1.下载源码
git clone -b 4.0release https://gitee.com/ossrs/srs.git
2.编译
cd srs/trunk
./configure
make
3.运行
./objs/srs -c conf/srs.conf
4.推流
ffmpeg -f gdigrab -i desktop -vcodec libx264 -s 640x480 -r 20 -preset:v ultrafast -tune:v zerolatency -f flv rtmp://192.168.1.17/live/live1