Chromecast status

[piotr]

The Chromecast status can be retrieved in JSON (see http://fiquett.com/2013/07/chromecast-traffic-sniffing/). Would it be possible to add the Chromecast to Domoticz so we can use the status in events ?

[jannl]

Hm I have a chromecast. Why would you want to see the chromecast status?

[piotr]

To use it in Events. Example: Domoticz turns the lights off when it's past 23:00 AND no one is watching TV (Mediacenter virual switch). And: because we can

[Siewert308SW]

To use it in Events. Example: Domoticz turns the lights off when it's past 23:00 AND no one is watching TV (Mediacenter virual switch). And: because we can

Already done this by using the Network presence detection.
Dim lights when Chromcast/TV is on and brighten them when Chromcast/TV is off.
Or when nobody is home for more then 1hr and Chromecast/TV is off then switch OFF TV standby killer (KaKu unit)

[jannl]

ok, your tv has not network connection? That would make sense.

[Siewert308SW]

ok, your tv has not network connection? That would make sense.

Indeed, my TV doesn't have network connection and there for the Chromecast solves that issue

[Heisenberg]

Does someone know if it's possible to start a stream through Chromecast (audio) via Domoticz?

[wmn79]

Does someone know if it's possible to start a stream through Chromecast (audio) via Domoticz?

I don't know it but this repository was posted in the tweakers domoticz topic last week by user zeu: https://github.com/balloob/pychromecast
He has created a simple web interface himself to use with it and put it here: https://github.com/roberthorlings/chromecast-web maybe you can use these repositories to create your wanted situation.

[daandamhuis]

Does someone know if it's possible to start a stream through Chromecast (audio) via Domoticz?

I don't know it but this repository was posted in the tweakers domoticz topic last week by user zeu: https://github.com/balloob/pychromecast
He has created a simple web interface himself to use with it and put it here: https://github.com/roberthorlings/chromecast-web maybe you can use these repositories to create your wanted situation.

I'll give it a try Sunday, or maybe tonight.

[tbowmo]

Another possible scenario is, that when you start playback on chromecast it could dim down the lights automatically, and if the playback is paused, it could turn up the lights to normal levels..

Right now I have almost accomplished this, with pychromecast reporting into domoticz, and setting a dummy light switch according to play state. Works for most casts. Except netflix, it doesn't report back pause events (only play events, even when returning from pause state).

Right now I don't have any lights connected to domoticz (have it planned though). So I'm not pursuing netflix support actively at the moment. But I'm in the planning state of installing controllable led strips.

[daandamhuis]

Another possible scenario is, that when you start playback on chromecast it could dim down the lights automatically, and if the playback is paused, it could turn up the lights to normal levels..

Do you have an example script?

[tbowmo]

downloaded pychromecast from github https://github.com/balloob/pychromecast

and then using the following python script

Code: Select all

from __future__ import print_function
import time
import sys
import logging
import json
import codecs
from urllib.request import urlopen
from urllib.parse import urlencode

import pychromecast
import pychromecast.controllers.youtube as youtube

domoticz = "http://localhost:8080"


if '--show-debug' in sys.argv:
    logging.basicConfig(level=logging.DEBUG)

cast = pychromecast.get_chromecast()

class mediaListener:
    domurl="http://localhost:8080"
    device=20
    def __init__(self, domoticzurl, deviceno):
        self.domurl = domoticzurl
        self.device=deviceno
        self.oldPlayerStatus = 'NONE'

    def new_media_status(self, status):
        print("mediaListener")
        print(status)
        if (self.oldPlayerStatus != status.player_state):
            self.oldPlayerStatus = status.player_state
            if status.player_state == "PLAYING" or status.player_state == "BUFFERING":
                data = urlopen(self.domurl+"/json.htm?type=command&param=switchlight&idx="+self.device+"&switchcmd=on")
            else :
                data = urlopen(self.domurl+"/json.htm?type=command&param=switchlight&idx="+self.device+"&switchcmd=off")
            self.storeVariable('ChromeState', new_state)

    def storeVariable(self,name, value):
        value = urlencode({'vvalue':value, 'vname':name, 'vtype':2})
        d = urlopen(self.domurl+'/json.htm?type=command&param=updateuservariable&'+value)
        reader = codecs.getreader("utf-8")
        obj = json.load(reader(d))
        if (obj['status'] == 'ERR'):
            d = urlopen(self.domurl+'/json.htm?type=command&param=saveuservariable&'+value)

listener = mediaListener(domoticz, 106)

cast.media_controller.register_status_listener(listener)

while (1):
    pass

It's a draft and seems to work.. Setting a virtual switch on / off, according to the playing state. And also populates a uservariable with the current state.

I don't have any lights connected, so haven't checked how well this works.. (The lights are in development..)

[Varazir]

downloaded pychromecast from github https://github.com/balloob/pychromecast

and then using the following python script

Code: Select all

from __future__ import print_function
import time
import sys
import logging
import json
import codecs
from urllib.request import urlopen
from urllib.parse import urlencode

import pychromecast
import pychromecast.controllers.youtube as youtube

domoticz = "http://localhost:8080"


if '--show-debug' in sys.argv:
    logging.basicConfig(level=logging.DEBUG)

cast = pychromecast.get_chromecast()

class mediaListener:
    domurl="http://localhost:8080"
    device=20
    def __init__(self, domoticzurl, deviceno):
        self.domurl = domoticzurl
        self.device=deviceno
        self.oldPlayerStatus = 'NONE'

    def new_media_status(self, status):
        print("mediaListener")
        print(status)
        if (self.oldPlayerStatus != status.player_state):
            self.oldPlayerStatus = status.player_state
            if status.player_state == "PLAYING" or status.player_state == "BUFFERING":
                data = urlopen(self.domurl+"/json.htm?type=command&param=switchlight&idx="+self.device+"&switchcmd=on")
            else :
                data = urlopen(self.domurl+"/json.htm?type=command&param=switchlight&idx="+self.device+"&switchcmd=off")
            self.storeVariable('ChromeState', new_state)

    def storeVariable(self,name, value):
        value = urlencode({'vvalue':value, 'vname':name, 'vtype':2})
        d = urlopen(self.domurl+'/json.htm?type=command&param=updateuservariable&'+value)
        reader = codecs.getreader("utf-8")
        obj = json.load(reader(d))
        if (obj['status'] == 'ERR'):
            d = urlopen(self.domurl+'/json.htm?type=command&param=saveuservariable&'+value)

listener = mediaListener(domoticz, 106)

cast.media_controller.register_status_listener(listener)

while (1):
    pass

It's a draft and seems to work.. Setting a virtual switch on / off, according to the playing state. And also populates a uservariable with the current state.

I don't have any lights connected, so haven't checked how well this works.. (The lights are in development..)

Are you running on a raspberry pi? Looks like I have python 2.7 on my Pi and the script is made for 3 right ?

[daandamhuis]

downloaded pychromecast from github https://github.com/balloob/pychromecast

and then using the following python script

Code: Select all

from __future__ import print_function
import time
import sys
import logging
import json
import codecs
from urllib.request import urlopen
from urllib.parse import urlencode

import pychromecast
import pychromecast.controllers.youtube as youtube

domoticz = "http://localhost:8080"


if '--show-debug' in sys.argv:
    logging.basicConfig(level=logging.DEBUG)

cast = pychromecast.get_chromecast()

class mediaListener:
    domurl="http://localhost:8080"
    device=20
    def __init__(self, domoticzurl, deviceno):
        self.domurl = domoticzurl
        self.device=deviceno
        self.oldPlayerStatus = 'NONE'

    def new_media_status(self, status):
        print("mediaListener")
        print(status)
        if (self.oldPlayerStatus != status.player_state):
            self.oldPlayerStatus = status.player_state
            if status.player_state == "PLAYING" or status.player_state == "BUFFERING":
                data = urlopen(self.domurl+"/json.htm?type=command&param=switchlight&idx="+self.device+"&switchcmd=on")
            else :
                data = urlopen(self.domurl+"/json.htm?type=command&param=switchlight&idx="+self.device+"&switchcmd=off")
            self.storeVariable('ChromeState', new_state)

    def storeVariable(self,name, value):
        value = urlencode({'vvalue':value, 'vname':name, 'vtype':2})
        d = urlopen(self.domurl+'/json.htm?type=command&param=updateuservariable&'+value)
        reader = codecs.getreader("utf-8")
        obj = json.load(reader(d))
        if (obj['status'] == 'ERR'):
            d = urlopen(self.domurl+'/json.htm?type=command&param=saveuservariable&'+value)

listener = mediaListener(domoticz, 106)

cast.media_controller.register_status_listener(listener)

while (1):
    pass

It's a draft and seems to work.. Setting a virtual switch on / off, according to the playing state. And also populates a uservariable with the current state.

I don't have any lights connected, so haven't checked how well this works.. (The lights are in development..)

Are you running on a raspberry pi? Looks like I have python 2.7 on my Pi and the script is made for 3 right ?

I Changed

Code: Select all

from urllib.request import urlopen
from urllib.parse import urlencode

to and now it works with Python 2.7

Code: Select all

import urllib

[Varazir]

I Changed

Code: Select all

from urllib.request import urlopen
from urllib.parse import urlencode

to and now it works with Python 2.7

Code: Select all

import urllib

Got one more step forward.

I guess I have to do something more as it's not finding the

Code: Select all

Traceback (most recent call last):
  File "chromecast.py", line 10, in <module>
    import pychromecast
ImportError: No module named pychromecast

I cloned the git and run the pip requirement installer step.

[daandamhuis]

Did you place the Python script inside the Pychromecast folder? That did the trick for me.

[Varazir]

Did you place the Python script inside the Pychromecast folder? That did the trick for me.

I got it to work sort of:

Code: Select all

~/pychromecast $ python chromecast.py
mediaListener
<MediaStatus {'player_state': u'PLAYING', 'volume_level': 1, 'images': [], 'media_custom_data': {}, 'duration': 2546, 'current_time': 841.182, 'playback_rate': 1, 'title': None, 'media_session_id': 1, 'volume_muted': False, 'supports_skip_forward': False, 'track': None, 'season': None, 'idle_reason': None, 'stream_type': u'BUFFERED', 'supports_stream_mute': False, 'supports_stream_volume': False, 'content_type': u'video/mp4', 'metadata_type': None, 'subtitle_tracks': {}, 'album_name': None, 'series_title': None, 'album_artist': None, 'media_metadata': {}, 'episode': None, 'artist': None, 'supported_media_commands': 1, 'supports_seek': False, 'content_id': u'http://dummy', 'supports_skip_backward': False, 'supports_pause': True}>

But nothing happens on my domoticz

I changed this in the script

Code: Select all

domoticz = "http://localhost:80"
    
domurl="http://localhost:80"
device=33

Anything ells I need to change?

Edit: I saw that the script is maxing out the CPU

[tbowmo]

I'm not here on this forum that often..

Anyway, it's a work in progress. Running on a pi2, so don't notice that one core is maxed out by the script. But yes dome kind of wait loop should be made instead of the current while loop, so it doesn't use max cpu.

And yes I'm using it with python3. I have both python 2.7 and 3.4 installed.

[Heisenberg]

I installed pychromecast but cannot seem to find the folder. Do I really need to put the python script inside this folder to run?

[turnhob]

Im trying to get this working.
But i am keeping getting this error

Code: Select all

Traceback (most recent call last):
  File "D:\Domoticz\Scripts\PyChromecast\ChromeStatus.py", line 49, in <module>
    cast.media_controller.register_status_listener(listener)
AttributeError: 'NoneType' object has no attribute 'media_controller'

Im not a python programmer. I can read code but im not good at wrtiting.
So if you could give me a hint that would be very helpfull

(using raspberry pi2 and python 2).