multimedia/bino: Move to FFmpeg 4

Fails to build with FFmpeg 6

PR:		270214
Approved by:	portmgr (blanket, build fix)
Sponsored by:	Blinkinblox

multimedia/bino/Makefile

@@ -12,7 +12,7 @@ LICENSE=	GPLv3+
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libass.so:multimedia/libass \
-		libavformat.so:multimedia/ffmpeg \
+		libavformat.so.58:multimedia/ffmpeg4 \
 		libopenal.so:audio/openal-soft
 
 USES=		autoreconf compiler:c++11-lang desktop-file-utils gl gmake \
@@ -22,6 +22,9 @@ GNU_CONFIGURE=	yes
 USE_QT=		buildtools:build core gui opengl widgets
 USE_CXXSTD=	c++11
 
+CONFIGURE_ENV+=	PKG_CONFIG_PATH="${LOCALBASE}/ffmpeg4/libdata/pkgconfig"
+MAKE_ENV+=	PKG_CONFIG_PATH="${LOCALBASE}/ffmpeg4/libdata/pkgconfig"
+
 # no port fow equalizer now, lirc detecting not working
 CONFIGURE_ARGS=	--without-equalizer --without-lirc --docdir=${DOCSDIR}