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In this article, we will explain how to build a vod service with nginx + RTMP module.

Mirror download, domain name resolution, time synchronization please click alibaba open source mirror site author: Tang Qingsong

First, operating environment

In order to deploy this service to the production environment in the later stage, we will adopt docker method to build this service. In addition, we usually use Linux system as the server in the production environment. Therefore, we will take Ubuntu system as an example to explain how to build other systems.

1. The docker container

The default port for the RTMP service is 1935. In addition, after installing nginx, you need to open an HTTP port. In order to prevent conflicts with the host, port 8081 is used. We need to copy the video file to the container, so we also need to mount a directory, docker container run command as follows:

Docker run - name video - v/Users/tangqingsong/files: / root/videos - d - I - p, 8081:8081-1935: p 1935 ubuntu: 18.04 && docker  psCopy the code

After the command is executed, docker returns the following result:

As you can see in the image above, we already have a container running. Then we need to go into the container and install the nginx and RTMP modules.

docker exec -it video bash
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After the command is executed, the following information is displayed:

In the figure above, you can see that the root account name is displayed to the left of the cursor position, indicating that the container has been successfully entered.

2. Domestic accelerators

We replaced the apt software source with the address of Ali Yunyuan and executed the following command:

echo 'deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
' > /etc/apt/sources.list  && cat /etc/apt/sources.list
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After the command is executed, the following information is returned:

It can be seen from the above figure that the implementation has been successful and the default software source has been replaced by the software source of Ali Cloud.

3. Update the software source list

Next we update the local software source information by executing the command shown below

apt update
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After the command is executed, the following information is displayed

It can be seen from the above figure that we have updated the software source information from Ali Cloud and the update speed is very fast. So far, we have completed the basic preparation of the running environment.

Nginx installation

 

1. Install Nginx dependencies

After we update apt software source, we can install Nginx and other software dependent environment, execute the command as follows:

apt-get install -y libpcre3 libpcre3-dev libssl-dev zlib1g-dev gcc  wget unzip vim make curl
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After the command is executed, the following information is returned:

Nginx can not be installed with APT, it needs source code compilation to install nginx, because we need to compile a module into it.

2. Download source code

Nginx-rtmp-module, nginx-http-flV-module, nginx-rtmp-module, nginx-http-flV-module, nginx-rtmp-module First download it and unzip it, execute the following command:

wget https://github.com/winshining/nginx-http-flv-module/archive/master.zip ; unzip master.zip
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After the command is executed, the following information is returned:

Download the nginx source code and unzip the nginx source code as follows:

Wget http://nginx.org/download/nginx-1.17.6.tar.gz && tar - ZXVF nginx - 1.17.6. Tar. GzCopy the code

After the command is executed, the following information is returned:

Download and decompress complete, to this we need two source code are ready to complete

3. Compile and install

Nginx: nginx: nginx: nginx: nginx

CD nginx - 1.17.6 && lsCopy the code

After the command is executed, the following information is returned:

/configure: nginx-http-flv-module: nginx-http-flv-module: nginx-http-flv-module

./configure --add-module=.. /nginx-http-flv-module-masterCopy the code

After the command is executed, the following information is returned:

As you can see in the figure above, preparation is complete, but there may be some unexpected factors during the compilation process. Nginx is very strict by default, and the compilation will be interrupted if there are some unexpected things. Therefore, we set some non-fatal accidents to warning mode, and execute the following command:

vim objs/Makefile
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There is an objs/Makefile file in the current folder, we delete -werror in it, open the file with vim, execute the command as follows, and return the information as shown in the picture below

Once deleted, save and exit, Nginx is ready to compile, which takes a bit longer, using the following command

make
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After the command is executed, the following information is displayed

In the figure above, you can see some Nginx log path information. When we execute the installation command, we will write the corresponding information to these files

make install
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After the installation command is executed, the following information is displayed

In the figure above, you can see which commands are roughly executed during the installation process. After the installation is complete, some simple configuration is required to use them.

3. Configure the RTMP service

 

1. Add the RTMP service

We directly use the vim command to edit the Nginx configuration file, as shown below

vim /usr/local/nginx/conf/nginx.conf
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After the vim command is executed, the following edit window opens

Let’s copy and paste the following configuration information into the configuration file information above the HTTP configuration

RTMP {#RTMP server {listen 1935; #// Service port chunk_size 4096; Application vod {play /opt/video/vod; #// Video file location. }}}Copy the code

 

2. Verify the configuration

After pasting and saving, run the nginx -t command on the terminal to test whether the configuration file is abnormal, as shown below

/usr/local/nginx/sbin/nginx -t
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After the command is executed, the following information is displayed

$Nginx = $Nginx = $Nginx = $Nginx = $Nginx = $Nginx = $Nginx = $Nginx = $Nginx = $Nginx = $Nginx = $Nginx = $Nginx

/ usr/local/nginx/sbin/nginx && curl http://127.0.0.1Copy the code

After the command is executed, the following information is displayed

From the information returned by Nginx, we can see that the Nginx service has been started successfully.

Iv. Video playback

 

1. Add a video file

Then we create a folder to store the video, and set the permission setting to 777, in case the video cannot be played due to the permission problem, execute the command as follows

mkdir -p /opt/video/vod  && chmod -R 777 /opt/video/vod
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After the command is executed, the following information is displayed

As can be seen from the above figure, the commands to create folders and set permissions have been executed. Then we need to copy our prepared video files to the directory specified in our previous configuration, and execute the commands as follows

cp /root/videos/out.mp4 /opt/video/vod &&  ls /opt/video/vod
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After the command is executed, the following information is displayed

As you can see in the image above, the video file out.mp4 has been copied to this directory, and we can test the playback; We’ll need to install a video player before we can test it, because the browser doesn’t support RTMP.

2. Install the VLC player

Generally used for debugging streaming media, we are used to using VLC player, let’s go to the official website to download it, the official website address is as follows

https://www.videolan.org/
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After using the browser to open the official website, we can see the download button on the home page. It can also be seen that various platforms are supported, and the current system version is downloaded by default, as shown in the figure below

After downloading and installing the VLC player, we need to go to File->Open Network in the menu, as shown below

After clicking the Open Network option, a new window will Open. In this window, we can enter our playing address. The video playing address I copied in the past is shown below

rtmp://localhost/vod/out.mp4
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In the figure above, you can see that there is an input box in the window. After copying the playing address into it, click the Open button in the lower right to start playing. The successful playing effect is shown in the figure below

At this point, the vod service has been set up through the Nginx+ RTMP module.

This article is adapted from: Using Nginx+ RTMP module to build streaming media video on demand service in Ubuntu – Ali Cloud developer community

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