<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial">Hi Ross,<div><span class="Apple-tab-span" style="white-space:pre">  </span> I read the faq in live555 website about the trick play, it only said the four virtual functions needs to be supported. </div><div><span class="Apple-tab-span" style="white-space:pre">   </span>But as the result,  the vlc would drop audio buffer, so I guess  the fPresentationTime should be changed too?</div><div><span class="Apple-tab-span" style="white-space:pre">      </span>Is it right?</div></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>