HDMI CEC Rest API

Rest api to interact with the consumer electronics control of a hdmi device. Great for turning a raspberry pi into a tv remote.

API Reference

/device

Get list of all active devices

GET

• Request

curl http://localhost:5000/device

• Response

{
  "TV": {
    "PowerStatus": "standby",
    "PhysicalAddress": "0.0.0.0",
    "ActiveSource": false,
    "OSDName": "TV",
    "Vendor": "Samsung",
    "LogicalAddress": 0
  },
  "Playback": {
    "PowerStatus": "on",
    "PhysicalAddress": "1.0.0.0",
    "ActiveSource": false,
    "OSDName": "Roku 3",
    "Vendor": "",
    "LogicalAddress": 4
  },
  "Recording": {
    "PowerStatus": "on",
    "PhysicalAddress": "2.0.0.0",
    "ActiveSource": false,
    "OSDName": "cec.go",
    "Vendor": "Pulse Eight",
    "LogicalAddress": 1
  }
}

/device/[logical_address]

Get details for single device by its physical address

GET

• Request

curl http://localhost:5000/device/0

• Response

{
  "PowerStatus": "standby",
  "PhysicalAddress": "0.0.0.0",
  "ActiveSource": false,
  "OSDName": "TV",
  "Vendor": "Samsung",
  "LogicalAddress": 0
}

/device/[logical_address]/power

Get or set the power status for a device

GET

• Request

curl http://localhost:5000/device/0/power

• Response

{
    "status": "success",
    "message": "standby"
}

POST

• Request

# state can be "on" or "off"
curl -X POST -d '{"state": "on"}' http://localhost:5000/device/0/power

/device/[logical_address]/volume

Set the volume for a amplifier device

This will only work if the device is type Amplifier

POST

• Request

# state can be "up", "down", or "mute"
curl -X POST -d '{"state": "up"}' http://localhost:5000/device/0/volume

Installation

This assumes golang has been installed and $GOPATH set

• Install Dependencies
• Ubuntu/Debian

apt-get install libcec-dev cec-utils make

• Get Go Dependencies

go get

• Compile Binary

go build