Nabble - Gnu - ccRTP - Dev

Re: dccp

2009-10-28T02:39:23Z

Hi Leandro,

sorry for responding so late. I integrated your code into the
ccRTP-library and got it compiled and installed. There was only one
small problem: your classes RTPBaseDCCPIPv4Socket and
RTPBaseDCCPIPv6Socket do have the member-function available() which
calls a static member function available() of the DCCPSocket class of
the common cpp library which doesn't exist. Since available() was
called nowhere in your patch nor in your client-server example I just
took it out. After that the patched library compiled and installed
perfectly fine. What was availabe() supposed to do?

Thank you
Patrick

Zitat von Leandro Sales <leandroal@...>:

> Hi Patrick and others,
> any progress on this?
>
> Thank you,
> Leandro.
>
> On Tue, Oct 20, 2009 at 9:33 AM, David Sugar <dyfet@...> wrote:
>> Once they are tested out and confirmed, we can produce a new release
>> with them.
>>
>> Patrick Schreiner wrote:
>>> Hi @all,
>>> thank you for the patches. I'll get right to work trying to apply them.
>>> Of course I will let you know if I have made any progress.
>>>
>>> Thanks again for all your help!
>>> Patrick
>>>
>>> Zitat von Ivo Calado <ivocalado@...>:
>>>
>>>> Hi Patrick and all,
>>>> the patch which enable DCCP on CcRTP is attached. Please, give us
>>>> feedback if you could merged it successfully.
>>>>
>>>> Thanks,
>>>> Ivo
>>>>
>>>>
>>>>
>>>> On Mon, Oct 19, 2009 at 13:01, Leandro Sales <leandroal@...> wrote:
>>>>> Hi Patrick,
>>>>> Ivo or Erivaldo will provide you the patches. Please, let us have
>>>>> feedbacks on this. Do you have write access to the CCRTP repository?
>>>>> if yes,
>>>>> please let me know because I can send you the patches by myself.
>>>>>
>>>>> Thanks,
>>>>> Leandro.
>>>>>
>>>>> On Mon, Oct 19, 2009 at 9:14 AM, Patrick Schreiner
>>>>> <patrick.schreiner@...> wrote:
>>>>>>
>>>>>> Hi Leandro,
>>>>>>
>>>>>> first of all thank you very much for extending cc++ with DCCP. This is
>>>>>> going to save me a lot of work and desperation. Do you think you
>>>>>> could send
>>>>>> me these patches so I could try merging them with the main project?
>>>>>>
>>>>>> Thanks
>>>>>> Patrick
>>>>>>
>>>>>> Zitat von Leandro Sales <leandroal@...>:
>>>>>>
>>>>>>> Hi Patrick,
>>>>>>> We from the Federal University of Campina Grande has provided
>>>>>>> support for dccp in commoncpp. We have also provided support for
>>>>>>> ccrtp, but the code wasn't (still) merged in the mainline of the
>>>>>>> project. We've submitted the patches to the ccrtp guys, but after they
>>>>>>> confirm they received the patches, until this moment, they didn't
>>>>>>> confirm the merge, probably they are busy.
>>>>>>>
>>>>>>> []s
>>>>>>>
>>>>>>> On 10/19/09, Patrick Schreiner
>>>>>>> <patrick.schreiner@...> wrote:
>>>>>>>>
>>>>>>>> Hi @all,
>>>>>>>>
>>>>>>>> my name is Patrick Schreiner and I am a student at the university of
>>>>>>>> Tübingen.
>>>>>>>> I'm trying to give proof of concept for a VoIP client which can adapt
>>>>>>>> to net bandwidth and adjust the algorithmic delay used by its codec.
>>>>>>>> Since common c++ supports DCCP sockets since version 1.7.1 I
>>>>>>>> wanted to
>>>>>>>> ask if anyone has already extended ccRTP to also support DCCP. Or if
>>>>>>>> no one has done that yet, if anyone could give me a little
>>>>>>>> jump-start.
>>>>>>>> My understandig up to now is, that I would have to extend the
>>>>>>>> channel.h by the class RTPBaseDCCPIPv4Socket. But how would have a
>>>>>>>> DualRTPChannel class for DCCP to look like? I'll appreciate any help
>>>>>>>> you can give me.
>>>>>>>>
>>>>>>>> Thanks in advance,
>>>>>>>> Patrick Schreiner
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Ccrtp-devel mailing list
>>>>>>>> Ccrtp-devel@...
>>>>>>>> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Sent from my mobile device
>>>>>>>
>>>>>>> Leandro Melo de Sales
>>>>>>> Pervasive and Embedded Computing Laboratory
>>>>>>> Professor in Computer Science at Federal University of Alagoas, Brazil
>>>>>>> PhD candidate in Computer Science at UFCG
>>>>>>>
>>>>>>> "The warrior is strong in loyalty, intensity, determination,
>>>>>>> initiative, persistence, courage and willpower. The warrior is light
>>>>>>> in the soul, self-trust and compassion. The warrior is often called to
>>>>>>> take the front when other cowardly make a step backwards. There are
>>>>>>> warriors on the battlefields and in everyday life."
>>>>>>>
>>>>>>> http://www.leandrosales.com/
>>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Leandro Melo de Sales
>>>>> Pervasive and Embedded Computing Laboratory
>>>>> Professor in Computer Science at Federal University of Alagoas, Brazil
>>>>> PhD candidate in Computer Science at UFCG
>>>>>
>>>>> "The warrior is strong in loyalty, intensity, determination, initiative,
>>>>> persistence, courage and willpower. The warrior is light in the soul,
>>>>> self-trust and compassion. The warrior is often called to take the front
>>>>> when other cowardly make a step backwards. There are warriors on the
>>>>> battlefields and in everyday life."
>>>>>
>>>>> http://www.leandrosales.com/
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Ivo Augusto Andrade Rocha Calado
>>>> MSc. Candidate
>>>> Embedded Systems and Pervasive Computing Lab -
>>>> http://embedded.ufcg.edu.br
>>>> Systems and Computing Department - http://www.dsc.ufcg.edu.br
>>>> Electrical Engineering and Informatics Center -
>>>> http://www.ceei.ufcg.edu.br
>>>> Federal University of Campina Grande - http://www.ufcg.edu.br
>>>>
>>>> PGP: 0x03422935
>>>> Quidquid latine dictum sit, altum viditur.
>>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Ccrtp-devel mailing list
>>> Ccrtp-devel@...
>>> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>>
>> _______________________________________________
>> Ccrtp-devel mailing list
>> Ccrtp-devel@...
>> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>>
>>
>
>
>
> --
> Leandro Melo de Sales
> Pervasive and Embedded Computing Laboratory
> Professor in Computer Science at Federal University of Alagoas, Brazil
> PhD candidate in Computer Science at UFCG
>
> "The warrior is strong in loyalty, intensity, determination,
> initiative, persistence, courage and willpower. The warrior is light
> in the soul, self-trust and compassion. The warrior is often called to
> take the front when other cowardly make a step backwards. There are
> warriors on the battlefields and in everyday life."
>
> http://www.leandrosales.com/
>

_______________________________________________
Ccrtp-devel mailing list
Ccrtp-devel@...
http://lists.gnu.org/mailman/listinfo/ccrtp-devel

Re: dccp

2009-10-27T09:38:59Z

Hi Patrick and others,
any progress on this?

Thank you,
Leandro.

On Tue, Oct 20, 2009 at 9:33 AM, David Sugar <dyfet@...> wrote:

> Once they are tested out and confirmed, we can produce a new release
> with them.
>
> Patrick Schreiner wrote:
>> Hi @all,
>> thank you for the patches. I'll get right to work trying to apply them.
>> Of course I will let you know if I have made any progress.
>>
>> Thanks again for all your help!
>> Patrick
>>
>> Zitat von Ivo Calado <ivocalado@...>:
>>
>>> Hi Patrick and all,
>>> the patch which enable DCCP on CcRTP is attached. Please, give us
>>> feedback if you could merged it successfully.
>>>
>>> Thanks,
>>> Ivo
>>>
>>>
>>>
>>> On Mon, Oct 19, 2009 at 13:01, Leandro Sales <leandroal@...> wrote:
>>>> Hi Patrick,
>>>> Ivo or Erivaldo will provide you the patches. Please, let us have
>>>> feedbacks on this. Do you have write access to the CCRTP repository?
>>>> if yes,
>>>> please let me know because I can send you the patches by myself.
>>>>
>>>> Thanks,
>>>> Leandro.
>>>>
>>>> On Mon, Oct 19, 2009 at 9:14 AM, Patrick Schreiner
>>>> <patrick.schreiner@...> wrote:
>>>>>
>>>>> Hi Leandro,
>>>>>
>>>>> first of all thank you very much for extending cc++ with DCCP. This is
>>>>> going to save me a lot of work and desperation. Do you think you
>>>>> could send
>>>>> me these patches so I could try merging them with the main project?
>>>>>
>>>>> Thanks
>>>>> Patrick
>>>>>
>>>>> Zitat von Leandro Sales <leandroal@...>:
>>>>>
>>>>>> Hi Patrick,
>>>>>> We from the Federal University of Campina Grande has provided
>>>>>> support for dccp in commoncpp. We have also provided support for
>>>>>> ccrtp, but the code wasn't (still) merged in the mainline of the
>>>>>> project. We've submitted the patches to the ccrtp guys, but after they
>>>>>> confirm they received the patches, until this moment, they didn't
>>>>>> confirm the merge, probably they are busy.
>>>>>>
>>>>>> []s
>>>>>>
>>>>>> On 10/19/09, Patrick Schreiner
>>>>>> <patrick.schreiner@...> wrote:
>>>>>>>
>>>>>>> Hi @all,
>>>>>>>
>>>>>>> my name is Patrick Schreiner and I am a student at the university of
>>>>>>> Tübingen.
>>>>>>> I'm trying to give proof of concept for a VoIP client which can adapt
>>>>>>> to net bandwidth and adjust the algorithmic delay used by its codec.
>>>>>>> Since common c++ supports DCCP sockets since version 1.7.1 I
>>>>>>> wanted to
>>>>>>> ask if anyone has already extended ccRTP to also support DCCP. Or if
>>>>>>> no one has done that yet, if anyone could give me a little
>>>>>>> jump-start.
>>>>>>> My understandig up to now is, that I would have to extend the
>>>>>>> channel.h by the class RTPBaseDCCPIPv4Socket. But how would have a
>>>>>>> DualRTPChannel class for DCCP to look like? I'll appreciate any help
>>>>>>> you can give me.
>>>>>>>
>>>>>>> Thanks in advance,
>>>>>>> Patrick Schreiner
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Ccrtp-devel mailing list
>>>>>>> Ccrtp-devel@...
>>>>>>> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>>>>>>>
>>>>>>
>>>>>> --
>>>>>> Sent from my mobile device
>>>>>>
>>>>>> Leandro Melo de Sales
>>>>>> Pervasive and Embedded Computing Laboratory
>>>>>> Professor in Computer Science at Federal University of Alagoas, Brazil
>>>>>> PhD candidate in Computer Science at UFCG
>>>>>>
>>>>>> "The warrior is strong in loyalty, intensity, determination,
>>>>>> initiative, persistence, courage and willpower. The warrior is light
>>>>>> in the soul, self-trust and compassion. The warrior is often called to
>>>>>> take the front when other cowardly make a step backwards. There are
>>>>>> warriors on the battlefields and in everyday life."
>>>>>>
>>>>>> http://www.leandrosales.com/
>>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Leandro Melo de Sales
>>>> Pervasive and Embedded Computing Laboratory
>>>> Professor in Computer Science at Federal University of Alagoas, Brazil
>>>> PhD candidate in Computer Science at UFCG
>>>>
>>>> "The warrior is strong in loyalty, intensity, determination, initiative,
>>>> persistence, courage and willpower. The warrior is light in the soul,
>>>> self-trust and compassion. The warrior is often called to take the front
>>>> when other cowardly make a step backwards. There are warriors on the
>>>> battlefields and in everyday life."
>>>>
>>>> http://www.leandrosales.com/
>>>>
>>>
>>>
>>>
>>>
>>>
>>> --
>>> Ivo Augusto Andrade Rocha Calado
>>> MSc. Candidate
>>> Embedded Systems and Pervasive Computing Lab -
>>> http://embedded.ufcg.edu.br
>>> Systems and Computing Department - http://www.dsc.ufcg.edu.br
>>> Electrical Engineering and Informatics Center -
>>> http://www.ceei.ufcg.edu.br
>>> Federal University of Campina Grande - http://www.ufcg.edu.br
>>>
>>> PGP: 0x03422935
>>> Quidquid latine dictum sit, altum viditur.
>>>
>>
>>
>>
>> _______________________________________________
>> Ccrtp-devel mailing list
>> Ccrtp-devel@...
>> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>
> _______________________________________________
> Ccrtp-devel mailing list
> Ccrtp-devel@...
> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>
>

--
Leandro Melo de Sales
Pervasive and Embedded Computing Laboratory
Professor in Computer Science at Federal University of Alagoas, Brazil
PhD candidate in Computer Science at UFCG

"The warrior is strong in loyalty, intensity, determination,
initiative, persistence, courage and willpower. The warrior is light
in the soul, self-trust and compassion. The warrior is often called to
take the front when other cowardly make a step backwards. There are
warriors on the battlefields and in everyday life."

http://www.leandrosales.com/

_______________________________________________
Ccrtp-devel mailing list
Ccrtp-devel@...
http://lists.gnu.org/mailman/listinfo/ccrtp-devel

Re: dccp

2009-10-20T05:33:58Z

Once they are tested out and confirmed, we can produce a new release
with them.

Patrick Schreiner wrote:

> Hi @all,
> thank you for the patches. I'll get right to work trying to apply them.
> Of course I will let you know if I have made any progress.
>
> Thanks again for all your help!
> Patrick
>
> Zitat von Ivo Calado <ivocalado@...>:
>
>> Hi Patrick and all,
>> the patch which enable DCCP on CcRTP is attached. Please, give us
>> feedback if you could merged it successfully.
>>
>> Thanks,
>> Ivo
>>
>>
>>
>> On Mon, Oct 19, 2009 at 13:01, Leandro Sales <leandroal@...> wrote:
>>> Hi Patrick,
>>> Ivo or Erivaldo will provide you the patches. Please, let us have
>>> feedbacks on this. Do you have write access to the CCRTP repository?
>>> if yes,
>>> please let me know because I can send you the patches by myself.
>>>
>>> Thanks,
>>> Leandro.
>>>
>>> On Mon, Oct 19, 2009 at 9:14 AM, Patrick Schreiner
>>> <patrick.schreiner@...> wrote:
>>>>
>>>> Hi Leandro,
>>>>
>>>> first of all thank you very much for extending cc++ with DCCP. This is
>>>> going to save me a lot of work and desperation. Do you think you
>>>> could send
>>>> me these patches so I could try merging them with the main project?
>>>>
>>>> Thanks
>>>> Patrick
>>>>
>>>> Zitat von Leandro Sales <leandroal@...>:
>>>>
>>>>> Hi Patrick,
>>>>> We from the Federal University of Campina Grande has provided
>>>>> support for dccp in commoncpp. We have also provided support for
>>>>> ccrtp, but the code wasn't (still) merged in the mainline of the
>>>>> project. We've submitted the patches to the ccrtp guys, but after they
>>>>> confirm they received the patches, until this moment, they didn't
>>>>> confirm the merge, probably they are busy.
>>>>>
>>>>> []s
>>>>>
>>>>> On 10/19/09, Patrick Schreiner
>>>>> <patrick.schreiner@...> wrote:
>>>>>>
>>>>>> Hi @all,
>>>>>>
>>>>>> my name is Patrick Schreiner and I am a student at the university of
>>>>>> Tübingen.
>>>>>> I'm trying to give proof of concept for a VoIP client which can adapt
>>>>>> to net bandwidth and adjust the algorithmic delay used by its codec.
>>>>>> Since common c++ supports DCCP sockets since version 1.7.1 I
>>>>>> wanted to
>>>>>> ask if anyone has already extended ccRTP to also support DCCP. Or if
>>>>>> no one has done that yet, if anyone could give me a little
>>>>>> jump-start.
>>>>>> My understandig up to now is, that I would have to extend the
>>>>>> channel.h by the class RTPBaseDCCPIPv4Socket. But how would have a
>>>>>> DualRTPChannel class for DCCP to look like? I'll appreciate any help
>>>>>> you can give me.
>>>>>>
>>>>>> Thanks in advance,
>>>>>> Patrick Schreiner
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Ccrtp-devel mailing list
>>>>>> Ccrtp-devel@...
>>>>>> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>>>>>>
>>>>>
>>>>> --
>>>>> Sent from my mobile device
>>>>>
>>>>> Leandro Melo de Sales
>>>>> Pervasive and Embedded Computing Laboratory
>>>>> Professor in Computer Science at Federal University of Alagoas, Brazil
>>>>> PhD candidate in Computer Science at UFCG
>>>>>
>>>>> "The warrior is strong in loyalty, intensity, determination,
>>>>> initiative, persistence, courage and willpower. The warrior is light
>>>>> in the soul, self-trust and compassion. The warrior is often called to
>>>>> take the front when other cowardly make a step backwards. There are
>>>>> warriors on the battlefields and in everyday life."
>>>>>
>>>>> http://www.leandrosales.com/
>>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> Leandro Melo de Sales
>>> Pervasive and Embedded Computing Laboratory
>>> Professor in Computer Science at Federal University of Alagoas, Brazil
>>> PhD candidate in Computer Science at UFCG
>>>
>>> "The warrior is strong in loyalty, intensity, determination, initiative,
>>> persistence, courage and willpower. The warrior is light in the soul,
>>> self-trust and compassion. The warrior is often called to take the front
>>> when other cowardly make a step backwards. There are warriors on the
>>> battlefields and in everyday life."
>>>
>>> http://www.leandrosales.com/
>>>
>>
>>
>>
>>
>>
>> --
>> Ivo Augusto Andrade Rocha Calado
>> MSc. Candidate
>> Embedded Systems and Pervasive Computing Lab -
>> http://embedded.ufcg.edu.br
>> Systems and Computing Department - http://www.dsc.ufcg.edu.br
>> Electrical Engineering and Informatics Center -
>> http://www.ceei.ufcg.edu.br
>> Federal University of Campina Grande - http://www.ufcg.edu.br
>>
>> PGP: 0x03422935
>> Quidquid latine dictum sit, altum viditur.
>>
>
>
>
> _______________________________________________
> Ccrtp-devel mailing list
> Ccrtp-devel@...
> http://lists.gnu.org/mailman/listinfo/ccrtp-devel

[dyfet.vcf]

begin:vcard fn:David Sugar n:Sugar;David org:GNU Telephony email;internet:dyfet@... tel;work:+1 609 465 5336 url:http://www.gnutelephony.org version:2.1 end:vcard

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Re: dccp

2009-10-20T02:11:07Z

Hi @all,
thank you for the patches. I'll get right to work trying to apply
them. Of course I will let you know if I have made any progress.

Thanks again for all your help!
Patrick

Zitat von Ivo Calado <ivocalado@...>:

> Hi Patrick and all,
> the patch which enable DCCP on CcRTP is attached. Please, give us
> feedback if you could merged it successfully.
>
> Thanks,
> Ivo
>
>
>
> On Mon, Oct 19, 2009 at 13:01, Leandro Sales <leandroal@...> wrote:
>> Hi Patrick,
>> Ivo or Erivaldo will provide you the patches. Please, let us have
>> feedbacks on this. Do you have write access to the CCRTP repository? if yes,
>> please let me know because I can send you the patches by myself.
>>
>> Thanks,
>> Leandro.
>>
>> On Mon, Oct 19, 2009 at 9:14 AM, Patrick Schreiner
>> <patrick.schreiner@...> wrote:
>>>
>>> Hi Leandro,
>>>
>>> first of all thank you very much for extending cc++ with DCCP. This is
>>> going to save me a lot of work and desperation. Do you think you could send
>>> me these patches so I could try merging them with the main project?
>>>
>>> Thanks
>>> Patrick
>>>
>>> Zitat von Leandro Sales <leandroal@...>:
>>>
>>>> Hi Patrick,
>>>> We from the Federal University of Campina Grande has provided
>>>> support for dccp in commoncpp. We have also provided support for
>>>> ccrtp, but the code wasn't (still) merged in the mainline of the
>>>> project. We've submitted the patches to the ccrtp guys, but after they
>>>> confirm they received the patches, until this moment, they didn't
>>>> confirm the merge, probably they are busy.
>>>>
>>>> []s
>>>>
>>>> On 10/19/09, Patrick Schreiner
>>>> <patrick.schreiner@...> wrote:
>>>>>
>>>>> Hi @all,
>>>>>
>>>>> my name is Patrick Schreiner and I am a student at the university of
>>>>> Tübingen.
>>>>> I'm trying to give proof of concept for a VoIP client which can adapt
>>>>> to net bandwidth and adjust the algorithmic delay used by its codec.
>>>>> Since common c++ supports DCCP sockets since version 1.7.1 I wanted to
>>>>> ask if anyone has already extended ccRTP to also support DCCP. Or if
>>>>> no one has done that yet, if anyone could give me a little jump-start.
>>>>> My understandig up to now is, that I would have to extend the
>>>>> channel.h by the class RTPBaseDCCPIPv4Socket. But how would have a
>>>>> DualRTPChannel class for DCCP to look like? I'll appreciate any help
>>>>> you can give me.
>>>>>
>>>>> Thanks in advance,
>>>>> Patrick Schreiner
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Ccrtp-devel mailing list
>>>>> Ccrtp-devel@...
>>>>> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>>>>>
>>>>
>>>> --
>>>> Sent from my mobile device
>>>>
>>>> Leandro Melo de Sales
>>>> Pervasive and Embedded Computing Laboratory
>>>> Professor in Computer Science at Federal University of Alagoas, Brazil
>>>> PhD candidate in Computer Science at UFCG
>>>>
>>>> "The warrior is strong in loyalty, intensity, determination,
>>>> initiative, persistence, courage and willpower. The warrior is light
>>>> in the soul, self-trust and compassion. The warrior is often called to
>>>> take the front when other cowardly make a step backwards. There are
>>>> warriors on the battlefields and in everyday life."
>>>>
>>>> http://www.leandrosales.com/
>>>>
>>>
>>
>>
>>
>> --
>> Leandro Melo de Sales
>> Pervasive and Embedded Computing Laboratory
>> Professor in Computer Science at Federal University of Alagoas, Brazil
>> PhD candidate in Computer Science at UFCG
>>
>> "The warrior is strong in loyalty, intensity, determination, initiative,
>> persistence, courage and willpower. The warrior is light in the soul,
>> self-trust and compassion. The warrior is often called to take the front
>> when other cowardly make a step backwards. There are warriors on the
>> battlefields and in everyday life."
>>
>> http://www.leandrosales.com/
>>
>
>
>
>
>
> --
> Ivo Augusto Andrade Rocha Calado
> MSc. Candidate
> Embedded Systems and Pervasive Computing Lab - http://embedded.ufcg.edu.br
> Systems and Computing Department - http://www.dsc.ufcg.edu.br
> Electrical Engineering and Informatics Center - http://www.ceei.ufcg.edu.br
> Federal University of Campina Grande - http://www.ufcg.edu.br
>
> PGP: 0x03422935
> Quidquid latine dictum sit, altum viditur.
>

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Ccrtp-devel@...
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Re: dccp

2009-10-19T10:29:09Z

Hi Patrick and all,
the patch which enable DCCP on CcRTP is attached. Please, give us
feedback if you could merged it successfully.

Thanks,
Ivo

On Mon, Oct 19, 2009 at 13:01, Leandro Sales <leandroal@...> wrote:

> Hi Patrick,
> Ivo or Erivaldo will provide you the patches. Please, let us have
> feedbacks on this. Do you have write access to the CCRTP repository? if yes,
> please let me know because I can send you the patches by myself.
>
> Thanks,
> Leandro.
>
> On Mon, Oct 19, 2009 at 9:14 AM, Patrick Schreiner
> <patrick.schreiner@...> wrote:
>>
>> Hi Leandro,
>>
>> first of all thank you very much for extending cc++ with DCCP. This is
>> going to save me a lot of work and desperation. Do you think you could send
>> me these patches so I could try merging them with the main project?
>>
>> Thanks
>> Patrick
>>
>> Zitat von Leandro Sales <leandroal@...>:
>>
>>> Hi Patrick,
>>> We from the Federal University of Campina Grande has provided
>>> support for dccp in commoncpp. We have also provided support for
>>> ccrtp, but the code wasn't (still) merged in the mainline of the
>>> project. We've submitted the patches to the ccrtp guys, but after they
>>> confirm they received the patches, until this moment, they didn't
>>> confirm the merge, probably they are busy.
>>>
>>> []s
>>>
>>> On 10/19/09, Patrick Schreiner
>>> <patrick.schreiner@...> wrote:
>>>>
>>>> Hi @all,
>>>>
>>>> my name is Patrick Schreiner and I am a student at the university of
>>>> Tübingen.
>>>> I'm trying to give proof of concept for a VoIP client which can adapt
>>>> to net bandwidth and adjust the algorithmic delay used by its codec.
>>>> Since common c++ supports DCCP sockets since version 1.7.1 I wanted to
>>>> ask if anyone has already extended ccRTP to also support DCCP. Or if
>>>> no one has done that yet, if anyone could give me a little jump-start.
>>>> My understandig up to now is, that I would have to extend the
>>>> channel.h by the class RTPBaseDCCPIPv4Socket. But how would have a
>>>> DualRTPChannel class for DCCP to look like? I'll appreciate any help
>>>> you can give me.
>>>>
>>>> Thanks in advance,
>>>> Patrick Schreiner
>>>>
>>>>
>>>> _______________________________________________
>>>> Ccrtp-devel mailing list
>>>> Ccrtp-devel@...
>>>> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>>>>
>>>
>>> --
>>> Sent from my mobile device
>>>
>>> Leandro Melo de Sales
>>> Pervasive and Embedded Computing Laboratory
>>> Professor in Computer Science at Federal University of Alagoas, Brazil
>>> PhD candidate in Computer Science at UFCG
>>>
>>> "The warrior is strong in loyalty, intensity, determination,
>>> initiative, persistence, courage and willpower. The warrior is light
>>> in the soul, self-trust and compassion. The warrior is often called to
>>> take the front when other cowardly make a step backwards. There are
>>> warriors on the battlefields and in everyday life."
>>>
>>> http://www.leandrosales.com/
>>>
>>
>
>
>
> --
> Leandro Melo de Sales
> Pervasive and Embedded Computing Laboratory
> Professor in Computer Science at Federal University of Alagoas, Brazil
> PhD candidate in Computer Science at UFCG
>
> "The warrior is strong in loyalty, intensity, determination, initiative,
> persistence, courage and willpower. The warrior is light in the soul,
> self-trust and compassion. The warrior is often called to take the front
> when other cowardly make a step backwards. There are warriors on the
> battlefields and in everyday life."
>
> http://www.leandrosales.com/
>

--
Ivo Augusto Andrade Rocha Calado
MSc. Candidate
Embedded Systems and Pervasive Computing Lab - http://embedded.ufcg.edu.br
Systems and Computing Department - http://www.dsc.ufcg.edu.br
Electrical Engineering and Informatics Center - http://www.ceei.ufcg.edu.br
Federal University of Campina Grande - http://www.ufcg.edu.br

PGP: 0x03422935
Quidquid latine dictum sit, altum viditur.

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ccrtp_dccp.patch (38K) Download Attachment

Re: dccp

2009-10-19T09:01:11Z

Hi Patrick,
Ivo or Erivaldo will provide you the patches. Please, let us have feedbacks on this. Do you have write access to the CCRTP repository? if yes, please let me know because I can send you the patches by myself.

Thanks,
Leandro.

On Mon, Oct 19, 2009 at 9:14 AM, Patrick Schreiner <patrick.schreiner@...> wrote:

Hi Leandro,

first of all thank you very much for extending cc++ with DCCP. This is going to save me a lot of work and desperation. Do you think you could send me these patches so I could try merging them with the main project?

Thanks
Patrick

Zitat von Leandro Sales <leandroal@...>:

Hi Patrick,
We from the Federal University of Campina Grande has provided
support for dccp in commoncpp. We have also provided support for
ccrtp, but the code wasn't (still) merged in the mainline of the
project. We've submitted the patches to the ccrtp guys, but after they
confirm they received the patches, until this moment, they didn't
confirm the merge, probably they are busy.

[]s

On 10/19/09, Patrick Schreiner
<patrick.schreiner@...> wrote:

Hi @all,

my name is Patrick Schreiner and I am a student at the university of
Tübingen.
I'm trying to give proof of concept for a VoIP client which can adapt
to net bandwidth and adjust the algorithmic delay used by its codec.
Since common c++ supports DCCP sockets since version 1.7.1 I wanted to
ask if anyone has already extended ccRTP to also support DCCP. Or if
no one has done that yet, if anyone could give me a little jump-start.
My understandig up to now is, that I would have to extend the
channel.h by the class RTPBaseDCCPIPv4Socket. But how would have a
DualRTPChannel class for DCCP to look like? I'll appreciate any help
you can give me.

Thanks in advance,
Patrick Schreiner

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--
Sent from my mobile device

Leandro Melo de Sales
Pervasive and Embedded Computing Laboratory
Professor in Computer Science at Federal University of Alagoas, Brazil
PhD candidate in Computer Science at UFCG

"The warrior is strong in loyalty, intensity, determination,
initiative, persistence, courage and willpower. The warrior is light
in the soul, self-trust and compassion. The warrior is often called to
take the front when other cowardly make a step backwards. There are
warriors on the battlefields and in everyday life."

http://www.leandrosales.com/

--
Leandro Melo de Sales
Pervasive and Embedded Computing Laboratory
Professor in Computer Science at Federal University of Alagoas, Brazil
PhD candidate in Computer Science at UFCG

"The warrior is strong in loyalty, intensity, determination, initiative, persistence, courage and willpower. The warrior is light in the soul, self-trust and compassion. The warrior is often called to take the front when other cowardly make a step backwards. There are warriors on the battlefields and in everyday life."

http://www.leandrosales.com/

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Re: dccp

2009-10-19T05:14:49Z

Hi Leandro,

first of all thank you very much for extending cc++ with DCCP. This is
going to save me a lot of work and desperation. Do you think you could
send me these patches so I could try merging them with the main project?

Thanks
Patrick

Zitat von Leandro Sales <leandroal@...>:

> Hi Patrick,
> We from the Federal University of Campina Grande has provided
> support for dccp in commoncpp. We have also provided support for
> ccrtp, but the code wasn't (still) merged in the mainline of the
> project. We've submitted the patches to the ccrtp guys, but after they
> confirm they received the patches, until this moment, they didn't
> confirm the merge, probably they are busy.
>
> []s
>
> On 10/19/09, Patrick Schreiner
> <patrick.schreiner@...> wrote:
>> Hi @all,
>>
>> my name is Patrick Schreiner and I am a student at the university of
>> Tübingen.
>> I'm trying to give proof of concept for a VoIP client which can adapt
>> to net bandwidth and adjust the algorithmic delay used by its codec.
>> Since common c++ supports DCCP sockets since version 1.7.1 I wanted to
>> ask if anyone has already extended ccRTP to also support DCCP. Or if
>> no one has done that yet, if anyone could give me a little jump-start.
>> My understandig up to now is, that I would have to extend the
>> channel.h by the class RTPBaseDCCPIPv4Socket. But how would have a
>> DualRTPChannel class for DCCP to look like? I'll appreciate any help
>> you can give me.
>>
>> Thanks in advance,
>> Patrick Schreiner
>>
>>
>> _______________________________________________
>> Ccrtp-devel mailing list
>> Ccrtp-devel@...
>> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>>
>
> --
> Sent from my mobile device
>
> Leandro Melo de Sales
> Pervasive and Embedded Computing Laboratory
> Professor in Computer Science at Federal University of Alagoas, Brazil
> PhD candidate in Computer Science at UFCG
>
> "The warrior is strong in loyalty, intensity, determination,
> initiative, persistence, courage and willpower. The warrior is light
> in the soul, self-trust and compassion. The warrior is often called to
> take the front when other cowardly make a step backwards. There are
> warriors on the battlefields and in everyday life."
>
> http://www.leandrosales.com/
>

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Re: dccp

2009-10-19T03:05:34Z

Hi Patrick,
We from the Federal University of Campina Grande has provided
support for dccp in commoncpp. We have also provided support for
ccrtp, but the code wasn't (still) merged in the mainline of the
project. We've submitted the patches to the ccrtp guys, but after they
confirm they received the patches, until this moment, they didn't
confirm the merge, probably they are busy.

[]s

On 10/19/09, Patrick Schreiner
<patrick.schreiner@...> wrote:

> Hi @all,
>
> my name is Patrick Schreiner and I am a student at the university of
> Tübingen.
> I'm trying to give proof of concept for a VoIP client which can adapt
> to net bandwidth and adjust the algorithmic delay used by its codec.
> Since common c++ supports DCCP sockets since version 1.7.1 I wanted to
> ask if anyone has already extended ccRTP to also support DCCP. Or if
> no one has done that yet, if anyone could give me a little jump-start.
> My understandig up to now is, that I would have to extend the
> channel.h by the class RTPBaseDCCPIPv4Socket. But how would have a
> DualRTPChannel class for DCCP to look like? I'll appreciate any help
> you can give me.
>
> Thanks in advance,
> Patrick Schreiner
>
>
> _______________________________________________
> Ccrtp-devel mailing list
> Ccrtp-devel@...
> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>

--
Sent from my mobile device

Leandro Melo de Sales
Pervasive and Embedded Computing Laboratory
Professor in Computer Science at Federal University of Alagoas, Brazil
PhD candidate in Computer Science at UFCG

"The warrior is strong in loyalty, intensity, determination,
initiative, persistence, courage and willpower. The warrior is light
in the soul, self-trust and compassion. The warrior is often called to
take the front when other cowardly make a step backwards. There are
warriors on the battlefields and in everyday life."

http://www.leandrosales.com/

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dccp

2009-10-19T02:32:17Z

Hi @all,

my name is Patrick Schreiner and I am a student at the university of Tübingen.
I'm trying to give proof of concept for a VoIP client which can adapt
to net bandwidth and adjust the algorithmic delay used by its codec.
Since common c++ supports DCCP sockets since version 1.7.1 I wanted to
ask if anyone has already extended ccRTP to also support DCCP. Or if
no one has done that yet, if anyone could give me a little jump-start.
My understandig up to now is, that I would have to extend the
channel.h by the class RTPBaseDCCPIPv4Socket. But how would have a
DualRTPChannel class for DCCP to look like? I'll appreciate any help
you can give me.

Thanks in advance,
Patrick Schreiner

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Check in of ZRTP enhancements/fixes

2009-10-13T09:50:00Z

David,

during the weekend I fixed some small problems with
ZRTP and implemented th DH2048 mode as defined in the
ZRTP draft. The new version is 1.4.6 and is binary
compatible (API and ABI) with the previous 1.4 versions.

Would you be so kind and create a new distribution?

Regards,
Werner

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Need clarification on the license exception

2009-09-29T12:20:18Z

Firstly, as an FYI, I am getting DNS errors while trying to access the links at the Gnu site (http://www.gnu.org/software/ccrtp/)

They all seem to point to a url with ‘wiki’ as a prefix - "http://wiki.gnutelephony.org" and that doesn’t work

Ok, my question is on licensing. The license has an exception clause, basically for linking so that other software using this are excepted from the GPL licensing reciprocity.

“As a special exception, you may use this file as part of a free software library without restriction. Specifically, if other files instantiate templates or use macros or inline functions from this file, or you compile this file and link it with other files to produce an executable, this file does not by itself cause the resulting executable to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the executable file might be covered by the GNU General Public License.”

My question is about the scope of this exception, what does ‘as part of a free software library’ mean? Was the intent to only have ccRTP only work with other FOSS products? Other ‘free software’?

If we include ccRTP into a deliverable to US Gov, under a standard Gov purpose license, was that intended to be allowed?

(this wouldn’t be a general commercial software, but a specialized solution built for US Gov agency)

Please advise, we are trying to do the right thing by your intention

Allan Hardy

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Re:

2009-08-26T03:53:45Z

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how to compile the ccrtp in windows

2009-08-13T00:00:17Z

ccrtp-develhi,all
i am new to ccrtp and i want to use it to make a demo about rtp send/rece

i just download the ccrtp1.7.1,libzrtpcpp-1.4.5 and commoncpp2-1.7.3
then i put
commoncpp2/src --> ccrtp-1.7.1/w32/src
commoncpp2/inc/cc++ --> ccrtp-1.7.1/w32/include/cc++
commoncpp2/w32/cc++ --> ccrtp-1.7.1/w32/include/cc++
and there is no template folder in the commoncpp2

i open ccrtp-1.7.1\w32\msvcpp\ccrtp1.dsw, and compile it
but the result is
1 fatal error C1083: can not open source file:..\src\port.cpp: No such file or directory c1xx
6 fatal error C1083: can not open source file:..\src\fifo.cpp: No such file or directory c1xx

could you give me a help?

i used vs 2008 to compile it and my system is XP SP2

Bright
brightchen7@...
2009-08-05

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Re: ccRTP in the Asterisk

2009-08-10T06:31:19Z

It certainly does. ccRTP is a standard, RFC-compliant (as far as I
know), implementation of the Real-Time Transport Protocol.

See the demo/ directory within the main source folder for an example on
how to use it within your application. It should be pretty
straightforward. You can also refer to other projects that are using it:

http://www.sflphone.org
http://www.twinklephone.com/

On Fri, 2009-08-07 at 15:41 -0300, Osvaldo H. Peixoto wrote:
> ccRTP works with Asterisk? is yes how can i do it?
> Thanks
>
>
>
> _______________________________________________
> Ccrtp-devel mailing list
> Ccrtp-devel@...
> http://lists.gnu.org/mailman/listinfo/ccrtp-devel

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ccRTP in the Asterisk

2009-08-07T11:41:56Z

ccRTP works with Asterisk? is yes how can i do it?
Thanks

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Re: how to generate keystream segment for SRTP header

2009-07-29T11:46:17Z

Where in the source of ccRTP did you find the below diagram?

In your first mail you refer to RFC 3686 - this RFC is in no way
related to RFC 3711, no even referenced in RFC 3711. RFC 3711
describes the AES counter mode encryption that must be used for
SRTP. The below diagram does not make sense for SRTP.

Best Regards,
Werner

Yogesh Devidas Patil schrieb:

> I am implementing it for differant project. I have looked through the source files and
> found working of encryption algo as
>
> 16 bits
> * <----->
> * +------+------+------+------+------+------+------+------+
> * | nonce | pakcet index | ctr |---+
> * +------+------+------+------+------+------+------+------+ |
> * |
> * +------+------+------+------+------+------+------+------+ v
> * | salt |000000|->(+)
> * +------+------+------+------+------+------+------+------+ |
> * |
> * +---------+
> * | encrypt |
> * +---------+
> * |
> * +------+------+------+------+------+------+------+------+ |
> * | keystream block |<--+
> * +------+------+------+------+------+------+------+------+
>
> Doesn't this daviates from SRTP RFC specification ?
> And how should i choose nonce value?
>
>
>
> Regards
> Yogesh Patil
>
>
> ________________________________________
> From: Werner Dittmann [Werner.Dittmann@...]
> Sent: Tuesday, July 28, 2009 11:15 PM
> To: Yogesh Devidas Patil
> Cc: ccrtp-devel@...
> Subject: Re: [Ccrtp-devel] how to generate keystream segment for SRTP header
>
> Do you implement SRTP for this RTP stack? We already have SRTP
> avaliable since some years. If you like to implement SRTP for some
> other project maybe you can have a look in the source files to
> see how this is implemented.
>
> Best Regards,
> Werner
>
> Yogesh Devidas Patil schrieb:
>> Hi
>> I am implementing SRTP and have little confusion about it.
>>
>> as per my understanding of SRTP RFC3711,
>> Initialization vector(IV) is generated as
>>
>> IV = (salt_key << 16) XOR (SSRC << 64) XOR (packet_index << 16)
>>
>> and keystream segment (required for AES ICM ) is generated as
>>
>> Keystream_seg = E(k,IV) where k=Session key
>> i.e Keystream_seg = k XOR IV
>>
>> is my understanding correct wrt SRTP standard??
>>
>> Wherein AES ICM RFC3686, keystream segment consists
>> keystream_seg = NONCE || IV || Counter where Counter advances from initial val=0.
>>
>> I mean how to relate these keystream_seg forming units in AES ICM(NONCE,IV,Counter) with SRTP header fields & fields computed from them??
>>
>> Second, how should i generate Master Key on sender side??And how to derive session keys from Master Key??
>>
>> Thanks in advance!!
>>
>>
>> Regards
>> Yogesh Patil
>>
>> A R I C E N T
>>
>> "DISCLAIMER: This message is proprietary to Aricent and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error,please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. Aricent accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus."
>>
>>
>> _______________________________________________
>> Ccrtp-devel mailing list
>> Ccrtp-devel@...
>> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>>
>
>
> "DISCLAIMER: This message is proprietary to Aricent and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error,please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. Aricent accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus."
>

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RE: how to generate keystream segment for SRTP header

2009-07-28T22:25:37Z

I am implementing it for differant project. I have looked through the source files and
found working of encryption algo as

16 bits
* <----->
* +------+------+------+------+------+------+------+------+
* | nonce | pakcet index | ctr |---+
* +------+------+------+------+------+------+------+------+ |
* |
* +------+------+------+------+------+------+------+------+ v
* | salt |000000|->(+)
* +------+------+------+------+------+------+------+------+ |
* |
* +---------+
* | encrypt |
* +---------+
* |
* +------+------+------+------+------+------+------+------+ |
* | keystream block |<--+
* +------+------+------+------+------+------+------+------+

Doesn't this daviates from SRTP RFC specification ?
And how should i choose nonce value?

Regards
Yogesh Patil

________________________________________
From: Werner Dittmann [Werner.Dittmann@...]
Sent: Tuesday, July 28, 2009 11:15 PM
To: Yogesh Devidas Patil
Cc: ccrtp-devel@...
Subject: Re: [Ccrtp-devel] how to generate keystream segment for SRTP header

Do you implement SRTP for this RTP stack? We already have SRTP
avaliable since some years. If you like to implement SRTP for some
other project maybe you can have a look in the source files to
see how this is implemented.

Best Regards,
Werner

Yogesh Devidas Patil schrieb:

> Hi
> I am implementing SRTP and have little confusion about it.
>
> as per my understanding of SRTP RFC3711,
> Initialization vector(IV) is generated as
>
> IV = (salt_key << 16) XOR (SSRC << 64) XOR (packet_index << 16)
>
> and keystream segment (required for AES ICM ) is generated as
>
> Keystream_seg = E(k,IV) where k=Session key
> i.e Keystream_seg = k XOR IV
>
> is my understanding correct wrt SRTP standard??
>
> Wherein AES ICM RFC3686, keystream segment consists
> keystream_seg = NONCE || IV || Counter where Counter advances from initial val=0.
>
> I mean how to relate these keystream_seg forming units in AES ICM(NONCE,IV,Counter) with SRTP header fields & fields computed from them??
>
> Second, how should i generate Master Key on sender side??And how to derive session keys from Master Key??
>
> Thanks in advance!!
>
>
> Regards
> Yogesh Patil
>
> A R I C E N T
>
> "DISCLAIMER: This message is proprietary to Aricent and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error,please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. Aricent accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus."
>
>
> _______________________________________________
> Ccrtp-devel mailing list
> Ccrtp-devel@...
> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>

"DISCLAIMER: This message is proprietary to Aricent and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error,please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. Aricent accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus."

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Re: how to generate keystream segment for SRTP header

2009-07-28T10:45:23Z

Do you implement SRTP for this RTP stack? We already have SRTP
avaliable since some years. If you like to implement SRTP for some
other project maybe you can have a look in the source files to
see how this is implemented.

Best Regards,
Werner

Yogesh Devidas Patil schrieb:

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how to generate keystream segment for SRTP header

2009-07-28T08:06:50Z

Hi
I am implementing SRTP and have little confusion about it.

as per my understanding of SRTP RFC3711,
Initialization vector(IV) is generated as

IV = (salt_key << 16) XOR (SSRC << 64) XOR (packet_index << 16)

and keystream segment (required for AES ICM ) is generated as

Keystream_seg = E(k,IV) where k=Session key
i.e Keystream_seg = k XOR IV

is my understanding correct wrt SRTP standard??

Wherein AES ICM RFC3686, keystream segment consists
keystream_seg = NONCE || IV || Counter where Counter advances from initial val=0.

I mean how to relate these keystream_seg forming units in AES ICM(NONCE,IV,Counter) with SRTP header fields & fields computed from them??

Second, how should i generate Master Key on sender side??And how to derive session keys from Master Key??

Thanks in advance!!

Regards
Yogesh Patil

A R I C E N T

"DISCLAIMER: This message is proprietary to Aricent and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error,please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. Aricent accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus."

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how to generate keystream segment for SRTP header

2009-07-28T08:03:31Z

Hi
I am implementing SRTP and have little confusion about it.

as per my understanding of SRTP RFC3711,
Initialization vector(IV) is generated as

IV = (salt_key << 16) XOR (SSRC << 64) XOR (packet_index << 16)

and keystream segment (required for AES ICM ) is generated as

Keystream_seg = E(k,IV) where k=Session key
i.e Keystream_seg = k XOR IV

is my understanding correct wrt SRTP standard??

Wherein AES ICM RFC3686, keystream segment consists
keystream_seg = NONCE || IV || Counter where Counter advances from initial val=0.

I mean how to relate these keystream_seg forming units in AES ICM(NONCE,IV,Counter) with SRTP header fields & fields computed from them??

Second, how should i generate Master Key on sender side??And how to derive session keys from Master Key??

Thanks in advance!!

Thanks & Regards
Yogesh Patil

A R I C E N T

"DISCLAIMER: This message is proprietary to Aricent and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error,please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. Aricent accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus."

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RTPSession failed null

2009-07-20T01:48:27Z

i'm using your ccRTP and get some code from example audiotx.cpp.
I have some problem and no idea how to resolve it. In the code below :

class ccRTP_AudioTransmitter: public Thread, public TimerPort
{
...........................
RTPSession *socket;
public:
.............................
// This method does almost everything.
void run(void)
{
........................................... // Construct the RTP socket.
socket = new RTPSession(local_ip,TRANSMITTER_BASE);

var socket returns NULL in debug mode and after first use we have SIGSEGV error. But in release mode this code works correctly

Please, help me understand this error.

Re: configure error : libccgnu2

2009-07-14T00:43:04Z

Hi

The libccgnu2 *library* is in the libcommoncpp2-dev
<http://packages.debian.org/etch/libcommoncpp2-dev> (which is what you
need to install).

kr,
Mattias

J.Hwan.Kim wrote:

> Hi, everyone
>
> When I do "configure" command in ccRTP,
> it says to me that there is no "libccgnu2" package.
> I'm using debian etch version, and it does not
> include libccgnu2 package.
>
> Is there any way how to use ccRTP without libccgnu2?
>
> Thanks in advance.
>
> Regards,
> J.Hwan Kim
>
>
>
>
> _______________________________________________
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>
>

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configure error : libccgnu2

2009-07-13T18:45:20Z

Hi, everyone

When I do "configure" command in ccRTP,
it says to me that there is no "libccgnu2" package.
I'm using debian etch version, and it does not
include libccgnu2 package.

Is there any way how to use ccRTP without libccgnu2?

Thanks in advance.

Regards,
J.Hwan Kim

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Re: wrap bug found

2009-07-13T02:50:38Z

Attach fixes addressed issue. Pleas review.

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seqWrap.patch (844 bytes) Download Attachment

Re: Compile CCRTP

2009-07-12T15:17:17Z

I have successfully built 1.6 and 1.7 branches in Visual Studio
2008...so it can be done

What sort of errors are you encountering? A big problem I had was
that some preprocessor symbols were not being defined properly. For
example, the windows version flag which determines if IPv6 support is
included was a big problem for me...

-Kevin

On Thu, Jul 9, 2009 at 7:28 AM, Daniel Joubert<daniel@...> wrote:

> Dear Madam / Sir,
>
>
>
> I have been struggling to compile the code for ccrtp-1.7.0 in Visual Studio
> and MinGW for more than a day and is not making any progress.
>
> I would appreciate it if you can offer some of you valuable time to assist
> me.
>
>
>
> Regards,
>
> Daniël Joubert
>
> _______________________________________________
> Ccrtp-devel mailing list
> Ccrtp-devel@...
> http://lists.gnu.org/mailman/listinfo/ccrtp-devel
>
>

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Compile CCRTP

2009-07-09T07:28:52Z

Dear Madam / Sir,

I have been struggling to compile the code for ccrtp-1.7.0 in Visual Studio and MinGW for more than a day and is not making any progress.

I would appreciate it if you can offer some of you valuable time to assist me.

Regards,

Daniël Joubert

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Re: wrap bug found

2009-06-30T05:24:58Z

I can't believe, but this bug still exists and is easily reproducible
in current versions (I have tried 1.7.1 and 1.6.2). It not so easy to
notice on streams with no match traffic, but it reproducible on every
wrap on streams with bandwidth ~40 MB/s. And every wrap ccRTP looses
from 10 to 500 packets. It's just too much.
Does someone investigated this bug any farther?

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Re: How to send a RTCP SR packet first?

2009-04-08T07:12:30Z

HI

I want to know How can I make RTCP packet and send it to participents?

Thanks
Saurabh

Martin Runge-2 wrote:

Hi .*,

I am evaluating ccrtp for an audio streaming solution (muroa.berlios.de). So
far, I found all the features I need in ccrtp (1.5.1), but there is one thing
left:

How can I make the sender send a RTCP SR right at the start? I need it, to
have the RTP-NTP timestamp correlation to start playback on the client
synchronously to other clients.

Background: What I want do do is start a new session with a burst, so the
client can start playback immediately with the first data packet and gets its
receive buffer filled anyway. I managed to tell ccrtp to perform a burst in
starting the RTP timestamp at negative numbers, so all data packets with RTP
timestamp < 0 will be sent immediately. All packets with RTP ts > 0 will be
correctly scheduled.

With that burst, the client can start playback immediately after receiving the
first packet. The problem is, that I need the first SR early. I have seen in
the source, the first RTCP packet will be a RR, because no data packets have
been sent yet. The second RTCP packet is a SR (data has been sent in the
meanwhile), but it arrives after ~20 RTP data packets (5% bandwidth for
control).

Any ideas, how to get a SR packet out of an unmodified ccrtp stack at before
or directly after the first data packet?

By the way: where to specify the NTP timestamp in the API?

I would be thankful for any tips or ideas regarding this topic.

Thanks in advance,
Regards,

Martin

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Re: Grouping/linking RTPSession objects

2009-03-31T12:31:42Z

I see this is outside the scope of the RFC now. Thanks

On Tue, Mar 31, 2009 at 8:01 AM, Federico Montesino Pouzols
<fedemp@...> wrote:
>
> Hello,
>
> ccRTP does not implement synchronization among different sessions, it
> just handles sessions. It is up to the application or whatever using
> ccRTP to get the SR and NTP stamps from the sources and then do
> inter-media synchronization. As far as I know, ccRTP does not do any
> function above the RTP session "layer".
>

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Re: Grouping/linking RTPSession objects

2009-03-31T08:01:09Z

Hello,

ccRTP does not implement synchronization among different sessions, it
just handles sessions. It is up to the application or whatever using
ccRTP to get the SR and NTP stamps from the sources and then do
inter-media synchronization. As far as I know, ccRTP does not do any
function above the RTP session "layer".

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Grouping/linking RTPSession objects

2009-03-30T13:36:35Z

As I have understood RFC3550 you must put related streams on different
SSRCs, for example, one sender might have video at UDP port 5000/1 and
audio at 5002/3 with different SSRCs. Then, these different streams
are synchronized by correlating their timestamps to a NTP stamp in a
sender report.

How does ccRTP implement this behavior?

Thanks,

-Kevin

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RFC3984 fragmentation unit implementation

2009-03-30T08:55:14Z

Hi all,

I'm implementing RFC3984 (H.264 payload format) for use with ccRTP. I
have a general question about the Fragmentation Unit, if anyone knows.
When you fragment a NALU, you put two bytes in front of each fragment,
1 for FU indicator, and 1 for FU header. These 2 bytes contain the
same information that the NALU header does.

My question is, are you supposed to strip out the NALU header and
re-assemble it on the receiver side, or do you just leave the NALU
header as is?

Thanks,

-Kevin

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template specialization with C linkage

2009-03-25T08:02:04Z

Hi there!

I'm trying to compile the rtphello.cpp but eclipse
throws a lot of error messages like

"template with C linkage"
or
"template specialization with C linkage" (can't post the original, because it's German)

As I found out it probably has something to do with
"extern C { }"
but I don't know how to fix this problem.

Thanks a lot in advance.

Best regards
Antonio
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multiple synchrozation sources

2009-03-08T13:12:09Z

Hi,

I understand that, in GNU ccRTP, both inter-media and intra-media synchronization is automatically handled within the incoming and outgoing packet queues. I, however, could not find an example code showing how to use this feature.

Is it possible to include an example regarding this feature in the demo folder?

Thank you in advance.

Help with RTCP reports rate

2009-03-06T07:14:29Z

Hi all,

I am working in a QoS extension for VoIP and I am using ccrtp. What I'm trying to do is increase RTCP packets rate during a conversation when some event occurs. I've thought some possibilities for doing that but neither of them seemed to work.

The first one consists in using "setSessionBandwidth(0.25)" function to have a 25% of RTCP rate compared to RTP rate. But I don't see any difference maybe because it only works before stablishing conversation and not during it, am I correct?

The other one is use "dispatchControlPacket" function to control when I want to send the packets, this works for me but it seems the information in packets like fraction lost become wrong because I don't send the packets at the right time.

If anyone has a solution for this I would be very grateful

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