<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Perfect, thanks!<br class=""><div><div class="">On Jan 18, 2016, at 6:05 AM, Steven Ayre <<a href="mailto:steveayre@gmail.com" class="">steveayre@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">If you need to do it within FreeSWITCH (eg from a script), execute the uuid_set_media_stats api. This will set a number of variables that you can then read which'll reflect a number of RTP statistics. This will include the number of RTP frames/packets/bytes going in and out of the server for that call. That'll let you spot if a channel isn't receiving any RTP packets.<br class=""><div class="gmail_extra"><br class=""></div><div class="gmail_extra">To see what variables are set see the add_stat lines in src/switch_core_media.c:1470 set_stats(), the names will be prefixed between what appears in the code and the variable set for example "in_raw_bytes" => ${rtp_audio_in_raw_bytes}.</div><div class="gmail_extra"><br class=""></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On 18 January 2016 at 00:58, Dave Horton <span dir="ltr" class=""><<a href="mailto:dave@dchorton.com" target="_blank" class="">dave@dchorton.com</a>></span> wrote:<br class=""><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"><div style="word-wrap:break-word" class="">Well, my issue is that ‘complete silence’ could mean no RTP packets at all, or it could mean RTP packets arriving with all zeros, and I need to distinguish between the two scenarios. I read the recent issue regarding detecting speaker events in a conference to determine silence, so I suppose I instead of bridging I could put the two legs into conference and look for the lack of a ‘start talking’ event within some number of seconds. But I would prefer to sick with bridging the legs if possible. I am unclear about how the recording is going to look in the case where there is no RTP coming in, and whether I could really inspect the recording to know for sure whether or not I am receiving packets….<span class=""><font color="#888888" class=""><div class=""><br class=""></div></font></span><div class=""><span class=""><font color="#888888" class="">Dave</font></span><div class=""><div class=""><br class=""><div class=""><br class=""></div><div class=""><br class=""><div class=""><div class="">On Jan 17, 2016, at 5:29 PM, Stanislav Sinyagin <<a href="mailto:ssinyagin@gmail.com" target="_blank" class="">ssinyagin@gmail.com</a>> wrote:</div><br class=""><div class=""><div dir="ltr" class=""><div class="">you can, for example, start a recording within a running session, run it for 10 seconds, and then build a histogram using SOX. You would then easily distinguish a complete silence from speech.<br class=""><br class=""></div>Also at the end of a call, you can get the RTP statistics in channel variables before it gets destroyed, so you can extract the number of RTP packets received.<br class=""><br class=""><br class=""></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Sun, Jan 17, 2016 at 11:17 PM, Dave Horton <span dir="ltr" class=""><<a href="mailto:dave@dchorton.com" target="_blank" class="">dave@dchorton.com</a>></span> wrote:<br class=""><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">I have a need to bridge two channels together and then somehow verify that I am getting RTP packets from both directions. The need stems from a desire to detect a one-way audio situation in rare nat’ed scenarios where signaling gets established but one party may have restrictive firewall rules preventing his/her RTP stream from reaching the FS endpoint. Any ideas?<br class="">
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