multimedia/simplescreenrecorder: Improve and add to options

* Add JACK option
* Make ALSA off by default
* Add V4L option for dependency on multimedia/libv4l
* Add option group AUDIO

multimedia/simplescreenrecorder/Makefile

@@ -2,6 +2,7 @@
 
 PORTNAME=	simplescreenrecorder
 DISTVERSION=	0.4.3
+PORTREVISION=	1
 CATEGORIES=	multimedia
 
 MAINTAINER=	yuri@FreeBSD.org
@@ -11,22 +12,25 @@ LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 BUILD_DEPENDS=	v4l_compat>0:multimedia/v4l_compat
-LIB_DEPENDS=	libavformat.so:multimedia/ffmpeg \
-		libv4l2.so:multimedia/libv4l
+LIB_DEPENDS=	libavformat.so:multimedia/ffmpeg
 
 USES=		cmake compiler:c++11-lang pkgconfig qt:5 xorg
+USE_QT=		core gui widgets x11extras buildtools_build linguisttools_build qmake_build
+USE_XORG=	x11 xext xfixes xi xinerama
+
 USE_GITHUB=	yes
 GH_ACCOUNT=	MaartenBaert
 GH_PROJECT=	ssr
-USE_QT=		core gui widgets x11extras buildtools_build linguisttools_build qmake_build
-USE_XORG=	x11 xext xfixes xi xinerama
 
 CMAKE_ON=	WITH_QT5
 CMAKE_OFF=	WITH_GLINJECT  # doesn't yet work on FreeBSD: https://github.com/MaartenBaert/ssr/issues/586#issuecomment-343780107
 CMAKE_OFF+=	WITH_OPENGL_RECORDING  # extra option requiried when GLInject is off, because this makes OpenGL recording dysfunctional
 
-OPTIONS_DEFINE=		ALSA PULSEAUDIO JACK
-OPTIONS_DEFAULT=	ALSA PULSEAUDIO
+OPTIONS_DEFINE=		V4L
+OPTIONS_MULTI=		AUDIO # MULTI because project doesn't allow to build with no backends
+OPTIONS_MULTI_AUDIO=	ALSA PULSEAUDIO JACK
+OPTIONS_DEFAULT=	PULSEAUDIO JACK V4L
+AUDIO_DESC=		Audio backends:
 
 ALSA_CMAKE_BOOL=	WITH_ALSA
 ALSA_LIB_DEPENDS=	libasound.so:audio/alsa-lib
@@ -37,6 +41,9 @@ PULSEAUDIO_LIB_DEPENDS=	libpulse.so:audio/pulseaudio
 JACK_CMAKE_BOOL=	WITH_JACK
 JACK_LIB_DEPENDS=	libjack.so:audio/jack
 
+V4L_CMAKE_BOOL=		WITH_V4L2
+V4L_LIB_DEPENDS=	libv4l2.so:multimedia/libv4l
+
 post-install:  # https://github.com/MaartenBaert/ssr/issues/609
 	@${RM} ${STAGEDIR}${PREFIX}/man/man1/ssr-glinject.*