一、nginx的服务器的搭建
安装nginx的依赖库
sudo apt-get update
sudo apt-get install libpcre3 libpcre3-dev
sudo apt-get install openssl libssl-dev
下载nginx
wget http://nginx.org/download/nginx-1.11.3.tar.gz
下载rtmp的module
git clone https://github.com/arut/nginx-rtmp-module.git
然后分别解压缩,进入nginx目录
cd nginx-1.11.3
安装:
./configure--add-module=../nginx-rtmp-module
make
sudo make install
运行nginx
进入安装目录/usr/local/nginx，运行命令./sbin/nginx
打开浏览器在地址栏输入：localhost。如果，如下图显示那样就证明您的nginx服务器搭建成功了。
修改服务器的配置文件nginx.conf
cd /usr/local/nginx
vi conf/nginx.conf
我的内容大致是这样的:
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
rtmp {
server {
listen 8082;
chunk_size 4000;
#HLS
# For HLS to work please create a directory in tmpfs (/tmp/app here)
# for the fragments. The directory contents is served via HTTP (see
# http{} section in config)
#
# Incoming stream must be in H264/AAC. For iPhones use baseline H264
# profile (see ffmpeg example).
# This example creates RTMP stream from movie ready for HLS:
#
# ffmpeg -loglevel verbose -re -i movie.avi -vcodec libx264
# -vprofile baseline -acodec libmp3lame -ar 44100 -ac 1
# -f flv rtmp://localhost:1935/hls/movie
#
# If you need to transcode live stream use 'exec' feature.
#
application vod {
play /opt/video/vod ; #//file path
}
application live {
live on;
hls on;
wait_key on;
hls_path /opt/video/hls;
hls_fragment 10s;
hls_playlist_length 60s;
hls_continuous on;
hls_cleanup on;
hls_nested on;
}
}
}
http {
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
72,0-1 21%
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
server {
listen 8081;
location /stat {
# Serve HLS fragments
rtmp_stat all;
rtmp_stat_stylesheet stat.xsl ;
}
location /stat.xsl {
root /home/vert/nginx-rtmp-module/;
}
location /live {
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
alias /opt/video/hls;
expires -1;
add_header Cache-Control no-cache;
}
location / {
root html;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
server {
listen 8080;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# another virtual host using mix of IP-, name-, and port-based configuration
#
}
重启nginx
sudo ./sbin/nginx -s reload
查看配置是否生效，浏览器输入 http://localhost:8081/stat
如图代表启动成功
二、使用ffmpeg推流（录屏）
如果没有ffmpeg需要先自行安装ffmpeg
推流命令无音频
ffmpeg -f avfoundation -i "1" -strict -2 -acodec aac -f flv rtmp://your ip:8082/live/test
推流带有音频
不使用h264: ffmpeg -f avfoundation -i "1:0" -strict -2 -acodec aac -ar 44100 -ac 1 -f flv rtmp://ip:8082/live/test
使用h264:
ffmpeg -f avfoundation -i "1:0" -vcodec libx264 -preset veryfast -maxrate 3000k -bufsize 4000k -acodec libmp3lame -ar 44100 -ac 1 -f flv rtmp://ip:8082/live/test
如果移动设备解码的话使用:
ffmpeg -f avfoundation -i "1:0" -framerate 25 -vcodec libx264 -preset veryfast -maxrate 3000k -bufsize 4000k -acodec libmp3lame -ar 44100 -ac 1 -f flv rtmp://ip:8082/live/test
上面是MAC OS，下面是Ubuntu
./ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r 30 -s 1024x768 -i :0.0 -framerate 25 -vcodec libx264 -preset veryfast -maxrate 3000k -bufsize 4000k -acodec libmp3lame -ar 44100 -ac 1 -f flv rtmp://ip:8082/live/test
./ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r 30 -s 1024x768 -i :0.0 -framerate 25 -vcodec libx264 -preset veryfast -maxrate 3000k -bufsize 4000k -strict -2 -acodec aac -f flv rtmp://ip:8082/live/test
查看RTMP流:
这里测试还有VLC客户端进行打开:
拉流地址(VLC客户端打开）
rtmp://your ip:8082/live/test
不出意外就能查看到屏幕视频信息了，测试过程中推流占用带宽过大（由于我用的mace ffmpeag未带h264编码器)，后期需要进行视频压缩和音频压缩，同时我自己的服务器延迟比较大，后续有需要优化。
