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/trunk/channels/chan_sip.c
<https://reviewboard.asterisk.org/r/2723/#comment20096>

    Shouldn't this be &a_audio instead of &a_text, or does it matter?


- Sean Bright


On Aug. 23, 2013, 3:42 p.m., Matt Jordan wrote:
> 
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> https://reviewboard.asterisk.org/r/2723/
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> 
> (Updated Aug. 23, 2013, 3:42 p.m.)
> 
> 
> Review request for Asterisk Developers, Joshua Colp and Mark Michelson.
> 
> 
> Bugs: ASTERISK-21981
>     https://issues.asterisk.org/jira/browse/ASTERISK-21981
> 
> 
> Repository: Asterisk
> 
> 
> Description
> -------
> 
> Note: This patch was written by Lorenzo Miniero. I know he's at the IETF this 
> week, but I figured we could get the formal code review going for him :-)
> 
> This patch adds pass through support for Opus and VP8. That includes:
> * Format attribute negotiation for Opus. Note that unlike some other codecs, 
> the draft RFC specifies having spaces delimiting the attributes in addition 
> to ';', so you have "attra=X; attrb=Y". This broke the attribute parsing in 
> chan_sip, so a small tweak was also included in this patch for that.
> * A format attribute negotiation module for Opus
> * Fast picture update for VP8. Since VP8 uses a different RTCP packet number 
> than FIR, this really is specific to VP8 at this time. Ideally this would be 
> more generic and flexible for user preferences and other video codecs, but 
> that could be done at a latter date.
> 
> The only part of this work that I did was port over the fast picture update 
> code to chan_pjsip. I *think* that chan_pjsip will still suck out the 
> attributes in res_pjsip_sdp_rtp, but I could be mistaken (Josh?)
> 
> 
> Diffs
> -----
> 
>   /trunk/res/res_rtp_asterisk.c 397424 
>   /trunk/res/res_pjsip_sdp_rtp.c 397424 
>   /trunk/res/res_format_attr_opus.c PRE-CREATION 
>   /trunk/main/rtp_engine.c 397424 
>   /trunk/main/frame.c 397424 
>   /trunk/main/format.c 397424 
>   /trunk/main/channel.c 397424 
>   /trunk/include/asterisk/opus.h PRE-CREATION 
>   /trunk/include/asterisk/format.h 397424 
>   /trunk/channels/chan_sip.c 397424 
>   /trunk/channels/chan_pjsip.c 397424 
> 
> Diff: https://reviewboard.asterisk.org/r/2723/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Matt Jordan
> 
>

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