videosnarf will pull out G711 and H.264 and rebuild audio/video from pcap files.
><> Nathan Stratton CTO, BlinkMind, Inc. nathan at robotics.net nathan at blinkmind.com http://www.robotics.net http://www.blinkmind.com On Thu, 3 Nov 2011, Alexander, Andy (Andy) **CTR** wrote: > Many thanks guys - looks like I'll just have to use WireShark to > "playback" the received RTP. > > > > Andy Alexander | Engineering Field Support | Avaya | Wentworth Lodge | > Suite 3 | Great North Road | Welwyn Garden City | Hertfordshire | AL8 > 7SR > > Registered in England - 04965442 | Luxoft UK | 64 Southwark Bridge Road > | London | SE1 0AS > > ________________________________ > > From: James Van Vleet [mailto:ja...@bolderthinking.com] > Sent: 03 November 2011 13:03 > To: Greg Horton > Cc: Alexander, Andy (Andy) **CTR**; sipp-users@lists.sourceforge.net > Subject: Re: [Sipp-users] Is it possible to play received RTP packets? > > > > Yep. What he said. Sipp as far as I know has no real idea this is RTP > - it is just streaming out the contents of a packet capture. The > amount of coding to pull off what you describe would be major, > especially cross platform. > > > > > > -James > > > > On Thu, Nov 3, 2011 at 7:46 AM, Greg Horton <greg.hor...@dialogic.com> > wrote: > > There is a big difference between having SIPp play a .pcap file where it > does not have to care about the voice data contents of the outgoing RTP > packets vs. having SIPp decode the possibly compressed voice data in > incoming RTP packets and play them out in an audio stream that you can > listen to. Maybe someday for Wireshark or SIPp somebody may develop a > plugin that can immediately stream decoded RTP data out through system > audio drivers so you can listen in real-time. Until then I'd agree that > the best solution is to capture streams in Wireshark then use that > program's tools to either play directly from a capture buffer or save to > external .au or .raw format and play with another program. G711 is best > for that but there is also a G729 decoder available that can be matched > up with Wireshark traces. It's really not that laborious once you do it > a few times. > > > > Greg Horton > > Embedded Software Engineer > > > > Dialogic Research Inc. > 75 Perseverance Way > > Hyannis, MA 02601 USA > > Tel: 508 862 3591 <tel:508%20862%203591> > Email: greg.hor...@dialogic.com <mailto:briane.ritc...@dialogic.com> > Web: www.dialogic.com > > This e-mail is intended only for the named recipient(s) and may contain > information that is privileged, confidential and/or exempt from > disclosure under applicable law. No waiver of privilege, confidence or > otherwise is intended by virtue of communication via the internet. Any > unauthorized use, dissemination or copying is strictly prohibited. If > you have received this e-mail in error, or are not named as a recipient, > please immediately notify the sender and destroy all copies of this > e-mail. > > > > From: Alexander, Andy (Andy) **CTR** [mailto:aa...@avaya.com] > Sent: Thursday, November 03, 2011 7:11 AM > To: James Van Vleet > > > Cc: sipp-users@lists.sourceforge.net > Subject: Re: [Sipp-users] Is it possible to play received RTP packets? > > > > James, > > > > Thanks for the suggestion however this is quite laborious, is not real > time and only works when the RTP stream is encoded using G.711. > > > > I just wondered if there was any way to play the received RTP packets > via a SIPp function or if there was a Media application that I could run > on the PC and integrate with SIPp that would allow me to listen to the > received RTP packets in real time - as I can in the other direction with > the SIPp "Play_pcap_audio" function. > > > > Andy Alexander | Engineering Field Support | Avaya | Wentworth Lodge | > Suite 3 | Great North Road | Welwyn Garden City | Hertfordshire | AL8 > 7SR > > Registered in England - 04965442 | Luxoft UK | 64 Southwark Bridge Road > | London | SE1 0AS > > ________________________________ > > From: James Van Vleet [mailto:ja...@bolderthinking.com] > Sent: 01 November 2011 19:49 > To: Alexander, Andy (Andy) **CTR** > Cc: sipp-users@lists.sourceforge.net > Subject: Re: [Sipp-users] Is it possible to play received RTP packets? > > > > Assuming the media is g.711 you might want to just run wireshark > (http://www.wireshark.org/) on the sipp box, capture the packets and > play them using wireshark's decoder. > > > > -James > > > > On Tue, Nov 1, 2011 at 2:18 PM, Alexander, Andy (Andy) **CTR** > <aa...@avaya.com> wrote: > > Hi, > > > > Sorry if this is a silly question but I have just started to use SIPp to > try to simulate PBX problems from customer sites that use our equipment. > > > > Is it possible to play the received RTP packets through the PC speakers > when simulating a SIP connection with a SIPp script? > > > > I have managed to send RTP packets to the remote device (via > "play_pcap_audio") and can get the audio to come out of the phone that > initiated the call to my PC running my SIPp script. > > But how do I get the audio (RTP packets) from the phone to come out of > the PC speaker? > > > > I found references to "RTSP/RTP DirectShow Filters" which seems to imply > that you need to build the application for the desired platform from the > supplied code. > > > > Is there a "Media" Application that I can run on my Windows PC that will > play the received RTP packets but still allow my SIPp script to run? > > > > > > Sorry I am a technical support engineer and not a software engineer. > > > > I use Windows not Linux. > > > > Andy Alexander | Engineering Field Support | Avaya | Wentworth Lodge | > Suite 3 | Great North Road | Welwyn Garden City | Hertfordshire | AL8 > 7SR > > Registered in England - 04965442 | Luxoft UK | 64 Southwark Bridge Road > | London | SE1 0AS > > > > > ------------------------------------------------------------------------ > ------ > RSA® Conference 2012 > Save $700 by Nov 18 > Register now! > http://p.sf.net/sfu/rsa-sfdev2dev1 > _______________________________________________ > Sipp-users mailing list > Sipp-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/sipp-users > > > > > > ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Sipp-users mailing list Sipp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sipp-users
