<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div><blockquote type="cite" class=""><div class=""><div dir="ltr" class=""><div class="gmail_default" style="font-family:'courier new',monospace;font-size:small;color:rgb(68,68,68)">I met another bug about dealing with range time.</div><div class="gmail_default" style="font-family:'courier new',monospace;font-size:small;color:rgb(68,68,68)">Version: <a href="http://www.live555.com/liveMedia/public/live.2014.12.09.tar.gz" style="font-family:arial,sans-serif" class="">live.2014.12.09.tar.gz</a></div><div class="gmail_default" style="font-family:'courier new',monospace;font-size:small;color:rgb(68,68,68)">File: RTSPServer.cpp line: 1954 code:</div><div class="gmail_default" style=""><font color="#444444" face="courier new, monospace" class="">fStreamStates[i].subsession->seekStream(fOurSessionId, fStreamStates[i].streamToken, absStart, absEnd);</font><br class=""></div><div class="gmail_default" style=""><font color="#444444" face="courier new, monospace" class=""><br class=""></font></div><div class="gmail_default" style=""><font color="#444444" face="courier new, monospace" class="">the </font><span style="color:rgb(68,68,68);font-family:'courier new',monospace" class="">absStart </span><font color="#444444" face="courier new, monospace" class="">and </font><span style="color:rgb(68,68,68);font-family:'courier new',monospace" class="">absEnd </span><span style="color:rgb(68,68,68);font-family:'courier new',monospace" class="">will be freed(deleted) in File: OnDemandServerMediaSubsession.cpp line: 361</span></div></div></div></blockquote><div><br class=""></div>You’re misunderstanding the code. This is the *default version* of the “seekStreamSource()†virtual function - i.e., the version that gets called if you don’t explicitly implement seeking in your own subclass of “OnDemandServerMediaSubsessionâ€. If you don’t override (i.e., implement your own version of) the “seekStreamSource()†virtual function (note, BTW, that there are two forms of this function - one for seeking by NPT (‘normal play time’); another for seeking by absolute time), then this default version of the function will get called, and the RTSP response will have a “range: 0-0†header, to show that the server (by default) does not implement seeking.</div><div><br class=""></div><div>Therefore, to implement seeking by absolute time, your subclass of “OnDemandServerMediaSubsession†must reimplement the “seekStreamSource()†virtual function (the second version - the version that supports seeking by absolute time - if that’s what you want to do).</div><div><br class=""></div><div>See</div><div><span class="Apple-tab-span" style="white-space:pre"> </span><a href="http://live555.com/liveMedia/faq.html#trick-mode" class="">http://live555.com/liveMedia/faq.html#trick-mode</a></div><div>(although that web page mentions only the first (NPT, i.e., ‘normal play time’) version of “seekStreamSource()â€, because most developers want to implement only seeking by NPT).</div><br class=""><br class=""><div apple-content-edited="true" class="">
<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 class="">Live Networks, Inc.<br class=""><a href="http://www.live555.com/" class="">http://www.live555.com/</a></span></span>
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