<div dir="ltr">Thanks Sebastian, I am interest in your implementation. <div><br></div><div>As for point 3, this is a sample SDP info (the last three lines are optional):<div><br></div><div>v=0</div><div>o=- 1 0 IN IP4 169.254.19.237</div><div>s=Session Test Name</div><div>t=0 0</div><div>a=clock-domain:PTPv2 0</div><div>m=audio 5004 RTP/AVP 98</div><div>c=IN IP4 <a href="http://232.249.178.198/1" target="_blank">232.249.178.198/1</a></div><div>a=rtpmap:98 L24/44100/8</div><div>a=sync-time:0</div><div>a=framecount:32-64</div><div>a=ptime:1.4512471</div><div>a=mediaclk:direct=0</div><div><br></div><div>a=maxptime:1.4512471</div><div>a=udp-src:8554</div><div>a=rtcp:5005</div><div><br></div><div>The ptime attribute indicates the preferred packet time (= framecount * 1000 / samplingFrequency)</div><div>Some documentation is here:</div><div><br></div><div><a href="http://s10552c2bc54233da.jimcontent.com/download/version/1443433736/module/11950353523/name/RAVENNA___AES67_V1.0.pdf" target="_blank">http://s10552c2bc54233da.jimcontent.com/download/version/1443433736/module/11950353523/name/RAVENNA___AES67_V1.0.pdf</a></div><div><br></div><div>In general, it would be nice also to let one specify:</div><div>RTP port number = even number (e.g. 5004)</div><div>RTCP port number = RTP port number + 1 (e.g. 5005)</div><div>TTL time-to-live (e.g. 1)</div><div>UDP port numbr (e.g. 8554)</div><div><br></div><div>Regards</div><div>Roberto</div><div><br><div class="gmail_extra"><div class="gmail_quote">On Sat, Dec 5, 2015 at 11:46 PM, Sebastian Dröge <span dir="ltr"><<a href="mailto:sebastian@centricular.com" target="_blank">sebastian@centricular.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><span>On Sa, 2015-12-05 at 21:19 +0100, Roberto Grossi wrote:<br>
> <br>
> 1. Does gst-rtsp-server already include the support for PTPv2? <br>
<br>
</span>Since 1.6 we have PTP support, and you can use a PTP clock in gst-rtsp-<br>
server like any other clock.<br>
<span><br>
> 2. Can I slave the RTP timestamps of gst-rtsp-server to the DAC (the<br>
> grandmaster) using PTPv2 domain 0?<br>
<br>
</span>Not yet, at least not in a way that is discoverable by the client. But<br>
I'm currently implementing the missing bits. Most notably RFC7273<br>
support.<br>
<span><br>
> 3. Can I customize the SDP info, as required by Ravenna/AES67?<br>
<br>
</span>Which customisation do you mean?<br>
<span><font color="#888888"><br>
--<br>
Sebastian Dröge, Centricular Ltd · <a href="http://www.centricular.com" rel="noreferrer" target="_blank">http://www.centricular.com</a><br></font></span><br></blockquote></div></div></div></div></div>