package/ffmpeg: add optional support for openjpeg

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/ffmpeg/ffmpeg.mk

@@ -53,7 +53,6 @@ FFMPEG_CONF_OPTS = \
 	--disable-libdc1394 \
 	--disable-libgsm \
 	--disable-libilbc \
-	--disable-libopenjpeg \
 	--disable-libvo-amrwbenc \
 	--disable-symver \
 	--disable-doc
@@ -369,6 +368,13 @@ else
 FFMPEG_CONF_OPTS += --disable-fontconfig
 endif
 
+ifeq ($(BR2_PACKAGE_OPENJPEG),y)
+FFMPEG_CONF_OPTS += --enable-libopenjpeg
+FFMPEG_DEPENDENCIES += openjpeg
+else
+FFMPEG_CONF_OPTS += --disable-libopenjpeg
+endif
+
 ifeq ($(BR2_PACKAGE_X264)$(BR2_PACKAGE_FFMPEG_GPL),yy)
 FFMPEG_CONF_OPTS += --enable-libx264
 FFMPEG_DEPENDENCIES += x264