[asterisk-bugs] [JIRA] (ASTERISK-25160) SIP: SDP: Audio-Codecs: Opus: rtpmap missing

[Alexander Traud (JIRA)]

Alexander Traud created ASTERISK-25160:
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             Summary: SIP: SDP: Audio-Codecs: Opus: rtpmap missing
                 Key: ASTERISK-25160
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25160
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_sip/CodecHandling
    Affects Versions: SVN, 13.4.0
         Environment: Ubuntu 14.04 LTS
            Reporter: Alexander Traud
            Severity: Minor


Sometimes, Asterisk does not send a "rtpmap" line in SIP/SDP. This affects all formats with an attribute module like H.263, H.264, and Opus (res/res_format_attr_opus.c).

This happens, because "ast_format_generate_sdp_fmtp" is called with a format without an attribute module (variable "interface" is NULL). This happens, because such a format was created before its attribute module got registered. This happens for

I) cached formats: main » ast_codec_builtin_init » CODEC_REGISTER_AND_CACHE » ast_format_create | ast_format_cache_set » set_cached_format

II) local capabilities: main » ast_local_init » ast_format_cap_append_by_type » ast_format_create

Steps to reproduce:
# make install samples
# edit sip.conf to allow "opus"
# dial echo-test extension (600)



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