The source files in this directory are from Appendix A Reference 
Implementation of the iLBC Internet Low Bit Rate Codec.
See http://www.ilbcfreeware.org/software.html
and http://www.ietf.org/rfc/rfc3951.txt

Place the awk script (courtesy of Wenju Jiang, Columbia University) and
the IETF rfc3951.txt file in the same directory, and then type 
the following command:

awk -f extract-cfile.awk rfc3951.txt

Correct an error in file constants.c:
After line 13    #include "iLBC_define.h"
add the following line:
   #include "constants.h"

The end of file syntFilter.c contains after line 68 text that is not 
source code.

Source code was formated with indent:
indent -kr -i2 -nlp -ci2 -l72 -lc72 -nut *.c *.h