span class="comment">% videoWriter class constructor</span>
0003 <span class="comment">%   Creates a object that writes video files.  We use a plugin</span>
0004 <span class="comment">%   architecture in the backend to do the actual writing.  For example,</span>
0005 <span class="comment">%   on Windows, DirectShow will typically be used and on Linux, the</span>
0006 <span class="comment">%   ffmpeg library is often used.</span>
0007 <span class="comment">%</span>
0008 <span class="comment">%   vw = v