graphics/ImageMagick[6-7]: optionize the dependency on ffmpeg

- Make an option for FFMPEG, and do not enable it by default.

- Do not bump PORTREVISION: pkg will take care of it, and ports users
  may rebuild it if needed.

- Note: there is no simple way to deactivate this option when ffmpeg is
  already installed.

PR:		256215
Reported by:	Toshimichi Masubuchi (ImageMagick7) and gessel (6)
Approved by:	maintainer’s time-out

Author: thierry-FreeBSD

graphics/ImageMagick6/Makefile

@@ -32,8 +32,7 @@ COMMENT=	Image processing tools (legacy version)
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-LIB_DEPENDS=	libltdl.so:devel/libltdl	\
-		libavutil.so:multimedia/ffmpeg
+LIB_DEPENDS=	libltdl.so:devel/libltdl
 
 TESTS_DEPENDS=	gsfonts>=0:print/gsfonts
 
@@ -63,7 +62,7 @@ SAMPLE_FILES=	coder.xml colors.xml delegates.xml log.xml magic.xml mime.xml \
 PLIST_SUB=	PORTVERSION=${PORTVERSION:R}
 
 OPTIONS_SUB=	yes
-OPTIONS_DEFINE=	BZIP2 DOCS DJVU FFTW FONTCONFIG FPX FREETYPE \
+OPTIONS_DEFINE=	BZIP2 DOCS DJVU FFMPEG FFTW FONTCONFIG FPX FREETYPE \
 		GRAPHVIZ GSLIB HEIF JPEG2000 JBIG JPEG LCMS2 LZMA LQR MODULES \
 		OPENEXR OPENMP PANGO PDF PERL PNG RAQM SVG TESTS TIFF WEBP WMF \
 		THREADS X11 16BIT_PIXEL HDRI RAW
@@ -87,6 +86,8 @@ PLIST_SUB+=		QBIT=${_QBIT}
 BZIP2_DESC=		bzip2 compressed MIFF images
 BZIP2_CONFIGURE_WITH=	bzlib
 
+FFMPEG_DESC=		Video CODEC support from FFmpeg
+
 FFTW_CONFIGURE_WITH=	fftw
 FFTW_LIB_DEPENDS=	libfftw3.so:math/fftw3
 
@@ -265,6 +266,11 @@ CONFIGURE_ARGS+=	--without-djvu
 PLIST_SUB+=		DJVU="@comment "
 .endif
 
+.if ${PORT_OPTIONS:MFFMPEG}
+BUILD_DEPENDS+=		ffmpeg:multimedia/ffmpeg
+RUN_DEPENDS+=		ffmpeg:multimedia/ffmpeg
+.endif
+
 .if ${PORT_OPTIONS:MGSLIB}
 CONFIGURE_ARGS+=	--with-gslib
 . if ${PORT_OPTIONS:MX11}

graphics/ImageMagick7/Makefile

@@ -32,8 +32,7 @@ LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libltdl.so:devel/libltdl	\
-		libzip.so:archivers/libzip	\
-		libavutil.so:multimedia/ffmpeg
+		libzip.so:archivers/libzip
 
 TESTS_DEPENDS=	gsfonts>=0:print/gsfonts
 
@@ -62,7 +61,7 @@ SAMPLE_FILES=	colors.xml delegates.xml log.xml mime.xml policy.xml \
 PLIST_SUB=	PORTVERSION=${PORTVERSION:R}
 
 OPTIONS_SUB=	yes
-OPTIONS_DEFINE=	BZIP2 DOCS DJVU FFTW FONTCONFIG FPX FREETYPE \
+OPTIONS_DEFINE=	BZIP2 DOCS DJVU FFMPEG FFTW FONTCONFIG FPX FREETYPE \
 		GRAPHVIZ GSLIB JPEG2000 JBIG JPEG LCMS2 LZMA LQR MODULES \
 		OPENEXR OPENMP PANGO PDF PERL PNG RAQM SVG TESTS TIFF WEBP WMF \
 		THREADS X11 16BIT_PIXEL HDRI HEIF RAW
@@ -72,6 +71,7 @@ OPTIONS_DEFAULT=	16BIT_PIXEL BZIP2 FFTW FONTCONFIG FREETYPE \
 
 DJVU_DESC=		DJVU format support (needs THREADS)
 GSLIB_DESC=		libgs (Postscript SHLIB) support
+FFMPEG_DESC=		VIDEO codec support as FFmpeg
 TESTS_DESC=		Run bundled self-tests after build
 #SIMD_CONFIGURE_WITH=	gcc-arch
 CONFIGURE_ARGS+=	--without-gcc-arch
@@ -302,6 +302,11 @@ USES+=		ghostscript
 RUN_DEPENDS+=	gsfonts>=0:print/gsfonts
 .endif
 
+.if ${PORT_OPTIONS:MFFMPEG}
+BUILD_DEPENDS+=		ffmpeg:multimedia/ffmpeg
+RUN_DEPENDS+=		ffmpeg:multimedia/ffmpeg
+.endif
+
 .if ${PORT_OPTIONS:MDOCS}
 INSTALL_TARGET=	install-strip install-docDATA install-data-html
 .else