Difference between revisions of "VC-1 Tables"

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(add scaling modes)
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''(Part of [[Understanding VC-1]])''
''(Part of [[Understanding VC-1]])''
== Scaling Modes ==
* 0: 1x1 = no scaling
* 1: 2x1 = horizontal scaling
* 2: 1x2 = vertical scaling
* 3: 2x2 = horizontal and vertical scaling


== Motion Vector Ranges ==
== Motion Vector Ranges ==

Revision as of 21:17, 15 April 2006

(Part of Understanding VC-1)

Scaling Modes

  • 0: 1x1 = no scaling
  • 1: 2x1 = horizontal scaling
  • 2: 1x2 = vertical scaling
  • 3: 2x2 = horizontal and vertical scaling

Motion Vector Ranges

  • Range #0:
    • x component range = -64..63
    • y component range = -32..31
  • Range #1:
    • x component range = -128..127
    • y component range = -64..63
  • Range #2:
    • x component range = -512..511
    • y component range = -128..127
  • Range #3:
    • x component range = -1024..1023
    • y component range = -256..255

Motion Vector Range VLC Table

code length   VLC    range #
    1          0        0
    2          2        1
    3          6        2
    3          7        3

B Fraction VLC Table