title: What does this H264 NAL Header Mean?
body: <pre><code>0000 0109 1000 0001 6742 0020 e900 800c
  3200 0001 68ce 3c80 0000 0001 6588 801a
  </code></pre>
  
  <p>As far as I know, <strong>0000 01</strong> is the start prefix code to identify a NAL Unit.  What does "09 .... " mean?  Is it the header type byte?</p>