[SR-Users] Adding a media attribute to SDP

[Daniel-Constantin Mierla]

Hello,

to understand properly how message is updated, see the details at:
- 
http://www.kamailio.org/wiki/tutorials/faq/main#why_changes_made_to_headers_or

Anyhow, I think you could try to append at the end of any a= ... line, 
thus matching on "^a=.+$"

For long term, I think adding a function that adds content to body/sdp 
would be useful, so you can add a request for a new feature in our 
tracker not to forget about it.

Cheers,
Daniel

On 01/09/14 15:19, aft wrote:
> Hi,
>
> I'm trying with the following block of codes to do it... :
>
>   if (is_method("INVITE") && has_body()) {
>                  #search_append_body("nortpproxy", "a=ptime:20\r\n");
>                  xlog("INVITE with SDP");
>                  if(search_body("a=nortpproxy:yes"))
>                 {
>                          xlog("found nortpproxy");
>                          replace_body("a=nortpproxy:yes","a=ptime:20");
>                 }
>          }
>
> But for some strange reason, the second log message, that is
> xlog("found rtpproxy") is not executed. But from a packet capture, i
> can see it does have a "a=nortpproxy:yes" field. Why its not matching?
>
> On Mon, Sep 1, 2014 at 4:23 PM, aft <aftnix at gmail.com> wrote:
>> On Mon, Sep 1, 2014 at 4:18 PM, Daniel-Constantin Mierla
>> <miconda at gmail.com> wrote:
>>> Hello,
>>>
>>> see textops module -- there are some functions that work on body based on
>>> regular expressions matching and substitution.
>> Problem is the original SDP does not have a "a=ptime" field. So what
>> should i search for?
>>
>> I do not see an "append_body()" method :(
>>
>>
>>> Cheers,
>>> Daniel
>>>
>>>
>>> On 01/09/14 12:12, aft wrote:
>>>> Hi,
>>>>
>>>> I want to add this media attribute to SDP.
>>>>
>>>>         a=ptime:<packet time>
>>>>
>>>> [1] Its not covered in SDPops module
>>>> [2] its not added when i use rtpproxy_manage("z<packet size>") to
>>>> repacketize the rtp stream.
>>>>
>>>> So how should i do it?
>>>>
>>> --
>>> Daniel-Constantin Mierla
>>> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>>> Next Kamailio Advanced Trainings 2014 - http://www.asipto.com
>>> Sep 22-25, Berlin, Germany ::: Oct 15-17, San Francisco, USA
>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
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>>
>>
>> --
>> -Cheers
>> -Arif
>
>

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Next Kamailio Advanced Trainings 2014 - http://www.asipto.com
Sep 22-25, Berlin, Germany ::: Oct 15-17, San Francisco, USA