add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
(cherry picked from commit 12c14cd4)

libavformat/avformat.h

@@ -472,6 +472,8 @@ typedef struct AVIndexEntry {
  * even when user did not explicitly ask for subtitles.
  */
 #define AV_DISPOSITION_FORCED    0x0040
+#define AV_DISPOSITION_HEARING_IMPAIRED  0x0080  /**< stream for hearing impaired audiences */
+#define AV_DISPOSITION_VISUAL_IMPAIRED   0x0100  /**< stream for visual impaired audiences */
 
 /**
  * Stream structure.

libavformat/version.h

@@ -24,7 +24,7 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR 52
-#define LIBAVFORMAT_VERSION_MINOR 98
+#define LIBAVFORMAT_VERSION_MINOR 99
 #define LIBAVFORMAT_VERSION_MICRO  0
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \