Chromecast bindings

jbperrin88 · November 6, 2016, 12:18pm

Hi there,

First of all , thanks to all developper and contributer for this nice project.

Recently, I have observed a new bindings in openhab2.

One that allows to control a Chromecast.

Unfortunately I do not see it in the list of paper IU.

Can you tell me how to install it ?

thank you !

Kai · November 6, 2016, 6:23pm

It is part of the latest snapshot distro:

Note that it currently is rather in a beta state and has a few issues. It would be great to find someone interested to further improve this binding (I’m myself am lacking the time to dive deeper into it).

dominicdesu · November 23, 2016, 8:59pm

Is it possible to play YouTube videos via the chromecast binding? I tried sending the URL to the playuri channel but that didn’t work…

Adam_E · December 27, 2016, 2:22am

hi there, I was also just recently trying to play with the chromecast binding. volume worked fine, however I tried to send a command to the playuri control, I get the following error. Wondering if anyone knows what might be wrong?

[ERROR] [chromecast.handler.ChromecastHandler] - Missing media player app - cannot process media

error is coming from here:

github.com

openhab/openhab2-addons/blob/master/addons/binding/org.openhab.binding.chromecast/src/main/java/org/openhab/binding/chromecast/handler/ChromecastHandler.java#L304


/**
* Copyright (c) 2010-2018 by the respective copyright holders.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.openhab.binding.chromecast.handler;


import org.apache.commons.lang.StringUtils;
import org.eclipse.smarthome.core.audio.AudioFormat;
import org.eclipse.smarthome.core.audio.AudioHTTPServer;
import org.eclipse.smarthome.core.audio.AudioSink;
import org.eclipse.smarthome.core.audio.AudioStream;
import org.eclipse.smarthome.core.audio.UnsupportedAudioFormatException;
import org.eclipse.smarthome.core.audio.UnsupportedAudioStreamException;
import org.eclipse.smarthome.core.library.types.PercentType;
import org.eclipse.smarthome.core.thing.ChannelUID;
import org.eclipse.smarthome.core.thing.Thing;
import org.eclipse.smarthome.core.thing.ThingStatus;
import org.eclipse.smarthome.core.thing.ThingStatusDetail;
import org.eclipse.smarthome.core.thing.binding.BaseThingHandler;
import org.eclipse.smarthome.core.types.Command;
import org.eclipse.smarthome.core.types.State;
import org.openhab.binding.chromecast.internal.ChromecastAudioSink;
import org.openhab.binding.chromecast.internal.ChromecastCommander;
import org.openhab.binding.chromecast.internal.ChromecastEventReceiver;
import org.openhab.binding.chromecast.internal.ChromecastScheduler;
import org.openhab.binding.chromecast.internal.ChromecastStatusUpdater;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import su.litvak.chromecast.api.v2.ChromeCast;


import java.io.IOException;
import java.math.BigDecimal;
import java.util.HashSet;
import java.util.Locale;
import java.util.Set;


import static org.openhab.binding.chromecast.ChromecastBindingConstants.HOST;
import static org.openhab.binding.chromecast.ChromecastBindingConstants.PORT;
import static org.openhab.binding.chromecast.ChromecastBindingConstants.REFRESH_RATE_SECONDS;


/**
* The {@link ChromecastHandler} is responsible for handling commands, which are
* sent to one of the channels. It furthermore implements {@link AudioSink} support.
*
* @author Markus Rathgeb - Original author
* @author Kai Kreuzer - Initial contribution as openHAB add-on
* @author Daniel Walters - Online status fix, handle playuri channel and refactor play media code
* @author Jason Holmes - Media Status. Refactor the monolith into separate classes.
*/
public class ChromecastHandler extends BaseThingHandler implements AudioSink {
   private static final HashSet<AudioFormat> SUPPORTED_FORMATS = new HashSet<>();
   private static final HashSet<Class<? extends AudioStream>> SUPPORTED_STREAMS = new HashSet<>();


   static {
       SUPPORTED_FORMATS.add(AudioFormat.MP3);
       SUPPORTED_FORMATS.add(AudioFormat.WAV);


       SUPPORTED_STREAMS.add(AudioStream.class);
   }


   private final Logger logger = LoggerFactory.getLogger(getClass());
   private final AudioHTTPServer audioHTTPServer;
   private final String callbackUrl;


   /**
    * The actual implementation. A new one is created each time #initalize is called.
    */
   private Coordinator coordinator;


   /**
    * Constructor.
    *
    * @param thing           the thing the coordinator should be created for
    * @param audioHTTPServer server for hosting audio streams
    * @param callbackUrl     url to be used to tell the Chromecast which host to call for audio urls
    */
   public ChromecastHandler(final Thing thing, AudioHTTPServer audioHTTPServer, String callbackUrl) {
       super(thing);
       this.audioHTTPServer = audioHTTPServer;
       this.callbackUrl = callbackUrl;
   }


   @Override
   public void initialize() {
       final Object ipAddress = getConfig().get(HOST);
       if (!(ipAddress instanceof String)) {
           updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.OFFLINE.CONFIGURATION_ERROR,
                   "Cannot connect to Chromecast. IP address is invalid.");
           return;
       }


       final String host = (String) ipAddress;
       if (StringUtils.isBlank(host)) {
           updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.OFFLINE.CONFIGURATION_ERROR,
                   "Cannot connect to Chromecast. IP address is not set.");
           return;
       }


       final Object portNumber = getConfig().get(PORT);
       logger.debug("portNumber Type is {}", portNumber.getClass().getTypeName());
       final int port;
       if (portNumber instanceof BigDecimal) {
           port = ((BigDecimal) portNumber).intValue();
       } else if (portNumber instanceof Integer) {
           port = (Integer) portNumber;
       } else {
           port = 8009;
       }


       final Integer refreshRate;
       final Object rawRefreshRate = getConfig().get(REFRESH_RATE_SECONDS);
       if (rawRefreshRate instanceof BigDecimal) {
           refreshRate = ((BigDecimal) rawRefreshRate).intValue();
       } else if (rawRefreshRate instanceof Integer) {
           refreshRate = (Integer) rawRefreshRate;
       } else {
           refreshRate = 10;
       }


       if (coordinator != null && (!coordinator.chromeCast.getAddress().equals(host) || (coordinator.chromeCast.getPort() != port))) {
           coordinator.destroy();
           coordinator = null;
       }


       if (coordinator == null) {
           ChromeCast chromecast = new ChromeCast(host, port);
           coordinator = new Coordinator(this, thing, chromecast, refreshRate, audioHTTPServer, callbackUrl);
           coordinator.initialize();
       }
   }


   @Override
   public void dispose() {
       if (coordinator != null) {
           coordinator.destroy();
           coordinator = null;
       }
   }


   @Override
   public void handleCommand(final ChannelUID channelUID, final Command command) {
       if (coordinator != null) {
           coordinator.commander.handleCommand(channelUID, command);
       } else {
           logger.info("Cannot handle command. No coordinator was initialized");
       }
   }


   @Override  // Just exposing this for ChromecastStatusUpdater.
   public void updateState(String channelID, State state) {
       super.updateState(channelID, state);
   }


   @Override // Just exposing this for ChromecastStatusUpdater.
   public void updateStatus(ThingStatus status, ThingStatusDetail statusDetail, String description) {
       super.updateStatus(status, statusDetail, description);
   }


   @Override // Just exposing this for ChromecastStatusUpdater.
   public boolean isLinked(String channelId) {
       return super.isLinked(channelId);
   }


   @Override
   public String getId() {
       return thing.getUID().toString();
   }


   @Override
   public String getLabel(Locale locale) {
       return thing.getLabel();
   }


   @Override
   public Set<AudioFormat> getSupportedFormats() {
       return SUPPORTED_FORMATS;
   }


   @Override public Set<Class<? extends AudioStream>> getSupportedStreams() {
       return SUPPORTED_STREAMS;
   }


   @Override
   public void process(AudioStream audioStream)
       throws UnsupportedAudioFormatException, UnsupportedAudioStreamException {
       if (coordinator != null) {
           coordinator.audioSink.process(audioStream);
       } else {
           logger.info("Cannot process audioStream. No coordinator has been initialized.");
       }
   }


   @Override
   public PercentType getVolume() throws IOException {
       if (coordinator != null) {
           return coordinator.statusUpdater.getVolume();
       } else {
           logger.info("Cannot get volume. No coordinator has been initialized.");
           return PercentType.ZERO;
       }
   }


   @Override
   public void setVolume(PercentType percentType) throws IOException {
       if (coordinator != null) {
           coordinator.commander.handleVolume(percentType);
       } else {
           logger.info("Cannot set volume. No coordinator has been initialized.");
       }
   }


   private static class Coordinator {
       private static final int CONNECT_DELAY = 10;
       private final Logger logger = LoggerFactory.getLogger(Coordinator.class);


       private final ChromeCast chromeCast;
       private final ChromecastAudioSink audioSink;
       private final ChromecastCommander commander;
       private final ChromecastEventReceiver eventReceiver;
       private final ChromecastStatusUpdater statusUpdater;
       private final ChromecastScheduler scheduler;


       private final Runnable connectRunnable = this::connect;
       private final Runnable refreshRunnable = new Runnable() {
           @Override
           public void run() {
               commander.handleRefresh();
           }
       };


       private Coordinator(ChromecastHandler handler, Thing thing, ChromeCast chromeCast, int refreshRate, AudioHTTPServer audioHttpServer, String callbackURL) {
           this.chromeCast = chromeCast;


           this.scheduler = new ChromecastScheduler(handler.scheduler, CONNECT_DELAY, connectRunnable, refreshRate, refreshRunnable);
           this.statusUpdater = new ChromecastStatusUpdater(thing, handler);


           this.commander = new ChromecastCommander(chromeCast, scheduler, statusUpdater);
           this.eventReceiver = new ChromecastEventReceiver(scheduler, statusUpdater);
           this.audioSink = new ChromecastAudioSink(commander, audioHttpServer, callbackURL);
       }


       void initialize() {
           chromeCast.registerListener(eventReceiver);
           chromeCast.registerConnectionListener(eventReceiver);


           this.connect();
       }


       void destroy() {
           chromeCast.unregisterConnectionListener(eventReceiver);
           chromeCast.unregisterListener(eventReceiver);


           try {
               scheduler.destroy();
               chromeCast.disconnect();
           } catch (final IOException ex) {
               logger.debug("Disconnect failed: {}", ex.getMessage());
           }
       }


       private void connect() {
           try {
               chromeCast.connect();
               statusUpdater.updateStatus(ThingStatus.ONLINE);
           } catch (final Exception e) {
               statusUpdater.updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.OFFLINE.COMMUNICATION_ERROR, e.getMessage());
               scheduler.scheduleConnect();
           }
       }
   }
}

This file has been truncated. show original

looks like it requires the CC1AD845 media player or something. Just wondering if anyone has seen this before and knows how to fix?

thanks.

Kai · December 27, 2016, 8:57am

Is it a Google Chromecast device or some 3rd party chromecast-enabled receiver? I’ve never seen this message with my Chromecasts.

Adam_E · December 28, 2016, 3:15am

mine are LG speakers (HiFi/MusicFlow) with built in chromecast. I am able to cast to them fine using things like stream2chromecast

I think i’ll just create an exec based item to start/stop the streams for now, but would be nice to get the built in chromecast binding working. As mentioned, volume controls work fine, just not the playuri.

I was trying to do something similar to below in one of my rules. I just want a switch which will enable playing my favorite radio stream. Works fine from stream2chromecast

sendCommand(chromecast_playuri, "http://.....)

If anyone has any ideas, would love to know.

nallerz · December 28, 2016, 7:14am

I have a similar interest in using a switch to select from several youtube URL’s. I tried both regular and embed-type youtube URL’s without success using the Karaf command:

 smarthome:send Chromecast https://www.youtube.com/watch?v=...

However, I was able to get the chromecast (standard HDMI dongle v2) to play web-based mp4 files using the following command in Karaf:

smarthome:send Chromecast http://techslides.com/demos/sample-videos/small.mp4

Looking forward to figuring this one out

veetrik · February 19, 2017, 7:42pm

I was able to use the following code to cast the video on OpenHAB2 with the chromecast binding:

Items
Player CastLRTV_Control { channel= “chromecast:chromecast:2aaa81d166fd34024d9ae49a2ebdaaaa:control”}

String CastLRTV_URI { channel=“chromecast:chromecast:2aaa81d166fd34024d9ae49a2ebdaaaa:playuri”}

Switch Play_Switch

Sitemap:
Switch item=Play_Switch mappings=[ON=Play]

Rule:

rule "Play Switch Rule" when Item Play_Switch received update then CastLRTV_URI.sendCommand( "http://techslides.com/demos/sample-videos/small.mp4") CastLRTV_Control.sendCommand(PLAY) end

joefrank251 · February 26, 2017, 1:56pm

@veetrik Are you using the Chromecast binding from the PaperUI? I don’t see the “playuri” channel in Paper (only volume and control are there), so I’m wondering if that is my problem. I can get chromecast to play voice commands using “say,” so I’m close!

Lolodomo · February 26, 2017, 3:38pm

Look at advanced channels.

joefrank251 · February 26, 2017, 6:02pm

Thanks @Lolodomo - didn’t see it there!

@nallerz did you ever figure out how to stream a youtube video? The mp4 works nicely, but other formats would be great!

veetrik · February 27, 2017, 1:31am

Yes I am using the Chromecast binding in the PaperUI in a windows 10 system. I see the playuri when I select show more:

nallerz · February 27, 2017, 2:59am

Unfortunately this one took a back burner and I have not gotten around to figuring it out. If I find a solution I will be sure to post it… I know there are some very knowledgeable folks on here; maybe they will chime in if the issue is getting some traction. Good luck in the meantime…

veetrik · February 27, 2017, 3:04am

Yes I am using the Chromecast binding in the PaperUI in a windows 10 system. You need to click on the ‘see more’ button when looking at the channel items.

joefrank251 · March 4, 2017, 2:03pm

So I’m up and running with the binding. I can cast audio to a Google Home and video to a smart TV, but I’m getting an error when trying to broadcast to an a Chromecast Audio. It looks like it should be supported. Has anyone ever run into this issue?

ChromecastAudio1PlayURI.sendCommand("https://allthingsaudio.wikispaces.com/file/view/Bzoark.mp3/139196327/Bzoark.mp3")
ChromecastAudio1.sendCommand(PLAY)

2017-03-04 08:55:48.472 [ItemStateChangedEvent     ] - ChromecastAudio1PlayURI changed from NULL to https://allthingsaudio.wikispaces.com/file/view/Bzoark.mp3/139196327/Bzoark.mp3
2017-03-04 08:55:48.632 [ItemCommandEvent          ] - Item 'ChromecastAudio1' received command PLAY
2017-03-04 08:55:48.632 [hingStatusInfoChangedEvent] - 'chromecast:audio:46bcd962cee988d794c539084d2a6f51' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR): No application is running in ChromeCast

It almost looks like I’m hitting the error at line 240 of https://github.com/vitalidze/chromecast-java-api-v2/blob/master/src/main/java/su/litvak/chromecast/api/v2/ChromeCast.java, but I have no idea what could be causing this. I can’t find any other references to it anywhere.

Thanks in advance!

mackemot · March 19, 2017, 2:41pm

Hi I’, having problem with my HDMI chromecast I would like to play a file hosted on my http server (local) fileslocated and works with squeezelite bute would be fun to make it work even with chromecast.

Items
Dimmer Volume { channel=“chromecast:chromecast:ffbe7ccc:volume” }
Player Music { channel=“chromecast:chromecast:ffbe7ccc:control” }
String CCplayuri { channel=“chromecast:chromecast:ffbe7ccc:playuri”}

Rule
rule “kitchen_door”

    when
                    Item gDO_kokknapp changed from OFF to ON
                            then
                                    if (gDO_bells.state==ON){
                                                                 CCplayuri.sendCommand("http://192.168.0.4:65535/doorbell.mp3")
                                    Music.sendCommand(PLAY)

but no soiund is played any ideas are wlecomed.

joefrank251 · March 23, 2017, 1:31pm

Are you also using a Chromecast Audio device? Maybe it’s an issue specific to Audio? Mine works on regular chromecasts, but I can’t get the Chromecast audio to work.

mackemot · March 24, 2017, 12:33pm

No I’m using normal chromecast for tv, I even tried to set up volume control bute thats doesn’t work either. I added my CC device manually since it didn’t show in inbox.

mackemot · March 24, 2017, 12:48pm

And today I’vegot my livingroom chromecast discoverd in inbox added that one and linked my channels to that one and things where going better now i can control volume from openhab but havn’t really got the playuri string to work properly anyone whos got an idea of how to make it.

danielwalters86 · March 24, 2017, 6:49pm

In theory you send a URI to that channel and your Chromecast will play it. But Chromecasts can only play certain file types, what are you sending it?