3eyedtiger/video2vrcemote

This is a small desktop app that turns a clip of video into an animated emoji image for VRChat, a social virtual reality platform. VRChat lets users chat using little animated emoji that play like a short looping video, and those emoji have to be built as a single grid image containing every frame of the animation, which is fiddly to make by hand. The app lets someone load a video file, then drag start and end sliders to trim it down to the part they want, with a live preview thumbnail showing the exact frame at each end. They then pick a grid size of 2 by 2, 4 by 4, or 8 by 8, matching the layouts VRChat actually supports, and the app evenly samples that many frames from the trimmed clip, crops each one to a square, and resizes it to the right size. There is an optional chroma key feature, meaning a chosen background color, green by default, can be made transparent, with a live preview against a black, white, or checkerboard background before saving. The finished image is exported as a single PNG file with a filename that encodes the frame count and playback speed, which VRChat reads to know how to play the animation back correctly. On Windows, a bundled start.bat file sets up everything automatically the first time it is run, including installing the needed Python packages, so no manual setup is required beyond having Python installed. On other systems, or for manual use, it can be installed with pip and started as a normal Python script. The project is released under the MIT license, and the README notes that it was built in an afternoon using AI assistance.