[Asterisk-video] h263 blackholed.

Wed May 21 16:26:20 CDT 2008

Hi,

Try adding videosupport=yes also to sip peers and if you're using Xlite 
set it to send the invite
with video at first and not re-invite latter with video offer (If i 
recall correctly from the pastebin).

Best regards
Sergio

Miles Scruggs escribió:
> Damn it looks like my pastebin has expired but we were only sending  
> one codec, the only thing that would make it fail was to send the  
> codec to asterisk after the call is setup.  If we setup the call with  
> h263 listed then it would work out of the door, but if the call was  
> setup without the codec, then a second invite came down the pipe to  
> asterisk with the new codec (h263) asterisk would pretend to  
> renegotiate but never passed h263.
>
> On May 21, 2008, at 2:00 PM, Borja Sixto wrote:
>
>   
>> Hi, the standard asterisk do not support cleanlly the sdp negociation.
>> Try setting only one video codec.
>>
>> Regards,
>>
>>
>> Tech from i6net
>>
>> ----- Message d'origine -----
>> De: Gunnar Hellstrom <gunnar.hellstrom at omnitor.se>
>> Env: mercredi 21 mai 2008 19:47
>> À: 'Development discussion of video media support in Asterisk' <asterisk-video at lists.digium.com 
>>     
>> Objet: Re: [Asterisk-video] h263 blackholed.
>>
>> You must use a late VIDCAPS to get any usable video support from  
>> Asterisk.
>> VIDCAPS adds important ability to handle SDP properly in the call  
>> setup.
>>
>> Gunnar
>>
>> -----Original Message-----
>> From: asterisk-video-bounces at lists.digium.com
>> [mailto:asterisk-video-bounces at lists.digium.com] On Behalf Of Miles  
>> Scruggs
>> Sent: Tuesday, May 20, 2008 11:37 PM
>> To: asterisk-video at lists.digium.com
>> Subject: [Asterisk-video] h263 blackholed.
>>
>> I'm trying to get asterisk to proxy h263 for a video call, but not  
>> having
>> any luck.  I have posted a full call trace here:
>>
>> http://pastebin.com/d330aecb5
>>
>> While watching a full packet dump on the asterisk node, I can see the
>> h263 coming in from the clients, but it never leaves (asterisk never
>> originates 1 h263 packet).  You can see on line 123 of the pastebin  
>> that the
>> calls get setup without video but then h263 is renegotiated on line  
>> 456.
>> The second end point sets up h263  on line 313.  I'm
>> pretty lost as to how I can get asterisk to play nice.  This is
>> Asterisk 1.4.18.1
>>
>> I just was able to test, and if the call sets up (the initial invite
>> contains) with h263, and isn't done with a re-invite at a later time  
>> then it
>> works fine.
>>
>> my sip conf looks like the following:
>>
>> [general]
>> type=friend
>> host=dynamic
>> context=incoming
>> srvlookup=yes
>> canreinvite=no
>> videosupport=yes
>> qualify=yes
>> nat=yes
>> host=dynamic            ; This device registers with us
>> disallow=all ;better for custom-tunning codec selection allow=ulaw
>> allow=alaw
>> allow=h263 ; H.263 is our video codec
>> allow=h263p ; H.263p is the enhanced video codec
>> dtmfmode=rfc2833 ; inband is not supported in compressed codecs like  
>> gsm, so
>> we better set it to rfc2833
>>
>>
>> [miles_8920_lap]
>> type=friend
>> host=dynamic
>> secret=*****
>> context=internal_devices        ; the internal_devices context
>> controls what we can do
>> mailbox=8920 at sixsquares
>> callerid= Miles Scruggs <8920>
>> canreinvite=no
>>
>> [jon_8926_desk]
>>
>> type=friend
>> host=dynamic
>> secret=*****
>> context=internal_devices
>> mailbox=8926 at sixsquares
>> callerid=Jonathan Larsen <8926>
>> canreinvite=no
>>
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>
>
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