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MRAD Communications on MAS

Article ID: 189
Last updated: 05 Jan, 2017
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Posted: 20 Dec, 2016
by Simon J.
Updated: 05 Jan, 2017
by Simon J.

MRAD Communications on MAS

Overview

When a Mirage Media Streamer (MMS) and a Mirage Amplifier or Mirage Amplifiers are paired together, they become a Mirage Audio System (MAS). As with MMS control, the API is fairly simple. We strongly recommend using XML mode for all list browsing. With this API, you can control a MAS's Zones, Sources, and Zone Groups.

In all examples, --> indicates a messages to the server and <-- indicates a response.

Establishing a Connection

In most scenarios, MRAD communication is done through port 5006 on the server over a TCP socket. We recommend setting a number of options and settings to improve the experience and to configure the communications between your client and the server.

On A series servers, you have to switch protocol modes using the * command and this command should be the first command you send. However, this command is safe to send to e series servers with no ill effect.

The SetClientType command takes an arbitrary string argument that sets the connection's type. This allows the MMS to react to different client types if necessary.

As described elsewhere, you'll want all lists to be sent as XML, so send the SetXmlMode Lists command.

You can also set the encoding of the communications. Most control systems are UTF-8 compatible, so we recommend sending SetEncoding 65001.

To be sure the MMS knows which address you accessed it through, be sure to use the SetHost command, sending the address you connected to. For example: SetHost 192.168.0.53 or SetHost foo.homeowner.com

To be sure the MMS notifies you of any status changes during your connection's lifetime, be sure to use some form of SubscribeEvents. This command is described below in the Events section.

To be sure you have the current state of the server, be sure to send GetStatus. This command is also described below in the Events section.

We recommend requesting Sources, Zones, and Zone Groups upon your initial connection by sending BrowseSources, BrowseZones, and BrowseZoneGroups. These commands are described below in the Browsing Zones, Sources, and Zone Groups section.

A full preamble example:



--> *
--> SetClientType DemoClient
--> SetEncoding 65001
--> SetXMLMode Lists
--> SetHost 192.168.0.53
--> SubscribeEvents Smart
--> GetStatus
--> BrowseSources
--> BrowseZones
--> BrowseZoneGroups

The Relationship Between 5004 and 5006

When connected to an instance on port 5004, events will be published that will instruct the control client where to go for MRAD. These events are MRADServer and MRADSource. MRADServer tells the client the IP and port to connect to for MRAD control. MRADSource tells the client which source in MRAD represents the current MMS instance. On port 5006, events (described in detail below in the Events section) MCSControl, MCSInstance, and MCSWebPort describe the inverse relationship.

Single Socket Communications

On all modern MMS firmware (5.35.x.x and higher), it is possible to make a single connection to the MMS control port (5004) and use that socket for both MMS control and MRAD control. To utilize this functionality, make your connection normally, then send SetOption Supports_SingleSocket=True. Subsequently, the MMS will proxy commands and feedback to and from MRAD. Any commands sent that are prepended with MRAD. will be handled by MRAD and any events MRAD sends will be prepended with MRAD.. Browse responses will not be prepended as they are unique to MRAD and therefore can not be confused as MMS responses.

Definition of Terms

Zone: a physical output on the amplifier, after the matrix. A zone selects sources. There are some special cases where a zone is pre-matrix output and can't be grouped with other zones.

Source: an output of the MMS. This can be one physical output, many physical outputs, and/or a network stream (eAudioCast). A source is selected into a zone or zones.

Zone Group: a set of zones that have the same source selected. There are two types of zone groups, hard groups and soft groups.

Hard Group: a set of zones that are grouped on the amplifier for at least their selected source and optionally power and volume.

Soft Group: a set of zones that are grouped by virtue of having the same source selected. A soft group can contain a hard group or hard groups.

Events

As with MMS control, MRAD control offers an event driven and asynchronous communications protocol. Events about the currently selected zone and source are pushed to the control client if configured to do so. Data about other zones is also pushed, but more information is available for the currently selected zone. To request that events be pushed to you, use the SubscribeEvents command. This command takes 1 to n comma delimited arguments. If you pass true or false, event subscription will be enabled or disabled for all events. If you pass a comma delimited list of named events, you'll be subscribed to those events only. For example, if you only care about volume and power events, you could do SubscribeEvents Power,Volume. It's important to note that the the list of events does not have spaces in it. Events will always be sent in one of these two formats:

  • StateChanged <EventSource> <EventName>=<EventValue>
  • ReportState <EventSource> <EventName>=<EventValue>

If you're communicating to the MRAD system through an MMS connection and the Single Socket option, all events will be prepended with MRAD. (as described above) like so:

MRAD.StateChanged <EventSource> <EventName>=<EventValue>

Examples of both formats:

  • ReportState Zone_1 Volume=3 or StateChanged Zone_1 Volume=3
  • MRAD.ReportState Zone_1 Volume=3 or MRAD.StateChanged Zone_1 Volume=3

To request a full status report, use GetStatus command (MRAD.GetStatus in Single Socket mode). The response will simply be a set of events pushed to you all at once.

It's important to keep track of these System events:

  • ActiveSource: which source is does the ActiveZone have selected.
  • ActiveZone: which zone is currently selected by this control client.

It's important to keep track of these Zone events. Events are available for every zone unless otherwise noted.

  • MaxVolume: the maximum volume for the ActiveZone. This event is only available for the ActiveZone.
  • MinVolume: the minimum volume for the ActiveZone. This event is only available for the ActiveZone.
  • Mute: True if the zone indicated by the event is muted, False otherwise.
  • PowerOn: True if the zone indicated by the event is powered on, False otherwise.
  • SourceId: an integer value indicating which source is selected by ActiveZone. This event is only available for the ActiveZone.
  • Volume
  • ZoneGroupId: the guid of the ZoneGroup that contains ActiveZone. This event is only available for the ActiveZone.
  • ZoneGuid: the guid of ActiveZone itself. This event is only available for the ActiveZone.
  • ZoneId: the integer id of ActiveZone itself. This corresponds to the numbered output on the physical amplifier. This event is only available for the ActiveZone.
  • ZoneName: the string name of ActiveZone itself. This corresponds to the output on the physical amplifier. This event is only available for the ActiveZone.

It's important to keep track of these Source events. These events are only available for the ActiveSource:

  • MCSControl: this event tells you the IP and port to connect to in order to control the MMS instance that corresponds to this MRAD source, if one exists. For example, 192.168.0.53:5004. Not relevant if using single socket mode.
  • MCSInstance: this event tells you what to set as the MMS instance in order to control the MMS instance that corresponds to this MRAD source, if one exists.
  • MCSWebPort: this events tells what IP and port to use as the host for any HTTP requests to MMS.
  • NuVoSmartSource: True if the source is an MMS instance, False otherwise.
  • SourceGuid: the guid of the Source itself.
  • SourceId: the integer id of ActiveSource itself. On A series servers, this corresponds to the physical input on the amp that is selected. On e series servers, this value has a more complex meaning. If the MMS instance is wired physically to an input on the Mirage Amplifier, this event's value has the same meaning as on A series servers. Otherwise, the source ID indicates both which source on the amplifier and which eSeries device, ordinally positioned in the System, the source resides on.

Browsing Zones, Sources, and Zone Groups

MRAD browse commands function similarly to MMS browse commands. BrowseZones, BrowseSources, and BrowseZoneGroups all take either 0 or 2 arguments. However, given the relatively low number of items in any one response, it's safe to request all items by making an argument-less request. Always use SetXmlMode Lists if your environment supports XML processing as the responses will carry far more information. As with MMS browse commands, limit the response to a subset of items by specifying start and count. For example, BrowseZones 1 2. All XML responses are sent as one single line of data. We've formatted them here for readability.

Zones

BrowseZones returns the list of zones available to the MMS. If all zones have the default names, all zones will be listed. If any zone has a non-default name, then zones with non-default names will be listed. On e series, there is an additional command to see all zones regardless of name: BrowseAllZones. It functions identically to BrowseZones except that it always returns all zones.



--> BrowseZones
<--
<Zones total="4" start="1" more="false" art="false" alpha="false" displayAs="List">    
    <Zone guid="00010000-a259-4cda-a715-94915436337e" name="Oficina" dna="name" button="0" id="Zone_1" isOn="True" sourceId="7" sourceName="Main" gId="00000000-0007-0000-0000-000000000000" gName="ZG_1" gPwr="0" gVol="0" gSrc="1" sId="7" sGuid="00000007-a259-4cda-a715-94915436337e" m1="Pandora: Tool Radio" m2="Tool" m3="10,000 Days" m4="Right In Two" mArt="http://192.168.0.53:5005/GetArt?instance=alsa_output.pci-0000_00_1b.0.digital-stereo_MultiChannel@root@00-00-00-00-00-00&ticks=636174188433893670&guid=70c762d5-f24c-5b74-dcc1-a68531576204" />
    <Zone guid="00020000-a259-4cda-a715-94915436337e" name="Gimnasio" dna="name" button="0" id="Zone_2" isOn="False" sourceId="0" sourceName="" gId="00000002-0000-0000-0000-000000000000" gName="ZG_2" gPwr="0" gVol="0" gSrc="0" sId="0" sGuid="00000000-0000-0000-0000-000000000000" m1="" m2="" m3="" m4="" mArt="" />
    <Zone guid="00030000-a259-4cda-a715-94915436337e" name="Bar" dna="name" button="0" id="Zone_3" isOn="False" sourceId="0" sourceName="" gId="00000003-0000-0000-0000-000000000000" gName="ZG_3" gPwr="0" gVol="0" gSrc="0" sId="0" sGuid="00000000-0000-0000-0000-000000000000" m1="" m2="" m3="" m4="" mArt="" />
    <Zone guid="00070000-a259-4cda-a715-94915436337e" name="Auriculares" dna="name" button="0" id="Zone_7" isOn="False" sourceId="7" sourceName="Main" gId="00000001-0000-0000-d762-484700000000" gName="ZG_4" gPwr="0" gVol="0" gSrc="1" sId="7" sGuid="00000007-a259-4cda-a715-94915436337e" m1="Pandora: Tool Radio" m2="Tool" m3="10,000 Days" m4="Right In Two" mArt="http://192.168.0.53:5005/GetArt?instance=alsa_output.pci-0000_00_1b.0.digital-stereo_MultiChannel@root@00-00-00-00-00-00&ticks=636174188433893670&guid=70c762d5-f24c-5b74-dcc1-a68531576204" />
</Zones>

Sources

BrowseSources returns the list of sources available to the currently selected zone. If all sources have the default names, all sources will be listed. If any source has a non-default name, then sources with non-default names will be listed. On e series, there is an additional command to see all sources regardless of name: BrowseAllSources. It functions identically to BrowseSources except that it always returns all sources.



--> BrowseSources
<--
<Sources total="8" start="1" more="false" art="false" alpha="false" displayAs="List">
    <Source guid="00000001-a259-4cda-a715-94915436337e" name="WIN B" dna="name" button="0" smart="0" nnet="0" znCount="0" znList="" sId="1" sGuid="00000001-a259-4cda-a715-94915436337e" m1="" m2="" m3="" m4="" mArt="" />
    <Source guid="00000002-a259-4cda-a715-94915436337e" name="Player A" dna="name" button="0" smart="1" nnet="0" znCount="0" znList="" sId="2" sGuid="00000002-a259-4cda-a715-94915436337e" m1="" m2="" m3="" m4="" mArt="" />
    <Source guid="00000003-a259-4cda-a715-94915436337e" name="Player B" dna="name" button="0" smart="1" nnet="0" znCount="0" znList="" sId="3" sGuid="00000003-a259-4cda-a715-94915436337e" m1="" m2="" m3="" m4="" mArt="" />
    <Source guid="00000004-a259-4cda-a715-94915436337e" name="1e" dna="name" button="0" smart="0" nnet="0" znCount="0" znList="" sId="4" sGuid="00000004-a259-4cda-a715-94915436337e" m1="" m2="" m3="" m4="" mArt="" />
    <Source guid="00000005-a259-4cda-a715-94915436337e" name="AUX" dna="name" button="0" smart="0" nnet="0" znCount="0" znList="" sId="5" sGuid="00000005-a259-4cda-a715-94915436337e" m1="" m2="" m3="" m4="" mArt="" />
    <Source guid="00000006-a259-4cda-a715-94915436337e" name="AUX 2" dna="name" button="0" smart="0" nnet="0" znCount="0" znList="" sId="6" sGuid="00000006-a259-4cda-a715-94915436337e" m1="" m2="" m3="" m4="" mArt="" />
    <Source guid="00000007-a259-4cda-a715-94915436337e" name="Main" dna="name" button="0" smart="1" nnet="0" znCount="2" znList="Oficina,Auriculares" sId="7" sGuid="00000007-a259-4cda-a715-94915436337e" m1="Pandora: Tool Radio" m2="Rage Against The Machine" m3="The Battle Of Los Angeles (Explicit)" m4="Calm Like A Bomb" mArt="http://192.168.0.53:5005/GetArt?instance=alsa_output.pci-0000_00_1b.0.digital-stereo_MultiChannel@root@00-00-00-00-00-00&ticks=636174193843003290&guid=70c762d5-f24c-5b74-dcc1-a68531576204" /><Source guid="00000008-a259-4cda-a715-94915436337e" name="WIN MAIN" dna="name" button="0" smart="0" nnet="0" znCount="0" znList="" sId="8" sGuid="00000008-a259-4cda-a715-94915436337e" m1="" m2="" m3="" m4="" mArt="" />
</Sources>

Zone Groups

BrowseZonesGroups returns the list of zone groups (adhering to the definition above) on the MMS. Once browsed once an active connection, it is not necessary to ask again. Any changes to this list will be pushed to you as they occur. If the connection closes for any reason, re-requesting this list once will reinitiate that process. You'll notice that this response has a few extra attributes in the root node.

  • srceAvail: 0 if no unused MMS source is available, 1 if an unused MMS source is available
  • srceId: the guid of the available MMS source, if available.
  • srceMmsAddr: the IP and port of the MMS the source resides.
  • srceMmsInst: a unique name for the MMS instance that the source represents.


--> BrowseZoneGroups
<--
<ZoneGroups total="4" start="1" more="false" art="false" alpha="false" displayAs="List" srceAvail="1" srceId="00000003-a259-4cda-a715-94915436337e" srceMmsAddr="192.168.0.53:5004" srceMmsInst="analog-stereo-b_MultiChannel@root@00-00-00-00-00-00">
    <ZoneGroup guid="00000000-0007-0000-0000-000000000000" name="ZG_1" dna="name" button="0" sId="7" sGuid="00000007-a259-4cda-a715-94915436337e" m1="Pandora: Tool Radio" m2="A Perfect Circle" m3="Mer De Noms" m4="Magdalena" mArt="http://192.168.0.53:5005/GetArt?instance=alsa_output.pci-0000_00_1b.0.digital-stereo_MultiChannel@root@00-00-00-00-00-00&ticks=636174196793581930&guid=70c762d5-f24c-5b74-dcc1-a68531576204">
        <vol>
            <zone eventId="Zone_1" guid="00010000-a259-4cda-a715-94915436337e" name="Oficina" dna="name" icon="0" />
        </vol>
        <src>
            <zone eventId="Zone_1" guid="00010000-a259-4cda-a715-94915436337e" name="Oficina" dna="name" icon="0" />
        </src>
    </ZoneGroup>
    <ZoneGroup guid="00000001-0000-0000-d762-484700000000" name="ZG_4" dna="name" button="0">
        <vol>
            <zone eventId="Zone_7" guid="00070000-a259-4cda-a715-94915436337e" name="Auriculares" dna="name" icon="0" />
        </vol>
        <src>
            <zone eventId="Zone_7" guid="00070000-a259-4cda-a715-94915436337e" name="Auriculares" dna="name" icon="0" />
        </src>
    </ZoneGroup>
    <ZoneGroup guid="00000002-0000-0000-0000-000000000000" name="ZG_2" dna="name" button="0">
        <vol>
            <zone eventId="Zone_2" guid="00020000-a259-4cda-a715-94915436337e" name="Gimnasio" dna="name" icon="0" />
        </vol>
        <src>
            <zone eventId="Zone_2" guid="00020000-a259-4cda-a715-94915436337e" name="Gimnasio" dna="name" icon="0" />
        </src>
    </ZoneGroup>
    <ZoneGroup guid="00000003-0000-0000-0000-000000000000" name="ZG_3" dna="name" button="0">
        <vol>
            <zone eventId="Zone_3" guid="00030000-a259-4cda-a715-94915436337e" name="Bar" dna="name" icon="0" />
        </vol>
        <src>
            <zone eventId="Zone_3" guid="00030000-a259-4cda-a715-94915436337e" name="Bar" dna="name" icon="0" />
        </src>
    </ZoneGroup>
</ZoneGroups>

Setting Current Zone and Source

Setting Current Zone

To set your connection's current zone, use the SetZone command. This command takes a single argument. This argument can be the Id or Guid or Name of the target zone. After setting your zone, it's recommended that you do a GetStatus to ensure you have the latest information regarding that zone.

For example:



--> SetZone 3
--> GetStatus

Setting Current Source

To set your current zone's source, use the SetSource command. This command takes a single argument but the valid options for that argument are different on A series and e series. On A series, this command takes the Id or Guid or Name of a source. On e series, this command takes the Guid of a source only. After setting your source, it's recommended that you do a GetStatus to ensure you have the latest information regarding that source.

For example:



--> SetSource 00000007-a259-4cda-a715-94915436337e
--> GetStatus

Setting Zone Volume and Mute

To set the volume of your currently selected zone, send Volume <vol> where <vol> is an integer between MinVolume and MaxVolume. To set the volume of another zone, use the same command, appending the target zone's Id, Guid, or Name.

For example:



--> Volume 24

OR



--> Volume 24 00030000-a259-4cda-a715-94915436337e

To do a volume up on your currently selected zone, send VolumeUp. To do a volume up on another zone, use the same command, appending the target zone's Id, Guid, or Name.

For example:



--> VolumeUp

OR



--> VolumeUp 00030000-a259-4cda-a715-94915436337e

To do a volume down on your currently selected zone, send VolumeDown. To do a volume down on another zone, use the same command, appending the target zone's Id, Guid, or Name.

For example:



--> VolumeDown

OR



--> VolumeDown 00030000-a259-4cda-a715-94915436337e

To set the mute state on your currently selected zone, send Mute <state> where <state> is true, or false, or toggle. To set the mute state of another zone, use the same command, appending the target zone's Id, Guid, or Name.

For example:



--> Mute Toggle

OR



--> Mute Toggle 00030000-a259-4cda-a715-94915436337e

Working with Zone Groups

Building or modifying Zone Groups

As described above, a Zone Group is a set of zones that have the same Source selected. There are several ways to configure a zone group. The simplest way to to simply set more than one zone to the same source. However, there is a SetZoneGroup command that takes a comma delimited list of zones, among other things. This command has a few different formats for arguments, taking either 2 or 3 arguments.

If constructing a new zone group, you'll need to specify a source by GUID. In this case, the command will take three arguments: SetZoneGroup guidOfFirstZoneInGroup memberZone1,memberZone2,memberZoneN sourceGuid. The source guid is the srceId value from the root node of the BrowseZoneGroups response or push.

For example:



--> SetZoneGroup 00020000-a259-4cda-a715-94915436337e 00020000-a259-4cda-a715-94915436337e,00030000-a259-4cda-a715-94915436337e 00000007-a259-4cda-a715-94915436337e

If modifying an existing zone group, use 2 arguments instead, where the first argument is the guid of the zone group itself and the second argument is the new list of zones it should contain.

For example:



--> SetZoneGroup 00000000-0007-0000-0000-000000000000 00010000-a259-4cda-a715-94915436337e,00020000-a259-4cda-a715-94915436337e

Setting Zone Group Volume and Mute

Setting zone group volume and mute state functions identically to doing so for an individual zone except that the zone group's Guid is substituted for the second argument in the command.

For example:



--> VolumeUp 00000000-0007-0000-0000-000000000000
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KB0164 Using the MMS in Low Bandwidth/High Latency Environments     KB0175 Mirage Media Server control protocol