4、FFmpeg命令行操作7

视频录制(Windows)

先安装dshow软件 Screen Capturer Recorder，     

项目地址：on screen capture recorder to video free - Browse Files at SourceForge.neton screen capture recorder to video windows freeopen source directshow "screen capture" device allows capture/stream desktop (VLC, etc.) with…https://sourceforge.net/projects/screencapturer/files/     

然后查看可用设备名字：

ffmpeg -list_devices true -f dshow -i dummy