Fix p-frame translation issue

PPM.py

@@ -319,13 +319,12 @@ class PPM:
 		#WIP - framemove:
 		FrameMove = [0,0]
 		if Unknown & 0x2:#doesn't work 100%...
-			print "Unknown tags:", Unknown, "(FrameMove) at offset ",offset-1
+			print "FrameMove at offset ",offset-1
 			
-			move = AscDec(data[offset:offset+2], True)
+			move_x = AscDec(data[offset+0:offset+1], True)
-			if move > 128:
+			move_y = AscDec(data[offset+1:offset+2], True)
-				FrameMove[0] = move - 256
+			FrameMove[0] = move_x if move_x <= 127 else move_x-256
-			else:
+			FrameMove[1] = move_y if move_y <= 127 else move_y-256
-				FrameMove[1] = 0-move
 			offset += 2
 		elif Unknown:
 			print "Unknown tags:",Unknown,"at offset ",offset-1

ReadMe.txt

@@ -2,10 +2,10 @@
   ==            By pbsds           ==  
   ==  aka Peder Bergebakken Sundt  ==  
 
-(with some additions from WORD559)
+ with video-encode additions by WORD559
 
 --VERSIONS--
-PPM.py:         v1.4
+PPM.py:         v1.5
 UGO.py:         v0.93
 NTFT.py:        v0.95
 
@@ -35,3 +35,4 @@ See License.txt or http://www.gnu.org/licenses/agpl-3.0.html for more informatio
 -Remark for helping me understanding the 8x8 tiling on the preview images.
 -JSAfive for supplying .tmb and .ugo files
 -Austin Burk, Midmad on hatena haiku and WDLmaster on hcs64.com for determining the sound codec
+-jaames, for proper p-frame translation