如何通过 Media9 和 TexShop 将 MP4 包含在 pdf 中？

Question

以下是我的 MWE：基于http://texdoc.net/texmf-dist/doc/latex/media9/media9.pdf

[仅出现一个不可点击的按钮，控制台中 media9 没有错误，其他类似的查询都来自古代，谢谢！]

%!TEX TS-program = xelatex
%!TEX encoding = UTF-8 Unicode
\documentclass[11pt]{book}
\usepackage{media9}

\begin{document}


\includemedia[
  label=some_dice,
  width=0.6\linewidth,height=0.45\linewidth,
  addresource=VID00727.MP4,
  transparent,
  activate=pageopen,
  passcontext,
  flashvars={
    source=VID00727.MP4
   &loop=true
  }
]{}{VPlayer.swf}
% loop video
\mediabutton[
  mediacommand=some_dice:playPause,
  overface=\color{blue}{\fbox{\strut Play/Pause}},
  downface=\color{red}{\fbox{\strut Play/Pause}}
]{\fbox{\strut Play/Pause}}
\mediabutton[
  mediacommand=some_dice:setSource [(VID00727.MP4)]
]{\fbox{\strut VID00727.MP4}}


\end{document}