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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1663/">https://reviewboard.asterisk.org/r/1663/</a>
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<p style="margin-top: 0;">On January 10th, 2012, 7:51 p.m., <b>Matt Jordan</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/1663/diff/1/?file=23038#file23038line2926" style="color: black; font-weight: bold; text-decoration: underline;">/branches/1.8/res/res_rtp_asterisk.c</a>
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(Diff revision 1)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int rtp_reload(int reload)</pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">2903</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">rtcpinterval</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">if</span> <span class="p">(</span><span class="n">rtcpinterval</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span></pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">2904</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">rtcpinterval</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="cm">/* Just so we're clear... it's zero */</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">rtcpinterval</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> <span class="cm">/* Just so we're clear... it's zero */</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Also, this is funny.</pre>
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<p>On January 10th, 2012, 10:42 p.m., <b>jrose</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Eh, that's RTCP. I don't think it has anything to do with what I'm working on.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">It is funny though, I have absolutely no clue why this code exists, but I'm guessing it was put there for a reason since it's commented and all.</pre>
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<p>- jrose</p>
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<p>On January 10th, 2012, 4:37 p.m., jrose wrote:</p>
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<div>Review request for Asterisk Developers, Kevin Fleming, Matt Jordan, and jcolp.</div>
<div>By jrose.</div>
<p style="color: grey;"><i>Updated Jan. 10, 2012, 4:37 p.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">The purpose of this patch is to resolve some problems that can occur with peers using a mix of directmedia=yes and no occuring between multiple asterisk servers when strictrtp is enabled in rtp.conf. When attempting to set the strictrtppeer during a reinvite, res_rtp_asterisk will ignore the requested sockaddr and instead set learning mode. Prior to this patch, learning mode would simply set the sockaddr owning the next related RTP packet received and then exit learning mode. Now, learning mode will track how many times a particular socket address sent rtp packets without being interrupted by another socket address until it reaches the learning mode hit threshold value (set in rtp.conf) and then resume closed mode.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I tested this against two scenarios with the following configurations... always with strictrtp=yes
s1
Phone 1 <-- DirectMedia=yes --> Asterisk 1 <-- DirectMedia=Yes --> Asterisk 2 <-- DirectMedia=No --> Phone 3
and
s2
Phone 1 <-- DirectMedia=yes --> Asterisk 1 <-- DirectMedia=Yes --> Phone 2
and then doing a blind transfer with:
Phone 2 <-- DirectMedia=yes --> Asterisk 1 <-- DirectMedia=Yes --> Asterisk 2 <-- DirectMedia=No --> Phone 3
Prior to this test, in s1 there would be one way audio from phone 3 to phone 1 because RTP coming from phone 1 would be rejected by Asterisk 2.
In s2, audio would work normally from phone 1 to phone 2, but after the transfer the result would be the same with one way audio from phone 3 to phone 1 due to rejected
packets from phone 1.
After this patch is applied, both of these scenarios worked as expected as long as I used a threshold above 3. Phones 1 and 3 were polycom SP430s while Phone 2 was a Grandstream GXP-2020.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/branches/1.8/configs/rtp.conf.sample <span style="color: grey">(350307)</span></li>
<li>/branches/1.8/res/res_rtp_asterisk.c <span style="color: grey">(350307)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1663/diff/" style="margin-left: 3em;">View Diff</a></p>
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