com.webos.service.audio
API Summary
Controls the audio policy of a webOS system. Implements audio routing (sending audio streams to the proper destinations) and setting volumes in different scenarios.
Its functionality is categorized into the following modules:
- Master: Controls the master volume of audio output devices.
- UMI: Handles connections and manages volume for audio resources, when playing audio from applications like YouTube.
- System: Controls audio policy for DTMF (touch tones), alarm, calendar, and effects.
- Media: Controls audio policy for media playback.
- Ringtone: Controls audio policy for ringtones.
- Alert: Controls audio policy for alerts.
In addition, there is a soundSettings category, to manage sound settings such as setting the output device for the audio.
Note: [ Applicable for Master, UMI, and SoundSettings ] The audio service calls the audiooutput service to communicate with the audio hardware layer.
Overview of the API
NA
Methods
media/broadcastEvent
Description
Announce an event to audiod.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| event | Required | String | The event to be passed to audiod by the application. It can be simple string agreed between audiod and application. For example, if audiod requires an event when call is received by caller (i.e., application), it will ask the caller to send an event using this method and the event will be "callreceived". |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 2 | Missing event string parameter. | Mandatory parameter event is missing from input arguments. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/media/broadcastEvent '{"event":"test"}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/media/broadcastEvent '{"event":"test","event2":"test2"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/media/broadcastEvent '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'event' string parameter."
}
media/disableScenario
Description
Disable the specified scenario.
Note: This method is added for future-use. Do not use it to disable any of the scenarios.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | string | Scenario to be disabled. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 2 | Missing ‘scenario’ string parameter. | Mandatory parameter Scenario is missing from input arguments. |
| 3 | Could not disable requested scenario. | Request Scenario is valid. But could not be disabled. |
| 3 | "Invalid 'scenario' string parameter value or file not found. | Request scenario for disabling is not valid scenario. |
Example
luna-send -f -n 1 luna://com.webos.service.audio/media/disableScenario '{"scenario":"media_back_speaker"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Could not disable requested scenario."
}
media/enableScenario
Description
Enable the specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | string | Scenario to be enabled. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 2 | Missing ‘scenario’ string parameter. | Mandatory parameter Scenario is missing from input arguments. |
| 3 | Invalid 'scenario' string parameter value | Request Scenario for enabling is not a valid scenario. |
Example
luna-send -n 1 -f luna://com.webos.service.audio/media/enableScenario '{"scenario":"media_back_speaker"}'
{
"returnValue": true
}
luna-send -n 1 -f luna://com.webos.service.audio/media/enableScenario '{"scenario":"media_back_speakerTest"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'scenario' string parameter value or file not found."
}
luna-send -n 1 -f luna://com.webos.service.audio/media/enableScenario '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'scenario' string parameter."
}
media/getCurrentScenario
Description
Get a current scenario.
Parameters
None
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorText | Optional | String | Indicates the reason for the failure of the operation. |
| scenario | Optional | String | Scenario currently selected. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/media/getCurrentScenario '{}'
{
"scenario": "media_back_speaker",
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/media/getCurrentScenario '{"TEST"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Not a valid json message"
}
media/getLatency
Description
Get the latency for the specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Optional | String | Scenario to get the latency value for. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
| scenario | Optional | String | Current media scenario |
| latency | Optional | Number | Current latency set for media. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 3 | failed to get latency (invalid scenario name?) | Failure to fetch latency may be due to invalid scenario name. |
Example
luna-send -f -n 1 luna://com.webos.service.audio/media/getLatency '{"scenario": "media_back_speaker"}'
{
"scenario": "media_back_speaker",
"returnValue": true,
"latency": 65536
}
luna-send -f -n 1 luna://com.webos.service.audio/media/getLatency '{"scenario": "media_back_speakedddr"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to get latency (invalid scenario name?)"
}
luna-send -f -n 1 luna://com.webos.service.audio/media/getLatency '{"scenarioTest": "media_back_speaker"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
media/getMicGain
Description
Get mic gain of the current or specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Optional | String | Scenario to get the mic gain for. If not specified, currently selected scenatio will be used. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
| mic_gain | Optional | Number | Mic gain [0 -100] of current or specified scenario. |
| scenario | Optional | String | Either the scenario specified in the input of this method or the currently selected scenario. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 3 | failed to get parameter (invalid scenario name?)" | Failed to get the Mic Gain. Check for Scenario Name. |
Example
luna-send -f -n 1 luna://com.webos.service.audio/media/getMicGain '{"scenario": "media_back_speaker"}'
{
"mic_gain": -1,
"scenario": "media_back_speaker",
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/getMicGain '{"scenario": "Test"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to get parameter (invalid scenario name?)"
}
luna-send -f -n 1 luna://com.webos.service.audio/media/getMicGain '{"scenarioTest": "media_back_speaker"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
media/getVolume
Description
Get the volume level of the current or specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Optional | string | Scenario for which to get the volume level. If not specified, the volume is retrieved from currently selected scenario. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. |
| scenario | Optional | String | Scenario from which volume level is obtained. |
| volume | Optional | Number | Current volume [0, 100]. |
Example
luna-send -f -n 1 luna://com.webos.service.audio/media/getVolume '{}'
{
"scenario": "media_back_speaker",
"volume": 45,
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/getVolume '{"scenario":"media_back_speaker"}'
{
"scenario": "media_back_speaker",
"volume": 45,
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/getVolume '{"scenario":"media"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to get parameter (invalid scenario name?)"
}
luna-send -f -n 1 luna://com.webos.service.audio/media/getVolume '{"scenario1":"media"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
media/listScenarios
Description
Get a list of available (enabled/disabled) scenarios.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| enabled | Optional | Boolean |
|
| disabled | Optional | Boolean |
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorText | Optional | String | Indicates the reason for the failure of the operation. |
| scenarios | Optional | String array | An array of scenarios. |
Example
luna-send -n 1 -f luna://com.webos.service.audio/media/listScenarios '{}'
{
"returnValue": true,
"scenarios": [
"media_back_speaker"
]
}
luna-send -n 1 -f luna://com.webos.service.audio/media/listScenarios '{"enabled":false,"disabled":false}'
{
"returnValue": true,
"scenarios": [
]
}
luna-send -n 1 -f luna://com.webos.service.audio/media/listScenarios '{"enabled":false,"disabled":true}'
{
"returnValue": true,
"scenarios": [
]
}
luna-send -n 1 -f luna://com.webos.service.audio/media/listScenarios '{"enabled":true,"disabled":false}'
{
"returnValue": true,
"scenarios": [
"media_back_speaker"
]
}
luna-send -n 1 -f luna://com.webos.service.audio/media/listScenarios '{"enabled":true,"disabled":true}'
{
"returnValue": true,
"scenarios": [
"media_back_speaker"
]
}
luna-send -n 1 -f luna://com.webos.service.audio/media/listScenarios '{"test"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Not a valid json message"
}
luna-send -n 1 -f luna://com.webos.service.audio/media/listScenarios '{"enabledTEST":true,"disabled":true}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
media/offsetMicGain
Description
Offset mic gain of the current or specified scenario, by an absolute value or by a number of ticks.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| offset | Required | Number | If unit is percent, set offset in the range [-100, 100]. If unit is step or not specified, set offset in the range [-20, 20]. |
| scenario | Optional | String | Scenario to apply the offset. If not specified, the offset is applied to the currently selected scenario. |
| unit | Optional | String | This is used to interpret the offset argument. The value will be one of the followings:
The default value of unit is step. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 2 | "Missing 'offset' integer parameter." | Mandatory parameter Offset is missing from input arguments. |
| 3 | "failed to set parameter (invalid scenario name?)" | Failed to set Offset. Check for Validity of Scenario |
| 3 | "Invalid 'offset' integer parameter value or file not found." | Offset parameter value is invalid. Check for offset range. |
Example
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'offset' integer parameter."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":12}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":12, "unit":"step"}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":-20, "unit":"step"}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":-50, "unit":"step"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":50, "unit":"step"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":100, "unit":"percent"}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":-100, "unit":"percent"}
'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":10, "unit":"percent","scenario":"media_back_speaker"}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":110, "unit":"percent"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":-110, "unit":"percent"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetMicGain '{"offset":110, "unit":"percent","scenario":"ringtone_default"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to set parameter (invalid scenario name?)"
}
media/offsetVolume
Description
Offset volume of the current or specified scenario, by an absolute value or by a number of ticks.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| unit | Optional | String | The manner in which to offset the volume. Possible values are:
Default value : step Note: Check offset parameter for further details. |
| offset | Required | Number | The offset by which the volume should be increased or decreased.
|
| scenario | Optional | String | Scenario to apply the offset. If not specified, the offset is applied to the currently selected scenario. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Optional | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 2 | "Missing 'offset' integer parameter." | Mandatory parameter offset is missing from input arguments. |
| 3 | "failed to set parameter (invalid scenario name?)" | Failed to set offset. Check for validity of scenario. |
| 3 | "Invalid 'offset' integer parameter value or file not found." | Offset parameter value is invalid. Check for offset range. |
Example
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetVolume '{"scenario":"media_back_speaker","offset":70,"unit":"percent"}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetVolume '{"scenario":"media_back_speaker","unit":"percent"}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'offset' integer parameter."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetVolume '{"scenario":"media_back_speaker","offset":110,"unit":"percent"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetVolume '{"scenario":"media_back_speaker","offset":-110,"unit":"percent"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetVolume '{"scenario":"media_back_speaker","offset":-100,"unit":"percent"}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetVolume '{"scenario":"media_back_speaker","offset":70,"unit":"percent"}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetVolume '{"scenario":"media_back_speaker","offset":10}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetVolume '{"scenario":"media_back_speaker","offset":10,"unit":"step"}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/offsetVolume '{"scenario":"media_back_speaker","offset":-3,"unit":"step"}'
{
"returnValue": true
}
media/setCurrentScenario
Description
Designate a scenario as a current scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | String | Scenario to set as the current scenario. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 2 | "Missing 'scenario' string parameter." | Mandatory parameter "scenario" is missing from input arguments. |
| 3 | "Could not set current scenario." | Scenario requested could not be set. Check for Validity of Scenario. |
Example
luna-send -n 1 -f luna://com.webos.service.audio/media/setCurrentScenario '{"scenario":"media_back_speaker"}'
{
"returnValue": true
}
luna-send -n 1 -f luna://com.webos.service.audio/media/setCurrentScenario '{"scenario":"media_back_speaker_test"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Could not set current scenario."
}
luna-send -n 1 -f luna://com.webos.service.audio/media/setCurrentScenario '{"scenarido":"media_back_speaker_test"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
luna-send -n 1 -f luna://com.webos.service.audio/media/setCurrentScenario '{"scenario":"media_back_speaker","TEST"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Not a valid json message"
}
media/setLatency
Description
Set the latency for each scenario (media).
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| latency | Required | Number | Set audio playback latency. This parameter will change the audio playback buffer size in pulseaudio. |
| scenario | Optional | String | Scenario for which latency is to be set. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 2 | "Missing 'latency' integer parameter." | Mandatory Parameter Latency has to be specified |
| 3 | "failed to set latency (invalid scenario name?)" | Latency for the scenario could not be set. Check for the validity of scenario |
| 3 | "Invalid 'latency' integer parameter value or file not found." | Latency value is not valid. Latency should be greater than 0 |
Example
luna-send -f -n 1 luna://com.webos.service.audio/media/setLatency '{"latency":10}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/setLatency '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'latency' integer parameter."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/setLatency '{"latency":10, "scenario":"media_back_speaker"}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/setLatency '{"scenario":"media_back_speaker"}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'latency' integer parameter."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/setLatency '{"latency":10, "scenario":"media_back_speaker_test"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to set
}
media/setMicGain
Description
Set mic gain of the current or specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| mic_gain | Required | Number | Set mic_gain in range [0, 100]. |
| scenario | Optional | String | Scenario for which mic gain is to be set. If not specified, the mic gain is set to the currently selected scenario. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 2 | "Missing 'mic_gain' integer parameter." | Mandatory Parameter mic gain has to be specified |
| 3 | "failed to set parameter (invalid scenario name?)" | Mic Gain for the scenario could not be set. Check for the validity of scenario |
| 3 | "Invalid 'mic_gain' integer parameter value or file not found." | Mic Gain value is not valid. It should be between 0 and 100 |
Example
luna-send -f -n 1 luna://com.webos.service.audio/media/setMicGain '{"mic_gain":10}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/setMicGain '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'mic_gain' integer parameter."
}
luna-send -f -n 1 luna://com.webos.service.audio/media/setMicGain '{"mic_gain":10,"scenario":"media_back_speaker"}'
{
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/setMicGain '{"mic_gain":10,"scenario":"media_back_speaker_test"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to set parameter (invalid scenario name?)"
}
luna-send -f -n 1 luna://com.webos.service.audio/media/setMicGain '{"scenario":"media_back_speaker"}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'mic_gain' integer parameter."
}
media/setVolume
Description
Set the volume level of the current or specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| volume | Required | Number | Volume level to be set |
| scenario | Optional | String | Scenario for which the volume is to be set. |
| sessionId | Optional | Number | Denotes the display/session to which the operation is applicable. Possible values are: 0, 1. Note: If not provided, the operation is applied to session 0. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 1 | Not a valid json message | Wrong JSON message format |
| 2 | "Missing 'volume' integer parameter." | Mandatory Parameter Volume has to be specified |
| 3 | "failed to set parameter (invalid scenario name?)" | Volume for the scenario could not be set. Check for the validity of scenario |
| 3 | Invalid 'volume' integer parameter value or file not found. | Volume value is not valid. It should be between 0 and 100. |
Example
# luna-send -f -n 1 luna://com.webos.service.audio/media/setVolume '{"volume":10}'
Response:
{
"returnValue": true
}
For display 1
# luna-send -f -n 1 luna://com.webos.service.audio/media/setVolume '{"volume":50, "sessionId":0}'
Response:
{
"returnValue": true
}
For display 2
# luna-send -f -n 1 luna://com.webos.service.audio/media/setVolume '{"volume":50, "sessionId":1}'
Response:
{
"returnValue": true
}
# luna-send -f -n 1 luna://com.webos.service.audio/media/setVolume '{"volume":10, "scenario":"media_back_speaker"}'
Response:
{
"returnValue": true
}
media/status
Description
Get a current state of audiod.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean | Indicates whether to subscribe for related events.
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| 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 Reference" section of this method for details. |
| subscribed | Optional | Boolean | Indicates if subscribed to get notified when a connection is closed.
|
| mic_gain | Optional | Number | Mic gain [0 -100] of current or specified scenario. |
| ringtoneWithVibration | Optional | Boolean | Vibrates along with Ringtone. |
| scenario | Optional | String | The currently selected scenario. |
| muted | Optional | Boolean | Indicates whether current module is muted. |
| hac | Optional | Boolean | Indicates hac status. Possible values are:
|
| volume | Optional | Number | Current volume [0, 100]. |
| action | Optional | String | Update information. The value will be one of the following:
|
| ringer switch | Optional | Boolean | Ringer switch state. True for on (should ring). |
| slider | Optional | Boolean | Indicates state of the slider.
|
| active | Optional | Boolean | Indicates if current module is actively used. Possible values are:
|
Example
luna-send -f -n 1 luna://com.webos.service.audio/media/status '{"subscribe" : false}'
{
"mic_gain": 10,
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "media_back_speaker",
"muted": false,
"hac": false,
"subscribed": false,
"volume": 10,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/status '{"subscribe" : true}'
{
"mic_gain": 10,
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "media_back_speaker",
"muted": false,
"hac": false,
"subscribed": true,
"volume": 10,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": true
}
luna-send -f -n 1 luna://com.webos.service.audio/media/status '{}'
{
"mic_gain": 10,
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "media_back_speaker",
"muted": false,
"hac": false,
"subscribed": false,
"volume": 10,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": true
}
nav/status
Description
Get a current status of audiod.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean | Indicates whether to subscribe for related events.
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| ringtonewithvibration | Required | Boolean | Vibrates along with Ringtone. |
| scenario | Required | String | The currently selected scenario |
| muted | Required | Boolean |
|
| subscribed | Required | Boolean | Indicates if subscribed to get notified when a connection is closed.
|
| hac | Required | Boolean | Indicates hac status. Possible values are:
|
| volume | Required | Number | current volume |
| action | Required | String | Update information. The value will be one of the following:
|
| ringer switch | Required | Boolean | Ringer switch state. |
| slider | Required | Boolean | Indicates state of the slider.
|
| active | Required | Boolean | Indicates if current module is actively used. Possible values are:
|
Example
luna-send -i -f luna://com.webos.service.audio/nav/status '{"subscribe" : true}'
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "nav_default",
"muted": false,
"subscribed": true,
"hac": false,
"volume": -1,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
luna-send -i -f luna://com.webos.service.audio/nav/status '{}'
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "nav_default",
"muted": false,
"subscribed": false,
"hac": false,
"volume": -1,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
luna-send -i -f luna://com.webos.service.audio/nav/status '{"subscribe" : false}'
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "nav_default",
"muted": false,
"subscribed": false,
"hac": false,
"volume": -1,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
ringtone/getVolume
Description
Get the volume level of the current or specified audio scenario. Subscribe to this method to be notified of the volume changes.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean |
|
| scenario | Optional | String | Scenario for which to get the volume. If not specified, the volume is retrieved from currently selected scenario. |
Subscription Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Optional | Boolean |
|
| action | Required | String | Update information. The value will be one of the followings:
|
| changed | Optional | String array | Array of properies that has been changed. The value will be one of the followings:
|
| scenario | Optional | String array | Array containg scenarios whose volume has been changed. |
| volume | Optional | Number | Current volume [0, 100]. |
| active | Optional | Boolean |
|
| muted | Optional | String |
|
| event | Optional | String | Broadcast event. |
| cause | Optional | String | The reason why volume is changed. The value will be one of the followings:
|
Example
luna-send -f -n 1 luna://com.webos.service.audio/ringtone/getVolume '{}'
{
"scenario": "ringtone_default",
"volume": 50,
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/ringtone/getVolume '{"scenario":"ringtone_default"}'
{
"scenario": "ringtone_default",
"volume": 50,
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/ringtone/getVolume '{"scenario":"TEST"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to get parameter (invalid scenario name?)"
}
luna-send -f -n 1 luna://com.webos.service.audio/ringtone/getVolume '{"scenario":"ringtone_default", "subscribe":true}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
ringtone/lockVolumeKeys
Description
Lock the volume keys which change the volume of a particular category.
Parameters
None
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| Return | Required | Object: CallReturn | Details of the method success/failure. CallReturn object contains returnValue, errorCode, errorText and Id. |
Example
luna-send -n 1 luna://com.webos.service.audio/ringtone/lockVolumeKeys '{}'
{"returnValue":true}
ringtone/offsetVolume
Description
Increment or decrease the volume of the current or specified scenario, in steps or percent. To increment the volume, pass a positive value. To decrease the value, pass a negative value.
Remark
Volume
- Range: [0-100]
- Unit: Percent
In case the unit is percent
New volume = Current volume + (step offset value(%) of maximum_volume_level)
e.g. If current volume = 10, step off set value = 50, maximu_volume_level =100
New volume = 10 + (50% of 100) = 60
In case the unit is step
New volume = Current volume + (step offset value * 11)
e.g. If current volume = 10, step offset value = 6,
New volume = 10 + (6 * 11) = 76
In both cases
- If the calculated value of the volume is higher than the maximum volume level (i.e. 100), the volume is adjusted to the maximum volume level.
e.g. If current volume = 70, offset = 50, unit = percent. Then new volume = 100. - If the calculated value of the volume is a negative value, the volume is adjusted to 0.
e.g. If current volume = 30, offset = -50, unit = percent. Then new volume = 0.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| offset | Required | Number | Offset value to be set to increase or decrease the volume.
|
| scenario | Optional | String | The scenario to apply the volume change to. If not specified, the current scenario gets the volume change. |
| unit | Optional | String | This is used to interpret the offset argument. The value will be one of the followings:
The default value of unit is step. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/offsetVolume '{"scenario":"ringtone_default","offset":10,"unit":"step"}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/offsetVolume '{"scenario":"ringtone_default","offset":15}'
{
"returnValue": true
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/offsetVolume '{"scenario":"ringtone_default","offset":-5}'
{
"returnValue": true
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/offsetVolume '{"scenario":"ringtone_default","offset":-50}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 5:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/offsetVolume '{"scenario":"ringtone_default","offset":50}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 6:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/offsetVolume '{"scenario":"ringtone_default","offset":10,"unit":"percent"}'
{
"returnValue": true
}
Example 7:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/offsetVolume '{"scenario":"ringtone_default","offset":-100,"unit":"percent"}'
{
"returnValue": true
}
Example 8:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/offsetVolume '{"scenario":"ringtone_default","offset":-105,"unit":"percent"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 9:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/offsetVolume '{"scenario":"ringtone_default","offset":105,"unit":"percent"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
ringtone/setMuted
Description
Mute or unmute the master volume.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| muted | Required | Boolean |
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| Return | Required | Object: CallReturn | Details of the method success/failure. CallReturn object contains returnValue, errorCode, errorText and Id. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/setMuted '{"muted":true}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/setMuted '{"muted":false}'
{
"returnValue": true
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/setMuted '{"mutedd":false}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/setMuted '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'muted' boolean parameter."
}
ringtone/setVolume
Description
Set the volume level of the current or specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| volume | Required | Number | Volume level to be set. |
| scenario | Optional | String | Scenario for which the volume level is to be set. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| Return | Required | Object: CallReturn | Details of the method success/failure. CallReturn object contains returnValue, errorCode, errorText and Id. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/setVolume '{"volume":50}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/setVolume '{"volume":10, "scenario":"ringtone_default"}'
{
"returnValue": true
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/setVolume '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'volume' integer parameter."
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/setVolume '{"volume":10, "scenarioa":"ringtone_default"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
ringtone/status
Description
Get the current status of audiod.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean | Subscribe to get notified when the status changes. Possible values are:
Default value: false |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| return | Required | Object: CallReturn | Details of the method success/failure. CallReturn object contains returnValue, errorCode, errorText and Id. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/status '{"subscribe" : true}'
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "ringtone_default",
"muted": false,
"subscribed": true,
"hac": false,
"volume": 10,
"action": "requested",
"ringer switch": false,
"slider": false,
"active": false
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/status '{"subscribe" : false}'
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "ringtone_default",
"muted": false,
"subscribed": false,
"hac": false,
"volume": 10,
"action": "requested",
"ringer switch": false,
"slider": false,
"active": false
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/ringtone/status '{}'
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "ringtone_default",
"muted": false,
"subscribed": false,
"hac": false,
"volume": 24,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
state/pulse/suspend
Description
Get the suspend state of Pulse Audio.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| suspend | Required | Boolean | Indicates whether to suspend all sinks. Possible values are:
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/state/pulse/suspend '{"suspend" : false}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/state/pulse/suspend '{"suspend" : true}'
{
"returnValue": true
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/state/pulse/suspend '{"suspend" : true, "sink":"ptts"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
state/pulse/sinkStatus
Description
List down the status of a pulseaudio sink.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| sink | Optional | String | Name of sink. If not specified, the status of all the sinks are listed. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean |
|
| errorCode | Optional | Number | errorCode contains the error code if the method fails. The method will return errorCode only if it fails. |
| errorText | Optional | String | errorText contains the error text if the method fails. The method will return errorText only if it fails. |
| filter | Optional | Number | Pulse filter status. Note: For webOS Open Source Edition, this parameter is for future use. |
| sink | Optional | String | Name of the sink. |
| destination | Optional | String | Physical destination. |
| volume | Optional | Number | Current volume set for the sink. |
| openStreams | Optional | String | Streams opened for the sink. |
| latency | Optional | Number | Current latency set for sink. Note: For webOS Open Source Edition, this parameter is for future use. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 3 | "Invalid 'sink' string parameter value or file not found." | Invalid 'sink' parameter is provided. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/state/pulse/sinkStatus '{"sink" : "pmedia"}'
{
"filter": 0,
"sink": "pmedia",
"destination": "pcm_output",
"volume": 0,
"openStreams": 0,
"returnValue": true,
"latency": 65536
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/state/pulse/sinkStatus '{"sink" : "ptts"}'
{
"filter": 0,
"sink": "ptts",
"destination": "ptts",
"volume": 0,
"openStreams": 0,
"returnValue": true,
"latency": 65536
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/state/pulse/sinkStatus '{"sink" : "pttssss"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'sink' string parameter value or file not found."
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/state/pulse/sinkStatus '{}'
{
"pdefaultapp": {
"filter": 0,
"sink": "pdefaultapp",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pmedia": {
"filter": 0,
"sink": "pmedia",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pcallertone": {
"filter": 0,
"sink": "pcallertone",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"ptimer": {
"filter": 0,
"sink": "ptimer",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"returnValue": true,
"pndk": {
"filter": 0,
"sink": "pndk",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"palarm": {
"filter": 0,
"sink": "palarm",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pvoip": {
"filter": 0,
"sink": "pvoip",
"volume": -1,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"ptts": {
"filter": 0,
"sink": "ptts",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "ptts"
},
"palerts": {
"filter": 0,
"sink": "palerts",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pvoicerecognition": {
"filter": 0,
"sink": "pvoicerecognition",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pvvm": {
"filter": 0,
"sink": "pvvm",
"volume": -1,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pcalendar": {
"filter": 0,
"sink": "pcalendar",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pnavigation": {
"filter": 0,
"sink": "pnavigation",
"volume": -1,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pringtones": {
"filter": 0,
"sink": "pringtones",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pnetflix": {
"filter": 0,
"sink": "pnetflix",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pflash": {
"filter": 0,
"sink": "pflash",
"volume": -1,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pnotifications": {
"filter": 0,
"sink": "pnotifications",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"peffects": {
"filter": 0,
"sink": "peffects",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pfeedback": {
"filter": 0,
"sink": "pfeedback",
"volume": 80,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pvoicedial": {
"filter": 0,
"sink": "pvoicedial",
"volume": 0,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
},
"pDTMF": {
"filter": 0,
"sink": "pDTMF",
"volume": 80,
"openStreams": 0,
"latency": 65536,
"destination": "pcm_output"
}
}
state/get
Description
Get the state.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| name | Optional | String | Parameter name whose status has to be obtained |
| names | Optional | String array | Array of names for which status has to be obtained |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| forceMicOn | Optional | Boolean | Indicates whether mic is enabled or disabled
|
| adjustMicGain | Optional | Boolean | Indicates whether mic gain can be adjusted
|
| sliderState | Optional | Boolean | Indicates state of the slider
|
| displayOn | Optional | Boolean | Indicates whether display is on or off
|
| headsetState | Optional | String | Indicates whether headset is connected or not
|
| 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 Reference" section of this method for details. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 2 | "no setting found" | Mandatory to specify at least one parameter. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/state/get '{"name" : "all"}'
{
"headsetState": "<None>",
"forceMicOn": false,
"adjustMicGain": false,
"returnValue": true,
"displayOn": false,
"sliderState": false
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/state/get '{"names" : ["forceMicOn"]}'
{
"forceMicOn": false,
"returnValue": true
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/state/get '{"names" : ["forceMicOn", "adjustMicGain"]}'
{
"forceMicOn": false,
"adjustMicGain": false,
"returnValue": true
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/state/get '{"names" : ["forceMicOn", "adjustMicGains"]}'
{
"forceMicOn": false,
"returnValue": true
}
Example 5:
luna-send -n 1 -f luna://com.webos.service.audio/state/get '{"names" : ["forceMicOn_", "adjustMicGains"]}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "no setting found"
}
Example 6:
luna-send -n 1 -f luna://com.webos.service.audio/state/get '{"nameT" : "all"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
Example 7:
luna-send -n 1 -f luna://com.webos.service.audio/state/get '{"name" : "all_"}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "no setting found"
}
Example 8:
luna-send -n 1 -f luna://com.webos.service.audio/state/get '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "no setting found"
}
state/getPreference
Description
Gets the value of the preferences.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| name | Optional | String | Name of the preference. |
| names | Optional | String array | Array of preferences. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| VibrateWhenRingerOn | Optional | Boolean | Indicates whether the device can vibrate when the ringer switch is ON. Possible values are:
|
| VibrateWhenRingerOff | Optional | Boolean | Indicates whether the device can vibrate when the ringer switch is OFF. Possible values are:
|
| VoiceCommandSupportWhenSecureLocked | Optional | String | Indicates whether voice command is supported when the device is locked. Possible values are:
|
| TextEntryCorrectionHapticPolicy | Optional | String | Indicates whether system sounds should be played along with haptic feedback. Possible values are:
|
| BeatsOnForHeadphones | Optional | Boolean | Indicates whether beats for headphones is enabled or disabled. Possible values are:
|
| BeatsOnForSpeakers | Optional | Boolean | Indicates whether beats for speaker is enabled or disabled. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/state/getPreference '{"name" : "VibrateWhenRingerOn"}'
Response:
{
"VibrateWhenRingerOn": false,
"returnValue": true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/state/getPreference '{"names" : ["RingerOn", "VibrateWhenRingerOn", "BeatsOnForHeadphones"]}'
Response:
{
"VibrateWhenRingerOn": false,
"RingerOn": true,
"returnValue": true,
"BeatsOnForHeadphones": true
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/state/getPreference '{"name" : "all"}'
Response:
{
"errorCode": 2,
"returnValue": false,
"errorText": "no setting found"
}
state/set
Description
Setter for state.
Remark
- At least more than one parameter should be passed. Otherwise, the method will fail.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| adjustMicGain | Optional | Boolean | Indicates whether mic gain can be adjusted
At least one or both of adjustMicGain and forceMicOn must be passed. |
| forceMicOn | Optional | Boolean | Indicates whether mic can be enabled or disabled
At least one or both of adjustMicGain and forceMicOn must be passed. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean |
|
| errorCode | Optional | Number | errorCode contains the error code if the method fails. The method will return errorCode only if it fails |
| errorText | Optional | String | errorText contains the error text if the method fails. The method will return errorText only if it fails |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/state/set '{"adjustMicGain" : true}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/state/set '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "no setting to change found"
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/state/set '{"adjustMicGain" : true, "forceMicOn":false}'
{
"returnValue": true
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/state/get '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "no setting found"
}
system/getVolume
Description
Get the volume level of the current or specified audio scenario. Subscribe to this method to be notified of the volume changes.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean |
|
| scenario | Optional | String | Scenario for which to get the volume. If not specified, the volume is retrieved from currently selected scenario. |
Subscription Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean |
|
| action | Required | String | Update information. The value will be one of the followings:
|
| changed | Optional | String array | Array of properies that has been changed. Values will be one of the followings:
|
| scenario | Optional | String array | Array of scenarios for the changed event, one for each of changed |
| volume | Optional | Number | Current volume [0, 100] |
| active | Optional | Boolean |
|
| muted | Optional | String |
|
| event | Optional | String | Broadcast event |
| cause | Optional | String | In case of volume change, indicates cause of change. The value will be one of the followings:
|
Example
luna-send -n 1 -f luna://com.webos.service.audio/system/getVolume '{}'
{
"scenario": "system_default",
"volume": 80,
"returnValue": true
}
luna-send -n 1 -f luna://com.webos.service.audio/system/getVolume '{"scenario":"system_default"}'
{
"scenario": "system_default",
"volume": 80,
"returnValue": true
}
luna-send -n 1 -f luna://com.webos.service.audio/system/getVolume '{"scenario":"system_defaults"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to get parameter (invalid scenario name?)"
}
luna-send -n 1 -f luna://com.webos.service.audio/system/getVolume '{"scenarioT":"system_defaults"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
system/offsetVolume
Description
Increase or decrease the volume of the current or specified scenario, in steps or percent. To increment the volume, pass a positive value. To decrease the value, pass a negative value.
Remark
Volume
- Range: [0-100]
- Unit: Percent
In case the unit is percent
New volume = Current volume + (step offset value(%) of maximum_volume_level)
e.g. If current volume = 10, step off set value = 50, maximu_volume_level =100
New volume = 10 + (50% of 100) = 60
In case the unit is step
New volume = Current volume + (step offset value * 11)
e.g. If current volume = 10, step offset value = 6,
New volume = 10 + (6 * 11) = 76
In both cases
- If the calculated value of the volume is higher than the maximum volume level (i.e. 100), the volume is adjusted to the maximum volume level.
e.g. If current volume = 70, offset = 50, unit = percent. Then new volume = 100. - If the calculated value of the volume is a negative value, the volume is adjusted to 0.
e.g. If current volume = 30, offset = -50, unit = percent. Then new volume = 0.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| offset | Required | Number | Offset value to be set to increase or decrease the volume.
|
| scenario | Optional | String | The scenario to apply the volume change to. If not specified, the current scenario gets the volume change. |
| unit | Optional | String | This is used to interpret the offset argument. The value will be one of the followings:
The default value of unit is "step". |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Optional | Boolean |
|
| errorCode | Optional | Number | errorCode contains the error code if the method fails. The method will return errorCode only if it fails. |
| errorText | Optional | String | errorText contains the error text if the method fails. The method will return errorText only if it fails. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/system/offsetVolume '{"scenario":"system_default","offset":10}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/system/offsetVolume '{"scenario":"system_default","offset":15,"unit":"percent"}'
{
"returnValue": true
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/system/offsetVolume '{"scenario":"system_default","offset":-15,"unit":"percent"}'
{
"returnValue": true
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/system/offsetVolume '{"scenario":"system_default","offset":-150,"unit":"percent"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 5:
luna-send -n 1 -f luna://com.webos.service.audio/system/offsetVolume '{"scenario":"system_default","offset":150,"unit":"percent"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 6:
luna-send -n 1 -f luna://com.webos.service.audio/system/offsetVolume '{"scenario":"system_default","offset":15,"unit":"step"}'
{
"returnValue": true
}
Example 7:
luna-send -n 1 -f luna://com.webos.service.audio/system/offsetVolume '{"scenario":"system_default","offset":-15,"unit":"step"}'
{
"returnValue": true
}
Example 8:
luna-send -n 1 -f luna://com.webos.service.audio/system/offsetVolume '{"scenario":"system_default","offset":-25,"unit":"step"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 9:
luna-send -n 1 -f luna://com.webos.service.audio/system/offsetVolume '{"scenario":"system_default","offset":25,"unit":"step"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 10:
luna-send -n 1 -f luna://com.webos.service.audio/system/offsetVolume '{"scenarioTEST":"system_default","offset":25,"unit":"step"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
system/setMuted
Description
Mute or unmute the master volume.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| muted | Required | Boolean |
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| Return | Required | Object: CallReturn | Details of the method success/failure. CallReturn object contains returnValue, errorCode, errorText and Id. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/system/setMuted '{"muted":true}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/system/setMuted '{"muted":false}'
{
"returnValue": true
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/system/setMuted '{"mutedd":false}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/system/setMuted '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'muted' boolean parameter."
}
system/setVolume
Description
Set the volume level of the current or specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| volume | Required | Number | Volume level to be set. |
| scenario | Optional | String | Scenario for which the volume level is to be set. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| Return | Required | Object: CallReturn | Details of the method success/failure. CallReturn object contains returnValue, errorCode, errorText and Id. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/system/setVolume '{"volume":65}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/system/setVolume '{"volume":65, "scenario":"system"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to set parameter (invalid scenario name?)"
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/system/setVolume '{"volume":65, "scenario":"system_scenario"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to set parameter (invalid scenario name?)"
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/system/setVolume '{"volume":65, "scenario":"system_default"}'
{
"returnValue": true
}
Example 5:
luna-send -n 1 -f luna://com.webos.service.audio/system/setVolume '{"volume":65, "scenarioT":"system_default"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
system/status
Description
Get the current status of audiod.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean | Indicates whether to subscribe for related events.
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| return | Required | Object: CallReturn | Details of the method success/failure. CallReturn object contains returnValue, errorCode, errorText and Id. |
Example
Example 1:luna-send -n 1 -f luna://com.webos.service.audio/system/status '{}'
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "system_default",
"muted": false,
"subscribed": false,
"hac": false,
"volume": 65,
"action": "requested",
"ringer switch": false,
"slider": false,
"active": false
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/system/status '{"subscribe" : true}'
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "system_default",
"muted": false,
"subscribed": true,
"hac": false,
"volume": 65,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/system/status '{"subscribe" : false}'
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "system_default",
"muted": false,
"subscribed": false,
"hac": false,
"volume": 65,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
systemsounds/playFeedback
Description
Plays various system alert sounds based on the name passed to it.Parameters
Name | Required | Type | Description |
|---|---|---|---|
| name | Optional | String | Name of the system sound. |
| sink | Optional | String | Sink to use to play sound (default: pfeedback). |
| play | Optional | Boolean |
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean |
|
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/systemsounds/playFeedback '{"name": "voicestart", "sink":"pfeedback", "play":true}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/systemsounds/playFeedback '{"name": "voicestart", "sink":"pfeedback", "play":false}'
{
"returnValue": true
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/systemsounds/playFeedback '{"name": "voicestart", "play":false}'
{
"returnValue": true
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/systemsounds/playFeedback '{"name": "voicestart"}'
{
"returnValue": true
}
Example 5:
luna-send -n 1 -f luna://com.webos.service.audio/systemsounds/playFeedback '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'name' string parameter."
}
Example 6:
luna-send -n 1 -f luna://com.webos.service.audio/systemsounds/playFeedback '{"namex": "voicestart"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
Example 7:
luna-send -n 1 -f luna://com.webos.service.audio/systemsounds/playFeedback '{"name": "shutter"}'
{
"returnValue": true
}
Example 8:
luna-send -n 1 -f luna://com.webos.service.audio/systemsounds/playFeedback '{"name": "shutter_test"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'name' string parameter value or file not found."
}
udev/event
Description
Gives audioD information regarding the USB Mic/Headset Connected/Disconnected events based on the udev rules.
It also provides the sound card number and device number information.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| event | Required | String | The event to be passed to audiod by the udev rule when USB soundcard is detected.It is a simple string defined by audiod. |
| soundcard_no | Optional | Number | sound card number as of now is being extracted from the device path where USB sound card is detected by udev. |
| device_no | Optional | Number | device number as of now is being extracted from the device path where USB sound card is detected by udev. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | If the method succeeds, returnValue will contain true. |
| errorCode | Optional | Number | errorCode contains the error code if the method fails. The method will return errorCode only if it fails. |
| errorText | Optional | String | errorText contains the error text if the method fails. The method will return errorText only if it fails. |
Example
luna-send -n 1 luna://com.webos.service.audio/udev/event '{"event":"usb-mic-inserted", "soundcard_no":'1', "device_no":'0'}'
luna-send -n 1 luna://com.webos.service.audio/udev/event '{"event":"headset-inserted"}'
{"returnValue":true}
luna-send -n 1 luna://com.webos.service.audio/udev/event '{"event":"headset-removed"}'
{"returnValue":true}
state/setSoundProfile
Description
Sets a particular sound profile.
Remark
This method allows an application to set the following profiles:
- Sound [Only Ringing]
- Silent [No Ringing and Vibration] (default profile)
- Vibrate [Only Vibration]
- Sound + Vibrate [Ringing and Vibration]
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| ringer | Required | String | Specify whether to enable ringing to notify a user.
Default value: OFF Note: Combination of upper case and lower case in these values (like "On" / "Off" / "oFF") are not supported and treated as errors. |
| vibrate | Required | String | Specify whether to enable vibration to notify a user.
Note: Combination of upper case and lower case in these values (like "On" or "Off") are not supported and treated as errors. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates whether the execution succeeded. - true: Success - false: Failure |
| errorText | Optional | String | Describes the error. Returned only in case of execution failure. |
| errorCode | Optional | Number | Identifies the error. Returned only in case of execution failure |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 2 | profile setting failed: missing parameters ? | Mandatory parameters are missing from input arguments |
| 3 | profile setting failed: Invalid value for ringer | Invalid value of "ringer". Valid values are "ON" or "on" , "OFF" or "off" |
| 3 | profile setting failed: Invalid value for vibrate | Invalid value of "vibrate". Valid values are "ON" or "on" , "OFF" or "off" |
| 1 | Could not validate json message against schema | Invalid number of input parameters against defined schema of the API |
| 1 | Not a valid json message | Wrong JSON message format |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{ "ringer" : "on", "vibrate" : "on" }'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{ "ringer" : "off", "vibrate" : "on" }'
{
"returnValue": true
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{ "ringer" : "off", "vibrate" : "off" }'
{
"returnValue": true
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{ "ringer" : "on", "vibrate" : "off" }'
{
"returnValue": true
}
Example 5:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{ "ringer" : "on" }'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'vibrate' string parameter."
}
Example 6:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{"vibrate" : "off" }'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'ringer' string parameter."
}
Example 7:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{}'
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'ringer' string parameter."
}
Example 8:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{ "ringer" : "on", "vibrate" : "on" }'
{
"returnValue": true
}
Example 9:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{ "ringer" : "on", "vibrate" : "o" }'
{
"errorCode": 3,
"returnValue": false,
"errorText": "profile setting failed: Invalid value for vibrate"
}
Example 10:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{ "ringer" : "on", "vibrate" : on }'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Not a valid json message"
}
Example 11:
luna-send -n 1 -f luna://com.webos.service.audio/state/setSoundProfile '{ "ringer" : "on", "vibrate" : true }'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
state/getSoundProfile
Description
Subscribe to this API to get notifications when the sound profile is changed.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean | Subscribe for notifications when a profile is changed. Possible values are:
Default value: false |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| subscribed | Optional | Boolean | Indicates if subscribed to get notified.
|
| SoundProfile | Optional | String | Gives the current sound profile. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "Error Codes Reference" section of this method for details. |
| errorCode | Optional | Number | The error code for the failed operation. |
Subscription Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| SoundProfile | Optional | String | Returns the updated sound profile value. |
Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 1 | Could not validate json message against schema | Invalid number of input parameters against defined schema of the API |
| 1 | Not a valid json message | Wrong JSON message format |
Example
Example 1:
luna-send -i -f luna://com.webos.service.audio/state/getSoundProfile '{"subscribe": true}'
{
"subscribed": true,
"SoundProfile": "Sound & Vibrate",
"returnValue": true
}
{
"SoundProfile": "Sound & Vibrate",
"returnValue": true
}
{
"SoundProfile": "Sound",
"returnValue": true
}
{
"SoundProfile": "Silent",
"returnValue": true
}
{
"SoundProfile": "Vibrate only",
"returnValue": true
}
{
"SoundProfile": "Sound & Vibrate",
"returnValue": true
}
Example 2:
luna-send -i -f luna://com.webos.service.audio/state/getSoundProfile '{"subscribe": false}'
{
"subscribed": false,
"SoundProfile": "Sound & Vibrate",
"returnValue": true
}
Example 3:
luna-send -i -f luna://com.webos.service.audio/state/getSoundProfile '{}'
{
"subscribed": false,
"SoundProfile": "Sound & Vibrate",
"returnValue": true
}
Example 4:
luna-send -i -f luna://com.webos.service.audio/state/getSoundProfile '{"subscribed": false}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
UMI/connect
Description
Establishes connection for the audio resource.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| outputMode | Required | String | Audio output device. Possible values are:
|
| audioType | Required | String | Type of audio stream. Possible values are:
|
| sink | Required | String | Audio sink. Possible values are:
|
| source | Required | String | Audio source. Possible values are:
|
| sourcePort | Required | Number | Audio source port. |
| context | Optional | String | Audio pipeline ID. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
| source | Required | String | Audio source. Possible values are:
|
| sink | Required | String | Audio sink. Possible values are:
|
Example
luna-send -f -n 1 luna://com.webos.service.audio/UMI/connect '{"outputMode" : "alsa", "audioType":"umimedia", "sink" : "ALSA", "source": "AMIXER", "sourcePort": 0}'
{
"source": "AMIXER",
"sink": "ALSA",
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/UMI/connect '{"outputMode" : "alsa", "audioType":"umimedia", "sink" : "ALSA", "source": "AMIXERTEST", "sourcePort": 0}'
{
"errorCode": 4,
"returnValue": false,
"errorText": "Invalid parameters"
}
luna-send -f -n 1 luna://com.webos.service.audio/UMI/connect '{"outputMode" : "alsa", "audioType":"umimedia", "sink" : "ALSA", "source": "AMIXER"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
UMI/disconnect
Description
Disconnects the connection.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| sink | Required | String | Audio sink. Possible values are:
|
| source | Required | String | Audio source. Possible values are:
|
| sourcePort | Required | Number | Audio source port. |
| audioType | Required | String | Audio stream type. Possible values are:
|
| context | Optional | String | Audio pipeline ID. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
| source | Required | String | Audio source. |
| sink | Required | String | Audio sink. |
Example
luna-send -f -n 1 luna://com.webos.service.audio/UMI/disconnect '{"sink" : "ALSA", "source": "AMIXER", "sourcePort": 0, "audioType":"umimedia"}'
{
"source": "AMIXER",
"sink": "ALSA",
"returnValue": true
}
luna-send -f -n 1 luna://com.webos.service.audio/UMI/disconnect '{"sink" : "ALSA", "source": "AMIXER", "sourcePort": 0, "audioType":"umimedia"}'
{
"errorCode": 200,
"returnValue": false,
"errorText": "Audio not connected"
}
luna-send -f -n 1 luna://com.webos.service.audio/UMI/disconnect '{"sink" : "ALSA", "source": "AMIXER", "sourcePort": 0}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
luna-send -f -n 1 luna://com.webos.service.audio/UMI/disconnect '{"sink" : "ALSA", "source": "AMIXER", "sourcePort": 0, "audioType":"umimediaTest"}'
{
"errorCode": 19,
"returnValue": false,
"errorText": "Internal error"
}
UMI/getStatus
Description
Shows the connection status of audio resources.
Parameters
None
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| audio | Required | Object array: audio | Audio connection details. |
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
luna-send -f -n 1 luna://com.webos.service.audio/UMI/getStatus '{}'
{
"audio": [
{
"source": "AMIXER",
"sink": "ALSA",
"muted": false,
"outputMode": "alsa"
}
],
"returnValue": true
}
UMI/mute
Description
Mutes or unmutes the input volume of the requested connection.
Note: This method is added for future-use. It does not have any impact on the audio setting.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| sink | Required | String | Audio sink. Possible values are:
|
| source | Required | String | Audio source. Possible values are:
|
| sourcePort | Required | Number | Audio source port. |
| mute | Required | Boolean | Indicates if the input volume is to be muted. Possible values are:
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
luna-send -n 1 -f luna://com.webos.service.audio/UMI/mute '{"sink" : "ALSA", "source": "AMIXER", "sourcePort": 0, "mute":true}'
{
"returnValue": true
}
luna-send -n 1 -f luna://com.webos.service.audio/UMI/mute '{"sink" : "ALSA", "source": "AMIXER", "sourcePort": 0, "mute":false}'
{
"returnValue": true
}
luna-send -n 1 -f luna://com.webos.service.audio/UMI/mute '{"sink" : "ALSA", "source": "AMIXER", "sourcePort": 0, "mute":1}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
master/getVolume
Description
Gives the current master volume of the audio output device.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean | Indicates if subscribed to get notifications. Possible values are:
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of the operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
| volumeStatus | Optional | Object array: VolumeStatus | Indicates the status of volume for different audio output devices. |
| callerId | Optional | String | Indicates the luna service name of the calling application. |
Example
# luna-send -n i -f luna://com.webos.service.audio/master/getVolume '{
"subscribe":true
}'
Response:
{
"volumeStatus":{
"sessionId":0,
"muted":false,
"volume":100,
"soundOutput":"alsa"
},
"returnValue":true,
"callerId":"com.webos.lunasend-2027"
}
After change volume for session 1:
{
"volumeStatus":{
"sessionId":1,
"muted":false,
"volume":50,
"soundOutput":"alsa"
},
"returnValue":true,
"callerId":"com.webos.lunasend-2057"
}
master/setVolume
Description
Sets the master volume of the audio output device.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| sessionId | Optional | Number | Indicates the display/session applicable to the operation. Possible values are:
Note: If not provided, the operation is applied to session 0. |
| soundOutput | Required | String | Indicates the target sound output device. Possible value: "alsa" |
| volume | Required | Number | Indicates the volume level to be set. Possible range: 0-100 |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| volume | Required | Number | Indicates the current volume level. Possible range: 0-100 |
| soundOutput | Required | String | Indicates the target sound output device. Possible value: "alsa" |
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
| errorCode | Optional | Number | The error code for the failed operation. |
Example
# luna-send -f -n 1 luna://com.webos.service.audio/master/setVolume '{
"soundOutput":"alsa",
"volume":57,
"sessionId":0
}'
Response:
{
"volume": 57,
"returnValue": true,
"soundOutput": "alsa"
}
# luna-send -f -n 1 luna://com.webos.service.audio/master/setVolume '{
"soundOutput":"alsa",
"volume":50,
"sessionId":1
}'
Response:
{
"volume": 50,
"returnValue": true,
"soundOutput": "alsa"
}
master/volumeUp
Description
Increases the master volume of the device.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| sessionId | Optional | Number | Indicates the display/session applicable to the operation. Possible values are:
Note: If not provided, the operation is applied to session 0. |
| soundOutput | Required | String | Indicates the audio output device. Possible value: "alsa" |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| volume | Required | Number | Indicates the current level of volume. Possible range: 0-100 |
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
| soundOutput | Required | String | Indicates the audio output device. Possible value: "alsa" |
Example
# luna-send -f -n 1 luna://com.webos.service.audio/master/volumeUp '{
"soundOutput":"alsa",
"sessionId":0
}'
Response:
{
"volume": 12,
"returnValue": true,
"soundOutput": "alsa"
}
# luna-send -f -n 1 luna://com.webos.service.audio/master/volumeUp '{
"soundOutput":"alsa",
"sessionId":1
}'
Response:
{
"volume": 20
"returnValue": true,
"soundOutput": "alsa"
}
master/volumeDown
Description
Reduces the master volume of the device.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| soundOutput | Required | String | Indicates the audio output device. Possible value: "alsa" |
| sessionId | Optional | Number | Indicates the display/session applicable to the operation. Possible values are:
Note: If not provided, the operation is applied to session 0. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| volume | Required | Number | Indicates the current level of volume. Possible range: 0-100 |
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
| soundOutput | Required | String | Indicates the audio sound output device. Possible value: "alsa" |
Example
# luna-send -f -n 1 luna://com.webos.service.audio/master/volumeDown '{
"soundOutput":"alsa",
"sessionId":0
}'
Response:
{
"volume": 11,
"returnValue": true,
"soundOutput": "alsa"
}
# luna-send -f -n 1 luna://com.webos.service.audio/master/volumeDown '{
"soundOutput":"alsa",
"sessionId":1
}'
Response:
{
"volume": 49,
"returnValue": true,
"soundOutput": "alsa"
}
master/muteVolume
Description
Mutes or unmutes the master volume of the audio output device.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| mute | Required | Boolean | Indicates if the master volume is to be muted. Possible values are:
|
| sessionId | Optional | Number | Indicates the display/session applicable to the operation. Possible values are:
Note: If not provided, the operation is applied to the audio device connected to both the displays/sessions. |
| soundOutput | Required | String | Indicates the audio output device. Possible value: "alsa" |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of the operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
| mute | Required | Boolean | Indicates if the master volume is on mute or not. Possible values are:
|
| soundOutput | Required | String | Indicates the audio output device. Possible value: "alsa" |
Example
# luna-send -f -n 1 luna://com.webos.service.audio/master/muteVolume '{
"soundOutput":"alsa",
"mute":true,
"sessionId":0
}'
Response:
{
"mute": true,
"returnValue": true,
"soundOutput": "alsa"
}
# luna-send -f -n 1 luna://com.webos.service.audio/master/muteVolume '{
"soundOutput":"alsa",
"mute":false,
"sessionId":0
}'
Response:
{
"mute": false,
"returnValue": true,
"soundOutput": "alsa"
}
# luna-send -f -n 1 luna://com.webos.service.audio/master/muteVolume '{
"soundOutput":"alsa",
"mute":true,
"sessionId":1
}'
Response:
{
"mute": true,
"returnValue": true,
"soundOutput": "alsa"
}
# luna-send -f -n 1 luna://com.webos.service.audio/master/muteVolume '{
"soundOutput":"alsa",
"mute":false,
"sessionId":1
}'
Response:
{
"mute": false,
"returnValue": true,
"soundOutput": "alsa"
}
soundSettings/setSoundOut
Description
Sets the audio output device.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| soundOut | Required | String | Audio output device. Possible values are:
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| soundOut | Required | String | Audio output device. Possible values are:
|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example:
# luna-send -n 1 -f luna://com.webos.service.audio/soundSettings/setSoundOut '{"soundOut": "alsa"}'
Response:
{
"soundOut": "alsa",
"returnValue": true
}
Example:
# luna-send -n 1 -f luna://com.webos.service.audio/soundSettings/setSoundOut '{"soundOut": "alsaTest"}'
Response:
{
"errorCode": 10,
"returnValue": false,
"errorText": "Not implemented"
}
alert/setVolume
Description
Sets the volume level of the current or specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| volume | Required | Number | Volume level to be set. |
| scenario | Optional | String | The scenario to apply the volume change to. If not specified, the volume of the current scenario gets updated. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| Return | Required | Object: CallReturn | Details of the method success/failure. CallReturn object contains returnValue, errorCode, errorText and Id. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/alert/setVolume '{"volume":75}'
Response:
{
"returnValue": true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/alert/setVolume '{"volume":75, "scenario":"alert_default"}'
Response:
{
"returnValue": true
}
alert/getVolume
Description
Gets the volume level of the current or specified audio scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Optional | String | The scenario to apply the volume change to. If not specified, the volume of the current scenario gets updated. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| scenario | Required | String | Array containg scenarios whose volume has been changed. |
| volume | Required | Number | Current volume [0, 100]. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/alert/getVolume '{}'
Response:
{
"scenario": "alert_default",
"volume": 80,
"returnValue": true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/alert/getVolume '{"scenario":"alert_default"}'
Response:
{
"scenario": "alert_default",
"volume": 80,
"returnValue": true
}
alert/setMuted
Description
Mutes or unmutes the alert volume.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| muted | Required | Boolean |
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Object: CallReturn | Details of the method success/failure. CallReturn object contains returnValue, errorCode, errorText and Id. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/alert/setMuted '{"muted":true}'
Response:
{
"returnValue": true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/alert/setMuted '{"muted":false}'
Response:
{
"returnValue": true
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/alert/setMuted '{}'
Response:
{
"errorCode":2,
"returnValue":false,
"errorText":"Missing 'muted' boolean parameter."
}
alert/status
Description
Gets the current status of alert module.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean | Subscribe to get notified when the status changes. Possible values are:
Default value: false |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| ringtonewithvibration | Required | Boolean | Vibrates along with Ringtone. |
| scenario | Required | String | Scenario that is currently selected. |
| muted | Required | Boolean | Indicates if the current module is muted. Possible values are:
|
| subscribed | Required | Boolean | Indicates if subscribed to get notified when a connection is closed.
|
| hac | Required | Boolean | Indicates hac status. Possible values are:
|
| volume | Required | Number | Current volume set. Valid range: 0 - 100 |
| action | Required | String | Update information. The value will be one of the following:
|
| ringer switch | Required | Boolean | Indicates the state of the ringer switch. Possible values are:
|
| slider | Required | Boolean | Indicates the state of the slider. Possible values are:
|
| active | Required | Boolean | Indicates if the current module is actively used. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/alert/status '{}'
Response:
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "alert_default",
"muted": false,
"subscribed": false,
"hac": false,
"volume": 75,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/alert/status '{"subscribe" : true}'
Response:
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "alert_default",
"muted": false,
"subscribed": true,
"hac": false,
"volume": 75,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
alert/offsetVolume
Description
Increases or decreases the volume of the current or specified scenario, in steps or percent.
To increase the volume, pass a positive value. To decrease the value, pass a negative value.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | String | The scenario to apply the volume change to. If not specified, the volume of the current scenario gets updated. |
| offset | Required | Number | Offset value to be set to increase or decrease the volume.
|
| unit | Required | String | This is used to interpret the offset argument. Possible values are:
The default value of unit is step. |
Example
Example 1:
luna-send -n 1 -f luna://com.webos.service.audio/alert/offsetVolume '{"scenario":"alert_default","offset":10}'
{
"returnValue": true
}
Example 2:
luna-send -n 1 -f luna://com.webos.service.audio/alert/offsetVolume '{"scenario":"alert_default","offset":15,"unit":"percent"}'
{
"returnValue": true
}
Example 3:
luna-send -n 1 -f luna://com.webos.service.audio/alert/offsetVolume '{"scenario":"alert_default","offset":-15,"unit":"percent"}'
{
"returnValue": true
}
Example 4:
luna-send -n 1 -f luna://com.webos.service.audio/alert/offsetVolume '{"scenario":"alert_default","offset":-150,"unit":"percent"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 5:
luna-send -n 1 -f luna://com.webos.service.audio/alert/offsetVolume '{"scenario":"alert_default","offset":150,"unit":"percent"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 6:
luna-send -n 1 -f luna://com.webos.service.audio/alert/offsetVolume '{"scenario":"alert_default","offset":15,"unit":"step"}'
{
"returnValue": true
}
Example 7:
luna-send -n 1 -f luna://com.webos.service.audio/alert/offsetVolume '{"scenario":"alert_default","offset":-15,"unit":"step"}'
{
"returnValue": true
}
Example 8:
luna-send -n 1 -f luna://com.webos.service.audio/alert/offsetVolume '{"scenario":"alert_default","offset":-25,"unit":"step"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 9:
luna-send -n 1 -f luna://com.webos.service.audio/alert/offsetVolume '{"scenario":"alert_default","offset":25,"unit":"step"}'
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
Example 10:
luna-send -n 1 -f luna://com.webos.service.audio/alert/offsetVolume '{"scenarioTEST":"alert_default","offset":25,"unit":"step"}'
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
alarm/setVolume
Description
Sets the volume level of the current or specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| volume | Required | Number | Volume level to be set. |
| scenario | Optional | String | The scenario to apply the volume change to. If not specified, the volume of the current scenario gets updated. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/setVolume '{"volume":50}'
Response:
{
"returnValue":true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/setVolume '{"volume":10, "scenario":"alarm_default"}'
Response:
{
"returnValue": true
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/setVolume '{}'
Response:
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'volume' integer parameter."
}
Example 4:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/setVolume '{"volume":10, "scenarioa":"alarm_default"}'
Response:
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
Example 5:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/setVolume '{"volume":500}'
Response:
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'volume' integer parameter value or file not found."
}
Example 6:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/setVolume '{"volume":-500}'
Response:
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'volume' integer parameter value or file not found."
}
alarm/status
Description
Gets the current status of the alarm module.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean | Subscribe to get notified when the status changes. Possible values are:
Default value: false |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| ringtonewithvibration | Required | Boolean | Indicates if the device vibrates along with the ringtone. Possible values are:
|
| scenario | Required | String | Scenario that is currently selected. |
| muted | Required | Boolean | Indicates if the current module is muted. Possible values are:
|
| subscribed | Required | Boolean | Indicates if subscribed to get notified when status changes.
|
| hac | Required | Boolean | Indicates HAC status. Possible values are:
|
| volume | Required | Number | Current volume set. Valid range: 0 - 100 |
| action | Required | String | Indicates the type of action. Possible values are:
|
| ringer switch | Required | Boolean | Indicates the state of the ringer switch. Possible values are:
|
| slider | Required | Boolean | Indicates the state of the slider. Possible values are:
|
| active | Required | Boolean | Indicates if the current module is actively used. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1: When subscribe is set to true
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/status '{"subscribe" : true}'
Response:
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "alarm_default",
"muted": false,
"subscribed": true,
"hac": false,
"volume": 50,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
Example 2: When subscribe is set to false
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/status '{"subscribe" : false}'
Response:
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "alarm_default",
"muted": false,
"subscribed": false,
"hac": false,
"volume": 50,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
Example 3: Using the default value
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/status '{}'
Response:
{
"returnValue":true,
"ringtonewithvibration":true,
"scenario":"alarm_default",
"muted":false,
"subscribed":false,
"hac":false,
"volume":50,
"action":"requested",
"ringer switch":true,
"slider":false,
"active":false
}
alarm/offsetVolume
Description
Increases or decreases the volume of the current or specified scenario, in steps or percentage.
To increase the volume, pass a positive value. To decrease the value, pass a negative value.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | String | The scenario to apply the volume change to. If not specified, the volume of the current scenario gets updated. |
| unit | Required | String | Used to interpret the offset argument. Possible values are:
Default value: step |
| offset | Required | Number | Offset value to increase or decrease the volume.
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/offsetVolume '{"scenario":"alarm_default","offset":10,"unit":"step"}'
Response:
{
"returnValue": true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/offsetVolume '{"scenario":"alarm_default","offset":-5}'
Response:
{
"returnValue": true
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/offsetVolume '{"scenario":"alarm_default","offset":10,"unit":"percent"}'
Response:
{
"returnValue": true
}
Example 4:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/offsetVolume '{"scenario":"alarm_default","offset":-50}'
Response:
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'offset' integer parameter value or file not found."
}
alarm/getVolume
Description
Gets the volume level of the current or specified audio scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Optional | String | The scenario to apply the volume change to. If not specified, the volume of the current scenario gets updated. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | String | Scenario whose volume has been changed. |
| volume | Required | Number | Current volume [0, 100]. |
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1: When the scenario is not specified
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/getVolume '{}'
Response:
{
"scenario": "alarm_default",
"volume": 10,
"returnValue": true
}
Example 2: When a scenario is specified
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/getVolume '{"scenario":"alarm_default"}'
Response:
{
"scenario": "alarm_default",
"volume": 10,
"returnValue": true
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/getVolume '{"scenario":"alarm"}'
Response:
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to get parameter (invalid scenario name?)"
}
alarm/setMuted
Description
Mute or unmute the alarm volume.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| muted | Required | Boolean |
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/setMuted '{"muted":true}'
Response:
{
"returnValue": true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/setMuted '{"muted":false}'
Response:
{
"returnValue": true
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/setMuted '{}'
Response:
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'muted' boolean parameter."
}
alarm/getAlarmOn
Description
Returns the value set by the alarm.
Parameters
None
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| AlarmOn | Required | Boolean | Indicates whether alarm sound is ON or OFF in silent or vibration modes. Possible values are:
|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example:
# luna-send -n 1 -f luna://com.webos.service.audio/alarm/getAlarmOn '{}'
Response:
{
"AlarmOn": true,
"returnValue": true
}
voiceCommand/status
Description
Get a current scenario of voiceCommand state.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean | Subscribe to get notified when the status changes. Possible values are:
Default value: false |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| mic_gain | Required | Number | Mic gain of current or specified scenario. Valid range: 0 -100. |
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| ringtonewithvibration | Required | Boolean | Indicates if the device vibrates along with the ringtone. Possible values are:
|
| scenario | Required | String | Scenario that is currently selected. |
| muted | Required | Boolean | Indicates if the current module is muted. Possible values are:
|
| hac | Required | String | Indicates HAC status. Possible values are:
|
| subscribed | Required | Boolean | Indicates if subscribed to get notified when status changes.
|
| volume | Required | Number | Current volume [0, 100]. |
| action | Required | String | Indicates the type of action. Possible values are:
|
| ringer switch | Required | Boolean | Indicates the state of the ringer switch. Possible values are:
|
| slider | Required | Boolean | Indicates the state of the slider. Possible values are:
|
| active | Required | Boolean | Indicates if the current module is actively used. Possible values are:
|
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/status '{"subscribe" : true}'
Response:
{
"mic_gain": 50,
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "voice_command_back_speaker",
"muted": false,
"hac": false,
"subscribed": true,
"volume": 90,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/status '{"subscribe" : false}'
Response:
{
"mic_gain": 50,
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "voice_command_back_speaker",
"muted": false,
"hac": false,
"subscribed": false,
"volume": 90,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/status '{}'
Response:
{
"mic_gain": 50,
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "voice_command_back_speaker",
"muted": false,
"hac": false,
"subscribed": false,
"volume": 90,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
voiceCommand/getVolume
Description
Get the volume level of the current or specified audio scenario
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Optional | String | Scenario for which the volume is to be obtained. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| scenario | Required | String | Scenario whose volume has been changed. |
| volume | Required | Number | Current volume ranges between [0, 100]. |
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/getVolume '{}'
Response:
{
"scenario": "voice_command_back_speaker",
"volume": 90,
"returnValue": true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/getVolume '{"scenario":"voice_command_back_speaker"}'
Response:
{
"scenario": "voice_command_back_speaker",
"volume": 90,
"returnValue": true
}
voiceCommand/listScenarios
Description
Get a list of available (enabled/disabled) scenarios for voiceCommand.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| enabled | Optional | Boolean | Indicates whether to list or hide scenarios that are enabled for voice commands. Possible values are:
Default value: true |
| disabled | Optional | Boolean | Indicates whether to list or hide scenarios that are disabled for voice commands. Possible values are:
Default value: false |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| scenarios | Optional | String array | An array of scenarios. |
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/listScenarios '{}'
Response:
{
"returnValue": true,
"scenarios": [
"voice_command_back_speaker"
]
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/listScenarios '{"enabled":true,"disabled":true}'
Response:
{
"returnValue": true,
"scenarios": [
"voice_command_back_speaker"
]
}
voiceCommand/setCurrentScenario
Description
Designate a scenario as a current scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | String | Scenario to set as the current scenario. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/setCurrentScenario '{"scenario":"voice_command_back_speaker"}'
Response:
{
"returnValue": true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/setCurrentScenario '{"scenario":"media__default"}'
Response:
{
"errorCode": 3,
"returnValue": false,
"errorText": "Could not set current scenario."
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/setCurrentScenario '{"scenario":"voice_command_back_speake"}'
Response:
{
"errorCode": 3,
"returnValue": false,
"errorText": "Could not set current scenario."
}
voiceCommand/getMicGain
Description
Get mic gain of the current or specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Optional | String | Scenario to get the mic gain for. If not specified, currently selected scenario will be used. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| mic_gain | Required | Number | Mic gain of current or specified scenario. Valid range: 0 - 100 |
| scenario | Required | String | Either the scenario specified in the input of this method or the currently selected scenario. |
Example
Example 1:
# luna-send -n 1 luna://com.webos.service.audio/voiceCommand/getMicGain '{}'
Response:
{
"returnValue":true,
"scenario":"voice_command_back_speaker",
"mic_gain":50
}
Example 2:
# luna-send -n 1 luna://com.webos.service.audio/voiceCommand/getMicGain '{"scenario":"voice_command_back_speaker"}'
Response:
{
"returnValue":true,
"scenario":"voice_command_back_speaker",
"mic_gain":50
}
Example 3:
# luna-send -n 1 luna://com.webos.service.audio/voiceCommand/getMicGain '{"scenario":"voice_command_back_speake"}'
Response:
{
"returnValue":false,
"errorCode":3,
"errorText":"failed to get parameter (invalid scenario name?)"
}
voiceCommand/getCurrentScenario
Description
Gets the current scenario.
Parameters
None
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | String | Scenario currently selected. |
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/getCurrentScenario '{}'
Response:
{
"scenario": "voice_command_back_speaker",
"returnValue": true
}
voiceCommand/enableScenario
Description
Enables a specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | String | Scenario to be enabled. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/enableScenario '{"scenario":"voice_command_back_speaker"}'
Response:
{
"returnValue": true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/enableScenario '{}'
Response:
{
"errorCode": 2,
"returnValue": false,
"errorText": "Missing 'scenario' string parameter."
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/enableScenario '{"scenario":"voice_command_back_speake"}'
Response:
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'scenario' string parameter value or file not found."
}
Example 4:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/enableScenario '{"scenario":"alarm_default"}'
Response:
{
"errorCode": 3,
"returnValue": false,
"errorText": "Invalid 'scenario' string parameter value or file not found."
}
voiceCommand/disableScenario
Description
Disables the specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | String | Scenario to be disabled. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example:
# luna-send -n 1 -f luna://com.webos.service.audio/voiceCommand/disableScenario '{"scenario":"voice_command_back_speaker"}'
Response:
{
"errorCode": 3,
"returnValue": false,
"errorText": "Could not disable requested scenario."
}
notification/status
Description
Gets the current state of audiod.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| subscribe | Optional | Boolean | Subscribe to get notified when the status changes. Possible values are:
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| ringtonewithvibration | Required | Boolean | Indicates if the device vibrates along with the ringtone. Possible values are:
|
| scenario | Required | String | Scenario that is currently selected. |
| muted | Required | Boolean | Indicates if the current module is muted. Possible values are:
|
| subscribed | Required | Boolean | Indicates if subscribed to get notified when status changes.
|
| hac | Required | Boolean | Indicates HAC status. Possible values are:
|
| volume | Required | Number | Current volume [0, 100]. |
| action | Required | String | Indicates the type of action. Possible values are:
|
| ringer switch | Required | Boolean | Indicates the state of the ringer switch. Possible values are:
|
| slider | Required | Boolean | Indicates the state of the slider. Possible values are:
|
| active | Required | Boolean | Indicates if the current module is actively used. Possible values are:
|
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/notification/status '{"subscribe":true}'
Response:
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "notification_default",
"muted": false,
"subscribed": true,
"hac": false,
"volume": 50,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/notification/status '{"subscribe":false}'
Response:
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "notification_default",
"muted": false,
"subscribed": false,
"hac": false,
"volume": 50,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/notification/status '{}'
Response:
{
"returnValue": true,
"ringtonewithvibration": true,
"scenario": "notification_default",
"muted": false,
"subscribed": false,
"hac": false,
"volume": 50,
"action": "requested",
"ringer switch": true,
"slider": false,
"active": false
}
notification/getVolume
Description
Gets the volume level of the current or specified scenario.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Optional | String | Scenario for which to get the volume. If not specified, the volume is retrieved from currently selected scenario. |
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| scenario | Required | String | Scenario for which to get the volume. |
| volume | Required | Number | Current volume [0, 100]. |
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example 1:
# luna-send -n 1 -f luna://com.webos.service.audio/notification/getVolume '{"scenario" : "notification_default"}'
Response:
{
"scenario": "notification_default",
"volume": 50,
"returnValue": true
}
Example 2:
# luna-send -n 1 -f luna://com.webos.service.audio/notification/getVolume '{}'
Response:
{
"scenario": "notification_default",
"volume": 50,
"returnValue": true
}
Example 3:
# luna-send -n 1 -f luna://com.webos.service.audio/notification/getVolume '{"scenario" : "notification_defaultTest"}'
Response:
{
"errorCode": 3,
"returnValue": false,
"errorText": "failed to get parameter (invalid scenario name?)"
}
Example 4:
# luna-send -n 1 -f luna://com.webos.service.audio/notification/getVolume '{"scenarioTest" : "notification_default"}'
Response:
{
"errorCode": 1,
"returnValue": false,
"errorText": "Could not validate json message against schema"
}
state/getVolumeBalance
Description
Gives the current sound balance value (default sound balance is set to zero).
Parameters
None
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| balanceVolume | Required | Number | Audio balance volume. Valid range: -10 to +10 |
Example
Example:
# luna-send -n 1 -f luna://com.webos.service.audio/state/getVolumeBalance '{}'
Response:
{
"balanceVolume": 0,
"returnValue": true
}
state/setRingerSwitch
Description
Sets ringer switch OFF/ON.
Parameters
Name | Required | Type | Description |
|---|---|---|---|
| ringer | Required | Boolean | Indicates whether the ringer switch is ON or OFF. Possible values are:
|
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example:
# luna-send -n 1 -f luna://com.webos.service.audio/state/setRingerSwitch '{"ringer":true}'
Response:
{
"returnValue": true
}
state/getTouchSound
Description
Gets the touch sound status (feedback sound status).
Parameters
None
Call Returns
Name | Required | Type | Description |
|---|---|---|---|
| touchSound | Required | String | Indicates the status of touch sound. Possible values are:
|
| returnValue | Required | Boolean | Indicates the status of operation. Possible values are:
|
| errorCode | Optional | Number | The error code for the failed operation. |
| errorText | Optional | String | Indicates the reason for the failure of the operation. See the "API Error Codes Reference" section for details. |
Example
Example:
# luna-send -n 1 -f luna://com.webos.service.audio/state/getTouchSound '{}'
Response:
{
"touchSound": "OFF",
"returnValue": true
}
Objects
CallReturn
Default object returned by methods.Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | String |
The method may fail because of one the error conditions described in the Error Codes Reference of this API. |
| errorCode | Optional | Number | errorCode contains the error code if the method fails. The method will return errorCode only if it fails. |
| errorText | Optional | String | errorText contains the error text if the method fails. The method will return errorText only if it fails. |
getCurrentScenarioReturn
Object returned by getCurrentScenario
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean |
|
| scenario | Optional | String | Scenario currently selected if no error occurred |
| errorText | Optional | String | errorText contains the error text if the method fails. The method will return errorText only if it fails. |
listScenariosReturn
Object returned by listScenarios
Name | Required | Type | Description |
|---|---|---|---|
| returnValue | Required | Boolean | Flag that indicates success/failure of the request.
|
| scenarios | Optional | String array | An array of scenarios |
| errorText | Optional | String | errorText contains the error text if the method fails. The method will return errorText only if it fails. |
audio
Object returned by UMI/getStatus.
Name | Required | Type | Description |
|---|---|---|---|
| source | Required | String | Audio Source. Possible Values are:
|
| sink | Required | String | Audio Sink. Possible Values are:
|
| muted | Required | Boolean | Indicates if the audio is muted. Possible values are:
|
| outputMode | Required | String | Audio output device. Possible values are:
|
VolumeStatus
Provides the volume details of the target sound output device.
Name | Required | Type | Description |
|---|---|---|---|
| muted | Required | Boolean | Indicates if the audio is on mute or not. Possible values are:
|
| volume | Required | Number | Indicates the current volume level. Returns a value only if the audio is not on mute. |
| soundOutput | Required | String | Indicates the target sound output device. Possible value: "alsa" |
| sessionId | Required | Number | Indicates the volume status of the targeted display/session. Possible values are:
|
API Error Codes Reference
Error Code | Error Text | Error Description |
|---|---|---|
| 200 | Audio not connected | Audio not connected |
| 17 | Audiod internal error | AUDIOD_ERRORCODE_FAILED_MIXER_CALL |
| 19 | Audiod internal error | AUDIOD_ERRORCODE_INVALID_AUDIO_TYPE |
| 18 | Audiod internal error | AUDIOD_ERRORCODE_INVALID_ENVELOPE_INSTANCE |
| 16 | Audiod internal error | AUDIOD_ERRORCODE_INVALID_MIXER_INSTANCE |
| 21 | Invalid parameters | AUDIOD_ERRORCODE_INVALID_PARAMS |
| 23 | Invalid schema | AUDIOD_ERRORCODE_INVALID_SCHEMA |
| 3 | Invalid volume control | AUDIOD_ERRORCODE_NOT_SUPPORT_VOLUME_CHANGE |
| 3 | Volume limit reached | AUDIOD_ERRORCODE_NOT_SUPPORT_VOLUME_CHANGE |
| 22 | Not supported | AUDIOD_ERRORCODE_NOT_SUPPORTED |
| 22 | Driver error | AUDIOD_ERRORCODE_NOT_SUPPORTED |
| 22 | Audio not connected | AUDIOD_ERRORCODE_NOT_SUPPORTED |
| 22 | Soundout type not supported | AUDIOD_ERRORCODE_NOT_SUPPORTED |
| 22 | Connection not supported | AUDIOD_ERRORCODE_NOT_SUPPORTED |
| 20 | Unknown error | AUDIOD_ERRORCODE_UNKNOWN_ERROR |
| 1 | Could not validate json message against schema | Invalid number of input parameters against defined schema of the method |
| 204 | Volume control is not supported | Volume control is not supported |
| 1 | Not a valid json message | Wrong JSON message format |