion between one format and another.
Free-function: Query.unref