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https://ja.hideki.hclippr.com/2008/03/15/vlc-player%e4%b8%80%e6%9c%ac%e3%81%a7%e3%83%93%e3%83%87%e3%82%aa%e3%82%92h-264%e3%81%ab%e5%a4%89%e6%8f%9b%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95/
VLC Player一本でビデオをH.264に変換する方法