Re: [OpenSIPStack] GIPs integration to OpenSIPStack
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Re: [OpenSIPStack] GIPs integration to OpenSIPStack
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From: <jo...@op...> - 2008-08-13 10:11:42
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If GIPs has its own RTP and media input/output channels, would GIPS be willing to share it with other codecs as well if SDP negotiation ended up with a none-GIPS codec? If not, then you wouldn't be able to re-use the SoftPhone classes and instead implement your own subclass of CallSession and CallSessionManager. If GIPS RTP and Audio Channels are exposed to other codecs, then it would be doable by merely replacing RTP_UDPSession with the GIPS counterpart and a GIPS wrapper to PSoundChannel. Manoj Kumar Joshi wrote: > 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 > > > > ------------------------------------------------------------------------- > 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: 270.6.1/1608 - Release Date: 8/12/2008 4:59 PM > > > > |
