Added webrtc audio processing library

Only the modules necessary for audio processing have been imported:
 src/common_audio/
 src/modules/audio_processing/
 src/modules/interface/
 src/system_wrappers/
 src/typedefs.h
 src/common_types.h
 Android.mk
 android-webrtc.mk

Android.mk and android-webrtc.mk have been modified to build only the
audio processing modules.

Files for Windows compatibility have been removed from system_wrappers.
fft_ARM9E directory has been removed from
src/common_audio/signal_processing_library/main/source/

SVN checkout at working revision 180.

Change-Id: I952373750f2c500d37f99aab4557aa84597d11b8
261 files changed
tree: 07f7cbe7ec1704fd0623f6e07c6a4a47302df56b
  1. src/
  2. android-webrtc.mk
  3. Android.mk
  4. MODULE_LICENSE_BSD
  5. NOTICE