OBS -> MPV trimmer

i've been frustrated with how sloppy and slow clipping software is, so i've created my own version which i like a lot and only takes like 15 seconds to fully clip, trim and send a clip

and i've seen others take soo long to trim and send a clip, and they use some bs like medal or record their video player or pull up entire video editors, just to trim a clip and its still over 10mb, so they upload to streamable or compress with 8mb.video which is so slow and ineffetive

how this script works:

checks standard directories & registry to make sure obs/mpv aren't installed already before trying winget
configures obs automatically for replay buffer, with the settings you setup on the site
creates an obs startup script inside of shell:startup so OBS starts with your system, with replay buffer enabled, hidden in tray by using these startup flags: --startreplaybuffer --minimize-to-tray
installs mpv if its not there
downloads my plugin and puts it into the mpv scripts folder: C:\Users\USER\AppData\Roaming\mpv\scripts
downloads an isolated, modern build of ffmpeg directly into %APPDATA%\mpv so it never conflicts with older or broken system versions

Pipeline setup & modules

uncheck anything you already have configured or want to handle manually

Module / Integration	Include
Install OBS Studio	check registry/paths first, install via winget if missing
Auto-configure OBS Replay Buffer profile	generate profile & hotkeys
Autostart OBS with Windows in background	create shortcut in `shell:startup`
Install MPV Video Player	install via winget if missing
Download & Install MPV Trimmer Lua script	install into `%APPDATA%\mpv\scripts`
Install Isolated FFmpeg Binary	places modern standalone `ffmpeg.exe` in `%APPDATA%\mpv`
Set MPV as default video player	opens Windows Default Apps on finish to select MPV
Add "Open with MPV" to context menu	adds right-click option on video files (if you dont want mpv to be default)

OBS Replay Buffer settings

these options are injected into the obs profile config (disabled if auto-configure is turned off)

Parameter	Value	Unit / Info
Clip Duration		Seconds
Target Bitrate		Mbps
Hardware Encoder
Save Clip Keybind
RAM Usage	~188 MB

Installation guide

run the generated obsmpvtrimmer_setup.ps1 powershell script
press the configured keybind (e.g. F10) at any time to save your clip to ~/Videos/Clips or the folder of your choosing
open the file with mpv (or right click → Open with MPV) to crop, mute, or cut the segment with the keybinds documented below:

MPV plugin keybinds

Shortcut	Action	Description
`c`	Mark start / end	first press sets segment start; second press sets segment end and exports the clip in the same folder
`Ctrl` + `x`	Crop clip	click to select corners to have the video cropped to that specific size
`Esc`	Cancel	cancels trim mark and resets crop
`Ctrl` + `m`	Toggle clip mute	toggles removal of audio streams from final output and frees up more space for video
`Ctrl` + `1`	Lossless trim	instant lossless cut without re-encoding (source bitrate), timings may be inaccurate due to b or p-frames
`Ctrl` + `2`	Target 10 MB	calculates two-pass target bitrate to be right below this threshold
`Ctrl` + `3`	Target 25 MB	target bitrate cap for 25mb file size
`Ctrl` + `4`	Target 50 MB	target bitrate cap for 50mb file size
`Ctrl` + `5`	Target 100 MB	target bitrate cap for 100mb file size

Uninstaller generator

if you want to revert changes or remove dependencies, select what you want to remove and generate the clean-up script

Component to Remove	Select
Remove OBS Autostart shortcut	delete `shell:startup\OBS_Clips.lnk`
Remove right-click context menu modal	remove registry entry
Remove MPV Trimmer Lua script	delete `%APPDATA%\mpv\scripts\clipper.lua`
Remove Isolated FFmpeg Binary	delete `%APPDATA%\mpv\ffmpeg.exe`
Remove OBS Replay Buffer profile (ClipsProfile)	delete generated profile folder
Uninstall MPV (via winget)	removes mpv package & forces plugin removal
Uninstall OBS Studio (via winget)	removes obs package