Java 监控直播流rtsp协议转rtmp、hls、httpflv协议返回浏览器
目录
在做之前的项目的时候有一个对接摄像头实时播放的需求,由于我们摄像头的购买量不是很多,海康威视不给我们提供流媒体云服务器,所以需要我们自己去 一个去满足我们能在浏览器看到监控画面。项目源代码在以前公司没有拷贝就不能复习,最近又在准备面试,所以写了这个博客来复盘和扩展一下,由于我现在没有Liunx,我就用Windows来演示,生产环境还是要使用Liunx,下面这些操作在Liunx也是一样的流程,大家自行百度。
媒体流协议对比
协议
HttpFlv
RTMP
HLS
Dash
全称
FLASH VIDEO over HTTP
Real Time Message Protocol
HTTP Living Streaming
传输方式
HTTP长连接
TCP长连接
HTTP短连接
HTTP短连接
视频封装格式
FLV
FLV TAG
TS文件
Mp4
3gp
webm
原理
同RTMP,使用HTTP协议(80端口)
每个时刻的数据收到后立刻转发
集合一段时间的数据,生成TS切片文件(三片),并更新m3u8索引
延时
低
1~3秒
低
1~3秒
高
5~20秒(依切片情况)
高
数据分段
连续流
连续流
切片文件
切片文件
Html5播放
可通过HTML5解封包播放
(flv.js)
不支持
可通过HTML5解封包播放
(hls.js)
如果dash文件列表是MP4,
webm文件,可直接播放
其它
需要Flash技术支持,不支持多音频流、多视频流,不便于seek(即拖进度条)
跨平台支持较差,需要Flash技术支持
播放时需要多次请求,对于网络质量要求高
nginx:下载地址:http://nginx-win.ecsds.eu/download/
nginx-rtmp-module:nginx 的扩展,安装后支持rtmp协议,下载地址:https://github.com/arut/nginx-rtmp-module
解压nginx-rtmp-module到nginx根目录下,并修改其文件夹名为nginx-rtmp-module(原名为nginx-rtmp-module-master)
到nginx根目录下的conf目录下复制一份nginx-win.conf 重命名 nginx-win-rtmp.conf
nginx-win-rtmp.conf:
#user nobody;
# multiple workers works !
worker_processes 2;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 8192;
# max value 32768, nginx recycling connections+registry optimization =
# this.value * 20 = max concurrent connections currently tested with one worker
# C1000K should be possible depending there is enough ram/cpu power
# multi_accept on;
}
rtmp {
server {
listen 1935;
chunk_size 4000;
application live {
live on;
# 播放时进行回调,如果HttpRespone statusCode不等于200会断开
# on_play http://localhost:8081/auth;
}
application hls {
live on;
# 开启hls切片
hls on;
# m3u8地址
hls_path html/hls;
# 一个切片多少秒
hls_fragment 8s;
# on_play http://localhost:8081/auth;
# on_publish http://localhost:8081/auth;
# on_done http://localhost:8081/auth;
}
}
}
http {
#include /nginx/conf/naxsi_core.rules;
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr:$remote_port - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
# # loadbalancing PHP
# upstream myLoadBalancer {
# server 127.0.0.1:9001 weight=1 fail_timeout=5;
# server 127.0.0.1:9002 weight=1 fail_timeout=5;
# server 127.0.0.1:9003 weight=1 fail_timeout=5;
# server 127.0.0.1:9004 weight=1 fail_timeout=5;
# server 127.0.0.1:9005 weight=1 fail_timeout=5;
# server 127.0.0.1:9006 weight=1 fail_timeout=5;
# server 127.0.0.1:9007 weight=1 fail_timeout=5;
# server 127.0.0.1:9008 weight=1 fail_timeout=5;
# server 127.0.0.1:9009 weight=1 fail_timeout=5;
# server 127.0.0.1:9010 weight=1 fail_timeout=5;
# least_conn;
# }
sendfile off;
#tcp_nopush on;
server_names_hash_bucket_size 128;
## Start: Timeouts ##
client_body_timeout 10;
client_header_timeout 10;
keepalive_timeout 30;
send_timeout 10;
keepalive_requests 10;
## End: Timeouts ##
#gzip on;
server {
listen 5080;
server_name localhost;
location /stat {
rtmp_stat all;
rtmp_stat_stylesheet stat.xsl;
}
location /stat.xsl {
root nginx-rtmp-module/;
}
location /control {
rtmp_control all;
}
location /hls {
# Serve HLS fragments
types {
application/vnd.apple.mpegurl m3u8;
video/mp2t ts;
}
expires -1;
add_header Access-Control-Allow-Origin *;
}
#charset koi8-r;
#access_log logs/host.access.log main;
## Caching Static Files, put before first location
#location ~* \.(jpg|jpeg|png|gif|ico|css|js)$ {
# expires 14d;
# add_header Vary Accept-Encoding;
#}
# For Naxsi remove the single # line for learn mode, or the ## lines for full WAF mode
location / {
#include /nginx/conf/mysite.rules; # see also http block naxsi include line
##SecRulesEnabled;
##DeniedUrl "/RequestDenied";
##CheckRule "$SQL >= 8" BLOCK;
##CheckRule "$RFI >= 8" BLOCK;
##CheckRule "$TRAVERSAL >= 4" BLOCK;
##CheckRule "$XSS >= 8" BLOCK;
root html;
index index.html index.htm;
}
# For Naxsi remove the ## lines for full WAF mode, redirect location block used by naxsi
##location /RequestDenied {
## return 412;
##}
## Lua examples !
# location /robots.txt {
# rewrite_by_lua '
# if ngx.var.http_host ~= "localhost" then
# return ngx.exec("/robots_disallow.txt");
# end
# ';
# }
#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; # single backend process
# fastcgi_pass myLoadBalancer; # or multiple, see example above
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME $document_root$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 spdy;
# server_name localhost;
# ssl on;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_timeout 5m;
# ssl_prefer_server_ciphers On;
# ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
# ssl_ciphers ECDH+AESGCM:ECDH+AES256:ECDH+AES128:ECDH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!eNULL:!MD5:!DSS:!EXP:!ADH:!LOW:!MEDIUM;
# location / {
# root html;
# index index.html index.htm;
# }
#}
}
nginx.exe -c conf\nginx-win-rtmp.conf
测试:浏览器输入 http://localhost:5080/stat,看到
代表安装成功
ffmpeg:一个处理音视频强大的库,我们需要用它来转协议,下载地址:https://www.gyan.dev/ffmpeg/builds/ ,这里可以下载essential和full版本,essential就是简版,只包含ffmpeg.exe、ffplay.exe、
ffprobe.exe, 而full版本就包含了动态库和相关头文件,方便我们在开发中调用。
将ffmpeg解压后里面的bin路径复制到Path里面去
cmd ffmpeg -version
命令看到代表成功
下载地址:https://www.videolan.org/vlc/
我这里截图是海康威视的
现在没有测试的流,我找了个点播的rtsp
rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mp4,用这个代替是一样的
ffmpeg强大,命令也是复杂,我们cmd 执行
ffmpeg -re -rtsp_transport tcp -stimeout 20000000 -i "rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mp4" -buffer_size 1024000 -max_delay 500000 -codec:v libx264 -r 25 -rtbufsize 10M -s 1280x720 -map:v 0 -an -f flv rtmp://127.0.0.1:1935/live/test
rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mp4,是输入源头
rtmp://127.0.0.1:1935/live/test 是输出地址
如果没有报错的话,到现在rtsp就已经转换好了
ffmpeg命令学习:https://www.jianshu.com/p/df3216a52e59 、https://blog.csdn.net/fuhanghang/article/details/123565920
我们打开VLC,媒体->打开网络串流->输入 rtmp://127.0.0.1:1935/live/test
-> 播放
等待几秒钟看到有视频播放就是成功了
rtmp的优点是延迟低,效率高,但是在浏览器需要安装flash才能放,也就老版本的浏览器在用,rtmp可能会在别的地方支持,所以还是把他方式方法贴出来了。
在前面已经贴出来了,其中这几个是针对hls的
ffmpeg -i "rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mp4" -vcodec libx264 -acodec aac -f flv rtmp://127.0.0.1:1935/hls/test
生成了代表一切正常
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>前端播放m3u8格式视频</title>
<!--https://www.bootcdn.cn/video.js/-->
<link href="https://cdn.bootcss.com/video.js/7.6.5/alt/video-js-cdn.min.css" rel="stylesheet">
<script src="https://cdn.bootcss.com/video.js/6.6.2/video.js"></script>
<!--https://www.bootcdn.cn/videojs-contrib-hls/-->
<script src="https://cdn.bootcss.com/videojs-contrib-hls/5.15.0/videojs-contrib-hls.min.js"></script>
</head>
<body>
<video id="myVideo" class="video-js vjs-default-skin vjs-big-play-centered" controls preload="auto" width="1080" height="708" data-setup='{}'>
<source id="source" src="http://127.0.0.1:5080/hls/test.m3u8" type="application/x-mpegURL">
</video>
</body>
<script>
// videojs 简单使用
var myVideo = videojs('myVideo',{
bigPlayButton : true,
textTrackDisplay : false,
posterImage: false,
errorDisplay : false,
})
myVideo.play() // 视频播放
myVideo.pause() // 视频暂停
</script>
</html>
source标签的src属性:http://你的nginx ip:nginx http端口/hls/test.m3u8
rtsp转HLS成功!
m3u8文件里面存储了一个索引,以文本格式打开是这样的
#EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:56
#EXT-X-TARGETDURATION:13
#EXTINF:10.381,
test-56.ts
#EXTINF:10.422,
test-57.ts
#EXTINF:13.453,
test-58.ts
m3u8文件它不是视频源,源头是ts后缀文件
转HLS协议及网页加载过程:
ffmepg收到rtsp的流时候,会等一个切片的时间,一个切片时间到了,切片ts会放到服务器中,同时m3u8文件中加一个索引,对应着新进入的切片。网页在加载m3u8的时候,就是读取m3u8中的的索引去加载ts文件,所以在不断的请求ts,对ts进行解析,不断的和TCP握手,这就是为什么HLS延迟高和对网速的要求高的原因,我们监控肯定是要延迟低的,HLS兼容性好,适合点播。
这个插件需要编译,教程:https://blog.csdn.net/KayChanGEEK/article/details/105095844
我这里已经编译好了,直接下载启动:
https://gitee.com/isyuesen/nginx-flv-file
看我git里面的https://gitee.com/isyuesen/nginx-flv-file/blob/master/conf/nginx.conf,和默认的config差别主要是添加了这几个
rtmp {
server {
listen 1935;
# 流复用的最大块大小
chunk_size 4000;
application liveapp {
live on;
# 推流开始
on_publish http://localhost:8081/auth;
# 推流关闭
on_publish_done http://localhost:8081/auth;
# 客户端开始播放
on_play http://localhost:8081/auth;
# 客户端结束播放
on_play_done http://localhost:8081/auth;
}
}
}
location /live {
flv_live on;
chunked_transfer_encoding on;
add_header 'Access-Control-Allow-Credentials' 'true'; #add additional HTTP header
add_header 'Access-Control-Allow-Origin' '*'; #add additional HTTP header
add_header Access-Control-Allow-Headers X-Requested-With;
add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
add_header 'Cache-Control' 'no-cache';
}
nginx rtmp配置中有配置on_publish钩子接口 http://localhost:8081/auth,这个回调HttpResponse stausCode如果不等于200会拒绝I/O,更多回调钩子看:https://github.com/arut/nginx-rtmp-module/wiki/Directives#on_connect
@PostMapping("/auth")
public void getVideo(String token, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception {
if (token.equals("tokenValue")) {
httpServletResponse.setStatus(200);
} else {
// 拒绝服务
httpServletResponse.setStatus(500);
}
}
ffmpeg -re -rtsp_transport tcp -i "rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mp4" -f flv -vcodec h264 -vprofile baseline -acodec aac -ar 44100 -strict -2 -ac 1 -f flv -s 640*360 -q 10 "rtmp://127.0.0.1:1935/liveapp/test"
依赖 javaCV
<dependency>
<groupId>org.bytedeco</groupId>
<artifactId>javacv-platform</artifactId>
<version>1.5.2</version>
</dependency>
public class App {
public static void main( String[] args ) throws IOException, InterruptedException {
String name = "test";
// rtsp地址
String rtspDir = "rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mp4";
// rtmp地址
String rtmpDir = "rtmp://192.168.0.140:1935/liveapp/" + name + "?token=tokenValue";
String ffmpeg = Loader.load(org.bytedeco.ffmpeg.ffmpeg.class);
ProcessBuilder pb = new ProcessBuilder(ffmpeg,
"-re",
"-rtsp_transport",
"tcp",
"-i",
rtspDir,
"-f",
"flv",
"-vcodec",
"h264",
"-vprofile",
"baseline",
"-acodec",
"aac",
"-ar",
"44100",
"-strict",
"-2",
"-ac",
"1",
"-f",
"flv",
"-s",
"640*360",
"-q",
"10",
rtmpDir
);
pb.inheritIO().start().waitFor();
}
}
如果你跟着我做的,那链接就是 http://127.0.0.1:18080/live?port=1935&app=liveapp&stream=test&token=tokenValue,在VLC播放器中点击媒体 -> 打开网络串流 -> 输入http://127.0.0.1:18080/live?port=1935&app=liveapp&stream=test&token=tokenValue -> 播放
有视频证明你离成功就差最后一步
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>播放http-flv</title>
</head>
<body>
<video id="videoElement"></video>
<script src="https://cdn.bootcdn.net/ajax/libs/flv.js/1.6.2/flv.min.js"></script>
<script>
if (flvjs.isSupported()) {
const videoElement = document.getElementById('videoElement');
const flvPlayer = flvjs.createPlayer({
type: 'flv',
url: 'http://127.0.0.1:18080/live?port=1935&app=liveapp&stream=test&token=tokenValue'
});
flvPlayer.attachMediaElement(videoElement);
flvPlayer.load();
flvPlayer.play();
}
</script>
</body>
</html>
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