Open Source JavaScript Multimedia Software

NASPRO, acronym for "NASPRO Architecture for Sound PROcessing" is a collection of free and open source sound processing software built around the LV2 plugin standard.

Delaunator is a fast library for Delaunay triangulation. It takes as input a set of points. The triangulation is represented as compact arrays of integers. It’s less convenient than other representations but is the reason the library is fast. After constructing a delaunay = Delaunator.from(points) object, it will have a triangles array and a halfedges array, both indexed by half-edge id. What’s a half-edge? A triangle edge may be shared with another triangle. Instead of thinking about each edge A↔︎B, we will use two half-edges A→B and B→A. Having two half-edges is the key to everything this library provides. It will also be useful to have some helper functions to go from one half-edge to the next and previous half-edges in the same triangle. We can draw all the triangle edges without constructing the triangles themselves.

gifify is a command-line utility and Node.js-based tool designed to convert video files into optimized animated GIFs with high efficiency and flexibility. It leverages powerful multimedia tools such as FFmpeg, ImageMagick, and giflossy to produce lightweight GIF outputs while maintaining visual quality. The tool allows users to process full videos or extract specific segments, making it useful for creating short clips, demos, or previews. Its Unix-friendly design supports piping through standard input and output, enabling seamless integration into automation scripts and workflows. gifify performs all processing in memory, avoiding temporary files and improving speed, even when handling large source videos. It also provides a wide range of configuration options such as frame rate, compression, color limits, and resizing to fine-tune output results. Despite being simple to use, it offers advanced customization for developers and power users working with video-to-GIF conversion tasks.