gtamaplib
A mapping and 3D triangulation library for GTA-like worlds. Lets you transform video frames and screenshots into calibrated camera objects, and combinations of such cameras into triangulated landmarks. A huge collection of metadata, including on-screen markers and in-game coordinates, is part of the package.
gtamaplib-vc
Additional command line tools and web interfaces for gtamaplib. Comes with an observation editor, an optimizer, 2D and 3D map viewers... and the obligatory "flight simulator mode", featuring minor turbulence, repeated phone calls from Jason's other girlfriend, and the long-awaited "SERA Failed Space Launch" event.
rlxbot
Local tools to automatically populate a discord forum with scenes from a trailer. Includes a video annotation editor with visual timelines and cut detection.
gtadb.org
This website. It's open source. And if you want to reuse our landmark data, photos and map tiles for your own application – they are freely available on github.