<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="FR" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US">Hello Ross,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I'm working at Thales with Yahia. I am writing to inform you that we have encountered two problems regarding SRTP.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">First, in method </span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">OnDemandServerMediaSubsession::sdpLines(int addressFamily)</span><span lang="EN-US"> if the following test
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">if (rtpSink != NULL && rtpSink->srtpROC() != fSRTP_ROC)</span><span lang="EN-US"> is true then a temporary sink is created. The problem is that the temporary sink changes the sink
in attribute </span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">fRTPSink</span><span lang="EN-US"> of
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">PresentationTimeSubsessionNormalizer</span><span lang="EN-US"> because of the line
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">ssNormalizer->setRTPSink(newSink)</span><span lang="EN-US"> in
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">ProxyServerMediaSubsession::createNewRTPSink(...)</span><span lang="EN-US">. Next in
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">PresentationTimeSessionNormalizer::normalizePresentationTime(PresentationTimeSubsessionNormalizer* ssNormalizer,...)</span><span lang="EN-US"> the temporary and deleted sink is modified
at line </span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">rtpSink->enableRTCPReports() = True;</span><span lang="EN-US">.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">In fact we have a subclass of</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New""> ProxyServerMediaSubsession</span><span lang="EN-US"> with a similar
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">createNewRTPSink</span><span lang="EN-US"> method.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The second is minor, there is </span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">delete fSDPLines</span><span lang="EN-US"> instead of
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">delete[]</span><span lang="EN-US"> in
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New"">OnDemandServerMediaSubsession::sdpLines(int addressFamily)</span><span lang="EN-US">.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal">Regards<o:p></o:p></p>
<p class="MsoNormal">Jean-Claude Saget<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>