com.webos.service.mediacontroller

API Summary

Provides features to handle the AVRCP events regardless of application type (web app/native app) in order to remotely control the playback and handles key events such as play, pause, next, previous, mute and unmute.

Overview of the API

Provides methods to manage media sessions and get metadata/playback status of the media and routes the AVRCP events received from the remote device to corresponding media client.

Methods

registerMediaSession

Description

Registers media sessions, subscribes to receive AVRCP key events.

Recommended usage: The API is recommended to be used by the application.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId of the session to be registered.
appId	Required	String	Indicates the appId of the session to be registered.
subscribe	Required	Boolean	Indicates if subscribe to get notifications. Possible values are: true: Subscribed for notifications. false: Not subscribed.

Name

Required

Type

Description

mediaId

Required

String

Indicates the mediaId of the session to be registered.

appId

Required

String

Indicates the appId of the session to be registered.

Required

Boolean

Indicates if subscribe to get notifications.

Possible values are:

true: Subscribed for notifications.
false: Not subscribed.

Call Returns

Name	Required	Type	Description
returnValue	Required	Boolean	Indicates the status of operation. Possible values are: true: Indicates that the operation was successful. false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.
subscribed	Required	Boolean	Indicates if subscribed to get notifications. Possible values are: true: Subscribed for notifications. false: Not subscribed. Note: subscribed will always contain true since subscription ends only when the client chooses to close it.
keyEvent	Optional	String	Indicates the key event that is operated. Possible values are: play pause next previous mute unmute
mediaId	Optional	String	Indicates the mediaId of the registered session.
errorCode	Optional	Boolean	The error code for the failed operation.
errorText	Optional	String	Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Subscription Returns

Name	Required	Type	Description
returnValue	Required	Boolean	Indicates the status of the operation. Possible values are: true: Indicates that the operation was successful. false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.
subscribed	Required	Boolean	Indicates if subscribed to get notifications. Possible values are: true: Subscribed for notifications. false: Not subscribed. Note: subscribed will always contain true since subscription ends only when the client chooses to close it.
keyEvent	Required	String	Indicates the key event that is operated. Possible values are: play pause next previous mute unmute
mediaId	Required	String	Indicates the mediaId for which the key events are posted.
errorCode	Optional	Number	The error code for the failed operation.
errorText	Optional	String	Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See API Error Codes Reference	See the API Error Codes Reference section.

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/registerMediaSession '{
"mediaId":"xDFNUI",
"appId":"com.webos.app.test.youtube",
"subscribe":true
}'

Response:

{
"subscribed":true,
"returnValue":true
}

activateMediaSession

Description

Activates the media session.

Recommended usage: The API is recommended to be used by the application.

Note:

Only an active media session can receive the AVRCP key events and forward them to the application.
To activate a media session, the client must subscribe to the mediaId using registerMediaSession() API.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId of the session to be activated.

Call Returns

Name

Required

Type

Description

returnValue

Required

Boolean

Indicates the status of the operation.

Possible values are:

true: Indicates that the operation was successful.
false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.

errorCode

Optional

Number

The error code for the failed operation.

errorText

Optional

String

Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See the "API Error Codes Reference" section.	See the API Error Codes Reference section.

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/activateMediaSession '{
"mediaId":"xDFNUI"
}'

Response:

{
"returnValue":true
}

deactivateMediaSession

Description

Deactivates the media session.

Recommended usage: The API is recommended to be used by the application.

Note: After the media session is deactivated, the corresponding media client cannot receive AVRCP key events.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId of the session to be deactivated.

Call Returns

Name	Required	Type	Description
returnValue	Required	String	Indicates the status of the operation. Possible values are: true: Indicates that the operation was successful. false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.
errorCode	Optional	Number	The error code for the failed operation.
errorText	Optional	String	Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Name

Required

Type

Description

returnValue

Required

String

Indicates the status of the operation.

Possible values are:

true: Indicates that the operation was successful.
false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.

errorCode

Optional

Number

The error code for the failed operation.

errorText

Optional

String

Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See the "API Error Codes Reference" section.	See the API Error Codes Reference section.

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/deactivateMediaSession '{
"mediaId":"xDFNUI"
}'

Response:

{
"returnValue":true
}

unregisterMediaSession

Description

Unsubscribes and unregisters the media session.

Recommended usage: The API is recommended to be used by the application.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId of the session to be unregistered.

Call Returns

Name

Required

Type

Description

returnValue

Required

Boolean

Indicates the status of the operation.

Possible values are:

true: Indicates that the operation was successful.
false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.

errorCode

Optional

Number

The error code for the failed operation.

errorText

Optional

String

Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See the "API Error Codes Reference" section.	See the API Error Codes Reference section.

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/unregisterMediaSession '{
"mediaId":"xDFNUI"
}'

Response:

{
"returnValue":true
}

getMediaMetaData

Description

Requests metadata of the media session related to the given mediaId.

Recommended usage: The API is recommended to be used by the service.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId for meta data information.

Call Returns

Name	Required	Type	Description
returnValue	Required	Boolean	Indicates the status of the operation. Possible values are: true: Indicates that the operation was successful. false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.
metaData	Optional	Object: mediaMetaData	Indicates details of the object mediaMetaData.
errorCode	Optional	Number	The error code for the failed operation.
errorText	Optional	String	Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See the "API Error Codes Reference" section.	See the API Error Codes Reference section.

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/getMediaMetaData '{
"mediaId":"xDFNUI"
}'

Response:

{
"returnValue":true,
"metaData":{
"title":"Big Bang Theory",
"artist":"BIGBANG",
"totalDuration":"20.15",
"album":"BBT",
"genre":"drama",
"trackNumber":2
}
}

getMediaPlayStatus

Description

Gets the current playback status of the given mediaId, status such as stopped, paused, playing, buffering.

Recommended usage: The API is recommended to be used by the service.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId of the session registered.

Call Returns

Name	Required	Type	Description
returnValue	Required	Boolean	Indicates the status of the operation. Possible values are: true: Indicates that the operation was successful. false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.
playStatus	Optional	String	Indicates the current play status of the media. Possible values are: PLAYSTATE_NONE PLAYSTATE_STOPPED PLAYSTATE_PAUSED PLAYSTATE_PLAYING PLAYSTATE_FAST_FORWARDING PLAYSTATE_REWINDING PLAYSTATE_BUFFERING PLAYSTATE_ERROR
errorCode	Optional	Number	The error code for the failed operation.
errorText	Optional	String	Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See the "API Error Codes Reference" section.	See the API Error Codes Reference section.

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/getMediaPlayStatus '{
"mediaId":"xDFNUI"
}'

Response:

{
"returnValue":true,
"playStatus":"PLAYSTATE_PLAYING"
}

getMediaSessionInfo

Description

Gets the details of a media session like app id, metadata, volume info.

Recommended usage: The API is recommended to be used by the service.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId for the session registered.

Call Returns

Name	Required	Type	Description
returnValue	Required	Boolean	Indicates the status of the operation. Possible values are: true: Indicates that the operation was successful. false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.
sessionInfo	Optional	Object: mediaSession	Indicates media session information details.
errorCode	Optional	Number	The error code for the failed operation.
errorText	Optional	String	Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See the "API Error Codes Reference" section.	See the API Error Codes Reference section.

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/getMediaSessionInfo '{
"mediaId":"xDFNUI"
}'

Response:

{
"returnValue":true,
"sessionInfo":{
"mediaId":"xDFNUI",
"appId":"com.webos.test.youtube",
"metaData":{
"title":"Big Bang Theory",
"artist":"BIGBANG",
"totalDuration":"20.15",
"album":"BBT",
"genre":"drama",
"trackNumber":2
},
"volume":100
}
}

getMediaSessionId

Description

Provides the list of mediaId of all the media sessions for a given app.

Recommended usage: The API is recommended to be used by the service.

Parameters

Name	Required	Type	Description
appId	Required	String	Indicates the appId for the given media session.

Call Returns

Name	Required	Type	Description
returnValue	Required	Boolean	Indicates the status of the operation. Possible values are: true: Indicates that the operation was successful. false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.
mediaId	Optional	String array	Indicates the list of all mediaId for the appId received.
errorCode	Optional	Number	The error code for the failed operation.
errorText	Optional	String	Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See the "API Error Codes Reference" section.	See the API Error Codes Reference section.

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/getMediaSessionId '{
"appId":"com.webos.test,youtube"
}'

Response:

{
"returnValue":true,
"mediaId":[
"XCFRHKH",
"NBFSIEOL"
]
}

getActiveMediaSessions

Description

Gets the list of all the active media sessions.

Recommended usage: The API is recommended to be used by the service.

Parameters

None

Call Returns

Name	Required	Type	Description
returnValue	Required	Boolean	Indicates the status of the operation. Possible values are: true: Indicates that the operation was successful. false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.
sessionList	Optional	String array	Indicates the list of all active sessions registered with service.
errorCode	Optional	Number	The error code for the failed operation.
errorText	Optional	String	Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See the "API Error Codes Reference" section.	See the API Error Codes Reference section.

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/getActiveMediaSessions '{}'

Response:

{
"returnValue":true,
"sessionList":[
"XCFRHKH",
"NBFSIEOL"
]
}

setMediaMetaData

Description

Sets the metadata information for the session.

Example: title, artist.

Recommended usage: The API is recommended to be used by the application.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId of the session to set metadata.
mediaMetaData	Required	Object: mediaMetaData	Indicates the meta data details for the session.

Call Returns

Name

Required

Type

Description

returnValue

Required

Boolean

Indicates the status of the operation.

Possible values are:

true: Indicates that the operation was successful.
false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.

errorCode

Optional

Number

The error code for the failed operation

errorText

Optional

String

Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See the API Error Codes Reference section	See the API Error Codes Reference section

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/setMediaMetaData '{
"mediaId":"xDFNUI",
"mediaMetaData":{
"title":"BigBangTheory",
"artist":"BigBang",
"totalDuration":"10.10",
"album":"BBT",
"genre":"drama",
"trackNumber":2,
"volume":100
}
}'

Response:

{
"returnValue":true
}

setMediaPlayStatus

Description

Sets the playStatus for the session.

Example: play, pause, stopped and so on.

Recommended usage: The API is recommended to be used by the application.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId of the session to set playStatus.
playStatus	Required	String	Indicates the current playStatus of the media. Possible values are: PLAYSTATE_NONE PLAYSTATE_STOPPED PLAYSTATE_PAUSED PLAYSTATE_PLAYING PLAYSTATE_FAST_FORWARDING PLAYSTATE_REWINDING PLAYSTATE_BUFFERING PLAYSTATE_ERROR

Name

Required

Type

Description

mediaId

Required

String

Indicates the mediaId of the session to set playStatus.

playStatus

Required

String

Indicates the current playStatus of the media.

Possible values are:

PLAYSTATE_NONE
PLAYSTATE_STOPPED
PLAYSTATE_PAUSED
PLAYSTATE_PLAYING
PLAYSTATE_FAST_FORWARDING
PLAYSTATE_REWINDING
PLAYSTATE_BUFFERING
PLAYSTATE_ERROR

Call Returns

Name

Required

Type

Description

returnValue

Required

Boolean

Indicates the status of the operation.

Possible values are:

true: Indicates that the operation was successful.
false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.

errorCode

Optional

Number

The error code for the failed operation

errorText

Optional

String

Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4	See the API Error Codes Reference section.	See the API Error Codes Reference section

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/setMediaPlayStatus '{
"mediaId":"xQWERTY_0",
"playStatus":"PLAYSTATE_PLAYING"
}'

Response:

{
"returnValue":true
}

setMediaMuteStatus

Description

Sets the status of the media session.

Recommended usage: The API is recommended to be used by the application.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId of the session required to set the muteStatus.
muteStatus	Required	String	Indicates the status of the media session. Possible values are: mute unmute

Name

Required

Type

Description

mediaId

Required

String

Indicates the mediaId of the session required to set the muteStatus.

muteStatus

Required

String

Indicates the status of the media session.

Possible values are:

mute
unmute

Call Returns

Name

Required

Type

Description

returnValue

Required

Boolean

Indicates the status of the operation.

Possible values are:

true: Indicates that the operation was successful.
false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.

errorCode

Optional

Number

The error code for the failed operation

errorText

Optional

String

Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4, 7	See the API Error Codes Reference section	See the API Error Codes Reference section.

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/setMediaMuteStatus '{
"mediaId":"xDFNUI",
"muteStatus":"mute"
}'

Response:

{
"returnValue":true
}

setMediaPlayPosition

Description

Sets the play position for the media session.

Recommended usage: The API is recommended to be used by the application.

Parameters

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId of the session.
playPosition	Required	String	Indicates the current play position of the media session.

Call Returns

Name

Required

Type

Description

returnValue

Required

Boolean

Indicates the status of the operation.

Possible values are:

true: Indicates that the operation was successful.
false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.

errorCode

Optional

Number

The error code for the failed operation

errorText

Optional

String

Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4, 7	See the API Error Codes Reference sectio	See the API Error Codes Reference section

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/setMediaPlayPosition '{
"mediaId":"xDFNUI",
"playPosition":"10.10"
}'

Response:

{
"returnValue":true

}

injectMediaKeyEvent

Description

Sets the keyEvent of the given displayId.

Recommended usage: The API is recommended to be used by the service.

Parameters

Name	Required	Type	Description
displayId	Required	Number	Indicates the displayId for which the key event is sent Possible values are: 0 1
keyEvent	Required	String	Indicates the keyEvent for the display. Possible values are: play pause mute unmute next previous

Name

Required

Type

Description

displayId

Required

Number

Indicates the displayId for which the key event is sent

Possible values are:

keyEvent

Required

String

Indicates the keyEvent for the display.

Possible values are:

play
pause
mute
unmute
next
previous

Call Returns

Name

Required

Type

Description

returnValue

Required

Boolean

Indicates the status of the operation.

Possible values are:

true: Indicates that the operation was successful.
false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.

errorCode

Optional

Number

The error code for the failed operation

errorText

Optional

String

Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4, 7	See the API Error Codes Reference section.	See the API Error Codes Reference section

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/injectMediaKeyEvent '{
"displayId":1,
"keyEvent":"play"
}'

Response:

{
"returnValue":true
}

receiveMediaPlaybackInfo

Description

Subscribes to receive the play status, mute status, play position, mediaMetaData information.

Recommended usage: The API is recommended to be used by the service.

Parameters

Name	Required	Type	Description
displayId	Required	Number	Indicates the displayId for which the media play status is required. Possible values are: 0 1
eventType	Optional	String	Indicates the status for the required subscription response. Possible values are : playStatus muteStatus playPosition mediaMetaData Note: If not set, eventType will send all the possible values as the response.
subscribe	Required	Boolean	Indicates if subscribed to get notifications. Possible values are: true: Subscribed for notifications false: Not subscribed

Name

Required

Type

Description

displayId

Required

Number

Indicates the displayId for which the media play status is required.

Possible values are:

eventType

Optional

String

Indicates the status for the required subscription response.

Possible values are :

playStatus
muteStatus
playPosition
mediaMetaData

Note: If not set, eventType will send all the possible values as the response.

Required

Boolean

Indicates if subscribed to get notifications.

Possible values are:

true: Subscribed for notifications
false: Not subscribed

Call Returns

Name	Required	Type	Description
returnValue	Required	Boolean	Indicates the status of the operation. Possible values are: true: Indicates that the operation was successful. false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.
subscribed	Optional	Boolean	Indicates if subscribed to get notifications. Possible values are: true: Subscribed for notifications false: Not subscribed
displayId	Optional	Number	Indicates the displayId for the required media play status. Possible values are: 0 1
eventType	Optional	String	Indicates the status for the required subscription response. Possible values are : playStatus muteStatus playPosition mediaMetaData Note: If not set, eventType will send all the possible values as the response.
playStatus	Optional	String	Indicates the current play status of the media. Possible values are: PLAYSTATE_NONE PLAYSTATE_STOPPED PLAYSTATE_PAUSED PLAYSTATE_PLAYING PLAYSTATE_FAST_FORWARDING PLAYSTATE_REWINDING PLAYSTATE_BUFFERING PLAYSTATE_ERROR Note: The information will be sent if the eventType is playStatus.
muteStatus	Optional	String	Indicates the current status of the media. Possible values are: mute unmute Note: The information will be sent if the eventType is muteStatus.
playPosition	Optional	String	Indicates the current play position of the media. Note: The information will be sent if the eventType is playPosition.
mediaMetaData	Optional	Object: mediaMetaData	Indicates the metadata information for the playback. Note: The information will be sent if the eventType is mediaMetaData.
errorCode	Optional	Number	The error code for the failed operation.
errorText	Optional	String	Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Subscription Returns

Name	Required	Type	Description
returnValue	Required	Boolean	Indicates the status of the operation. Possible values are: true: Indicates that the operation was successful. false: Indicates that the operation failed. Check the "errorCode" and "errorText" fields for details.
subscribed	Optional	Boolean	Indicates if subscribed to get notifications. Possible values are: true: Subscribed for notifications false: Not subscribed
displayId	Optional	Number	Indicates the displayId for the required media play status. Possible values are: 0 1
eventType	Optional	String	Indicates the status for the required subscription response. Possible values are : playStatus muteStatus playPosition mediaMetaData Note: If not set, eventType will send all the possible values as the response.
playStatus	Optional	String	Indicates the current play status of the media. Possible values are: PLAYSTATE_NONE PLAYSTATE_STOPPED PLAYSTATE_PAUSED PLAYSTATE_PLAYING PLAYSTATE_FAST_FORWARDING PLAYSTATE_REWINDING PLAYSTATE_BUFFERING PLAYSTATE_ERROR Note: The information will be sent if eventType is playStatus.
muteStatus	Optional	String	Indicates the current status of the media. Possible values are: mute unmute Note: The information will be sent if the eventType is muteStatus
playPosition	Optional	String	Indicates the current play position of the media playback. Note: The information will be sent if the eventType is playPosition.
mediaMetaData	Optional	Object: mediaMetaData	Indicates the metadata information for the playback. Note: The information will be sent if the eventType is mediaMetaData.
errorCode	Optional	Number	The error code for the failed operation
errorText	Optional	String	Indicates the reason for the failure of the operation. See the "Error Codes" section of this method for details.

Error Codes Reference

Error Code	Error Text	Error Description
0, 1, 2, 3, 4, 6, 7	See the API Error Codes Reference section	See the API Error Codes Reference section

Example

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/receiveMediaPlaybackInfo '{
"displayId":0,
"subscribe":true
}'

Response:

{
   "returnValue":true,
   "displayId":0,
   "playStatus":"PLAYSTATE_PLAYING",
   "muteStatus":"unmute",
   "playPosition":"10.10",
   "metaData":{
      "title":"Big Bang Theory",
      "artist":"BIGBANG",
      "totalDuration":"20.15",
      "album":"BBT",
      "genre":"drama",
      "trackNumber":2
   }
}

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/receiveMediaPlaybackInfo '{
   "displayId":0,
   "eventType":"playStatus",
   "subscribe":true
}'

Response:

{
   "returnValue":true,
   "displayId":0,
   "eventType":"playStatus",
   "playStatus":"PLAYSTATE_PLAYING"
}

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/receiveMediaPlaybackInfo '{
   "displayId":0,
   "eventType":"muteStatus",
   "subscribe":true
}'

Response:

{
   "returnValue":true,
   "displayId":0,
   "eventType":"muteStatus",
   "muteStatus":"unmute"
}

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/receiveMediaPlaybackInfo '{
   "displayId":0,
   "eventType":"playPosition",
   "subscribe":true
}'

Response:

{
  "returnValue":true,
  "displayId":0,
  "eventType":"playPosition",
  "playPosition":"10.10"
}

# luna-send -n 1 -f luna://com.webos.service.mediacontroller/receiveMediaPlaybackInfo '{
   "displayId":0,
   "eventType":"mediaMetaData",
   "subscribe":true
}'

Response:

{
  "returnValue":true,
  "displayId":0,
  "eventType":"mediaMetaData",
  "metaData":{
      "title":"Big Bang Theory",
      "artist":"BIGBANG",
      "totalDuration":"20.15",
      "album":"BBT",
      "genre":"drama",
      "trackNumber":2
   }
}

Objects

mediaSession

Contains the details about mediaId, appId, and metaData.

Name	Required	Type	Description
mediaId	Required	String	Indicates the mediaId to be registered.
appId	Required	String	Indicates the corresponding appId of the mediaId.
metaData	Required	Object: mediaMetaData	Indicates the details of metaData such as title, artist, total duration, album, genre, and track number.

mediaMetaData

Contains the mediaMetaData information.

Name	Required	Type	Description
title	Optional	String	Indicates the title of the media.
artist	Optional	String	Indicates information about the artist.
totalDuration	Optional	String	Indicates the total duration of the media.
album	Optional	String	Indicates details about the album.
genre	Optional	String	Indicates details about the genre.
trackNumber	Optional	Number	Indicates the track number.
volume	Optional	Number	Indicates the current volume level of the session.

API Error Codes Reference

Error Code	Error Text	Error Description
0	Invalid mediaId	Indicates that the mediaId received is invalid.
1	MediaId registration failed	Indicates the failure of mediaId registration.
2	Parsing Error	Indicates parsing of data has failed.
3	Invalid appId	Indicates that the appId does not match the mediaId.
4	No active session	Indicates that no session is active.
5	Media Session already registered	Indicates that session is already registered
6	Media Session already active	Indicates that session is already activated
7	Media Session already decativated	Indicates that session is already deactivated