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atrac3p:envelope_y_trees

envelop point Y coordinate trees

These trees are built as canonical huffman trees. Remember that negative values are 2's complement encoded and thus appear after the positive values in the trees.

envelope y tree

  • 0-3: 7 bit
  • 4: 5 bits
  • 5: 3 bits
  • 6: 4 bits
  • 7: 1 bits
  • 8: 3 bits
  • 9: 4 bits
  • 10,11: 6 bits
  • 12-15: 7 bits

delta y tree

  • -8..-5: 9 bits
  • -4: 7 bits
  • -3: 4 bits
  • -2: 2 bits
  • -1: 1 bit
  • 0: missing
  • +1: 3 bits
  • +2: 5 bits
  • +3: 7 bits
  • +4..+7: 9 bits

delta-to-master y tree

  • -8..-5: 9 bits
  • -4: 8 bits
  • -3: 7 bits
  • -2: 4 bits
  • -1: 3 bits
  • 0: 1 bit
  • +1: 2 bits
  • +2: 5 bits
  • +3: 8 bits
  • +4..+7: 9 bits

delta-to-prev-envelope y tree

  • -8..-5: 9 bits
  • -4: 7 bits
  • -3: 5 bits
  • -2: 3 bits
  • -1: 3 bits
  • 0: 1 bit
  • +1: 3 bits
  • +2: 4 bits
  • +3: 7 bits
  • +4..+7: 9 bits
atrac3p/envelope_y_trees.txt · Last modified: 2010/10/21 22:02 by megadiscman

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