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package.lisp (133, 2022-03-30)
qoi.asd (307, 2022-03-30)
qoi.lisp (9848, 2022-03-30)

# QOI QOI is a Common Lisp library for reading and writing [QOI](https://qoiformat.org/) (Quite OK Image Format) files. ## decoding/reading `decode` takes an input stream of octets and decodes it to an `image`. `image` is an 1D array of size `width * height * channels` (channels = 3 for RGB file and = 4 for RGBA file). To decode a `qoi` file simply: ```lisp (with-open-file (stream #p"./dice.qoi" :element-type '(unsigned-byte 8)) (decode stream)) ``` `decode` returns multiple values: `(values image width height channels colorspace)`. ## encoding/writing `encode` takes an binary output stream and an image array then encodes the image and writes it to that stream. To encode and save an `image` to `output-file` smiply: ```lisp (with-open-file (stream output-file :direction :output :if-exists :supersede :element-type '(unsigned-byte 8)) (encode stream image width height channels colorspace)) ``` ## License MIT

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