1676 Free Lossless Image Format (FLIF) Image (Raster) FLIF is a lossless image format, developed by Jon Sneyers. FLIF is based on MANIAC compression. MANIAC (Meta-Adaptive Near-zero Integer Arithmetic Coding) is a variant of CABAC (context-adaptive binary arithmetic coding), where the contexts are nodes of decision trees which are dynamically learned at encode time. 1 Digital Preservation Department / The National Archives 20 Jan 2016 20 Jan 2016 fmt/872 PUID image/flif MIME flif File extension 1231 FLIF BOF: 4 byte Magic string: 'FLIF', 1 byte Type string: 1 = static, grayscale, non-interlaced; 3 = static, RGB, non-interlaced; 4 = static, RGBA, non-interlaced; A = static, grayscale; C = static, RGB, interlaced; D = static, RGBA, interlaced; Q = animated, grayscale, non-interlaced; S = animated, RGB, non-interlaced; T = animated, RGBA, non-interlaced; a = animated, grayscale; c = animated, RGB, interlaced; d = animated, RGBA, interlaced. 1 Absolute from BOF 0 0 464C4946(31|33|34|41|43|44|51|53|54|61|63|64)