examples/filtering_video: add missing headers

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

diff --git a/doc/examples/filtering_video.c b/doc/examples/filtering_video.c
index b2191251b5fc3a5b101d6f3c2e4e4625c1811ec8..5a314b3127f922127ae7dd312046822a2878c9fa 100644 (file)
--- a/doc/examples/filtering_video.c
+++ b/doc/examples/filtering_video.c
@@ -29,6 +29,8 @@
 
 #define _XOPEN_SOURCE 600 /* for usleep */
 #include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
 
 #include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>