atrac3p:envelope_x_trees
Differences
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| atrac3p:envelope_x_trees [2010/07/21 20:04] – Add missing tree megadiscman | atrac3p:envelope_x_trees [2010/10/23 22:03] (current) – correct wrong assignment of delta-x for increasing/decreasing Y trees. megadiscman | ||
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| 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. | 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. | ||
| - | ===== delta x for increasing | + | ===== delta x for decreasing |
| * 0: not possible | * 0: not possible | ||
| * 1: 2 bits | * 1: 2 bits | ||
| Line 11: | Line 11: | ||
| * 16..31: 8 bits | * 16..31: 8 bits | ||
| - | ===== delta x for decreasing | + | ===== delta x for increasing |
| * 0: not possible | * 0: not possible | ||
| * 1: 4 bits | * 1: 4 bits | ||
| Line 31: | Line 31: | ||
| * 9..15: 7 bits | * 9..15: 7 bits | ||
| - | ===== delta x to previous band for increasing | + | ===== delta x to previous band for decreasing |
| * -16..-7: 6 bits | * -16..-7: 6 bits | ||
| * -2..-6: 5 bits | * -2..-6: 5 bits | ||
| Line 40: | Line 40: | ||
| * 8..15: 6 bits | * 8..15: 6 bits | ||
| - | ===== delta x to previous band for decreasing | + | ===== delta x to previous band for increasing |
| * -16..-5: 5 bits | * -16..-5: 5 bits | ||
| * -4..-3: 4 bits | * -4..-3: 4 bits | ||
atrac3p/envelope_x_trees.1279742656.txt.gz · Last modified: 2010/07/21 20:04 by megadiscman