[Asterisk-video] app transcoder

[Sergio Garcia Murillo]

Hi anandapip,

app_transcoder only supports encoding in h263-1998/2000 (h263p), not in 
h263-1996.

Best regards
Sergio

anandadip mandal escribió:
> Hi Sergio
> Thanks for the reply.
> There was a problem in my ffmpeg (livavcodec) which was not buit with 
> videocodec support.I have replaced it and now not getting the error.
> But a strange problem I am facing now.
> I have tried transcoding between h263 and h263+.I have used Xlite and 
> linphone.
> I am calling from linphone which is using h263-1998 codec; App 
> transcoder encodes the incoming h263-1998 to h263 and places call to 
> xlite. It is also evident from the sip signalling traces that codec 
> between asterisk and linphone is h263-1998 and between asterisk and 
> xlite is h263.But if i configure xlite only for h263 ; no video is 
> apperaing. But if i keep codec in xlite h263-1998 (i.e h263+) video 
> appears.
> I am not sure if app_transcode module is really encoding in h263 
> format thogh log says it is encoding.
>  
> Thanks and regards
> Anand
>
>
>  
> On 02/11/2009, *Sergio Garcia Murillo* <sergio.garcia at fontventa.com 
> <mailto:sergio.garcia at fontventa.com>> wrote:
>
>     Hi anandadip
>
>     Get the core dump and a back trace of asterisk when it seg faults
>
>     Best regards
>     Sergio
>
>     anandadip mandal escribió:
>>     Hi
>>     I want to make video call between two sip phone having different
>>     video codecs using app_transcoder.
>>     I have used the following dialplan
>>     [default]
>>     exten => 101,1,Answer
>>     exten =>
>>     101,2,transcode(,102 at default,h263 at qcif/fps=12/kb=52/qmin=4/qmax=12/gs=50)
>>     exten => 102,1,Dial(SIP/101)
>>      
>>     the 102 ( having h263-1998 codec) extension is calling 101
>>     (having h263 codec).
>>     I can see the call between the two phone established but no
>>     video; also i dont see any ack coming from 101 and within seconds
>>     asterisk gives a segfault.
>>     Without app transcoder, video call works fine when both phone use
>>     h263-1998 codec.
>>     I am using asterisk 1.4; the transcode module loads succesfully;
>>     even it executes and places a call to the configured extension)
>>      
>>     Please help me if i am using the correct dialplan or am i missing
>>     something.
>>      
>>     Any help will be much appreciated.
>>      
>>     Regards
>>     Anand
>>
>>
>>      
>>     On 26/10/2009, *anandadip mandal* <anandadip at gmail.com
>>     <mailto:anandadip at gmail.com>> wrote:
>>
>>         Hi
>>         I have successfully compiled and able to load the
>>         app_transcoder.so;
>>         I want to know the configuration of  extension.conf to put
>>         the app_transcoder in use.
>>         I have two sip soft phone(video capable) 3000, 3001 which are
>>         already registered to asterisk and I can make audio call 
>>         between them;
>>         Also please let me know if i have to add anything specific to
>>         extesion.conf and sip.conf  for enabling  video call.
>>         Any help will be very much appreciated.
>>         Thanks and regards
>>         Anand
>>
>>          
>>         2009/10/20 anandadip mandal <anandadip at gmail.com
>>         <mailto:anandadip at gmail.com>>
>>
>>             is there any document for compilation procedure of app
>>             transcoder?also could someone point me how to integrate
>>             it with asterisk?
>>             Thanks
>>             Anand
>>
>>
>>
>>
>>         -- 
>>         Anandadip Mandal
>>
>>
>>
>>
>>     -- 
>>     Anandadip Mandal
>>     ------------------------------------------------------------------------
>>
>>
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>      
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>
> -- 
> Anandadip Mandal
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