为了实现视频点播和直播，整了一天，看了N多博客，终于有了不小进展，在这里分享给大家。
什么是视频点播？可能你对这个名词不熟悉，但是爱奇艺，腾讯视频等这些视频播放软件想必你肯定知道。没错，视频点播就是在线观看某个视频。额，视频直播？这个就不解释了吧，比如游戏直播等等。
首先我们看如何实现视频点播，视频点播支持flv文件及H264编码视频，ACC编码音频的mp4文件：
第一步，创建单独的目录（因为软件较多，容易混乱），下载需要的软件:
我们需要下载nginx，pcre，zlib，openssl
mkdir work
cd work
wget http://nginx.org/download/nginx-1.10.3.tar.gz
wget http://zlib.net/zlib-1.2.11.tar.gz
wget https://ftp.pcre.org/pub/pcre/pcre-8.40.tar.gz
wget https://www.openssl.org/source/openssl-1.0.2k.tar.gz
第二步，分别解压这四个文件：
tar -zxvf 文件名
第三步，编译安装nginx：
./configure --prefix=/usr/local/nginx --with-debug --with-pcre=../pcre-8.40 --with-zlib=../zlib-1.2.11 --with-openssl=../openssl-1.0.2k --add-module=../nginx-rtmp-module-master
make
sudo make install
第四步，进入 /usr/local/nginx/conf，配置nginx.conf文件，在文件末尾添加如下内容：
rtmp {
server {
listen 1935;
application vod {
play /var/flvs; #指定存放视频文件的路径
}
application vod_http {
#myserver.com及服务器地址，如果只是本地播放，填写127.0.0.1:端口号 就行，端口好看配置文件中http监听的端口下同
play http://myserver.com/vod;
}
application vod_mirror {
play /var/local_mirror http://myserver.com/vod;
}
}
}
示例完整版：
#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 1935;
application vod {
play /video_test;
}
application vod_http {
play http://192.168.1.102:8080/vod;
}
application vod_mirror {
# try local location first, then access remote location
play /var/local_mirror http://192.168.1.102:8080/vod;
}
}
}
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;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
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 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
#
#server {
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;
# location / {
# root html;
# index index.html index.htm;
# }
#}
# HTTPS server
#
#server {
# listen 443 ssl;
# server_name localhost;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 5m;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
}
至此，服务器搭建完成，可以实现视频点播了。
视频点播测试：
播放位于 /video_test 下的视频文件：
ffplay rtmp://localhost/vod//file.flv
可以使用VLC这个播放器或者ffplay（需要安装待会儿直播需要安装的ffmpeg），VLC自行百度安装即可。
ffmpeg安装：
sudo apt-add-repository ppa:jon-severinsson/ffmpeg
sudo apt-get update
sudo apt-get install ffmpeg