Opendigitalradio/mmbtools

The Opendigitalradio/mmbtools docker image aims at providing a sandboxed environment for the Multi Media Broadcasting tools from Opendigitalradio.

Content of the image

Component	Description
jgoerzen/debian-base-minimal	base debian image with systemd
odr-audioenc	audio encoder
odr-padenc	program-associated-data encoder
odr-dabmux	dab multiplexer
odr-dabmod	dab modulator
odr-EncoderManager	encoder manager
configuration files	sample configuration files

Usage

Start the docker container

docker run \
	--name mmbtools \
	--tty \
	--detach \
	--publish 8001-8003:8001-8003 \
	--publish 9201:9201 \
	--volume /sys/fs/cgroup:/sys/fs/cgroup:rw \
	--volume /etc/localtime:/etc/localtime:ro \
	--stop-signal=SIGRTMIN+3 \
	--tmpfs /run:size=100M \
	--tmpfs /run/lock:size=100M \
	--cgroupns=host \
opendigitalradio/mmbtools

If you have a USB transceiver and if you intend to broadcast, then you should:

• Plug your USB transceiver
• Run the command lsusb and identify the bus number and device number of your transceiver
• Add the argument --device /dev/bus/usb/xxx/yyy to the above docker run command where xxx is the bus number and yyy if the device number

Access the components

Component	Action	URL	Authentication
Supervisor	n/a	localhost:8001	user: odr password: odr
Encoder Manager	Start 10-EncoderManager	localhost:8003	user: odr password: odr
Multiplex Manager	Start 20-Mulitplex Start 21-Multiplex-Manager	localhost:8002	n/a

Test-1: check the encoders

• Access the supervisor (http://localhost:8001)
• Start 10-EncoderManager
• Log into the Encoder Manager (http://localhost:8003)
• Open the status tab
• Check the audio levels and the DLS text

Test-2: check the multiplex

• Install dablin on a GUI host
• Access the supervisor (http://localhost:8001)
• Start the audio and PAD encoders
• Start 20-Multiplex
• Run the following command to view the multiplex information and hear the radio streams (by default the first one):

  nc localhost 9201 | dablin_gtk -f edi -I -1
  

Test-3: check the modulator

If you have a USB transceiver card and wish to broadcast on a channel other than 5A, or if you have a USB transceiver card othen than the HackRF, then

• Get a command line inside the running container:

   docker exec \
   	--interactive \
   	--tty \
   	mmbtools \
   	bash
  

• Follow these instructions
• Access the supervisor (http://localhost:8001)
• Start the audio and PAD encoders
• Start 20-Multiplex
• Start 30-Modulator

Sources

github