Nokia Startup Logo
From Just Solve the File Format Problem
Nokia Startup Logo (NSL) is a bi-level raster image format used by some Nokia phones.
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Format
NSL appears to use a variant of IFF, with segment lengths stored in 2 bytes instead of 4.
The image dimensions are not stored in the file, but it may be possible to deduce them from the size of the bitmap (the "NSLD" chunk). Model 6110 uses a 504-byte bitmap having dimensions of 84×48 pixels. The gnokii software suggests that model 6210 uses a 768-byte bitmap of 96×60 pixels, and models 6510 and 7110 use an 864-byte bitmap of 96×65 pixels.
Identification
Files begin with the ASCII string "FORM". They also contain "NSLD", and probably "VERS" and "MODL".
Software
- Gammu has code to read 84×48 NSL images (libgammu/service/gsmlogo.c), though it's not clear how to make use of it.
- gnokii appears to have code to read NSL images (common/gsm-filetypes.c).
- Konvertor
Sample files
- Free Operator Logos → 223startuplogos.zip includes a few NSL files
