Note: I am not going to make any changes to this unless I suddenly gain interest in this game again. Anyone is free to fork this and do whatever they want under the terms of the MIT license.

osr viewer

This is a few things I was messing around with the osu! replay format and pygame. There's also a sort of library in osr.py for reading the maps.

I am using Poetry for dependencies, so you can just do poetry install after cloning the repo to start running things.

multi_render.py

This will read a bunch of replays at the same time and show them at the same time.

To run it, you need a folder with an mp3 in it and some replays. Then run it like python multi_render.py ooi where ooi is the folder containing the mp3 and replays. Note that the mp3 must be 44.1 kHz otherwise the song will play really slowly. I don't know why this happens, and I don't know why some of the mp3s that osu! downloads are 48 kHz but it's not that hard to resample them. I used Audacity for this.

hotkeys

• left click: increase circle radius
• right click: decrease circle radius
• scroll up: increase trail duration
• scroll down: decrease trail duration
• escape, ctrl+c: quit

multi_image.py

This script will write images to a file for each 60 fps frame of all of the maps. You can then mux/encode these together with ffmpeg to make a video you can actually upload to YouTube or whatever. This is what I used to upload a bunch of the videos on my YouTube channel automatically.