AMR Implementation for Osmocom-BB

Michael Spacefalcon msokolov at ivan.Harhan.ORG
Thu Oct 24 20:39:24 UTC 2013


Akib Sayyed <akibsayyed at gmail.com> wrote:

> I am trying to implement AMR codec for osmocom-bb.

Doesn't AMR support require applying some DSP code patches?

Locating the DSP patch bits within a binary fw image read out of C1xx
or whatever would probably be an incredible pain, but you can use this
source/object mixed version instead:

ftp://ftp.ifctf.org/pub/GSM/TI_src/Sotovik/

If you download ti-libs-extract.tar.bz2 from the above, you'll find
all DSP patches in various *.obj modules in the l1_ext subdirectory
inside that tarball.  The names of the little individual object modules
in that bunch are quite descriptive.  The object format is TI's variant
of COFF; you will need this patch to GNU Binutils in order to grok
these objects:

ftp://ftp.ifctf.org/pub/embedded/ti-arm/

Enjoy!

Viva la Revolucion,
SF




More information about the baseband-devel mailing list