<html><head><base href="x-msg://2316/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; 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; font-size: medium; "><div fpstyle="1" ocsi="0" style="word-wrap: break-word; "><div style="direction: ltr; font-family: Tahoma; color: rgb(0, 0, 0); font-size: 10pt; "><div style="font-family: 'Times New Roman'; color: rgb(0, 0, 0); font-size: 16px; "><div><p class="MsoNormal" style="margin-top: 0in; margin-bottom: 10pt; margin-right: 0in; margin-left: 0in; "><font face="Calibri">I've built a RTSP client using your library, so my question is related to what information that is passed from the server to the client. When I stream an archive file (i.e. non-live) from a RTSP-server ("Cisco Video Surveillance Media Server" in this case) it would great to be able to get a timestamp indicating when it was recorded. For live streams such a field would of course be the current server time. Is there any other timestamp available at all besides presentation time?</font></p><div><br></div></div></div></div></div></span></blockquote><div><br></div>No. (And even the presentation time should be considered, by the client, to be only a 'relative' time stamp - not an absolute time in any time scale.)</div><div><br></div><div>However, depending upon the specific codec(s) that you are using, it *might* be possible to embed extra information (such as a different kind of timestamp) within the encoded media itself (i.e., invisible to RTP or our software).</div><div><br></div><div>Plus, of course, the server could put (static, one-time) information into the stream's SDP description (e.g., the "i=" or "s=" lines). if so, then this information would be available to your client.</div><div><br></div><div>But in either case, this depends upon whatever the server decides to do.</div><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; font-size: medium; "><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; font-size: medium; ">Ross Finlayson<br>Live Networks, Inc.<br><a href="http://www.live555.com/">http://www.live555.com/</a></span></span>
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