setTVChannel

[grrosminet]

Hi

I've a LG TV model :

{
   "returnValue":true,
   "product_name":"webOSTV 3.0",
   "model_name":"HE_DTV_W16N_AFADABAA",
   "sw_type":"FIRMWARE",
   "major_ver":"05",
   "minor_ver":"50.95",
   "country":"EU7",
   "country_group":"EU",
   "device_id":"c8:08:e9:c4:41:d2",
   "auth_flag":"N",
   "ignore_disable":"N",
   "eco_info":"01",
   "config_key":"00",
   "language_code":"fr-FR"
}

getTVChannel returns this data :

{
   "type":"response",
   "id":"channels_0",
   "payload":{
      "returnValue":true,
      "channelId":"1_29_1_1_6_1537_8442",
      "signalChannelId":"6_1537_8442",
      "channelModeId":0,
      "channelModeName":"Terrestrial",
      "channelTypeId":1,
      "channelTypeName":"Terrestrial Digital TV",
      "channelNumber":"1",
      "channelName":"TF1",
      "physicalNumber":29,
      "isSkipped":false,
      "isLocked":false,
      "isDescrambled":false,
      "isScrambled":false,
      "isFineTuned":false,
      "isInvisible":false,
      "isHEVCChannel":false,
      "favoriteGroup":null,
      "hybridtvType":"HBBTV",
      "dualChannel":{
         "dualChannelId":null,
         "dualChannelTypeId":null,
         "dualChannelTypeName":null,
         "dualChannelNumber":null
      }
   }
}

I have tried several channelId with setTVChannel

lgtv TV setTVChannel 1
lgtv TV setTVChannel 6_1537_8442
lgtv TV setTVChannel 1_29_1_1_6_1537_8442

But I still have the same error :

{
   "type":"error",
   "id":"0",
   "error":"500 Application error",
   "payload":{
      "returnValue":false,
      "errorCode":-1000,
      "errorText":"invalid channel id"
   }
}

Any idea what's wrong ?

[bjornreppen]

❯ lgtv stue setTVChannel 3_9_17_17_4_7227_70
DEBUG:root:{'id': '0', 'type': 'request', 'uri': 'ssap://tv/openChannel', 'payload': '{"channelId": 3917174722770}'}

From the log it looks like the client is stripping out the underscores before sending it to the TV.

[bjornreppen]

A workaround that seems to work is to change one of the underscores to a dash:

❯ lgtv stue setTVChannel 3-9_17_17_4_7227_70
DEBUG:root:{'id': '0', 'type': 'request', 'uri': 'ssap://tv/openChannel', 'payload': '{"channelId": "3-9_17_17_4_7227_70"}'}

[klattimer]

Thanks for this bug report, I honestly have the opinion (and I've looked it through about a dozen times), that this is entirely LG's fault. In API terms, having a value intended to be sent back in a different form that it was provided is just absurd. I imagine they have a "reason" and I suspect it's laziness.

[klattimer]

That's not to say I won't accept a pull request - if someone wants to make one - it should be as simple as modifying the set channel method to strip the - characters out. str.replace('-', '')

[rogual]

It looks like the underscores are being stripped out by parseargs in __init__.py. It calls int on the argument to see if it's a number, but Python's int is quite permissive:

>>> int('1_2_3')
123

[Tone866]

It looks like the underscores are being stripped out by parseargs in __init__.py. It calls int on the argument to see if it's a number, but Python's int is quite permissive:

>>> int('1_2_3')
123

Thanks for your workaround, it worked for me for me long time, but now I had to new install the program and the fix seems to be no longer working.
Do you have an idea what could be the issue now?

[TheRoam]

Hi, I just faced the same issue. The underscores are still being stripped, so you need to fake the string to make it a more evident string, like concatenating some of its elements with separate string. E.g.:

lgtv myTv setTVChannel "1"+"_22_2_0_1016_578_8916"

That worked for me!

[clownbreath]

My solution works, if the command is setTVChannel skip the changing to int type

if command == "setTVChannel":
    # ILB
else:
    f = int(argv[i])
    argv[i] = f

file: lib64/python3.10/site-packages/LGTV/init.py
function: parseargs()
line: ~45

[klattimer]

Can you make this a PR?

[clownbreath]

I don't know what that is. I have had a sheltered career of working on projects with myself or a crack team that handled GIT.

If you tell me what to do I'll be happy to do it.

[klattimer]

Meh, it's easy.

Hit the fork button - then you'll have a copy of the repository in your repositories.

Change the file or files you want to merge into the project.

Commit, push, then a create pull request button will appear for you, press it, fill out the form and you're good. Then I'll check it here, press the merge button, and you earn a merit badge from GitHub :)

[clownbreath]

I'll do it. As soon as I'm able to get all the other functions to work. Can't have regression tests yet. I can use pause/play/stop but can't send buttons like ENTER or LEFT.

I can start Youtube videos. Lot's of functionality left to verify.

[clownbreath]

I can add a little bash testing script as well if you'd like

[clownbreath]

Done :)