cif -i :0.0 out.mpg
</pre></div>

</dd>
<dt>&lsquo;<samp>video_size</samp>&rsquo;</dt>
<dd><p>Set the video frame size. Default value is <code>vga</code>.
</p>
</dd>
<dt>&lsquo;<samp>grab_x</samp>&rsquo;</dt>
<dt>&lsquo;<samp>grab_y</samp>&rsquo;</dt>
<dd><p>Set the grabbing region coordinates. They are expressed as offset from
the top left corner of the X11 window and correspond to the
<var>x_offset</var> and <var>y_offset</var> parameters in the device name. The
default value for both options is 0.
</p></