Support for Signal calls.

Merge in RedPhone

// FREEBIE

jni/android-webrtc.mk

@@ -0,0 +1,53 @@
+# 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.
+
+# These defines will apply to all source files
+# Think again before changing it
+MY_WEBRTC_COMMON_DEFS := \
+    '-DWEBRTC_TARGET_PC' \
+    '-DWEBRTC_LINUX' \
+    '-DWEBRTC_THREAD_RR' \
+    '-DWEBRTC_CLOCK_TYPE_REALTIME' \
+    '-DWEBRTC_ANDROID'
+#    The following macros are used by modules,
+#    we might need to re-organize them
+#    '-DWEBRTC_ANDROID_OPENSLES' [module audio_device]
+#    '-DNETEQ_VOICEENGINE_CODECS' [module audio_coding neteq]
+#    '-DWEBRTC_MODULE_UTILITY_VIDEO' [module media_file] [module utility]
+ifeq ($(TARGET_ARCH),arm)
+MY_WEBRTC_COMMON_DEFS += \
+    '-DWEBRTC_ARCH_ARM'
+#    '-DWEBRTC_DETECT_ARM_NEON' # only used in a build configuration without Neon
+# TODO(kma): figure out if the above define could be moved to NDK build only.
+
+# TODO(kma): test if the code under next two macros works with generic GCC compilers
+ifeq ($(ARCH_ARM_HAVE_NEON),true)
+MY_WEBRTC_COMMON_DEFS += \
+    '-DWEBRTC_ARCH_ARM_NEON'
+endif
+
+ifneq (,$(filter '-DWEBRTC_DETECT_ARM_NEON' '-DWEBRTC_ARCH_ARM_NEON', \
+    $(MY_WEBRTC_COMMON_DEFS)))
+WEBRTC_BUILD_NEON_LIBS := true
+# TODO(kma): Use MY_ARM_CFLAGS_NEON for Neon libraies in AECM, NS, and iSAC.
+MY_ARM_CFLAGS_NEON := \
+    -mfpu=neon \
+    -mfloat-abi=softfp \
+    -flax-vector-conversions
+endif
+
+ifeq ($(ARCH_ARM_HAVE_ARMV7A),true)
+MY_WEBRTC_COMMON_DEFS += \
+    '-DWEBRTC_ARCH_ARM_V7A'
+endif
+
+endif # ifeq ($(TARGET_ARCH),arm)
+
+#added for redphone
+
+#MY_WEBRTC_COMMON_DEFS += '-DNDEBUG'