Userscript for youtube.com to run in:
- the WebMonkey application
- the Tampermonkey web browser extension
- for Firefox/Fenix
- for
Chrome/Chromium
- error: none (execution fails silently)
- behavior: userscript installs, all resources download and are saved to the DB, but userscript does not execute
- best guess at cause: DB query to retrieve resources fails because size of result is larger than CursorWindow
- related issues: 1, 2, 3, 4
- the Violentmonkey web browser extension
Purpose
Use ffmpeg.wasm to transcode Youtube media streams.
- copy and combine video with audio to mp4
- resample and convert audio to mp3
Important
- does not currently work when the
User-Agent request header self-identifies as a mobile device
- which causes Youtube to redirect from
www.youtube.com to m.youtube.com
- in Fenix:
- open: main menu
- select: "Desktop site"
- in WebMonkey:
- open: main menu > Settings > User Agent
- select either: "Chrome 120, Windows 10", or "Custom User Agent"
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