package/freeswitch: enable video support

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Thomas: fix missing comma in license information.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/freeswitch/0001-libvpx-cross.patch

@@ -0,0 +1,29 @@
+Fix cross-compiling libvpx
+
+Freeswitch since version 1.6.7 only uses an in-tree-version of libvpx:
+https://freeswitch.org/fisheye/changelog/freeswitch?cs=febe0f8dacea2d2a31902b3dc469be757f8c3c4d
+
+It is not possible to use an external version of libvpx anymore.
+Unfortunately the freeswitch build system has no support for cross-
+compiling libvpx so we need to patch Makefile to pass CROSS from
+package/freeswitch/freeswitch.mk and add target=generic-gnu as
+configure parameter:
+https://freeswitch.org/stash/projects/FS/repos/freeswitch/browse/libs/libvpx/README#110
+
+And yes, autoreconf is also broken, so we patch Makefile.in instead
+of Makefile.am.
+
+Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
+
+diff -uNr freeswitch-1.6.7.org/Makefile.in freeswitch-1.6.7/Makefile.in
+--- freeswitch-1.6.7.org/Makefile.in	2016-04-01 18:09:54.000000000 +0200
++++ freeswitch-1.6.7/Makefile.in	2016-04-22 20:11:37.938961730 +0200
+@@ -3491,7 +3491,7 @@
+ 	cd libs/libzrtp && $(MAKE)
+ 
+ libs/libvpx/Makefile:
+-	cd libs/libvpx && CC="$(CC)" CXX="$(CXX)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" LDFLAGS="$(LDFLAGS)" ./configure --enable-pic --disable-docs --disable-examples --disable-install-bins --disable-install-srcs --disable-unit-tests --extra-cflags="$(VISIBILITY_FLAG)"
++	cd libs/libvpx && CROSS=$(CROSS) CC="$(CC)" CXX="$(CXX)" CFLAGS="$(CFLAGS)" CXXFLAGS="$(CXXFLAGS)" LDFLAGS="$(LDFLAGS)" ./configure --target=generic-gnu --enable-pic --disable-docs --disable-examples --disable-install-bins --disable-install-srcs --disable-unit-tests --extra-cflags="$(VISIBILITY_FLAG)"
+ 
+ libs/libvpx/libvpx.a: libs/libvpx/Makefile
+ 	@cd libs/libvpx && $(MAKE)

package/freeswitch/Config.in

@@ -5,6 +5,8 @@ config BR2_PACKAGE_FREESWITCH
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	depends on BR2_USE_MMU # apr, included in freeswitch source
 	depends on BR2_USE_WCHAR # libuuid
+	select BR2_PACKAGE_FFMPEG_AVRESAMPLE if BR2_PACKAGE_FFMPEG
+	select BR2_PACKAGE_FFMPEG_SWSCALE if BR2_PACKAGE_FFMPEG
 	select BR2_PACKAGE_LIBCURL
 	select BR2_PACKAGE_JPEG
 	# src/mod/applications/mod_cv/mod_cv.cpp includes

package/freeswitch/freeswitch.mk

@@ -69,8 +69,6 @@ FREESWITCH_CONF_ENV += \
 	ac_cv_gcc_supports_w_no_unused_result=no
 
 FREESWITCH_CONF_OPTS = \
-	--disable-libvpx \
-	--disable-libyuv \
 	--without-erlang \
 	--enable-fhs \
 	--without-python \
@@ -284,4 +282,15 @@ ifeq ($(BR2_PACKAGE_XZ),y)
 FREESWITCH_DEPENDENCIES += xz
 endif
 
+ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_4_8)$(BR2_PACKAGE_FFMPEG),yy)
+FREESWITCH_LICENSE := $(FREESWITCH_LICENSE), BSD-3c (libvpx, libyuv)
+FREESWITCH_LICENSE_FILES += libs/libvpx/LICENSE libs/libyuv/LICENSE
+FREESWITCH_CONF_OPTS += --enable-libvpx --enable-libyuv
+FREESWITCH_DEPENDENCIES += host-yasm ffmpeg
+FREESWITCH_ENABLED_MODULES += applications/mod_av applications/mod_fsv
+FREESWITCH_MAKE_ENV += CROSS=$(TARGET_CROSS)
+else
+FREESWITCH_CONF_OPTS += --disable-libvpx --disable-libyuv
+endif
+
 $(eval $(autotools-package))