Delete unnecessary 'extern' keywords.

[ffmpeg] / libavformat / asf.h

diff --git a/libavformat/asf.h b/libavformat/asf.h
index 3421a089626a513282827626c0832b562854c2df..4ccae1091ad3a7cd6a9ec664e2252f7afb646584 100644 (file)
--- 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"
 
@@ -53,7 +56,7 @@ typedef struct {
     uint64_t send_time;         /**< time to send file, in 100-nanosecond units
                                  *   invalid if broadcasting (could be ignored) */
     uint32_t preroll;           /**< timestamp of the first packet, in milliseconds
-                                 *   if nonzero - substract from time */
+                                 *   if nonzero - subtract from time */
     uint32_t ignore;            ///< preroll is 64bit - but let's just ignore it
     uint32_t flags;             /**< 0x01 - broadcast
                                  *   0x02 - seekable
@@ -94,7 +97,7 @@ typedef struct {
     uint8_t packet_buf[PACKET_SIZE];
     ByteIOContext pb;
     /* only for reading */
-    uint64_t data_offset;                ///< begining of the first data packet
+    uint64_t data_offset;                ///< beginning of the first data packet
     uint64_t data_object_offset;         ///< data object offset (excl. GUID & size)
     uint64_t data_object_size;           ///< size of the data object
     int index_read;
@@ -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 /* AVFORMAT_ASF_H */