gsm0503_coding contains AMR decoder functions for HR and FR. Those can
only decode AMR payload frames but not amr DTX frames. Lets add
functionality to detect DTX frames. Also lets add decoding for SID_UPDATE
frames as well as error checking for the SID frame recognition patterns.
Related: OS#2978
Change-Id: I2bbdb39ea20461ca08b2e6f1a33532cb55cd5195
As a result whitespace ended up in some variables and then command
"expr" was not happy about it.
It was spotted because src/coding/Makefile.am had some whitespacing.
Since it's the only one, let's drop the whitespace there too to have
similar line in all Makefile.am files.
Change-Id: I33afef5e4ef9eb36de81274533f46598ba9a0edb
Despite the libosmocoding.map is preset since the library release,
one was not used in a proper way. The LTLDFLAGS were missing, so
let's add them.
Change-Id: Idf677825ff642d50bea43c7f970810783e864fdd
In tightly embedded builds (--enable-embedded), we want the ability to
replace talloc with a very simple heap allocator to avoid the complexity
of talloc without modifying all our code that assumes talloc.
This will break the hierarchical notion of the allocator, but
libosmo{core,gsm,coding,codec} don't rely on that anyway.
Change-Id: Ie341034076f242a813f081919dd09d845775ad35
To allow building coding/gsm0503_interleaving.c which includes the generated
bit*gen.h (via bits.h), add -I to the builddir include path in order to find
the generated bit*gen.h headers there.
Change-Id: I0d465bc109765b1315d615243bea6af027afa368
There are some projects, such as GR-GSM and OsmocomBB, which would
benefit from using one shared implementation of GSM 05.03 code. So,
this commit introduces a new sub-library called libosmocoding, which
(for now) provides GSM, GPRS and EDGE transcoding routines, migrated
from OsmoBTS.
The original GSM 05.03 code from OsmoBTS was relicensed under
GPLv2-or-later with permission of copyright holders (Andreas Eversberg,
Alexander Chemeris and Tom Tsou).
The following data types are currently supported:
- xCCH
- PDTCH (CS 1-4 and MCS 1-9)
- TCH/FR
- TCH/HR
- TCH/AFS
- RCH/AHS
- RACH
- SCH
Change-Id: I0c3256b87686d878e4e716d12393cad5924fdfa1
Vadim Yanitskiy
Pau Espin
Philipp Maier
Vadim Yanitskiy
Harald Welte
Neels Hofmeyr