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-rw-r--r--libavformat/asf.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/libavformat/asf.h b/libavformat/asf.h
index 3421a08962..6df02c24f1 100644
--- a/libavformat/asf.h
+++ b/libavformat/asf.h
@@ -18,6 +18,9 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#ifndef AVFORMAT_ASF_H
+#define AVFORMAT_ASF_H
+
#include <stdint.h>
#include "avformat.h"
@@ -282,3 +285,5 @@ static const GUID my_guid = {
#define ASF_PL_MASK_PAYLOAD_LENGTH_FIELD_SIZE 0xc0 //1100 0000
#define ASF_PL_FLAG_KEY_FRAME 0x80 //1000 0000
+
+#endif