Hello,

You're right about the 90000ms for the timestamp.
This was fixed in the NG.
Please take a look at rev 7130

NG currently works with asterisk as far as I know.

Jerome

-----Message d'origine-----
De : [EMAIL PROTECTED]
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Envoyé : jeudi 21 septembre 2006 10:34
À : [email protected]
Objet : [Wengophone-devel] Some findings on Openwengo Classic H263
videocommunication

Hi,

I have been looking for the reason why OpenWengo Classic won't return  
video to the video hardphone on SIP network. And I suspect the  
phcodec_avcodec_video_rtp_callback() class in  
phcodec-avcodec-wrapper.c could be the cause, as Ethereal shows that  
OpenWengo does not sent any video packets to Asterisk server when the  
class function is removed.

When I compare OpenWengo Classic with other softphone like X-Lite and  
Kapanga, the behaviour on how OpenWengo Classic sent its video packet  
also catch my notice. This is what I find out from Ethereal statistic  
on H263 packets:

1) Other softphone communicate with Asterisk server with SSRC value of  
10 digits(eg. SSRC=1158049305), while OpenWengo Classic response  
Asterisk server with 4 digits(eg. SSRC=7783) and Asterisk reply with  
10 digits

2) Other softphone communicate with Asterisk server with Time  
increment value waver around 2800ms, while OpenWengo Classic response  
Asterisk server with consistent increment value of 90000ms and  
Asterisk server response with increment value of 90000ms as well.

3) Other softphone communicate with Asterisk server with H263 payload  
header and H263 stream (with PSC), while OpenWengo Classic response  
Asterisk server with H263 payload stream (without PSC) and Asterisk  
server response with H263 payload header and H263 payload stream (with  
PSC)

I'm new at network programming, but I felt that the value setting is  
incompatible and increment too consistent could be the cause. I need  
to confirmation with you guys to check the results is same as mine.  
Video communicating between OpenWengo Classic on SIP network is normal  
though, just puzzled why OpenWengo Classic won't video communicate  
with other SIP phones. Please correct me if I'm wrong in any way.  
Thanks.

PS: The phcodec_avcodec_video_rtp_callback() code structure on  
OpenWengo NG is roughly the same as the Classic's, the result is  
roughly the same when I overwrite the code with NG's
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