libvpx: Add the library header

Unbreak make checkheaders

diff --git a/libavcodec/libvpx.h b/libavcodec/libvpx.h
index b990b769b3db9975902e005302dd0e4c4e0a7e71..b437f37c81eee69b2580724eb96b62a0453293b2 100644 (file)
--- a/libavcodec/libvpx.h
+++ b/libavcodec/libvpx.h
@@ -21,6 +21,8 @@
 #ifndef AVCODEC_LIBVPX_H
 #define AVCODEC_LIBVPX_H
 
+#include <vpx/vpx_codec.h>
+
 #include "avcodec.h"
 
 enum AVPixelFormat ff_vpx_imgfmt_to_pixfmt(vpx_img_fmt_t img);