最近项目组接了一个视频流项目,项目的主要核心是将网络摄像头RTSP视频流在WEB端实时播放,经过两天的调查和爬坑,终于实现了视频流的播放。
接下来为大家讲讲 linux 系统下搭建 nginx-http-flv-module 的全部过程。
下载VLC(用于测试视频流是否可以播放):https://www.videolan.org/
下载nginx包:https://nginx.org/download/nginx-1.16.1.tar.gz
下载nginx-http-flv-module 模块包:https://github.com/winshining/nginx-http-flv-module
下载FFmpeg:http://www.ffmpeg.org/releases/ffmpeg-4.2.2.tar.bz2
下载yasm(安装FFmpeg可能会报错,所以需要安装yasm):http://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz
下载x264(视频转码需要用到):https://git.videolan.org/git/x264.git
下载nasm(x264编译时需要安装nasm):https://www.nasm.us/pub/nasm/releasebuilds/2.14.02/nasm-2.14.02.tar.bz2
下载完以后将所有的文件上传到 /usr/local 文件夹下面
附:百度网盘链接 所需的 安装包
https://pan.baidu.com/s/1dHS9B8pdpNclCVi9tKlIkQ 密码 asba
安装nginx
在 /user/local 下创建 nginx 文件夹
mkdir /usr/local/nginx
安装依赖项
yum -y install unzip
yum -y install gcc-c++
yum -y install pcre pcre-devel
yum -y install zlib zlib-devel
yum -y install openssl openssl-devel
将 /user/local 下面的 nginx-http-flv-module-master.zip 解压到 /usr/local/nginx 下面
cd /usr/local
unzip nginx-http-flv-module-master.zip //解压文件
cp -r /usr/local/nginx-http-flv-module-master /usr/local/nginx/nginx-http-flv-module //解压文件复制到/usr/local/nginx 目
将 nginx-http-flv-module 模板添加到 nginx 中,生成 make 文件并安装 nginx
cd /usr/local
tar -zxvf nginx-1.16.1.tar.gz
cd nginx-1.16.1/
./configure --prefix=/usr/local/nginx --add-module=/usr/local/nginx/nginx-http-flv-module
make
make install
ln -s /usr/local/nginx/sbin/nginx /usr/local/bin/ //配置nginx为全局变量
nginx -v //查看nginx是否安装成功
cd /usr/local/nginx/conf
vi nginx.conf
worker_processes 1; #Nginx开启1个子进程,子进程个数最好跟CPU的核心数一样
#worker_processes auto; #from versions 1.3.8 and 1.2.5
#worker_cpu_affinity 0001 0010 0100 1000; #CPU的mask,子进程使用它来绑定CPU核心,避免进程切换造成性能损失
#worker_cpu_affinity auto; #from version 1.9.10
error_log logs/error.log error; #错误日志位置和日志级别,如果使用默认编译选项,位置为/usr/local/nginx/logs/error.log,error表示只打印错误日志
events {
worker_connections 4096; #Nginx处理的最大连接数
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
server {
listen 80; #Nginx监听的HTTP请求端口
server_name localhost;
location / {
root html; #HTTP请求URL映射到服务器的位置
index index.html index.htm; #HTTP请求优先请求的文件
}
location /live {
flv_live on; #当HTTP请求以/live结尾,匹配这儿,这个选项表示开启了flv直播播放功能
chunked_transfer_encoding on; #HTTP协议开启Transfer-Encoding: chunked;方式回复
add_header 'Access-Control-Allow-Origin' '*'; #添加额外的HTTP头
add_header 'Access-Control-Allow-Credentials' 'true'; #添加额外的HTTP头
}
location /stat {
rtmp_stat all;
rtmp_stat_stylesheet stat.xsl;
}
location /stat.xsl {
root /usr/local/nginx/module/nginx-http-flv-module;
}
location /control {
rtmp_control all;
}
error_page 500 502 503 504 /50x.html; #如果遇到这些HTTP请求错误,Nginx返回50x.html的内容
location = /50x.html {
root html;
}
}
}
rtmp_auto_push on; #因为Nginx可能开启多个子进程,这个选项表示推流时,媒体流会发布到多个子进程
rtmp_auto_push_reconnect 1s;
rtmp_socket_dir /tmp; #多个子进程情况下,推流时,最开始只有一个子进程在竞争中接收到数据,然后它再relay给其他子进程,他们之间通过unix domain socket传输数据,这个选项表示unix
rtmp {
out_queue 4096;
out_cork 8;
max_streams 128; #Nginx能接受的最大的推流数
timeout 15s;
drop_idle_publisher 15s;
log_interval 5s;
log_size 1m;
server {
listen 1935; #Nginx监听的RTMP推流/拉流端口,可以省略,默认监听1935
server_name 127.0.0.1;
application myapp {
live on; #当推流时,RTMP路径中的APP(RTMP中一个概念)匹配myapp时,开启直播
record off; #不记录视频
gop_cache on; #开启GOP(Group of Picture)缓存,播放器解码时,收到一个完整的GOP才会开始播放,这个是减少播放延迟的选项
}
}
}
测试nginx是否好用
nginx -t //检查nginx
nginx //启动
ps -ef | grep nginx //查看nginx进程
浏览器输入地址是否可以访问成功
安装前期准备下载的nasm
cd /usr/local
tar -jxvf nasm-2.14.02.tar.bz2 //如果解压不了的话安装一下bzip2( yum install -y bzip2 )
cd nasm-2.14.02/
./configure
make
make install
安装前期准备下载的yasm
cd /usr/local
tar -zxvf yasm-1.3.0.tar.gz
cd yasm-1.3.0/
./configure
make && make install
安装x264(RTSP视频流转码时需要x264)
cd /usr/local/x264
./configure --enable-static --enable-shared
make && make install
安装FFmpeg
cd /usr/local
tar -jxvf ffmpeg-4.2.2.tar.bz2
cd ffmpeg-4.2.2/
./configure --prefix=/usr/local/ffmpeg --enable-gpl --enable-libx264
make && make install (FFmpeg编译时间比较长)
ln -s /usr/local/ffmpeg/bin/ffmpeg /usr/local/bin //配置ffmpeg全局环境变量
ffmpeg -version //查看ffmpeg是否安装成功
直接运行FFmpeg可能报如下错误(重点)
ffmpeg: error while loading shared libraries: libx264.so.157: cannot open shared object file: No such file or directory
解决:
vi /etc/ld.so.conf
添加libx264.so文件位置
我的是在:/usr/local/lib/ 加入到 ld.so.conf
重载配置:ldconfig
ffmpeg -re -rtsp_transport tcp -i "rtsp://admin:Biao456813@192.168.153.194:554/h264/ch1/main/av_stream" -f flv -vcodec libx264 -vprofile baseline -acodec aac -tune zerolatency -preset ultrafast -ar 44100 -strict -2 -ac 1 -f flv -s 1980x1080-q 10 "rtmp://192.168.153.204:1935/myapp/home"
Html代码:
<!DOCTYPE html>
<html>
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<title>flv.js demo</title>
<style>
.mainContainer {
display: block;
width: 1024px;
margin-left: auto;
margin-right: auto;
}
.urlInput {
display: block;
width: 100%;
margin-left: auto;
margin-right: auto;
margin-top: 8px;
margin-bottom: 8px;
}
.centeredVideo {
display: block;
width: 100%;
height: 576px;
margin-left: auto;
margin-right: auto;
margin-bottom: auto;
}
.controls {
display: block;
width: 100%;
text-align: center;
margin-left: auto;
margin-right: auto;
}
</style>
</head>
<body>
<p class="mainContainer">
<video name="videoElement" id="videoElement" class="centeredVideo" controls muted autoplay width="1024" height="576">
Your browser is too old which doesn't support HTML5 video.
</video>
</p>
<script src="flv.js"></script>
<script>
function start() {
if (flvjs.isSupported()) {
var videoElement = document.getElementById('videoElement');
var flvPlayer = flvjs.createPlayer({
type: 'flv',
url: 'http://192.168.153.204/live?port=1935&app=myapp&stream=home'
});
flvPlayer.attachMediaElement(videoElement);
flvPlayer.load();
flvPlayer.play();
}
}
document.addEventListener('DOMContentLoaded', function () {
start();
});
</script>
</body>
</html>
worker_processes 1;
error_log logs/error.log debug;
events {
worker_connections 1024;
}
rtmp {
server {
listen 1935;
server_name 192.168.223.131;
application live {
live on;
}
application livetwo {
live on;
}
application livethree {
live on;
}
application livefour {
live on;
}
application hls {
live on;
hls on;
hls_path /usr/local/nginx/html/hls;
#hls_path /usr/local/nginx/logs;
# hls_fragment 8s;
}
application dash{
live on;
dash on;
dash_path /usr/local/nginx/html/dash;
}
}
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
server {
listen 8002;
server_name localhost;
location / {
root html;
index index.html index.htm;
}
location /live{
flv_live on;
chunked_transfer_encoding on;
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
}
location /livetwo{
flv_live on;
chunked_transfer_encoding on;
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
}
location /hls{
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
root /usr/local/nginx/html/hls;
add_header 'Cache-Control' 'no-cache';
}
location /dash {
root /usr/local/nginx/html/dash;
add_header 'Cache-Control' 'no-cache';
}
location /stat {
#configuration of push & pull status
rtmp_stat all;
rtmp_stat_stylesheet stat.xsl;
}
location /stat.xsl {
root /usr/local/nginx/nginx-http-flv-module-master;
}
location /control {
rtmp_control all; #configuration of control module of rtmp
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
}
以上为 linux 下搭建视频流服务器的全部过程