sphinxcontrib-youtube

See https://github.com/TYPO3-Documentation/sphinx-contrib-youtube/blob/develop/README.rst

Youtube

Code:

.. only:: html or singlehtml

   .. youtube:: UdIYDZgBrQU

Result:

sphinxcontrib.youtube README

This module defines a directive, youtube. It takes a single, required argument, a YouTube video ID:

.. youtube:: oHg5SJYRHA0

The referenced video will be embedded into HTML output. By default, the embedded video will be sized for 720p content. To control this, the parameters "aspect", "width", and "height" may optionally be provided:

.. youtube:: oHg5SJYRHA0
   :width: 640
   :height: 480
.. youtube:: oHg5SJYRHA0
   :aspect: 4:3
.. youtube:: oHg5SJYRHA0
   :width: 100%
.. youtube:: oHg5SJYRHA0
   :height: 200px