[asterisk-bugs] [JIRA] (ASTERISK-23963) Media format improvements: make chan_iax2 work

[Matt Jordan (JIRA)]

Matt Jordan created ASTERISK-23963:
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             Summary: Media format improvements: make chan_iax2 work
                 Key: ASTERISK-23963
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23963
             Project: Asterisk
          Issue Type: Improvement
      Security Level: None
          Components: Channels/chan_iax2
            Reporter: Matt Jordan


*Note:* this issue applies only to work that is being done for the new media format architecture branch (team/group/media_formats-reviewed-trunk). 

The {{IAX2}} channel driver is a bit odd, in that it must treat formats using the historical bit field representation. As such, a compatibility API ({{format_compatibility.h}}) has been provided to map formats/codecs to their bitfield equivalent.

The code compiles. The module does not load due to a linker error:
{code}
*CLI> module load chan_iax2.so
Unable to load module chan_iax2.so
Command 'module load chan_iax2.so' failed.
*CLI> [Jun 26 19:41:39] WARNING[19300]: loader.c:561 load_dynamic_module: Error loading module 'chan_iax2.so': /usr/lib/asterisk/modules/chan_iax2.so: undefined symbol: ast_codec_pref_convert
{code}

We need to make {{chan_iax2}} work. It needs to maintain its functionality using the format compatibility API. Preferably, it should not crash, leak memory, or otherwise mess up our lovely new API :-)



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