Linux操作系统笔记05

使用CentOs7.0搭建伪直播应用：（一个推流静态视频，一个推流自己画面）

1：首先介绍一下推流视频原理：

1、下载SRS 源码包

https://github.com/ossrs/srs/archive/v3.0-r0.tar.gz 

2、上传到CentOS7的服务器，进行解压

tar -zxvf srs-3.0-r0.tar.gz
cd srs-3.0-r0/trunk/
./configure
make
make install

3、设置服务开机自启动并启动（netstat -anp | grep srs查看）

ln -sf /usr/local/srs/etc/init.d/srs /etc/init.d/srs
cp -f /usr/local/srs/usr/lib/systemd/system/srs.service /usr/lib/systemd/system/srs.service
systemctl daemon-reload
systemctl enable srs
systemctl start srs

4、用rpmfusion源安装ffmpeg

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo

sed -i -e '/mirrors.cloud.aliyunccnblogs.com/d' -e '/mirrors.aliyunccnblogs.com/d' /etc/yum.repos.d/CentOS-Base.repo

wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

yum install epel-release

wget https://mirrors.aliyun.com/rpmfusion/free/el/rpmfusion-free-release-7.noarch.rpm

rpm -ivh rpmfusion-free-release-7.noarch.rpm

yum install ffmpeg

5、使用FFMPEG命令推流

ffmpeg -re -i /data/Dark.flv -vcodec copy -acodec copy -f flv -y rtmp://192.168.47.129:80/live/livestream

这里要注意自己创建data文件夹并在里面存放自己视频的名字以及后面要改成自己的端口

6、使用VLC观看RTMP流（改成自己的ip）

RTMP流地址为 rtmp://192.168.31.80/live/livestream

：我是分割线

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以上的方法是用ffmpeg推流一个服务器的视频，接下来讲一下怎样直播：使用OBS实现直播效果：

首先很多步骤和上面都一样，直到

这个地方下面不要去使用ffmpeg -re -i /data/Dark.flv -vcodec copy -acodec copy -f flv -y rtmp://192.168.47.129:80/live/livestream这个命令，我们现在下载好obs

只有点击「开始推流」按钮以后，SRS 服务器端才能收到数据，而且右下角的面板会出现一个绿色的小方块，「开始推流」这几个字也会变成「停止推流」

VLC前面我们已经安装好啦，步骤都一样！

哈哈成功啦！！！！

通过这四天的学习，自己从创建自己的第一个Linux虚拟机，小心翼翼的一个一个敲语句，到现在成功搭建好了伪直播，而且可以很熟练的操作一些命令，对于Linux很多文件都有了自己的理解，真正意义成为了Linux小白~，当你独立一个人完成所有任务的那一刻，真的很舒服，就比如我现在的心情，这短短四天，我收获颇多！即使每天上学校的课还复习月考而写考了c1并且举办1024活动的情况下，仍然学下了很多东西，其实最大的原因是不到万不得已不要问别人，自己研究自己查，那样解决了错误是记忆最深刻的！我做到了这一点，希望自己可以再接再厉，坚持下去！加油吧！