        the testGopSize function in the tests/</span>
0151 <span class="comment">%                                   subdirectory (NOTE: very few DirectShow</span>
0152 <span class="comment">%                                   codecs support it).</span>
0153 <span class="comment">%</span>
0154 <span class="comment">%     maxBFrames        X           For MPEG codecs, gives the max</span>
0155 <span class="comment">%                                   number of bidirectional frames in a</span>
0156 <spa