一、nginx的服務器的搭建
安裝nginx的依賴庫
sudo apt-get update?
sudo apt-get? install libpcre3 libpcre3-dev
sudo apt-get? install openssl libssl-dev
下載nginx
wget http://nginx.org/download/nginx-1.11.3.tar.gz
下載rtmp的module
git clone https://github.com/arut/nginx-rtmp-module.git
然后分別解壓縮,進入nginx目錄
cd nginx-1.11.3
安裝:
./configure--add-module=../nginx-rtmp-module
make
sudo make install
運行nginx
進入安裝目錄/usr/local/nginx，運行命令./sbin/nginx
打開瀏覽器在地址欄輸入：localhost。如果，如下圖顯示那樣就證明您的nginx服務器搭建成功了。
修改服務器的配置文件nginx.conf
cd /usr/local/nginx
vi conf/nginx.conf
我的內容大致是這樣的:
#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
#
}
重啟nginx
sudo ./sbin/nginx -s reload
查看配置是否生效，瀏覽器輸入 http://localhost:8081/stat
如圖代表啟動成功
二、使用ffmpeg推流（錄屏）
如果沒有ffmpeg需要先自行安裝ffmpeg
推流命令無音頻
ffmpeg -f avfoundation -i "1"? ? -strict -2? -acodec aac -f flv rtmp://your ip:8082/live/test
推流帶有音頻
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
如果移動設備解碼的話使用:
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:
這里測試還有VLC客戶端進行打開:
拉流地址(VLC客戶端打開）
rtmp://your ip:8082/live/test
不出意外就能查看到屏幕視頻信息了，測試過程中推流占用帶寬過大（由于我用的mace ffmpeag未帶h264編碼器)，后期需要進行視頻壓縮和音頻壓縮，同時我自己的服務器延遲比較大，后續有需要優化。
