for the record. info about opus from Lorenzo Mniero (author of Opus
patch for asterisk) with his permission
--cite--
Opus is just a codec. In order to save an audio file using Opus, you
need a container, which for Opus is OGG. Asterisk supports OGG, but I
think it is implemented to only dump Vorbis audio, and so the existing
module would need to be extended to support Opus as well.
I haven't checked how complex this could be, to be honest, so I have
no idea about how much effort would be needed for this. Right now we
don't need it, so I really can't say if and when we'll start working
on this.
Lorenzo
--cite--
Dne 24.1.2014 10:42, Gareth Blades napsal(a):
On 23/01/14 23:37, Marek Cervenka wrote:
can someone confirm that mp3 is unsupported? is patch available?
what about patch for Opus?
uncle google doesnt know
MP3 is only supported for reading not writing. Its a patent issue as
Asterisk cannot distribute the software to write to mp3 under its own
license.
Its a similar issue with Opus as the codec is covered by a couple of
patents in the USA.
What most people do is use MixMonitor to record to .wav (alaw) and
then in the 'h' extension call a program which runs a background task
to convert the .wav file to whatever format they wish.
Thats what we do but we actually use the Monitor application and we
end up with both legs of the call and multiple sets of recordings if
people pause and unpause. We then move these files off to a different
server when they get mixed and converted to mp3 and then emailed out
to our customers. We do it this way to reduce the load on the Asterisk
boxes but also keep all the call recordings in a central location.
--
---------------------------------------
Marek Cervenka
=======================================
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