datchannel in videoroom

[Srinivas Bakki]

Hi,

     I'm looking to register a publisher and subscriber with single datachannel between them. I enabled datachannel by uncommenting "tracks.push({type: 'data' }); " and for subscriber mode i set "subscriber-mode=true" in the query string. From the logs i see that they are both creating default data channel and when sending data from subscriber i get invalid PeerConnection. 'onopen' is triggered on both sides but 'ondatachannel' is not triggered. 

Am i doing this the right way or is there something else to be done for this ?

Thanks,

Srinivas

[Lorenzo Miniero]

Subscribers can't send data, only receive it. Datachannels are monodirectional in the VideoRoom.

L.

[Srinivas Bakki]

Oh, ok. Can i be publisher on both sides and communicate ?

[Lorenzo Miniero]

If you need a bidirectional channel, just use the TextRoom.

[Srinivas Bakki]

Thank you, i put in code to create textroom plugin handle. The data channels are being created on both the sides. When i send from one end i get errors on the same datachannel as below:

1. 2. MessageEvent {isTrusted: true, data: '{\n "textroom": "error",\n "error_code": 413,\n …ement (text)",\n "transaction": "jVuoMLGjuHbv"\n}', origin: '', lastEventId: '', source: null, …}

On Janus server i see below error:

[ERR] [plugins/janus_textroom.c:janus_textroom_handle_incoming_request:1463] Missing mandatory element (text)

The mesage i sent is as given in the example code :

var message = {

        textroom: "message",

        transaction: randomString(12),

        room: myroom,

        text: data,

    };

textroom.data({

        text: JSON.stringify(message),

        error: function(reason) { bootbox.alert(reason); },

        success: function() { console.log("Successfully sent data\r\n"); }

    });

[Lorenzo Miniero]

If it's complaining the "text" property isn't there, I guess the value of data in your first snippet is null or undefined.

L.

[Srinivas Bakki]

Thank you,  i did make some progress converting the data to string type. However i get this error  on janus:

Got a DataChannel message (82 bytes): {"textroom":"message","transaction":"tM87rIxIHUrB","room":3456,"text":"undefined"}
[ERR] [plugins/janus_textroom.c:janus_textroom_handle_incoming_request:1507] Not in room 3456
[2428673572326236] SCTP data to send (label=JanusDataChannel, 114 bytes) coming from a plugin.

I'm unable to understand how to join room - there is below code in textroomtest.js but there's no call to the plugin, how does it join the room ?

 var register = {
                textroom: "join",
                transaction: transaction,
                room: mytxtroom,
                username: mytxtid,

                display: username

  };

Thanks,

Srinivas

[Srinivas Bakki]

Sorry, i found that code.