audiobridge join / leave room errors

[anton...@gmail.com]

Hello,

I am running a janus 0.3.1 version and I have some strange behavior when trying to leave a dynamically created room on the audiobridge plugin.
Here is my scenario:

Alice start a session and a master handle into the audiobrdige and then she creates a room but she does not enter into the room.

//session
{"janus":"create","transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_0"}
{"janus":"success","transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_0","data":{"id":3823944542487956}}

//attaches the audiobrdige plugin
{"janus":"attach","transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_1","session_id":3823944542487956,"plugin":"janus.plugin.audiobridge"}
{"janus":"success","session_id":3823944542487956,"transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_1","data":{"id":4722054007529550}}

//creates a room
{"janus":"message","transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_2","session_id":3823944542487956,"handle_id":4722054007529550,"body":{"request":"create","room":114,"permanent":false,"description":"114","is_private":false,"sampling":16000,"audiolevel_ext":true,"audiolevel_event":true,"audio_active_packets":100,"audio_level_average":50}}

{"janus":"success","session_id":3823944542487956,"transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_2","sender":4722054007529550,"plugindata":{"plugin":"janus.plugin.audiobridge","data":{"audiobridge":"created","room":114,"permanent":false}}}

Then Bob creates his session and handle and enters the room:

//session
{"janus":"create","transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_51"}
{"janus":"success","transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_51","data":{"id":8780925604367168}}

// attaching to the plugin
{"janus":"attach","transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_52","session_id":8780925604367168,"plugin":"janus.plugin.audiobridge"}
{"janus":"success","session_id":8780925604367168,"transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_52","data":{"id":983121895993400}}

//joins the room
{"janus":"message","transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_55","session_id":8780925604367168,"handle_id":983121895993400,"body":{"request":"join","room":114,"id":3,"display":"","muted":false}}

{"janus":"event","session_id":8780925604367168,"transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_55","sender":983121895993400,"plugindata":{"plugin":"janus.plugin.audiobridge","data":{"audiobridge":"joined","room":114,"id":3,"participants":[]}}}

Then Bob leaves the room but unfortunately he gets an error:

{"janus":"message","transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_66","session_id":8780925604367168,"handle_id":983121895993400,"body":{"request":"leave"}}


{"janus":"event","session_id":8780925604367168,"transaction":"f4ace76c-5bd9-4c60-909c-b55a00f63532_66","sender":983121895993400,"plugindata":{"plugin":"janus.plugin.audiobridge","data":{"audiobridge":"event","error_code":487,"error":"Can't leave (not in a room)"}}}

Does anyone can try to reproduce the case ? Is it normal behavior ?
I noticed that when Alice and Bob are in the room, I do not have the error for Bob when he leaves it.

Thanks in advance for the replies :)

Best regard,
Anton

[Lorenzo Miniero]

You get a 487 when either the participant object doesn't exist, or when the participant's room property is NULL:

https://github.com/meetecho/janus-gateway/blob/master/plugins/janus_audiobridge.c#L3782

That property is set to NULL also when you hangup the PeerConnection, so in case that's what's happening, it might be that your leave arrives after the PeerConnection has already been closed. At any rate, it's not really an error, and you did indeed leave the room.

L.