python-cec allows you to control your TV, reciever and other CEC-compliant HDMI devices from a python script on a computer. Most computer graphics cards don't support CEC; you'll need a Pulse-Eight USB-CEC adapter or a Raspberry Pi (Untested).

To build python-cec, you need version 1.6.1 or later of the libcec development libraries:

On Gentoo:

sudo emerge libcec

On OS X:

brew install libcec

Ubuntu:

sudo apt-get install libcec-dev build-essential python-dev

Note: because Ubuntu ships an older version of libcec that lacks the ToggleMute function, that function will also be missing in python-cec

Rasbian:

I've done a custom build of a more recent libcec with Raspberry Pi support.

wget http://packages.namniart.com/repos/namniart.key -O - | sudo apt-key add -
sudo sh -c 'echo "deb http://packages.namniart.com/repos/pi wheezy main" > /etc/apt/sources.list.d/libcec.list'
sudo apt-get update
sudo apt-get install python-dev build-essential libcec-dev cec-utils

git clone -b 0.2.2 https://github.com/trainman419/python-cec.git
cd python-cec
python setup.py install

A simple example to turn your TV on:

import cec

cec.init()

tv = cec.Device(0)
tv.power_on()

import cec

adapters = cec.list_adapters() # may be called before init()

cec.init() # use default adapter
cec.init(adapter) # use a specific adapter

cec.close()  # not implemented yet

cec.add_callback(handler, events)
# the list of events is specified as a bitmask of the possible events:
cec.EVENT_LOG
cec.EVENT_KEYPRESS
cec.EVENT_COMMAND # not implemented yet
cec.EVENT_CONFIG_CHANGE # not implemented yet
cec.EVENT_ALERT
cec.EVENT_MENU_CHANGED
cec.EVENT_ACTIVATED
cec.EVENT_ALL
# the callback will receive a varying number and type of arguments that are
# specific to the event. Contact me if you're interested in using specific
# callbacks

cec.remove_callback(handler, events)

devices = cec.list_devices()

class Device:
   __init__(id)
   is_on()
   power_on()
   standby()
   address
   physical_address
   vendor
   osd_string
   cec_version
   language
   is_active() # not implemented yet
   set_av_input(input)
   set_audio_input(input)

cec.is_active_source() # not implemented yet
cec.set_active_source()  # not implemented yet
cec.set_inactive_source()  # not implemented yet

cec.volume_up()
cec.volume_down()
cec.toggle_mute()
# TODO: audio status

cec.set_physical_address(addr)
cec.can_persist_config()
cec.persist_config()
cec.set_port(device, port)

• Fix deadlock
• Add repr for Device

• Fix deadlock in Device

• Add initial callback implementation
• Fix libcec 1.6.0 backwards compatibility support

• Add libcec 1.6.0 backwards compatibility
• Known Bug: no longer compatible with libcec 2.1.0 and later

• First stable release

Copyright (C) 2013 Austin Hendrix [email protected]

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.