[asterisk-bugs] [Asterisk 0009066]: Cannot make compatible if video codecs do not match and audio codecs require transcoding

[noreply at bugs.digium.com]

The following issue has been RESOLVED. 
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http://bugs.digium.com/view.php?id=9066 
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Reported By:                hristo
Assigned To:                file
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Project:                    Asterisk
Issue ID:                   9066
Category:                   Channels/chan_sip/CodecHandling
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     resolved
Asterisk Version:            SVN 
SVN Branch (only for SVN checkouts, not tarball releases):  1.4 
SVN Revision (number only!): 54290 
Disclaimer on File?:        N/A 
Request Review:              
Resolution:                 suspended
Fixed in Version:           
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Date Submitted:             02-14-2007 10:40 CST
Last Modified:              02-26-2008 12:49 CST
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Summary:                    Cannot make compatible if video codecs do not match
and audio codecs require transcoding
Description: 
Asterisk fails to bridge two call legs if one of them offers audio+video
and the other only supports audio, but in fact does offer video to port 0
(supura bug maybe? see additional info below).

Anyway, the problem only appears if asterisk needs to make audio
transcoding and at the same time there are no matching video (yes video!)
codecs.

Note that the problem is *not* present if either:
- video codecs are disabled in sip.conf (audio transcoding b/n 711 and 729
works fine in this case) or
- even with video codecs on, audio codecs match (therefore no need to
tanscode)

Maybe asterisk only needs to give up trying to setup video, since audio
can be handled properly (even via transcoding - line 499 of debug). Instead
asterisk drops the call with:

[Feb 14 17:44:47] WARNING[5583]: app_dial.c:1607 dial_exec_full: Had to
drop call because I couldn't make SIP/mydomain.tld-081ff6e0 compatible with
SIP/ser-08230148

I'm pretty sure this used to work a couple of weeks ago.
sip debug attached.
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Relationships       ID      Summary
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related to          0009815 [patch] major fix for SIP video codec n...
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---------------------------------------------------------------------- 
 file - 02-26-08 12:49  
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As this is a duplicate of 9815 I'm suspending it out, since the other one
has much more progress. 

Issue History 
Date Modified   Username       Field                    Change               
====================================================================== 
02-26-08 12:49  file           Status                   acknowledged => resolved
02-26-08 12:49  file           Resolution               open => suspended   
02-26-08 12:49  file           Assigned To               => file            
02-26-08 12:49  file           Note Added: 0082978                          
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