initial commit

.gitignore

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+/include
+/libs
+/depot_tools
+/webrtc-checkout

Makefile

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+WEBRTC_DIR ?= .
+WEBRTC_VERSION ?= m79
+WEBRTC_OUT ?= Release
+WEBRTC_GN_ARGS ?= \
+	is_debug=false \
+	use_sysroot=false \
+	rtc_include_tests=false \
+	is_clang=false \
+	treat_warnings_as_errors=false \
+	$(WEBRTC_GN_ARGS_EXTRA)
+WEBRTC_TARGETS ?= default $(WEBRTC_TARGETS_EXTRA)
+WEBRTC_LIBS ?= libwebrtc.a $(WEBRTC_LIBS_EXTRA)
+WEBRTC_INCLUDES = \
+	api audio base common_audio common_video logging media modules p2p pc \
+	rtc_base rtc_tools video common_types.h \
+	$(WEBRTC_INCLUDES_EXTRA)
+
+SETPATH = PATH=$(WEBRTC_DIR)/depot_tools:"$$PATH"
+RTC_STAMP_DEPOT = $(WEBRTC_DIR)/depot_tools/.stamp
+RTC_STAMP_REPO = $(WEBRTC_DIR)/webrtc-checkout/.stamp
+RTC_STAMP_VERSION = $(WEBRTC_DIR)/webrtc-checkout/.stamps/stamp-$(WEBRTC_VERSION)
+RTC_STAMP_COMPILE = $(WEBRTC_DIR)/webrtc-checkout/src/out/$(WEBRTC_OUT)/.stamp
+RTC_STAMP_INCLUDES = include/webrtc/.stamp
+
+all: include/webrtc/.stamp $(patsubst %,libs/%,$(WEBRTC_LIBS))
+
+# Get depot_tools, which contains all the tools required to work with Google software
+$(RTC_STAMP_DEPOT):
+	rm -rf $(WEBRTC_DIR)/depot_tools
+	git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git $(WEBRTC_DIR)/depot_tools
+	touch $@
+
+# Fetch the WebRTC project itself
+$(RTC_STAMP_REPO): $(RTC_STAMP_DEPOT)
+	rm -rf $(WEBRTC_DIR)/webrtc-checkout && mkdir $(WEBRTC_DIR)/webrtc-checkout
+	#
+	# Fetch webrtc, thit will take time...
+	cd $(WEBRTC_DIR)/webrtc-checkout && $(SETPATH) fetch --nohooks --no-history webrtc
+	touch $@
+
+# Check out the correct WebRTC branch/commit
+$(RTC_STAMP_VERSION): $(RTC_STAMP_REPO)
+	rm -rf $(WEBRTC_DIR)/webrtc-checkout/.stamps && mkdir $(WEBRTC_DIR)/webrtc-checkout/.stamps
+	cd $(WEBRTC_DIR)/webrtc-checkout/src && git checkout branch-heads/$(WEBRTC_VERSION)
+	#
+	# Sync webrtc, this will take time...
+	cd $(WEBRTC_DIR)/webrtc-checkout/src && $(SETPATH) gclient sync -D --nohooks
+	touch $@
+
+# Compile
+$(RTC_STAMP_COMPILE):
+	cd $(WEBRTC_DIR)/webrtc-checkout/src && $(SETPATH) gn gen out/$(WEBRTC_OUT) --args='$(WEBRTC_GN_ARGS)'
+	cd $(WEBRTC_DIR)/webrtc-checkout/src && $(SETPATH) ninja -C out/$(WEBRTC_OUT) $(WEBRTC_TARGETS)
+	touch $@
+
+# Includes
+$(RTC_STAMP_INCLUDES): $(RTC_STAMP_VERSION)
+	rm -rf include/webrtc && mkdir -p include/webrtc
+	rsync -m --recursive --include='*/' --include='*.h' --exclude='*' \
+		$(patsubst %,$(WEBRTC_DIR)/webrtc-checkout/src/%,$(WEBRTC_INCLUDES)) \
+		include/webrtc
+	touch $@
+
+# Libraries
+libs/%.a: $(WEBRTC_DIR)/webrtc-checkout/src/out/$(WEBRTC_OUT)/obj/%.a
+	@mkdir -p $(@D)
+	cp $< $@
+
+.PHONY: clean
+clean:
+	rm -rf $(WEBRTC_DIR)/depot_tools $(WEBRTC_DIR)/webrtc-checkout 
+	rm -rf include libs
+
+.PHONY: gn-clean
+gn-clean:
+	cd $(WEBRTC_DIR)/webrtc-checkout/src && $(SETPATH) gn clean out/$(WEBRTC_OUT)

README.md

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+# libwebrtc.mk
+
+This repo tries to make it a bit easier to create new WebRTC projects.
+It's intended to be used as a git submodule, and is an easy way to download
+and compile WebRTC in a way which can be embedded in a parent project.
+
+The WebRTC library will be compiled from source, and both the checkout process
+and the compile itself can take quite a while. Be patient.