m.file</a></span><span class="op">(</span><span class="st">"sample_vid/Balloon.mp4"</span>, package <span class="op">=</span> <span class="st">"Rvision"</span><span class="op">)</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="va">buf</span> <span class="op">&lt;-</span> <span class="fu"><a href="Queue-class.html">queue</a></span><span class="op">(</span><span class="va">balloon</span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu">isQueue