a simple BRR encoding/decoding library.
copy brrUtils.c and brrUtils.h to your project (remember to add brrUtils.c to your sources list).
include brrUtils.h. it provides two functions:
brrEncode() for encoding a 16-bit PCM sample to BRR, and
brrDecode() for decoding a BRR sample to 16-bit PCM.
read brrUtils.h for notes and more information.
if you compile the CMake project, you'll get two executables: brrenc and brrdec. these can be used to do a quick command-line conversion from/to BRR.