Parse a seeking query, writing the format into format, and other results into the passed parameters, if the respective parameters are non-NULL
the format to set for the segment_start and segment_end values, or NULL
the seekable flag to set, or NULL
the segment_start to set, or NULL
the segment_end to set, or NULL
Parse a seeking query, writing the format into format, and other results into the passed parameters, if the respective parameters are non-NULL