webrtc: Add gobject-introspection integration

https://bugzilla.gnome.org/show_bug.cgi?id=794347

gst-libs/gst/webrtc/Makefile.am

@@ -52,3 +52,57 @@ libgstwebrtc_@GST_API_VERSION@_la_LDFLAGS = \
 	$(GST_LT_LDFLAGS)
 
 include $(top_srcdir)/common/gst-glib-gen.mak
+
+if HAVE_INTROSPECTION
+BUILT_GIRSOURCES = GstWebRTC-@GST_API_VERSION@.gir
+
+gir_headers=$(patsubst %,$(srcdir)/%, $(libgstwebrtc_@GST_API_VERSION@include_HEADERS))
+gir_sources=$(patsubst %,$(srcdir)/%, $(libgstwebrtc_@GST_API_VERSION@_la_SOURCES))
+
+GstWebRTC-@GST_API_VERSION@.gir: $(INTROSPECTION_SCANNER) libgstwebrtc-@GST_API_VERSION@.la
+	$(AM_V_GEN)GST_PLUGIN_SYSTEM_PATH_1_0="" GST_PLUGIN_PATH_1_0="" GST_REGISTRY_UPDATE=no GI_SCANNER_DISABLE_CACHE=yes \
+		CPPFLAGS="$(CPPFLAGS)" CFLAGS="$(CFLAGS)" LDFLAGS="$(LDFLAGS)" CC="$(CC)" PKG_CONFIG="$(PKG_CONFIG)" DLLTOOL="$(DLLTOOL)" \
+		PKG_CONFIG_PATH="$(GST_PKG_CONFIG_PATH)" \
+		$(INTROSPECTION_SCANNER) -v --namespace GstWebRTC \
+		--nsversion=@GST_API_VERSION@ \
+		--warn-all \
+		--strip-prefix=Gst \
+		-I$(top_srcdir)/gst-libs \
+		-I$(top_builddir)/gst-libs \
+		--c-include "gst/webrtc/webrtc.h" \
+		--add-include-path=$(top_builddir)/gst-libs \
+		--add-include-path=`PKG_CONFIG_PATH="$(GST_PKG_CONFIG_PATH)" $(PKG_CONFIG) --variable=girdir gstreamer-1.0` \
+		--add-include-path=`PKG_CONFIG_PATH="$(GST_PKG_CONFIG_PATH)" $(PKG_CONFIG) --variable=girdir gstreamer-sdp-1.0` \
+		--library-path=$(top_builddir)/gst-libs \
+		--library=libgstwebrtc-@GST_API_VERSION@.la \
+		--include=Gst-@GST_API_VERSION@ \
+		--include=GstSdp-@GST_API_VERSION@ \
+		--libtool="${LIBTOOL}" \
+		--pkg gstreamer-@GST_API_VERSION@ \
+		--pkg gstreamer-sdp-@GST_API_VERSION@ \
+		--pkg-export gstreamer-webrtc-@GST_API_VERSION@ \
+		--add-init-section="$(INTROSPECTION_INIT)" \
+		--output $@ \
+		$(gir_headers) \
+		$(gir_sources)
+
+# INTROSPECTION_GIRDIR/INTROSPECTION_TYPELIBDIR aren't the right place to
+# install anything - we need to install inside our prefix.
+girdir = $(datadir)/gir-1.0
+gir_DATA = $(BUILT_GIRSOURCES)
+
+typelibsdir = $(libdir)/girepository-1.0/
+
+typelibs_DATA = $(BUILT_GIRSOURCES:.gir=.typelib)
+
+%.typelib: %.gir $(INTROSPECTION_COMPILER)
+	$(AM_V_GEN)PKG_CONFIG_PATH="$(GST_PKG_CONFIG_PATH)" \
+		$(INTROSPECTION_COMPILER) \
+		--includedir=$(srcdir)/gst-libs \
+		--includedir=$(builddir)/gst-libs \
+		--includedir=`PKG_CONFIG_PATH="$(GST_PKG_CONFIG_PATH)" $(PKG_CONFIG) --variable=girdir gstreamer-1.0` \
+		--includedir=`PKG_CONFIG_PATH="$(GST_PKG_CONFIG_PATH)" $(PKG_CONFIG) --variable=girdir gstreamer-sdp-1.0` \
+		$(INTROSPECTION_COMPILER_OPTS) $< -o $(@F)
+
+CLEANFILES += $(BUILT_GIRSOURCES) $(typelibs_DATA)
+endif

gst-libs/gst/webrtc/meson.build

@@ -40,7 +40,7 @@ gstwebrtc_c = custom_target('gstwebrtcenum_c',
   command : [mkenums, glib_mkenums, '@OUTPUT@', '@INPUT@'])
 webrtc_gen_sources = [gstwebrtc_h]
 
-gstwebrtc_dependencies = [gstbase_dep, gstpbutils_dep, gstsdp_dep]
+gstwebrtc_dependencies = [gstbase_dep, gstsdp_dep]
 
 gstwebrtc = library('gstwebrtc-' + api_version,
   webrtc_sources, gstwebrtc_c, gstwebrtc_h,
@@ -52,8 +52,25 @@ gstwebrtc = library('gstwebrtc-' + api_version,
   dependencies : gstwebrtc_dependencies,
 )
 
+if build_gir
+  webrtc_gir = gnome.generate_gir(gstwebrtc,
+    sources : gstwebrtc_sources + gstwebrtc_headers,
+    namespace : 'GstWebRTC',
+    nsversion : api_version,
+    identifier_prefix : 'Gst',
+    symbol_prefix : 'gst',
+    export_packages : 'gstreamer-webrtc-1.0',
+    includes : ['Gst-1.0', 'GstSdp-1.0'],
+    install : true,
+    extra_args : gir_init_section + ['-DGST_USE_UNSTABLE_API'] + ['--c-include=gst/webrtc/webrtc.h'],
+    dependencies : [gstbase_dep, gstsdp_dep]
+  )
+  webrtc_gen_sources += webrtc_gir
+endif
+
 install_headers(webrtc_headers, subdir : 'gstreamer-1.0/gst/webrtc')
 
 gstwebrtc_dep = declare_dependency(link_with: gstwebrtc,
   include_directories : libsinc,
+  sources: webrtc_gen_sources,
   dependencies: gstwebrtc_dependencies)