iOS port of opencore-amr
Refer to README for opencore-amr info which is from original package.
Use build_ios_xcode6.sh to build. Current AppStore submission requires Xcode 7.
Build_ios_*.sh is modified from http://blog.csdn.net/favormm/article/details/6772097
Note that AMR-NB is for narrow band http://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec
For AMR-WB encoding, refer to http://sourceforge.net/projects/opencore-amr/files/vo-amrwbenc/ or AMR Codecs as Shared Libraries http://www.penguin.cz/~utx/amr