vf_libopencv: add missing headers.

Fix build after b74a1da4.

diff --git a/libavfilter/vf_libopencv.c b/libavfilter/vf_libopencv.c
index b6dcd191ae6ff3eae9875d690d13e6c238291d94..d38b5845bd04fe7c0a7b953c56a3cfe78166d7a2 100644 (file)
--- a/libavfilter/vf_libopencv.c
+++ b/libavfilter/vf_libopencv.c
@@ -30,6 +30,8 @@
 #include "libavutil/avstring.h"
 #include "libavutil/file.h"
 #include "avfilter.h"
+#include "formats.h"
+#include "video.h"
 
 static void fill_iplimage_from_picref(IplImage *img, const AVFilterBufferRef *picref, enum PixelFormat pixfmt)
 {