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<p class="MsoNormal"><span style="font-size:11.0pt">Oops! Typo here…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">#2 should read …<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Do I need to also modify the </span>
<o:p></o:p></p>
<p class="p1" style="text-indent:.5in">increaseSendBufferTo<o:p></o:p></p>
<p class="p1">and<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> sysctl net.core.<b>wmem</b>_max =
<i>the_maximum_buffer_size_that_you_need</i></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">as well to match the receivebuffer ?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> <o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Shyam Kaundinya <shyam.kaundinya@digitalforcetech.com><br>
<b>Date: </b>Tuesday, August 28, 2018 at 8:07 AM<br>
<b>To: </b>"live-devel@lists.live555.com" <live-devel@lists.live555.com><br>
<b>Subject: </b>High bit-rate (CBR) 4K streaming over a wireless link ...<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
</div>
<p class="MsoNormal"><span style="font-size:11.0pt">Hi</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">My product involves streaming high bit rate (>15M) 4K video over a high-bit rate wireless link. I use LIVE555 proxy server on both sides. Based on reviewing the forum articles, I have made the following changes,
to accommodate the high bit rate and an unreliable link.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l2 level1 lfo6"><span style="font-size:11.0pt">I replaced all occurances of
</span><o:p></o:p></li></ol>
<p class="p1"><span class="apple-tab-span"> </span>increaseReceiveBufferTo<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">and</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> sysctl net.core.rmem_max =
<i>the_maximum_buffer_size_that_you_need</i></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">with a large size value.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Re: </span><i><span style="font-size:10.0pt;font-family:"Courier New";color:black">the_maximum_buffer_size_that_you_need</span></i><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">What’s a good value to use here for 4K CBR at high-bit rate (>15M) ? 4K max uncompressed size is = 4096*2160*3=26,542,080. That seems somewhat excessive. I am not sure if using any other value would just be
totally arbitrary. Is there a guaranteed minimum compression that a H.265 encoder can guarantee irrespective of what the scene is ? If so, I can arrive at my buffer size based on that information.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<ol style="margin-top:0in" start="2" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l2 level1 lfo6"><span style="font-size:11.0pt">Do I need to also modify the
</span><o:p></o:p></li></ol>
<p class="p1" style="text-indent:.5in">increaseSendBufferTo<o:p></o:p></p>
<p class="p1">and<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> sysctl net.core.rmem_max =
<i>the_maximum_buffer_size_that_you_need</i></span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">as well to match the receivebuffer ?</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<ol style="margin-top:0in" start="3" type="1">
<li class="MsoListParagraph" style="margin-left:-.25in;mso-list:l2 level1 lfo6"><span style="font-size:11.0pt">At times I see significant latency on the Rx side. But when I disconnect and reconnect the client, it seems to go away. If I leave it running, the
virtual memory used by live keeps on increasing steadily and then live crashes and exits. Any thoughts on what could cause this behavior ?</span><o:p></o:p></li></ol>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Regards</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Shyam</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
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