参考文章：
https://blog.csdn.net/whatareyouding/article/details/144317654
https://www.cnblogs.com/Gredae/p/18362900
https://www.cnblogs.com/kn-zheng/p/17422707.html
https://blog.51cto.com/u_16099344/10281495
https://www.tulingxueyuan.cn/tlzx/jsp/2198.html
https://blog.csdn.net/wzt001005/article/details/145032455
搭建Nginx
1、下载包到/usr/local位置
wget或者手动下载，注意做好版本映射支持关系
nginx-1.24.0.tar.gz
nginx-http-flv-module-1.2.9.tar.gz
2、解压下载的两个文件：
tar -zxvf 文件名
3、安装所需依赖
RHEL
yum -y install gcc gcc-c++ openssl openssl-devel zlib zlib-devel pcre pcre-devel
Ubuntu
sudo apt update
sudo apt install -y gcc g++ libssl-dev zlib1g-dev libpcre3 libpcre3-dev
4、配置编译项
进入目录/usr/local/nginx-1.24.0
如有error检查路径
./configure --prefix=/usr/local/nginx --add-module=/usr/local/nginx-http-flv-module-1.2.9
5、安装
如有error检查缺少的依赖，根据提示安装
make
sudo make install
6、验证安装
/usr/local/nginx/sbin/nginx -V
如果在输出中未看到 --add-module 参数，可能表示模块未成功编译进 Nginx
[root@iZf4o05j05ne6r1jkkogkpZ local]# /usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.24.0
built by gcc 4.4.7 20120313 (Red Hat 4.4.7-17) (GCC)
built with OpenSSL 3.0.8 7 Feb 2023
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --add-module=/usr/local/nginx-http-flv-module-1.2.9
[root@iZf4o05j05ne6r1jkkogkpZ local]#
配置Nginx
修改/usr/local/nginx/conf/nginx.conf
配置rtmp，服务端口，live路径等
#user nobody;
worker_processes 1;
events {
worker_connections 1024;
}
rtmp {
server {
listen 1935;
chunk_size 4096;
application live {
live on;
record off;
}
}
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
server {
listen 8099;
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-Credentials' 'true';
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Headers' 'X-Requested-With';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Cache-Control' 'no-cache';
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
}
安装ffmpeg
Ubuntu/Debian
sudo apt update
sudo apt install ffmpeg
ffmpeg -version
CentOS/RHEL
sudo yum install ffmpeg ffmpeg-devel
ffmpeg -version
RTMP转http-flv视频流
已知我的视频流：rtsp://10.21.37.252:554/rtp/0501001305
输入命令ffmpeg -i "rtsp://10.21.37.252:554/rtp/0501001305" -vcodec copy -acodec copy -f flv "rtmp://127.0.0.1:1935/live/0501001305"
然后浏览器访问http://127.0.0.1:8081/live?port=1935&app=live&stream=0501001305
就可以看到视频可以播放了，或者vlc访问测试
这个地址可以直接嵌入浏览器播放：http://127.0.0.1:8081/live?port=1935&app=live&stream=0501001305
如果对画质等视频参数进行调整可以研究下ffmpeg
java调用
得到outUrl地址为http-flv地址
String rtspUrl = "rtsp://10.21.37.252:554/rtp/0501001305";
String outUrl = null;
// 如果流地址不为空，进行转码：
if (rtspUrl != null) {
try {
LOGGER.info("===准备转流===：{}", rtspUrl);
String[] parts = rtspUrl.split("/");
String channelCode = parts[parts.length - 1];
String rtmpUrl = "rtmp://127.0.0.1:1935/live/" + channelCode;
// 创建 ffmpeg 命令
String[] command = {
"ffmpeg",
"-i", rtspUrl,
"-vcodec", "copy",
"-acodec", "copy",
"-f", "flv",
"-fflags", "+genpts", // 生成新的时间戳，可能有助于解决时间戳无效或不连续的问题
rtmpUrl
};
// 创建 ProcessBuilder
ProcessBuilder processBuilder = new ProcessBuilder(command);
// 启动进程
Process process = processBuilder.start();
// 创建一个线程来处理进程输出
new Thread(() -> {
try (BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()))) {
String line;
while ((line = reader.readLine()) != null) {
LOGGER.info("FFmpeg Output: {}", line);
}
} catch (IOException e) {
LOGGER.error("Error reading ffmpeg output: {}", e.getMessage());
}
}).start();
// 创建一个线程来处理进程错误流
new Thread(() -> {
try (BufferedReader errorReader = new BufferedReader(new InputStreamReader(process.getErrorStream()))) {
String line;
while ((line = errorReader.readLine()) != null) {
LOGGER.error("FFmpeg Error: {}", line);
}
} catch (IOException e) {
LOGGER.error("Error reading ffmpeg error stream: {}", e.getMessage());
}
}).start();
outUrl = "http://127.0.0.1:8081/live?port=1935&app=live&stream=" + channelCode;
} catch (Exception e) {
e.printStackTrace();
LOGGER.error(e.toString());
}
前端vue播放
样式根据需要调整
<div id="video_Player" class="video_mian video_mian_bg">
<video
id="mmiid"
class="video-js vjs-big-play-centered vjs-fluid"
controls
preload="auto"
width="100%"
height="100%">
</video>
</div>
import Videojs from 'video.js'
import 'video.js/dist/video-js.css'
import "videojs-flvjs-es6";
startLive(this.send).then((res) => {
console.log(res) // 得到http-flv地址
this.videoPlayer = Videojs(document.querySelector('#mmiid'), {
autoplay: 'muted',//自动播放
controls: true,//用户可以与之交互的控件
loop: true,//视频一结束就重新开始
muted: false,//默认情况下将使所有音频静音
aspectRatio: "16:9",//显示比率
fullscreen: {
options: {navigationUI: 'hide'}
},
techOrder: ["html5", "flvjs"],// 兼容顺序
flvjs: {
mediaDataSource: {
isLive: false,
cors: true,
withCredentials: false
}
},
sources: [{
src: res.data,
type: "video/x-flv"
}]
})
});
![[python脚本]论文1.（一）CPU/内存数据分析和分组](https://i-blog.csdnimg.cn/direct/8e233ca54c1b48fc95c7d4e0196d30bf.png)