drsnuggles / iff

Interchange File Format (IFF) Tools, ILBM, 8SVX, ByteRun1, Fibonacci Exponential delta compression, ADPCM2, ADPCM3

IFF

Interchange File Format (IFF), is a generic container file format originally introduced by the Electronic Arts company in 1985 (in cooperation with Commodore) in order to facilitate transfer of data between software produced by different companies.

Why

I started working on Bloodwych HTML version and maybe i use original data instead of converted data.

I found an ILBM to canvas renderer but nothing similar for 8SVX. There is a 8SVX import in BassoonTracker.

That's why i started this repo. I also included support for official and unofficial 8SVX packers.

Found repos

There is a general node IFF parser done by Raphael Schweiker. https://github.com/sabberworm/node-iff-parser

This also offers ILBM and SMUS renderers.

Chunks

See https://wiki.amigaos.net/wiki/IFF_FORM_and_Chunk_Registry

ILBM

Used for images and animations. Some code is based on Matthias Wiesmann https://github.com/wiesmann/ilbm.js

Packers

- ByteRun1 / PackBits

8SVX

For infos see https://wiki.amigaos.net/wiki/8SVX_IFF_8-Bit_Sampled_Voice

Packers

- official Fibonacci delta compression (FDC)
- Exponential delta compression (EDC)
- ADPCM2
- ADPCM3

Copyright / License

Multiple, see single files for information.