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/

Fixed x86 build.

SVN checkout at working revision 180.

Change-Id: If650f61d96557be8247b17eb4f4d32b7a6ba025d

1 files changed, 47 insertions, 0 deletions

diff --git a/src/system_wrappers/source/rw_lock_linux.cc b/src/system_wrappers/source/rw_lock_linux.cc
new file mode 100644
index 0000000000..084dce8618
--- /dev/null
+++ b/src/system_wrappers/source/rw_lock_linux.cc
@@ -0,0 +1,47 @@
+/*
+ *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "rw_lock_linux.h"
+
+namespace webrtc {
+RWLockLinux::RWLockLinux() : _lock()
+{
+}
+
+RWLockLinux::~RWLockLinux()
+{
+    pthread_rwlock_destroy(&_lock);
+}
+
+int RWLockLinux::Init()
+{
+    return pthread_rwlock_init(&_lock, 0);
+}
+
+void RWLockLinux::AcquireLockExclusive()
+{
+    pthread_rwlock_wrlock(&_lock);
+}
+
+void RWLockLinux::ReleaseLockExclusive()
+{
+    pthread_rwlock_unlock(&_lock);
+}
+
+void RWLockLinux::AcquireLockShared()
+{
+    pthread_rwlock_rdlock(&_lock);
+}
+
+void RWLockLinux::ReleaseLockShared()
+{
+    pthread_rwlock_unlock(&_lock);
+}
+} // namespace webrtc