+\fB\-X\fR, \fB\-\-width\fR \fIwidth\fR
+Force the output to width \fIwidth\fR. (Otherwise, the width of the master file will be used)
+.TP
+\fB\-Y\fR, \fB\-\-height\fR \fIheight\fR
+Force the output to height \fIheight\fR. (Otherwise, the height of the master file will be used)
+.TP
+\fB\-r\fR, \fB\-\-rate\fR \fIrate\fR
+Force the output to have the framerate \fIrate\fR. (Otherwise, the framerate of the master file will be used)
+.TP