iterative overlapped block based motion estimation for snow

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@4781 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

ffmpeg.c

@@ -2770,6 +2770,9 @@ const char *motion_str[] = {
     "phods",
     "epzs",
     "x1",
+    "hex",
+    "umh",
+    "iter",
     NULL,
 };
 

libavcodec/avcodec.h

@@ -289,7 +289,10 @@ enum Motion_Est_ID {
     ME_LOG,
     ME_PHODS,
     ME_EPZS,
-    ME_X1
+    ME_X1,
+    ME_HEX,
+    ME_UMH,
+    ME_ITER,
 };
 
 enum AVDiscard{