Re: [OpenSIPStack] GIPs integration to OpenSIPStack
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Re: [OpenSIPStack] GIPs integration to OpenSIPStack
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From: Manoj K. J. <ma...@as...> - 2008-08-13 09:01:47
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Yes -----Original Message----- From: jo...@op... [mailto:joe...@gm...] Sent: Wednesday, August 13, 2008 2:26 PM To: ma...@as... Cc: ope...@li... Subject: Re: [OpenSIPStack] GIPs integration to OpenSIPStack GIPS has its own RTP Stack, audio input/output channels? Manoj Kumar Joshi wrote: > Dear Joegen, > > GIPS is not only a set of few codec rather it has its own media processing > system. The functions i specified in last email need to be called from > various points of opensipstack. If you can direct me from where all media > processing is done i will be able to understand better. > > In addition to that please also tell me following... > > >From what places Encryption related functions are being called (Like enable > encrytion, then encrypting and decrpting all SIP messages) Also if i > understand correctly threre is some key involved in order to encrypt RTP. If > you can plaese give me complete flow it will be a great help. > > Best Regards, > > Manoj > > -----Original Message----- > From: jo...@op... [mailto:joe...@gm...] > Sent: Wednesday, August 13, 2008 1:37 PM > To: ma...@as... > Cc: ope...@li... > Subject: Re: [OpenSIPStack] GIPs integration to OpenSIPStack > > > Manoj Kumar Joshi wrote: > >> Actually in my opinion i will have to do more than codec inclusion. I am >> > not > >> sure if you have seen GIPS functions..they way they use is... >> >> (When Softphone is Registered) >> - We create an instance of GIPS using Initialize function. >> (When a new call is initiated i.e. INVITE is about to sent) >> - We create a new channel >> - We specify RTP listen port (Same is sent in SIP SDP) >> (When Session progress comes) >> - We start listening to RTP port. >> - We start playing incoming media. >> - We set the "Send IP" and "Send port" (That comes in session progress >> > SDP) > >> (When 200 OK comes) >> - We start sending RTP to Mediaproxy IP and port >> (Hangup) >> - We close all channels. >> >> > > > As far as i can tell this will be done for you by the OpenSIPStack > subsystem. Just register your codec to it. I do not know anything > about GIPs but if its the same as all other codecs which basically has > the ability to expose, encode and decode methods, then all you need is > plug it in. > > > > >> I have included a PDF file with this email. In page 31 there is a table >> which explains above points more. In Page 29 there is provision to add >> Encryption scheme. >> >> As i understand i might need to touch more than codec part in opensipstack >> but you will know better than me. >> >> >> >> > > > I was under the impression that you are referring to the XOR encryption > of opensipstack. If its another proprietary encryption other than srtp, > then you will have to give more info how it works and probably I could > point you to the right place where to hack it in OpenSIPStack. > > > >> -----Original Message----- >> From: jo...@op... [mailto:joe...@gm...] >> Sent: Wednesday, August 13, 2008 5:27 AM >> To: ma...@as...; ope...@li... >> Subject: Re: [OpenSIPStack] GIPs integration to OpenSIPStack >> >> >> Manoj Kumar Joshi wrote: >> >> >>> Thanks for Replying joegen. I am on it already. What about ... >>> 1 - Starting Audio devices? >>> 2- Start/Stop RTP >>> >>> >>> >> Both these two should be seamless after you have successfully registered >> your codec. Unless, what you want is to rewrite everything and start >> from scratch? >> >> >>> I also need to understand how encryption is implemented as i would need >>> > to > >>> encrypt RTP also using same functions right? If i get an overall picture >>> >>> >> it >> >> >>> would be real easy for me to device some flowchart on paper and proceed >>> >>> >> with >> >> >>> work. >>> >>> >>> >> Encryption is implemented in rtp.cxx and Encryption.cxx >> >> RTP_Session::SendReceiveStatus RTP_UDP::ReadDataOrControlPDU() >> BOOL RTP_UDP::WriteData() >> BOOL RTP_UDP::WriteControl() >> >> This too should be seamless after you introduced your codec. >> >> >>> Regards, >>> >>> Manoj >>> >>> -----Original Message----- >>> From: jo...@op... [mailto:joe...@gm...] >>> Sent: Tuesday, August 12, 2008 6:57 PM >>> To: ma...@as...; ope...@li... >>> Subject: Re: [OpenSIPStack] GIPs integration to OpenSIPStack >>> >>> >>> The first thing you need to do is to implement your codec as a subclass >>> of OpalFramedTranscoder. You can check out how Speex is implemented >>> (speexcodec.h, speexcodec.cxx) and base you custom codec from there. >>> The next step is to call your codec registration macro in allcodecs.h. >>> >>> Manoj Kumar Joshi wrote: >>> >>> >>> >>>> Hello, >>>> >>>> I am looking forward to integrate GIPS media processing to opensipstack. >>>> Initially i want to incorporate it only on its Softphone interface and >>>> >>>> >>>> >>> build >>> >>> >>> >>>> ATLSip with it. >>>> >>>> I think i would need to make changes in SDP, Audio devices handling, >>>> Start/stop RTP and encryption. I tried to find some documentation on >>>> >>>> >>>> >>> openSBC >>> >>> >>> >>>> architecture but did not find much. Please give me some of your valuable >>>> directions on how should i start with this. >>>> >>>> Regards, >>>> >>>> Manoj >>>> >>>> >>>> ----------------------------------------------------------------------- - >>>> > - > >>>> This SF.Net email is sponsored by the Moblin Your Move Developer's >>>> >>>> >>>> >>> challenge >>> >>> >>> >>>> Build the coolest Linux based applications with Moblin SDK & win great >>>> >>>> >>>> >>> prizes >>> >>> >>> >>>> Grand prize is a trip for two to an Open Source event anywhere in the >>>> >>>> >>>> >>> world >>> >>> >>> >>>> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >>>> _______________________________________________ >>>> opensipstack-devel mailing list >>>> ope...@li... >>>> https://lists.sourceforge.net/lists/listinfo/opensipstack-devel >>>> >>>> >>>> No virus found in this incoming message. >>>> Checked by AVG - http://www.avg.com >>>> Version: 8.0.138 / Virus Database: 270.6.1/1605 - Release Date: >>>> > 8/11/2008 > >>>> >>> 4:59 PM >>> >>> >>> >>>> >>> -- >>> Internal Virus Database is out-of-date. >>> Checked by AVG. >>> Version: 7.5.524 / Virus Database: 270.5.12/1591 - Release Date: 8/4/2008 >>> 7:23 PM >>> >>> >>> >>> ------------------------------------------------------------------------ - >>> This SF.Net email is sponsored by the Moblin Your Move Developer's >>> >>> >> challenge >> >> >>> Build the coolest Linux based applications with Moblin SDK & win great >>> >>> >> prizes >> >> >>> Grand prize is a trip for two to an Open Source event anywhere in the >>> >>> >> world >> >> >>> http://moblin-contest.org/redirect.php?banner_id=100&url=/ >>> _______________________________________________ >>> opensipstack-devel mailing list >>> ope...@li... >>> https://lists.sourceforge.net/lists/listinfo/opensipstack-devel >>> >>> >>> No virus found in this incoming message. >>> Checked by AVG - http://www.avg.com >>> Version: 8.0.138 / Virus Database: 270.6.1/1605 - Release Date: 8/11/2008 >>> >>> >> 4:59 PM >> >> >>> >>> >> >> -- >> Internal Virus Database is out-of-date. >> Checked by AVG. >> Version: 7.5.524 / Virus Database: 270.5.12/1591 - Release Date: 8/4/2008 >> 7:23 PM >> >> >> > > > > -- > Internal Virus Database is out-of-date. > Checked by AVG. > Version: 7.5.524 / Virus Database: 270.5.12/1591 - Release Date: 8/4/2008 > 7:23 PM > > > > > -- Internal Virus Database is out-of-date. Checked by AVG. Version: 7.5.524 / Virus Database: 270.5.12/1591 - Release Date: 8/4/2008 7:23 PM |
