Re #1954: Add WebRTC to third party component

* Add build config for GNU build systems



git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@5428 74dad513-b988-da41-8d7b-12977e46ad98

3 files changed, 142 insertions, 0 deletions

diff --git a/third_party/build/os-auto.mak.in b/third_party/build/os-auto.mak.in
index 66653fa1..5eac2fd2 100644
--- a/third_party/build/os-auto.mak.in
+++ b/third_party/build/os-auto.mak.in
@@ -64,3 +64,43 @@ else
 DIRS += yuv
 endif
 endif
+
+ifneq (@ac_no_webrtc@,1)
+ifeq (@ac_external_webrtc@,1)
+# External webrtc
+else
+DIRS += webrtc
+WEBRTC_OTHER_CFLAGS = -fexceptions -DWEBRTC_POSIX=1 @ac_webrtc_cflags@
+ifneq ($(findstring sse2,@ac_webrtc_instset@),)
+    WEBRTC_SRC = \
+    	      modules/audio_processing/aec/aec_core_sse2.o		 \
+	      modules/audio_processing/aec/aec_rdft_sse2.o	         \
+	      modules/audio_processing/aecm/aecm_core_c.o	         \
+	      modules/audio_processing/ns/nsx_core_c.o	                 \
+	      system_wrappers/source/cpu_features.o
+else ifneq ($(findstring neon,@ac_webrtc_instset@),)
+    WEBRTC_SRC = \
+       	      modules/audio_processing/aec/aec_core_neon.o               \
+	      modules/audio_processing/aec/aec_rdft_neon.o               \
+	      modules/audio_processing/aecm/aecm_core_c.o                \
+	      modules/audio_processing/aecm/aecm_core_neon.o             \
+	      modules/audio_processing/ns/nsx_core_c.o                   \
+	      modules/audio_processing/ns/nsx_core_neon.o                \
+	      common_audio/signal_processing/cross_correlation_neon.o    \
+	      common_audio/signal_processing/downsample_fast_neon.o      \
+	      common_audio/signal_processing/min_max_operations_neon.o
+    WEBRTC_OTHER_CFLAGS += -DWEBRTC_HAS_NEON
+else ifneq ($(findstring mips,@ac_webrtc_instset@),)
+    WEBRTC_SRC = \
+              modules/audio_processing/aec/aec_core_mips.o               \
+	      modules/audio_processing/aec/aec_rdft_mips.o               \
+	      modules/audio_processing/aecm/aecm_core_mips.o             \
+	      modules/audio_processing/ns/nsx_core_mips.o                \
+	      common_audio/signal_processing/cross_correlation_mips.o    \
+	      common_audio/signal_processing/downsample_fast_mips.o      \
+	      common_audio/signal_processing/min_max_operations_mips.o
+
+    WEBRTC_OTHER_CFLAGS += -DMIPS_FPU_LE
+endif
+endif
+endif
diff --git a/third_party/build/webrtc/Makefile b/third_party/build/webrtc/Makefile
new file mode 100644
index 00000000..3e654379
--- /dev/null
+++ b/third_party/build/webrtc/Makefile
@@ -0,0 +1,100 @@
+include ../../../build.mak
+include ../../../build/common.mak
+include ../os-$(OS_NAME).mak
+
+export LIBDIR := ../../lib
+
+RULES_MAK := $(PJDIR)/build/rules.mak
+
+export WEBRTC_LIB := libwebrtc-$(TARGET_NAME)$(LIBEXT)
+
+ifeq ($(PJ_SHARED_LIBRARIES),)
+else
+export WEBRTC_SONAME := libwebrtc.$(SHLIB_SUFFIX)
+export WEBRTC_SHLIB := $(WEBRTC_SONAME).$(PJ_VERSION_MAJOR)
+endif
+
+###############################################################################
+# Gather all flags.
+#
+export _CFLAGS 	:= $(CC_CFLAGS) $(OS_CFLAGS) $(HOST_CFLAGS) $(M_CFLAGS) \
+		   $(CFLAGS) $(CC_INC). $(CC_INC)../../webrtc/src       \
+		   $(CC_INC)../../../pjlib/include
+export _CXXFLAGS:= $(_CFLAGS) $(CC_CXXFLAGS) $(OS_CXXFLAGS) $(M_CXXFLAGS) \
+		   $(HOST_CXXFLAGS) $(CXXFLAGS)
+export _LDFLAGS := $(CC_LDFLAGS) $(OS_LDFLAGS) $(M_LDFLAGS) $(HOST_LDFLAGS) \
+		   $(LDFLAGS) 
+
+export WEBRTC_SRCDIR = ../../webrtc/src/webrtc/
+export WEBRTC_OBJS = \
+	modules/audio_processing/aec/aec_core.o                    \
+	modules/audio_processing/aec/aec_rdft.o                    \
+	modules/audio_processing/aec/aec_resampler.o               \
+	modules/audio_processing/aec/echo_cancellation.o           \
+	modules/audio_processing/aecm/aecm_core.o                  \
+	modules/audio_processing/aecm/echo_control_mobile.o        \
+	modules/audio_processing/ns/noise_suppression.o            \
+	modules/audio_processing/ns/noise_suppression_x.o          \
+	modules/audio_processing/ns/ns_core.o                      \
+	modules/audio_processing/ns/nsx_core.o                     \
+	modules/audio_processing/utility/delay_estimator_wrapper.o \
+	modules/audio_processing/utility/delay_estimator.o         \
+	common_audio/fft4g.o                                       \
+	common_audio/ring_buffer.o                                 \
+	common_audio/signal_processing/complex_bit_reverse.o       \
+	common_audio/signal_processing/complex_fft.o               \
+	common_audio/signal_processing/copy_set_operations.o       \
+	common_audio/signal_processing/cross_correlation.o         \
+	common_audio/signal_processing/division_operations.o       \
+	common_audio/signal_processing/downsample_fast.o           \
+	common_audio/signal_processing/energy.o                    \
+	common_audio/signal_processing/get_scaling_square.o        \
+	common_audio/signal_processing/min_max_operations.o        \
+	common_audio/signal_processing/randomization_functions.o   \
+	common_audio/signal_processing/real_fft.o                  \
+	common_audio/signal_processing/spl_init.o                  \
+	common_audio/signal_processing/spl_sqrt.o                  \
+	common_audio/signal_processing/spl_sqrt_floor.o            \
+	common_audio/signal_processing/vector_scaling_operations.o \
+	$(WEBRTC_SRC)
+
+
+export WEBRTC_CFLAGS = $(_CFLAGS) $(WEBRTC_OTHER_CFLAGS)
+export WEBRTC_CXXFLAGS = $(WEBRTC_CFLAGS)
+
+
+export CC_OUT CC AR RANLIB HOST_MV HOST_RM HOST_RMDIR HOST_MKDIR OBJEXT LD LDOUT 
+###############################################################################
+# Main entry
+#
+# $(TARGET) is defined in os-$(OS_NAME).mak file in current directory.
+#
+TARGETS := $(WEBRTC_LIB) $(WEBRTC_SONAME)
+
+all: $(TARGETS)
+
+doc:
+	cd .. && doxygen docs/doxygen.cfg
+
+dep: depend
+distclean: realclean
+
+.PHONY: all dep depend clean realclean distclean
+.PHONY: $(TARGETS)
+.PHONY: $(WEBRTC_LIB) $(WEBRTC_SONAME)
+
+libwebrtc: $(WEBRTC_LIB)
+$(WEBRTC_SONAME): $(WEBRTC_LIB)
+$(WEBRTC_LIB) $(WEBRTC_SONAME):
+	$(MAKE) -f $(RULES_MAK) APP=WEBRTC app=libwebrtc $(subst /,$(HOST_PSEP),$(LIBDIR)/$@)
+
+clean print_lib:
+	$(MAKE) -f $(RULES_MAK) APP=WEBRTC app=libwebrtc $@
+
+realclean:
+	$(subst @@,$(subst /,$(HOST_PSEP),.webrtc-$(TARGET_NAME).depend),$(HOST_RMR))
+	
+	$(MAKE) -f $(RULES_MAK) APP=WEBRTC app=libwebrtc $@
+
+depend:
+	$(MAKE) -f $(RULES_MAK) APP=WEBRTC app=libwebrtc $@
diff --git a/third_party/build/webrtc/notes.txt b/third_party/build/webrtc/notes.txt
new file mode 100644
index 00000000..dc47aeba
--- /dev/null
+++ b/third_party/build/webrtc/notes.txt
@@ -0,0 +1,2 @@
+Notes:
+* Source code for webrtc from https://chromium.googlesource.com/external/webrtc circa Oct 2015.