Solved - How can I use JSON-RPC to change my Audio output device

Solved How can I use JSON-RPC to change my Audio output device - Printable Version

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+---- Thread: Solved How can I use JSON-RPC to change my Audio output device (/showthread.php?tid=362723)

How can I use JSON-RPC to change my Audio output device - graysky - 2021-05-20

I understand that the following curl command should be able to change an audio output device. When I try it on 19.1, the curl call works, but it selects the incorrect audio device if I check by going to System>Audio>Audio output device. Note I did find JSON-RPC_API/v12 which does not show audiooutput.audiodevice at all.

On my system, there are 8 audio devices per my kodi.log but when I check after executing the below command, "HDA Intel, DHMI #0" is displayed but I expect that "HDA Intel, SAM SAMSUNG on HDMI#1" to be there.

Code:
% curl -v -H "Content-type: application/json" -d '{"jsonrpc":"2.0","method":"Settings.SetSettingValue", "params":{"setting":"audiooutput.audiodevice","value":"hdmi:CARD=HDMI,DEV=1"},"id":1}' http://localhost:8080/jsonrpc -u xbmc:xbmc

*   Trying ::1:8080...

* Connected to localhost (::1) port 8080 (#0)

* Server auth using Basic with user 'xbmc'

> POST /jsonrpc HTTP/1.1

> Host: localhost:8080

> Authorization: Basic eGJtYzp4Ym1j

> User-Agent: curl/7.76.1

> Accept: */*

> Content-type: application/json

> Content-Length: 139

> 

* Mark bundle as not supporting multiuse

< HTTP/1.1 200 OK

< Connection: Keep-Alive

< Content-Type: application/json

< Content-Length: 38

< Cache-Control: private, max-age=0, no-cache

< Accept-Ranges: none

< Date: Thu, 20 May 2021 19:57:09 GMT

< 

* Connection #0 to host localhost left intact

{"id":1,"jsonrpc":"2.0","result":true}

I flagged asking a mod to move this to the right section, thanks: https://forum.kodi.tv/forumdisplay.php?fid=174

RE: How can I use JSON-RPC to change my Audio output device - DarrenHill - 2021-05-20

Thread moved as requested

RE: How can I use JSON-RPC to change my Audio output device - graysky - 2021-05-21

My problem was solved by @lotte67890's advice in this thread. Seems the syntax for the value to send has changed and cannot be directly extracted from the log without appending a literal "ALSA:" like so:

Code:
curl -v -H "Content-type: application/json" -d '{"jsonrpc":"2.0","method":"Settings.SetSettingValue","params":{"setting":"audiooutput.audiodevice","value":"ALSA:hdmi:CARD=HDMI,DEV=1"},"id":1}' http://localhost:8080/jsonrpc -u xbmc:xbmc

To parrot from the linked thread, to find this value, run:

Code:
% curl -v -H "Content-type: application/json" -d '{"jsonrpc":"2.0","id": 1, "method":"Settings.GetSettingValue", "params": {"setting": "audiooutput.audiodevice"} }' http://localhost:8080/jsonrpc -u xbmc:xbmc                           

*   Trying ::1:8080...

* Connected to localhost (::1) port 8080 (#0)

* Server auth using Basic with user 'xbmc'

> POST /jsonrpc HTTP/1.1

> Host: localhost:8080

> Authorization: Basic eGJtYzp4Ym1j

> User-Agent: curl/7.76.1

> Accept: */*

> Content-type: application/json

> Content-Length: 113

> 

* Mark bundle as not supporting multiuse

< HTTP/1.1 200 OK

< Connection: Keep-Alive

< Content-Type: application/json

< Content-Length: 71

< Cache-Control: private, max-age=0, no-cache

< Accept-Ranges: none

< Date: Fri, 21 May 2021 09:58:48 GMT

< 

* Connection #0 to host localhost left intact

{"id":1,"jsonrpc":"2.0","result":{"value":"ALSA:hdmi:CARD=HDMI,DEV=1"}}