FFmpeg windows 录屏(录像)录音

1. 安装virtual-audio-capturer 下载地址 https://github.com/jiao808813/virtual-audio-capture-grabber-device 可以下载源码自己编译，也可下载安装包直接安装

2. 录屏和录音并推流命令行如下

3. ffmpeg -f gdigrab -i desktop -f dshow -i audio="virtual-audio-capturer" -acodec libmp3lame -vcodec libx264 -r 30 -s 1920x1080 -q 10 -preset:v ultrafast -tune:v zerolatency MyDesktop.mp4

https://blog.csdn.net/zimengyu2020/article/details/106035258

https://blog.csdn.net/shaosunrise/article/details/81068080

https://zhuanlan.zhihu.com/p/38229790

https://www.cnblogs.com/my_life/articles/6529277.html