bcg729, the open source G729 codec
Bcg729 is a software G729A encoder and decoder library written in C, developed by Belledonne Communications, the company supporting the Linphone project. It was written from scratch and is NOT a derivative work of ITU reference source code in any kind.
It can be executed on many platforms, including both ARM and x86 with very decent performances. libbcg729 supports concurrent channel encoding/decoding for multi-call applications such as conferencing.
The source code also contains a mediastreamer2 compatible plugin, designed for use of this codec in Linphone or mediastreamer2-based software. However a direct API is available for those not using bcg729 with mediastreamer2.
Source code tarballs are available:
Bcg729 source code can be downloaded from git as well:
git clone git://git.linphone.org/bcg729.git
Bcg729 is distributed under the GNU GPLv2.
Proprietary licenses can be purchased from Belledonne Communications for use within closed-source commercial applications.
Despite this implementation is open-source, the use of G729 remains governed by a patent license to be acquired from G729 patent holder representatives.