Inspirations and attributions

Someone else solved this first. These projects would not exist in their current form without the work below, and in several cases the hard part — finding out what a device or a format actually does — was done by somebody else entirely.

• network-audio-controller (netaudio-core)

  Chris Ritsen

  Unlicense

  Audinate's Dante ARC control protocol is undocumented. crates/discovery/src/dante_control.rs is a reimplementation rather than a port — no code was copied — but every constant, record layout and test in it is cross-checked against that crate's own known-answer unit tests. The wire format was documented and byte-tested there first, and guessing it from nothing would have been a different project.

  Used in Dante BabelBox

• @node-projects/acad-ts

  MIT

  DWG is AutoCAD's native format and has no public specification — everything known about it is reverse-engineered. acad-ts does that parsing, and src/lib/import/dwg.ts is only the translation from its object model into ours. It was chosen over the more obvious libredwg specifically because libredwg is GPL-3 and bundling it into an MIT browser app would relicense the app. acad-ts is itself an independent TypeScript port of ACadSharp.

  Used in ArrayCAD

• Four public-domain works, via Project Gutenberg

  public domain in the United States

  The built-in passages are body-only excerpts of Alice's Adventures in Wonderland (Lewis Carroll, 1865), The Republic Book VII (Plato, tr. Benjamin Jowett, 1871), Discourse on the Method Part IV (Rene Descartes, tr. John Veitch, 1850) and Hamlet Act III Scene I (Shakespeare, c. 1600). The Gutenberg header, footer and licence are deliberately never included, and the extractor asserts that no reference to them survives — so the files carry the public-domain work and nothing of Gutenberg's own added matter.

  Used in Downpour

• blackmagic-misc

  Sylvain "tnt" Munaut

  Apache-2.0 (SPDX header in bmd.py; the repo has no LICENSE file, so GitHub does not detect it)

  The DaVinci Resolve Speed Editor stays silent until a mutual-authentication handshake completes. That handshake was reverse-engineered by Munaut, and both the authentication maths and the HID report layouts in console/src/lib/speedEditor.ts follow that reference. Our side of it is narrower — we only authenticate to the device and never verify it — but the work of finding out what the device wants is not ours.

  Used in OpenStage

• 2D signed distance functions

  Inigo Quilez

  published derivations, used with credit

  The shape primitives are the standard analytic forms derived and published by Quilez. The normalisation constants, the motion, and everything else in the plugin are ours — but the distance functions at the centre of it are his derivations and are used as published.

  Used in Orrery

The SDKs, frameworks and libraries these projects bundle or link. Ordered by how many projects depend on them.

• The npm ecosystem

  predominantly MIT

  the individual package authors

  Build tooling, test runners and the libraries the front ends are assembled from. The exact set and versions for any build are in that repo's lockfile, which is the authoritative list.

  npm dependencies, resolved and pinned in the lockfile.

  36 projects: animATEM, ATEM Fleet Admin, ATEM Overseer, atem-scopes, av-launcher, Companion — animATEM, Companion — Atem Overseer, Companion — caspar-AV, Companion — flock, Companion module: Kestrel, Companion — PDF Presenter, Companion — Presentation Commander Client, Companion — Presentation Commander Server, Companion — RFutils, Companion — SimpleCue, Companion — srt-router, Companion — WebLinked, LEQtion, MicWizard, PDF Presenter, Presentation Commander — Client, Presentation Commander — Server, Presentation Converter, RFutils, simpleVIS, ArrayCAD, Aspect Calc, Blend Calc, latex-wysiwyg, Pixel Peeker, pptx-font-manager, simpleRTA, stagewash, the Stoatworks Labs website, Test Card, thumbnail-generator

• Resolume FFGL SDK

  BSD-3-Clause

  FreeFrame

  The plugin ABI itself. An FFGL effect or source is defined by this SDK's headers — there is no other way to be loadable by Resolume Arena and Avenue.

  Vendored as a git submodule at external/ffgl (third_party/ffgl in oxbow).

  18 projects: Asciify, Coinop, Downpour, Flipbook, Idler, NESolume, Old Cathode, Orrery, Outrun, oxbow, Porthole, Resolume Luma Keyer, Resolume OFX Bridge, Scopes, Tinsel, WebLinked, cartridge, nib

• GLEW — the OpenGL Extension Wrangler Library

  BSD-3-Clause (with Mesa 3-D and Khronos components)

  Milan Ikits, Marcelo E. Magallon and Lev Povalahev

  Resolves OpenGL entry points on Windows, where the system headers stop at OpenGL 1.1.

  Arrives inside the FFGL submodule at external/ffgl/deps/glew-2.1.0. Not fetched separately.

  18 projects: Asciify, Coinop, Downpour, Flipbook, Idler, NESolume, Old Cathode, Orrery, Outrun, oxbow, Porthole, Resolume Luma Keyer, Resolume OFX Bridge, Scopes, Tinsel, WebLinked, cartridge, nib

• libpng

  PNG Reference Library License (libpng)

  the PNG Reference Library authors

  Part of the upstream SDK tree rather than something these plugins call directly — listed because it is present in the checkout.

  Arrives inside the FFGL submodule, under the SDK's CustomThumbnail sample.

  18 projects: Asciify, Coinop, Downpour, Flipbook, Idler, NESolume, Old Cathode, Orrery, Outrun, oxbow, Porthole, Resolume Luma Keyer, Resolume OFX Bridge, Scopes, Tinsel, WebLinked, cartridge, nib

• React

  MIT

  Meta Platforms, Inc. and affiliates

  The UI layer for the browser tools and the Electron and Tauri front ends.

  An npm dependency.

  17 projects: animATEM, ATEM Fleet Admin, atem-scopes, LEQtion, MicWizard, PDF Presenter, Presentation Commander — Client, Presentation Commander — Server, ArrayCAD, Aspect Calc, Blend Calc, Pixel Peeker, pptx-font-manager, simpleRTA, stagewash, Test Card, thumbnail-generator

• The Rust crate ecosystem

  predominantly MIT or Apache-2.0

  the individual crate authors

  Async runtimes, protocol codecs, serialisation and GUI toolkits. The exact set and versions for any build are in that repo's Cargo.lock, which is the authoritative list.

  Cargo dependencies, resolved and pinned in Cargo.lock.

  12 projects: caspar-AV, Dante BabelBox, Flock, Kestrel, openrcs, SRT Router, UnMapper, db-remote, openrcs-research, OpenStage, PineMarten, vertige-bridge

• @companion-module/base

  MIT

  Bitfocus AS

  The module API for Bitfocus Companion. A module is defined by this package's contract — actions, feedbacks, variables and presets are its types.

  An npm dependency.

  12 projects: Companion — animATEM, Companion — Atem Overseer, Companion — caspar-AV, Companion — flock, Companion module: Kestrel, Companion — PDF Presenter, Companion — Presentation Commander Client, Companion — Presentation Commander Server, Companion — RFutils, Companion — SimpleCue, Companion — srt-router, Companion — WebLinked

• OpenFX image effect plug-in API

  BSD-3-Clause

  OpenFX and contributors to the OpenFX project

  The plugin ABI for the DaVinci Resolve and Nuke side of the same effects, so one core renders through both hosts.

  Vendored at external/openfx — a git submodule in resolume-ofx-bridge, a copy of the headers and Support library elsewhere.

  11 projects: Asciify, Downpour, Flipbook, Idler, NESolume, Old Cathode, Orrery, Porthole, Resolume Luma Keyer, Resolume OFX Bridge, Tinsel

• NDI SDK

  NDI SDK Licence Agreement (proprietary)

  Vizrt Group

  NDI is the video transport most of this fleet's users already run. Compiling against the headers without shipping the runtime keeps the licence intact and still gives every build the backend.

  Headers only, vendored so the backend compiles everywhere. The runtime is never redistributed — it is loaded with dlopen at run time if the user has installed it.

  9 projects: Flock, Kestrel, oxbow, Presentation Commander — Server, SRT Router, UnMapper, WebLinked, OpenStage, PineMarten

• Electron

  MIT

  OpenJS Foundation and Electron contributors

  Ships one desktop app across macOS, Windows and Linux where the UI is the product and a bundled Chromium is an acceptable trade for that reach.

  An npm dependency.

  7 projects: animATEM, ATEM Fleet Admin, atem-scopes, MicWizard, PDF Presenter, Presentation Commander — Client, Presentation Commander — Server

• Open Media Transport (libomt)

  MIT

  Open Media Transport Contributors

  The open alternative to NDI, and MIT end to end — so unlike NDI it can be supported without a proprietary licence in the path.

  Header vendored alongside the NDI headers; the library is loaded at run time.

  4 projects: oxbow, SRT Router, WebLinked, PineMarten

• JUCE 8

  AGPLv3 or commercial (JUCE 8 licensing terms)

  Raw Material Software Limited

  The audio plugin and application framework — format wrappers, DSP primitives and the GUI toolkit that make one codebase build as VST3, AU and a standalone app.

  Fetched at configure time by CMake FetchContent, pinned to tag 8.0.6. Not vendored in the repo.

  4 projects: Contourtonist, MixerReturn, SimpleCue, Zero EQ

• Tauri

  MIT or Apache-2.0

  The Tauri Programme within The Commons Conservancy

  Puts a web front end on a native Rust core using the platform's own webview, so the binary stays small and the DSP stays in Rust.

  A Cargo and npm dependency.

  4 projects: av-launcher, LEQtion, simpleVIS, pptx-font-manager

• stb_truetype

  MIT or Public Domain (Unlicense), at your choice

  Sean Barrett

  Rasterises glyphs into the atlas the plugin samples. A whole font stack would be a large dependency for one job this header already does.

  Single header vendored at external/stb/stb_truetype.h.

  2 projects: Downpour, Flipbook

• libretro API header

  MIT

  The RetroArch team

  Defines the core ABI, which is what lets an emulator core be loaded and driven as a video source.

  Single header vendored at external/libretro.h.

  1 project: cartridge

• Chromium Embedded Framework

  BSD-3-Clause

  Marshall A. Greenblatt, with portions copyright Google Inc.

  The browser engine. WebLinked's entire premise is rendering a real web page to a video output, which means embedding a real browser.

  Binary distribution vendored under third_party/cef/.

  1 project: WebLinked

• Spout

  BSD-2-Clause

  Lynn Jarvis

  Shares a GPU texture with other Windows applications without a round trip through system memory.

  Vendored under third_party/spout/.

  1 project: WebLinked

• Syphon Framework

  BSD-3-Clause

  Tom Butterworth (bangnoise) and Anton Marini (vade)

  The macOS counterpart to Spout — same job, same reason.

  Vendored under third_party/syphon/.

  1 project: WebLinked

• miniaudio

  Public Domain (Unlicense) or MIT-0, at your choice

  David Reid

  In the tree rather than fetched because it is the only thing between the app and a sound card, and a build should not need the network on a locked-down show LAN.

  Single header vendored at third_party/miniaudio/miniaudio.h, unmodified.

  1 project: WebLinked

• Astro

  MIT

  The Astro Technology Company

  Builds this site to static HTML, so the pages carry no framework runtime to the reader.

  An npm dependency.

  1 project: the Stoatworks Labs website

The full transitive dependency set for any build is pinned in that repo's lockfile, which is the authoritative list. What is named here is the layers a reader would actually want to know about, not every package that has ever been resolved.

No code was taken from any of these. They are how we knew we had it right, which is worth saying out loud.

• NanoOcp

  Christian Ahrens

  GPL-3.0

  AES70/OCA wire offsets and d&b object numbers were cross-checked against NanoOcp, alongside the public Crestron and Q-SYS integration modules. No code was taken and none could be — NanoOcp is GPL-3.0 and this is MIT. Facts about a wire protocol are not copyrightable, the implementation here is independent, and it stays MIT. Listed because checking your work against someone else's is worth saying out loud.

  db-remote

• Analog Way LiveCore documentation and a vendor simulator

  The control protocol was recovered by reading Analog Way's own published documentation and validating against their simulator. No vendor code was used.

  openrcs

• Shure Wireless Workbench and Sennheiser WSM file formats

  Both formats were worked out from files the tools themselves export. No vendor code was used, and neither vendor was involved.

  WSM–WWB Bridge

What these set out to be. No code, assets or binaries from any of them were used or examined — the debt is to the idea, and it is a real debt.

• The arcade cabinet

  Five games in the spirit of the early-eighties arcade floor. None is a clone of a specific title and no original code, ROM or artwork was used — the games are written from scratch and the names are our own. What is borrowed is the form: one screen, one rule, no explanation.

  Coinop

• The Windows 95 and 98 screensavers

  Microsoft

  Eleven savers rebuilt as a Resolume generator — the flat ones that shipped with Windows and the OpenGL ones that arrived with Plus! and became stock in 98. No Microsoft code, assets or binaries were used or examined; every saver is a fresh implementation written to match remembered behaviour. The debt is to the originals and to whoever at Microsoft decided a locked screen should be worth watching.

  Idler

• Retro console video hardware

  The raster, the palette, the attribute cells and the ways they failed, recreated from published descriptions of how the hardware behaved. No ROM, no BIOS and no emulator code is present — the plugin generates the artefacts rather than running the machine that caused them.

  NESolume

• Analogue television

  The composite signal path — subcarrier, comb filtering, the PAL delay line, shadow mask and halation — built from the published broadcast standards rather than from any existing implementation. The artefacts are consequences of modelling the signal path, not effects drawn to look like them.

  Old Cathode

• Synthwave and the eighties arcade horizon

  The perspective grid, the striped sun and the neon tube are a visual language many people built, from Atari's vector cabinets to decades of synthwave cover art. No specific work is copied; the palettes and the path maths are ours.

  Outrun

Not attribution so much as provenance: what these implementations are measured against, and why a reading from one of them should agree with your other kit.

• LEQtion
  • IEC 61672 sound level meter specification — Weightings, time constants and the LEQ integration the meter implements.
• atem-scopes
  • ITU-R BT.601, BT.709 and BT.2020 — Colourimetry and studio-range anchors for the scopes.
• Contourtonist
  • ISO 226 equal-loudness contours — The contours the plugin tracks.
  • IEC 61672 frequency weightings — A- and C-weighting, implemented with matched-Z rather than bilinear so the high-frequency response stays inside tolerance.
• simpleVIS
  • GDTF and MVR — The fixture and rig interchange formats read by the visualiser.
  • Art-Net and sACN (ANSI E1.31) — The control protocols it listens on.
• Test Card
  • SMPTE RP 219 — Colour bar layout and colours.
  • ITU-R BT.709 — Luma coefficients and the Y'CbCr to RGB conversion the patterns are defined in.

Every project with something to declare, and what it declares. Each public repo carries the same list as its own ATTRIBUTIONS.md.