quo;</dt>
<dd><p>Generate pts.
</p></dd>
<dt>&lsquo;<samp>-sync <var>type</var></samp>&rsquo;</dt>
<dd><p>Set the master clock to audio (<code>type=audio</code>), video
(<code>type=video</code>) or external (<code>type=ext</code>). Default is audio. The
master clock is used to control audio-video synchronization. Most media
players use audio as master clock, but in some cases (streaming or high
quality broadcast) it is necessary to change that. This option is mainly
used for debugging purposes.
</p></dd>
<d