See also Chris Wellons' Render Multimedia in Pure C and Poor Man's Video Editing:<p><a href="https://nullprogram.com/blog/2017/11/03/" rel="nofollow noreferrer">https://nullprogram.com/blog/2017/11/03/</a>
<a href="https://nullprogram.com/blog/2011/11/28/" rel="nofollow noreferrer">https://nullprogram.com/blog/2011/11/28/</a>