[asterisk-bugs] [JIRA] (ASTERISK-21464) with directrtpsetup the A party codec identifiers are not passed to the B party

[Kevin Stewart (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-21464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=205360#comment-205360 ] 

Kevin Stewart commented on ASTERISK-21464:
------------------------------------------

The fault appears to be caused by ast_rtp_instance_early_bridge_make_compatible calling ast_rtp_codecs_payloads_copy to copy from the outgoing channel to the incoming channel.
        ast_rtp_codecs_payloads_copy(&instance0->codecs, &instance1->codecs, instance1);
this does nothing as codecs is zeroed on creation

I would think copying the other way woulf be the correct thing to do
        ast_rtp_codecs_payloads_copy(&instance1->codecs, &instance0->codecs, instance0);
This causes the identifiers from the incoming leg to be used in the outgoing leg

                
> with directrtpsetup the A party codec identifiers are not passed to the B party
> -------------------------------------------------------------------------------
>
>                 Key: ASTERISK-21464
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-21464
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Core/RTP
>    Affects Versions: 1.8.20.1
>            Reporter: Kevin Stewart
>
> with directrtpsetup=yes
> an incoming invite with an SDP containing
> a=rtpmap:119 telephone-event/8000
> will produce and outgoing invite with an SDP containing
> a=rtpmap:101 telephone-event/8000

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