[asterisk-bugs] [JIRA] (ASTERISK-21432) Video isn't negotiated when endpoint switches to video on an established SIP to SIP call

[Rusty Newton (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-21432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=207037#comment-207037 ] 

Rusty Newton commented on ASTERISK-21432:
-----------------------------------------

Thanks for the additional info.

In the cases where it looks like it isn't working for you (Log/Dump 3) it appears that your second endpoint is rejecting the video offer by responding back in the SDP header "m=" with "video 0 RTP/AVP 0"

I'm goign to go ahead and close this issue out for three reasons:

1. This looks like a configuration issue. Asterisk appears to be responding appropriately to the traffic it receives in your PCAPs and logs

When the issue occurs, your endpoint is rejecting the video offer from Asterisk, therefore the other leg shouldn't get setup for video.

3. issues.asterisk.org is not used for support. You'll need to seek support on the [Asterisk users list or forums|http://www.asterisk.org/community/discuss] and try to get a clearer picture of what you feel is a bug before you report it here again.

4. I also noticed that you have VP8 in your codec setup which tells me that you might be using a patched version of Asterisk since Asterisk doesn't have support for that yet. Being that the problem you are having here is concerning video support - if you file a new issue you'll need to verify you are using a vanilla version of Asterisk.


You might try reconfiguring your endpoint, or reconfiguring your codec orders on both Asterisk and the endpoint. If anything, try to simplify the the scenario as much as possible and reduce the number of codecs you are offering to one audio and one video. Then you may get a clearer picture as to what is happening.
                
> Video isn't negotiated when endpoint switches to video on an established SIP to SIP call
> ----------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-21432
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21432
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/CodecHandling, Channels/chan_sip/Video
>    Affects Versions: 11.2.1
>         Environment: Server OS: Ubuntu 12.04.2 LTS
> Client: X-Lite, Jitsi, Linphone
>            Reporter: Nikita Voloshin
>            Assignee: Nikita Voloshin
>         Attachments: dump1.pcap, dump2.pcap, dump3.pcap, dump4.pcap, extensions.conf, log-1.txt, log-2.txt, log-3.txt, log-4.txt, sip.conf, sip_show_peer.txt
>
>
> How to reproduce:
> Step 1: Start a conversation between users (User 1, User 2)
> Step 2: Try to switch to a video call (User 1)
> Video does not start.
> I Get this string in log:
> "chan_sip.c:13001 add_sdp: This call needs video offers, but caller probably did not offer it!"
> *If after Step 2 I try to start video on User 2 it is work fine.
> **If I do video call at start, it is work fine.
> I think that it is similar to the bug: ASTERISK-14139
> My post on forum: [Video didn't work from the first time.|http://forums.asterisk.org/viewtopic.php?f=1&t=86160]
> Full log: [http://pastebin.com/whqtkqYb]
> Server on public IP
> Client behind NAT, ICE enabled

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