[Freeswitch-users] MP2

Steve Underwood steveu at coppice.org
Sat Jan 3 19:51:02 MSK 2015

I have no idea how well it works, but there is this MP2 decoder - 

On 01/03/2015 07:00 AM, Brian West wrote:
> That looks like just the encoder, so we would need both the encoder 
> and decoder that takes signed linear.  I'll be on the look out for an 
> option too.
> On Fri, Jan 2, 2015 at 4:54 PM, Thomas Auge <auge at virtues.net 
> <mailto:auge at virtues.net>> wrote:
>     > G722 can be a native bearer capability on an ISDN b-channel but thats not widely used.  MP2 in your case is just
>     > establishing a data channel be it via ISDN or IP.
>     Yup. I'm fairly certain that's what FreeTDM does for G722, else it
>     wouldn't make much sense to have a codec
>     configuration option. :)
>     > Before proceeding I would seek out a license compatible
>     encoder/decoder library that can be used, MP2 can mean so many
>     > things their are multiple levels, options and details required
>     to properly implement it.  I highly suspect its not an
>     > afternoon event, I could be wrong if the right library is found
>     thats license compatible.
>     There are a couple, T(w/o)oLame comes to mind.
>     (http://www.twolame.org/ LGPL licensed) Any pointers as to which
>     capabilities are needed in such a library? It seems the libraries
>     are as outdated as the codec. :)

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