Uploaded December 2021 | Updated September 2026, 2 weeks ago
The "Quite OK Image Format" (qoi) is a lossless compression image format that has similar performance to PNG, but with substantially faster encoding and decoding, making it a great choice for embedded systems.
In this video we're going to be writing an encoder in TypeScript, which allows us to take raw RGBA pixels and compress them using the algorithms specified by QOI.
In the next video, we'll write the corresponding decoder - and together these two components will allow us to take most common image formats and transform them to QOI, as well as being able to display QOI images in the browser.
=[ 🔗 Links 🔗 ]=
- The QOI format: qoiformat.org
- Dominic Szablewski (the creator): twitter.com/phoboslab
💌 Updates to your inbox: tinyletter.com/lowleveljavascript
🗣 Discord: discord.gg/FPWaVgk
⭐️ Patreon: patreon.com/lowleveljavascript
💻 Github Repo: github.com/LowLevelJavaScript/QOI
The "Quite OK Image Format" (qoi) is a lossless compression image format that has similar performance to PNG, but with substantially faster encoding and decoding, making it a great choice for embedded systems.
In this video we're going to be writing an encoder in TypeScript, which allows us to take raw RGBA pixels and compress them using the algorithms specified by QOI.
In the next video, we'll write the corresponding decoder - and together these two components will allow us to take most common image formats and transform them to QOI, as well as being able to display QOI images in the browser.
=[ 🔗 Links 🔗 ]=
- The QOI format: qoiformat.org
- Dominic Szablewski (the creator): twitter.com/phoboslab
💌 Updates to your inbox: tinyletter.com/lowleveljavascript
🗣 Discord: discord.gg/FPWaVgk
⭐️ Patreon: patreon.com/lowleveljavascript
💻 Github Repo: github.com/LowLevelJavaScript/QOI
![Building A Language Parser and Interpreter [Parser Combinators from Scratch] Episode 5](https://i.ytimg.com/vi/PzodUuERBZc/mqdefault.jpg "Building A Language Parser and Interpreter [Parser Combinators from Scratch] Episode 5
In this episode we dive into parsing recursive structures, and build a very simple functional language parser and interpreter.
=[ ℹ About ℹ ]=
During this series we will develop an understanding of the concept of parsing, and build our own parser combinator system from scratch. The system we build will be capable of parsing both binary and text data. Well make use of both object-oriented and function programming principles to develop an effective and intuitive library.
=[ 🔗 Links 🔗 ]=
- ⭐️ Patreon: https://www.patreon.com/lowleveljavascript
- 💌 Updates to your inbox: https://tinyletter.com/lowleveljavascript
- Playlist: https://www.youtube.com/watch?v=6oQLRhw5Ah0&list=PLP29wDx6QmW5yfO1LAgO8kU3aQEj8SIrU
- Code: https://github.com/LowLevelJavaScript/Parser-Combinators-From-Scratch
- LLJS Subreddit: https://reddit.com/r/lowleveljavascript")
