Add maxrate and bufsize specifications for iPod presets. I omitted these

originally as I thought x264 set these automatically when specifying a level.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@16629 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

ffpresets/libx264-ipod320.ffpreset

@@ -2,3 +2,5 @@ coder=0
 bf=0
 flags2=-wpred-dct8x8
 level=13
+maxrate=768000
+bufsize=3000000

ffpresets/libx264-ipod640.ffpreset

@@ -3,3 +3,5 @@ bf=0
 refs=1
 flags2=-wpred-dct8x8
 level=30
+maxrate=10000000
+bufsize=10000000