Gst.Query.new_duration

function new_duration(format:Gst.Format):Gst.Query {
    // Gjs wrapper for gst_query_new_duration()
}

Constructs a new stream duration query object to query in the given format. Use gst_query_unref() when done with it. A duration query will give the total length of the stream.

Free-function: gst_query_unref