pjsip Digest, Vol 80, Issue 4

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I will check those out. Thanks a lot R3gis!


On Tue, Apr 1, 2014 at 2:15 PM, <pjsip-request at lists.pjsip.org> wrote:

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>    1. Re: Build PJSIP 2.2.1 with opus (R?gis Montoya)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 1 Apr 2014 10:44:59 +0200
> From: R?gis Montoya <r3gis.3r@xxxxxxxxx>
> To: pjsip list <pjsip at lists.pjsip.org>
> Subject: Re: Build PJSIP 2.2.1 with opus
> Message-ID:
>         <
> CALdtMaVPgqqCsLood41eAS92Fg9y1u6h4Oe9FO+a6951qOomVQ at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi,
>
> You should update your code to use latest patch available (last change was
> made this weekend to fix critical compatibility issue).
> The opus format has evolved (in particular RTP payload format). As
> consequence the old post sent is pretty outdate.
> Instead, use latest versions which is compounded of :
> * the codec plugin, it can be compiled outside of pjsip toolchain:
>    ->
>
> https://code.google.com/p/csipsimple/source/browse/trunk/CSipSimple#CSipSimple%2Fjni%2Fopus%2Fpj_sources
> * the patch to add rtp payload type :
>    ->
>
> https://code.google.com/p/csipsimple/source/browse/trunk/CSipSimple/jni/pjsip/patches/003rtp_type_strip.diff
> * patch to hack timestamp in stream (due to 48kHz clock rate of opus)
>    ->
>
> https://code.google.com/p/csipsimple/source/browse/trunk/CSipSimple/jni/pjsip/patches/014opus_ts_fix.diff
> * module to present opus codec as one having a different internal clock
> rate from announced one (opus always announce 48kHz while it can be
> different internally and in mobile it's very important to use lower
> clockrate to avoid resampling when open audio device at lower clockrate --
> it also might allow to reduce bandwidth ):
>    ->
>
> https://code.google.com/p/csipsimple/source/browse/trunk/CSipSimple/jni/csipsimple-wrapper/src/pjsip_opus_sdp_rewriter.c
> With this code you'll get opus compliant (RFC6716 + draft
> draft-spittka-payload-rtp-opus version 03). It's currently compatible with
> jitsi and freeswitch implementation of opus. There is however some known
> limitations (for example about ptime), but it's not a problem with others
> implementations of the codec.
>
>
> As the work is mainly done for android on csipsimple there is currently
> nothing to build using the pjsip toolchain. However it should be very easy
> to build as there is no big dependancies on these plugins (it's just pjsip
> + opus). The code above is maintained and might continue to evolve. It's
> released under apache license (as everything closely related to pjsip
> project on csipsimple), so feel free to reuse and contribute to it.
>
> Best regards
> R?gis
>
>
>
>
>
> 2014-04-01 9:42 GMT+02:00 Vinay <vinay.nair at novanet.net>:
>
> > Hi,
> >
> > I have been trying to upgrade our iOS project unsuccessfully to PJSIP
> > 2.2.1 with opus 1.1 and openSSL for armv7, armv7s and arm64 for iOS. We
> > were using PJSIP 2.0 earlier.
> >
> > First I got an error saying opus.h not found in pjmedia, following which
> I
> > added it manually. But after that I am not able to generate the
> > libopuscodec-arm-apple-darwin9.a file. The build process does not show
> > any error but I am unable to generate the required lib.
> >
> > I have attached the script that I have used to build it. The procedure I
> > followed was:
> >
> >    - Placed opus in pjsip2.2.1->third_party.
> >    - Used the opus patch found on the forums (attached herewith)
> >    - Built openSSL.
> >    - Ran the build script  (attached herewith)
> >
> >
> >  Any help will be greatly appreciated as I have been stuck on this for
> > quite some while.
> >
> >
> >
> >
> > --
> > Vinay Nair
> > vinay.nair at novanet.net
> >
> >
> >
> >
> >
> > _______________________________________________
> > Visit our blog: http://blog.pjsip.org
> >
> > pjsip mailing list
> > pjsip at lists.pjsip.org
> > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
> >
> >
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> End of pjsip Digest, Vol 80, Issue 4
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>



-- 
Vinay Nair
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