I have an mp4 file I would like to use in my beamer presentation.
My MWE is below.
\documentclass{beamer}
\usepackage{multimedia}
\begin{document}
\begin{frame}{Sound example}
\movie[width=8cm,height=4.5cm]{test}{151351913876539.mp4}
\end{frame}
\end{document}
I am using LyX2.3 in a windows 10 environment. My problem is that while the latex file compiles and delivers a pdf output; when I click on the link, I get the following message.

pdfLaTeX mp4test.texfrom command line in the mp4 folder P.S there are command for some media packages that can embed the media – Apr 18 '19 at 01:26multimediaimplements an old part of the PDF specification that allows playback of AVI and MOV files only. For MP4/h264 encoded videos you need the so-called RichMedia annotation, provided by pkgmedia9: https://tex.stackexchange.com/q/345431 – AlexG Apr 18 '19 at 06:44