Difference between revisions of "Flipnote Files"

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== *.ppm FILES ==
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Flipnote Studio uses 3 different file extensions:
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{| class="wikitable"
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*[[/PPM|.PPM]] - these are the animation files themselves
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|- style="background-color: #ddd;"
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*[[/LST|.LST]] - This is a list of the files in the current directory
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! Start
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*[[/PLS|.PLS]] - These are the sticker files, and the recently edited file.
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! Length
 
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! Description
 
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|-
 
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| 0x0000
 
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| 4
 
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| Magic (should be PARA)
 
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|-
 
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| 0x0004
 
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| 4
 
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| Size of animation-section
 
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|-
 
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| 0x0008
 
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| 4
 
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| Offset audio-data
 
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|-
 
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| 0x000C
 
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| 2
 
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| # of frames
 
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|-
 
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| 0x000E
 
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| 2
 
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| Unknown - all files looked at so far has this field set to 24 00 hex.
 
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|-
 
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| 0x0010
 
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| 2
 
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| Is locked? - 0 open, 1 locked
 
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|-
 
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| 0x0012
 
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| 2
 
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| Preview frame number ??
 
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|-
 
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| 0x0014
 
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| 22
 
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| Original author name (UCS-2)
 
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|-
 
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| 0x002A
 
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| 22
 
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| Author name (UCS-2)
 
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|-
 
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| 0x0040
 
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| 22
 
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| User name (UCS-2)
 
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|-
 
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| 0x0056
 
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| 8
 
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| Original author ID
 
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|-
 
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| 0x005E
 
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| 8
 
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| Edit Author ID - the last user to save the file
 
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|-
 
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| 0x0066
 
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| 18
 
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| Original File-name - see notes on format
 
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|-
 
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| 0x0078
 
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| 18
 
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| File-name - see notes on format
 
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|-
 
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| 0x008A
 
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| 8
 
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| Mirrored author ID ??
 
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|-
 
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| 0x0092
 
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| 8
 
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| Partial File name? - see notes on format
 
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|-
 
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| 0x009A
 
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| 6
 
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| Unknown - possibly date information
 
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|-
 
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| 0x00A0
 
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| 1536
 
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| Preview Bitmap (4 bits/pixel).
 
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|}
 
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The file name seems to be stored in the file header 3 times:
 
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*Original file name 0x0066
 
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*Current file name 0x0078
 
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*Partial file name 0x0092
 
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The file name is stored in 3 parts:
 
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*3 hex bytes, the first byte's high nibble is not the same as the first byte of the file name
 
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*13 bytes for the central part of the file name
 
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*2 bytes for the last part of the file name.
 
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For the file name : G35B20_0909841CDBEB1_002
 
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*First location: D3 5B 20 30 39 30 39 38 34 31 43 44 42 45 42 31 00 00
 
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*Second location: D3 5B 20 30 39 30 39 38 34 31 43 44 42 45 42 31 02 00
 
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*Last location: D3 5B 20 09 09 84 1C DB
 
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=== Palette: ===
 
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{| class="wikitable"
 
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|- style="background-color: #ddd;"
 
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! Hex
 
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! Color
 
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|-
 
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| 0x0
 
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| ??
 
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|-
 
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| 0x1
 
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| Dark grey
 
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|-
 
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| 0x2
 
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| White
 
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|-
 
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| 0x3
 
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| Light grey
 
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|-
 
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| 0x4
 
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| Light red
 
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|-
 
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| 0x5
 
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| Dark red
 
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|-
 
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| 0x6
 
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| Pink
 
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|-
 
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| 0x7
 
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| Pure green
 
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|-
 
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| 0x8
 
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| Pure blue
 
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|-
 
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| 0x9
 
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| Purple
 
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|-
 
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| 0xA
 
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| Light blue
 
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|-
 
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| 0xB
 
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| Pure green
 
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|-
 
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| 0xC
 
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| Magenta
 
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|-
 
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| 0xD
 
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| Pure green
 
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|-
 
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| 0xE
 
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| Pure green
 
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|-
 
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| 0xF
 
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| Pure green
 
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|}
 
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The preview image is a 64x48 image stored in a 16 colour tile way, with each 8x8 tile taking up 32 bytes of the file.
 
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Here's two preview images I (blasty) decoded from some PPM files.
 
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[[Image:ppm_1.png]] [[Image:ppm_2.png]]
 

Latest revision as of 19:00, 22 August 2009

Flipnote Studio uses 3 different file extensions:

  • .PPM - these are the animation files themselves
  • .LST - This is a list of the files in the current directory
  • .PLS - These are the sticker files, and the recently edited file.
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