fcrespel / cec-api

REST API to control HDMI devices via the CEC protocol

CEC REST API

REST API to control HDMI devices via the CEC protocol.

Installation

Execute the following commands on a Debian or Ubuntu system to install the required dependencies:

apt-get update
apt-get install -y python3-cec python3-pip
pip install -r requirements.txt

Usage

Server

Execute the following command to run the server locally:

./app/server.py

You may then go to http://127.0.0.1:8000 to browse the documentation and test the API.

The following arguments are available:

./app/server.py [-h] [-a ADDRESS] [-p PORT] [-l LOG_LEVEL]

Optional arguments:
  -h, --help                           Show help message and exit
  -a ADDRESS, --address ADDRESS        Address to bind to (default: 127.0.0.1)
  -p PORT, --port PORT                 Port to listen on (default: 8000)
  -l LOG_LEVEL, --log-level LOG_LEVEL  Log level: CRITICAL, ERROR, WARNING, INFO, DEBUG (default: INFO)

A Docker image is also available for amd64 and arm64 architectures:

docker run -it --rm --device /dev/aocec -p 8000:8000 ghcr.io/fcrespel/cec-api:master [-h] [-a ADDRESS] [-p PORT] [-l LOG_LEVEL]

You may want to run it in the background using commands such as the following:

# Create and start container
docker run -d --name cec-api --device /dev/aocec -p 127.0.0.1:8000:8000 ghcr.io/fcrespel/cec-api:master

# Stop server
docker stop cec-api

# Start server
docker start cec-api

# Show live logs
docker logs -f cec-api

NOTE: the API port is not secured, make sure to only expose it locally or to trusted clients.

Client

You may call the API with any HTTP client such as curl:

# Get TV status:
curl -sSf -XGET http://127.0.0.1:8000/device/0/status

# Power on TV:
curl -sSf -XPUT http://127.0.0.1:8000/device/0/status -d 1

# Power off TV:
curl -sSf -XPUT http://127.0.0.1:8000/device/0/status -d 0

Device numbers are based on the CEC protocol:

• 0: TV
• 1: Recording 1
• 2: Recording 2
• 3: Tuner 1
• 4: Playback 1
• 5: Audio system
• 6: Tuner 2
• 7: Tuner 3
• 8: Playback 2
• 9: Recording 3
• 10: Tuner 4
• 11: Playback 3