Audio and video (1) Use FFMpeg tool to push streams and build streaming media server Nginx + RTMP

Protocol introduction

• RTMP protocol
  • Full name: Real Time Messaging Protocol, real-time messaging protocol
  • Introduction: It is an open protocol developed by Adobe Systems for audio, video and data transmission between Flash players and servers.
  • Protocol: Long connection TCP
  • Principle: Data at each moment is forwarded immediately after receipt
  • Delay: 1~3 seconds
  • Advantages: Supported by mainstream CDNs and used by most live broadcast products on the market. The protocol is simple and easy to implement
  • Disadvantages: Based on TCP protocol, high overhead. Adobe proprietary agreement.
• HLS protocol
  • Full name: HTTP Live Streaming
  • Protocol: Short connection HTTP
  • Principle: Collect data for a period of time, generate ts slice files, and update m3u8
  • Delay: greater than 10 seconds
• HTTP-FLV protocol
  • Full name: RTMP over HTTP
  • Protocol: Long connection HTTP
  • Principle: Same as RTMP, using HTTP protocol
  • Delay: 1~3 seconds

Streaming media server introduction

• red5(java) and FMS commercial
• crtmpserver
• Nginx + RTMP plugin

crtmpserver builds streaming media server

• Install
  • cmake installation: apt-get install cmake
  • SSL library installation: apt-get install libssl-dev
  • crtmpserver download and installation
    • Download: wget https://codeload.github.com/j0sh/crtmpserver/zip/centosinit
    • Unzip: unzip centosinit
    • Enter the crtmpserver-centosinit/builders/cmake directory and executecmake ., then executemake
• run
  • Enter the crtmpserver-centosinit/builders/cmake/ directory and execute./crtmpserver/crtmpserver crtmpserver/crtmpserver.lua
  • If it runs successfully, the following printout will appear:
• Note: Try to choose version 16 for Ubuntu, otherwise compilation errors may occur. Ubuntu can be downloaded from here

FFmpeg download and installation

• download link
• You can choose a version to download, I chose this one
  
• After decompression, you can configure the path of the executable program ffmpeg.exe into the path of the system environment variable.
  

Push streaming using FFMpeg

• Push command: ffmpeg.exe -i 001.mp4 -c copy -f flv rtmp://192.168.206.131/live/test1
• Parameter Description
  • ffmpeg.exe: The FFmpeg executable program just installed
  • 001.mp4: Video file, you can choose any one
  • 192.168.206.131: This address is the address of the crtmpserver server we just built

Test using VLC player

• Download address: Just install it directly after downloading
• Open VLC, select play, and copy the URL here
  
• Execute the push command to play the pushed video.
  

Nginx download and installation

• Note: Install dependencies first, do not install nginx yet
• You can refer to my other article nginx download and installation

Nginx-rtmp download and install

• git clone https://github.com/arut/nginx-rtmp-module.git Note here that you need to use git to pull. Compiling the zip compressed package downloaded directly from the website may report an error.
• To install Nginx, enter the directory of the Nginx installation package, execute ./configure --add-module=[Nginx-rtmp path], and then execute make and make install

Nginx-rtmp configuration

• Add the following content to the outermost layer of the /usr/local/nginx/conf/nginx.conf configuration file

•   rtmp {
        server{
                listen 10088;
                chunk_size 4096;
                application live
                {
                        live on;
                }
        }
    }
  

• After configuring, start nginx

Push streaming

• ffmpeg.exe -i 001.mp4 -c copy -f flv rtmp://192.168.206.131:10088/live

play

Show push status on web page

• Add the following content to the http node in the /usr/local/nginx/conf/nginx.conf configuration file

•      server {
                listen 10010;
                location /stat {
                        rtmp_stat all;
                        rtmp_stat_stylesheet stat.xsl;
                }
                location /stat.xsl {
                		# 你的nginx-rtmp包的路径
                        root //home/lingp/share/nginx-rtmp-module;
                }
        }
  

• Reload configuration ./nginx -s reload
• Re-visit this address http://192.168.206.131:10010/stat and you will see the push status
  

Use ffplay to play

• In the same directory as your ffmpeg program, execute ffplay.exe rtmp://192.168.206.131:10088/live -fflags nobuffer