add multiple inclusion guards to headers

Originally committed as revision 9345 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 5 insertions, 0 deletions

diff --git a/libavcodec/dcahuff.h b/libavcodec/dcahuff.h
index 2833d6789a..159520874b 100644
--- a/libavcodec/dcahuff.h
+++ b/libavcodec/dcahuff.h
@@ -20,6 +20,9 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#ifndef AVCODEC_DCAHUFF_H
+#define AVCODEC_DCAHUFF_H
+
 #include <stdint.h>
 #include <stdlib.h>
 
@@ -1069,3 +1072,5 @@ static const uint8_t* bitalloc_bits[10][8] = {
   { bitalloc_129_bits_a, bitalloc_129_bits_b, bitalloc_129_bits_c, bitalloc_129_bits_d,
     bitalloc_129_bits_e, bitalloc_129_bits_f, bitalloc_129_bits_g, NULL }
 };
+
+#endif