<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div><blockquote type="cite"><div style="line-height: 1.7; font-size: 14px; font-family: arial;"><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></blockquote><div><br></div></div>The "presentation time" represents the time at which the media should be 'presented' (i.e., displayed or played) to a receiver. So, of course, you need to make sure that it's aligned with 'wall clock time', even if you are doing fast-forward or reverse-play. E.g., if you're doing fast-forward 2x, your server's presentation times should *not* increase 2x as fast as normal.<br><br><div apple-content-edited="true">
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">Ross Finlayson<br>Live Networks, Inc.<br><a href="http://www.live555.com/">http://www.live555.com/</a></span></span>
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