gst_query_set_convert  270 gst/gstquery.h void            gst_query_set_convert           (GstQuery *query, GstFormat src_format, gint64 src_value,
gst_query_set_convert 1021 libs/gst/base/gstbasesrc.c       gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);