int several playback statistics, in particular show the stream
duration, the codec parameters, the current position in the stream and
the audio/video synchronisation drift. It is on by default, to
explicitly disable it you need to specify <code>-nostats</code>.
</p>
</dd>
<dt><samp>-fast</samp></dt>
<dd><p>Non-spec-compliant optimizations.
</p></dd>
<dt><samp>-genpts</samp></dt>
<dd><p>Generate pts.
</p></dd>
<dt><samp>-sync <var>type</var></samp></dt>
<dd><p>Set the master clock to audio (<code>type=audio<