您可以尝试以下操作: https://github.com/lightsofapollo/x-recorder

You could try this : https://github.com/lightsofapollo/x-recorder

它的作用非常简单:启动命令的xvfb运行，然后用ffmpeg记录X11输出.

What it does is pretty simple : start an xvfb-run of your command, then record the X11 output with ffmpeg.