subler

Install command: 
brew install --cask subler

Name: Subler

Mux and tag mp4 files

https://subler.org/

Cask JSON API: /api/cask/subler.json

Cask code: subler.rb on GitHub

Current version: 1.8.8

Requirements: macOS >= 10.13

Analytics:

Installs (30 days)
subler 98
Installs (90 days)
subler 247
Installs (365 days)
subler 1,286