Livestream radio made easy with ffmpeg, thanks to @ottersarecool and noxy!

This scripts has the following dependencies:

• ffmpeg
• nginx

Which can be easily installed with these commands:

• Ubuntu/Debian: sudo apt install ffmpeg nginx
• Arch: pacman -S ffmpeg nginx

The first thing you have to do is edit your configs in livestream.sh:

nano livestream.h

Then you should add some music files to /music.
Important: note: since all the files are concatenated on the fly, they all must use the same codec!

You can skip this if you are already familiar with nginx or other webservers.
For starting nginx you simply do:

sudo service nginx start

For making it autostart at boot:

systemctl enable nginx

You need to set up a root dir for the livestream service, it may be a root dir of an existing nginx service or you could create a new one as you like.
We decided to go for /srv/stream you are free to choose whatever path you prefer!

sudo mkdir /srv/stream

This directory will be owned by root, and that's bad: we need to change the owner to the user nginx runs with, in this example it's the Debian default nginx user www-data.

sudo chown -R www-data:www-data /srv/stream/

Next you want to add a new server block to your nginx.conf located at /etc/nginx/services/sites-available.

sudo nano /etc/nginx/services/sites-available

You could edit the default configuration or create a new one, in that case don't forget to link it to sites-available:

ln -s /etc/nginx/sites-available/yourconfig /etc/nginx/sites-enabled/yourconfig

The configuration could be something like this

server {
    listen [::]:80;        # Listens on port 80 for IPV6
    listen 80;             # Listens on port 80 for IPV4
    server_name localhost; # This is your server name. it can be your domain
    index index.html;      # This is the default file nginx will look for
    root /srv/stream;      # Your webroot

    # If you want to make your recordings public and accessible by anyone:
    location /vods {
        autoindex on;
    }
}

You can test your config with:

nginx -t

If your output is this, you are mostly good to go!

nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful

Finally reload the nginx config:

nginx -s reload

You're done! Your nginx server should now listen on port 80.
You can access it by simply visiting http://localhost.

Get Certbot and follow the instructions.

If you want to stream encrypted all you need to do is to add a few more lines to your nginx configuraiton file, outside the http context!
Our advice is to let the stream server only run on localhost, so that nginx establishes unencrypted connections only for connections between the same server!

stream {
    server {
        listen 1935 ssl;
        proxy_pass 127.0.0.1:6645; # This port should match the one you choose
        proxy_buffer_size 32k;
        ssl_certificate /etc/letsencrypt/live/your.domain.tld/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/your.domain.tld/privkey.pem;
    }
}

To create a video that will be displayed everytime your stream is offline, you can use the following commands. For videos:

ffmpeg -i VIDEO -c:v libx264 -t 5 -pix_fmt yuv420p offline.ts 

For images:

ffmpeg -loop 1 -i IMAGE -c:v libx264 -t 5 -pix_fmt yuv420p offline.ts 

Here's how you run the script:

./livestream.sh -s

For stopping the script:

./livestream.sh -q

For checking the script status:

./livestream.sh -u

You can create a new systemd service, with which you could automate the script start and more easily (for example at system boot, or making it restart in case of possible failures).
Before installing the service you should check the unit file stream.service to see if the working directory and running user are correct.

nano stream.service
sudo cp stream.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo service stream start

Then for starting the stream can simply type:

sudo service stream status

or, for reading the full log:

sudo journalctl -u stream.service

If you want to have it automatically started everytime you boot do:

sudo systemctl enable stream

Feel free to contribute, pull requests are always welcome.
Please reveiw and clean your code with shellcheck before pushing it.
If you want to help, Here below is a todo list.

• MP4 / webm (no js) stream
• Commands regex
• Playlists
• Music queue
• Pause
• Proper logging (levels)