Add FFMPEG_ prefix to all multiple inclusion guards.

Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk

libpostproc/postprocess.h

@@ -18,8 +18,8 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifndef POSTPROCESS_H
-#define POSTPROCESS_H
+#ifndef FFMPEG_POSTPROCESS_H
+#define FFMPEG_POSTPROCESS_H
 
 /**
  * @file postprocess.h
@@ -75,4 +75,4 @@ void pp_free_context(pp_context_t *ppContext);
 
 #define PP_PICT_TYPE_QP2  0x00000010 ///< MPEG2 style QScale
 
-#endif /* POSTPROCESS_H */
+#endif /* FFMPEG_POSTPROCESS_H */

libpostproc/postprocess_internal.h

@@ -23,8 +23,8 @@
  * internal api header.
  */
 
-#ifndef POSTPROCESS_INTERNAL_H
-#define POSTPROCESS_INTERNAL_H
+#ifndef FFMPEG_POSTPROCESS_INTERNAL_H
+#define FFMPEG_POSTPROCESS_INTERNAL_H
 
 #include "avutil.h"
 #include "postprocess.h"
@@ -186,4 +186,4 @@ static inline void linecpy(void *dest, void *src, int lines, int stride)
         }
 }
 
-#endif // POSTPROCESS_INTERNAL_H
+#endif /* FFMPEG_POSTPROCESS_INTERNAL_H */