[Freeswitch-dev] Recoding G729 raw payload in FreeSWITCH and G729 decoding
Hi FreeSWITCHers, 1) FreeSWITCH support G729 codec in passthrough mode, it is normally engough if both call-legs suport G729. But there is no way to do recording if you can't decode it. I wrote a small module called mod_recpld. The idea is to record the raw payload in rtp packets to files, and decode them into 3rd party converters. See details at: http://code.google.com/p/mod-recpld/ 2) EasyG729A implemented by http://imtelephone.com can be free of use on research purpose, I made a wrapper so it can be used in FreeSWITCH. See deatila at: http://code.google.com/p/libg729/ The code is not good but just works. BTW, I think it maybe easy to store codes on FreeSWITCH svn than on google code, how can I become a developer? Can I get a svn access on svn.freeswitch.org and own a branch?
I was just thinking about something like this the other day. My idea was to record calls as pcap files for debugging purposes. The ability to play back an RTP stream from within a pcap file could be very useful for reproducing customer issues. You could either record one RTP stream per pcap or stuff both streams into the pcap, and possibly even the sip signaling. I've used sipp to play back pcap files in the past to reproduce polycom bugs. You must give it a pcap file containing a single rtp stream. Sent from my iPhone On Jan 21, 2009, at 11:30 PM, seven du <seven@idapted.com> wrote:
Hi FreeSWITCHers,
1) FreeSWITCH support G729 codec in passthrough mode, it is normally engough if both call-legs suport G729. But there is no way to do recording if you can't decode it. I wrote a small module called mod_recpld. The idea is to record the raw payload in rtp packets to files, and decode them into 3rd party converters.
See details at: http://code.google.com/p/mod-recpld/
2) EasyG729A implemented by http://imtelephone.com can be free of use on research purpose, I made a wrapper so it can be used in FreeSWITCH.
See deatila at: http://code.google.com/p/libg729/
The code is not good but just works.
BTW, I think it maybe easy to store codes on FreeSWITCH svn than on google code, how can I become a developer? Can I get a svn access on svn.freeswitch.org and own a branch?
_______________________________________________ Freeswitch-dev mailing list Freeswitch-dev@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-dev http://www.freeswitch.org
Thank you Jason. I think there is a tools called pcapsipdump can do the job you described. Though it is not in FreeSWITCH, I think it's enough for debugging purpose. The mod_recpld, not a good name though, is written to tight with FS and give a standard command line interface like "record". BTW, I'm also thinking to record all RTP stream, for debugging and statistic purpose, but haven't figured out how easy/hard to do that. The idea is just like that: http://lists.freeswitch.org/pipermail/freeswitch-dev/2009-January/001789.htm... Seven On Jan 26, 2009, at 8:30 PM, Jason Garland wrote:
I was just thinking about something like this the other day. My idea was to record calls as pcap files for debugging purposes. The ability to play back an RTP stream from within a pcap file could be very useful for reproducing customer issues. You could either record one RTP stream per pcap or stuff both streams into the pcap, and possibly even the sip signaling. I've used sipp to play back pcap files in the past to reproduce polycom bugs. You must give it a pcap file containing a single rtp stream.
Sent from my iPhone
On Jan 21, 2009, at 11:30 PM, seven du <seven@idapted.com> wrote:
Hi FreeSWITCHers,
1) FreeSWITCH support G729 codec in passthrough mode, it is normally engough if both call-legs suport G729. But there is no way to do recording if you can't decode it. I wrote a small module called mod_recpld. The idea is to record the raw payload in rtp packets to files, and decode them into 3rd party converters.
See details at: http://code.google.com/p/mod-recpld/
2) EasyG729A implemented by http://imtelephone.com can be free of use on research purpose, I made a wrapper so it can be used in FreeSWITCH.
See deatila at: http://code.google.com/p/libg729/
The code is not good but just works.
BTW, I think it maybe easy to store codes on FreeSWITCH svn than on google code, how can I become a developer? Can I get a svn access on svn.freeswitch.org and own a branch?
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I've looked at pcapsipdump and filed several bugs with that project on sourceforge. It only does UDP SIP, and only works on port 5060. It does not understand image or video codecs in the SDP. Sent from my iPhone On Jan 26, 2009, at 9:25 PM, seven du <seven@idapted.com> wrote:
Thank you Jason.
I think there is a tools called pcapsipdump can do the job you described. Though it is not in FreeSWITCH, I think it's enough for debugging purpose. The mod_recpld, not a good name though, is written to tight with FS and give a standard command line interface like "record".
BTW, I'm also thinking to record all RTP stream, for debugging and statistic purpose, but haven't figured out how easy/hard to do that. The idea is just like that: http://lists.freeswitch.org/pipermail/freeswitch-dev/2009-January/001789.htm...
Seven
On Jan 26, 2009, at 8:30 PM, Jason Garland wrote:
I was just thinking about something like this the other day. My idea was to record calls as pcap files for debugging purposes. The ability to play back an RTP stream from within a pcap file could be very useful for reproducing customer issues. You could either record one RTP stream per pcap or stuff both streams into the pcap, and possibly even the sip signaling. I've used sipp to play back pcap files in the past to reproduce polycom bugs. You must give it a pcap file containing a single rtp stream.
Sent from my iPhone
On Jan 21, 2009, at 11:30 PM, seven du <seven@idapted.com> wrote:
Hi FreeSWITCHers,
1) FreeSWITCH support G729 codec in passthrough mode, it is normally engough if both call-legs suport G729. But there is no way to do recording if you can't decode it. I wrote a small module called mod_recpld. The idea is to record the raw payload in rtp packets to files, and decode them into 3rd party converters.
See details at: http://code.google.com/p/mod-recpld/
2) EasyG729A implemented by http://imtelephone.com can be free of use on research purpose, I made a wrapper so it can be used in FreeSWITCH.
See deatila at: http://code.google.com/p/libg729/
The code is not good but just works.
BTW, I think it maybe easy to store codes on FreeSWITCH svn than on google code, how can I become a developer? Can I get a svn access on svn.freeswitch.org and own a branch?
_______________________________________________ Freeswitch-dev mailing list Freeswitch-dev@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-dev UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch- dev http://www.freeswitch.org
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participants (2)
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Jason Garland
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seven du