[VideoConference] Check how many people are on camera

[RiccardoNL]

Hi all,

I'm playing around with the VideoConference sample. Is there a way to check how many people are on camera?
I see every liveCast gets an id. My goal is to prevent users from starting broadcasting, as soon as there are 8 people on cam. I tried something like this in VideoConference.as:

Code: Select all

	if(!videoContainer.contains(liveCast.8)
  {
   bt_joinConf.enabled = false;
	bt_leaveConf.enabled = true;
  }

Am I on the right track? I think I'm overlooking something..

Riccardo

[Bax]

You can use the AVCastManager.getAvailableCasts() method. The list of LiveCast objects returned can be used to determine how many users are sending their stream in the current Room.

[RiccardoNL]

Hi Bax,

Thank you for your reply. The aim is to check if there are 8 users on cam. If there are 8 users broadcasting, I want the JoinConference button to be inactive.
How can I let it check there are 8 people on cam? Through getAvailableCasts I only get DisplayObject errors..

Riccardo

[Bax]

DId you check the API documentation of that method? It returns an array of object, one for each active stream. If the list contains 8 items, then 8 users are on cam.

[RiccardoNL]

Hi Bax,

I checked it and used it in my code. But now the length of getAvailableCasts is always 0. And yes, I joined the room already.

This is the code I used:

Code: Select all

public function onLiveCastPublished(evt:RedBoxCastEvent):void
{
	var liveCast:LiveCast = evt.params.liveCast;
	
	trace ("User " + liveCast.username + " published his live cast");
	
	// Subscribe live cast and add to video container
	addLiveCast(liveCast);
	countcasts();
}

Code: Select all

public function countcasts():void
{
	// Retrieve live casts
	var castsArray:Array = avCastMan.getAvailableCasts(); 
		trace("LENGTH :", castsArray.length);
	}

Even if I trace it like: trace("LENGTH :", avCastMan.getAvailableCasts().length); - the length is always 0.

[Bax]

I'm sorry, I made a mistake. The array returned by the avCastMan.getAvailableCasts() method is an associative array, which means that the length property doesn't work.
You have to run a for-loop and count the items, like this:

Code: Select all

var cnt:int = 0;
for each (var lc:LiveCast in castsArray)
   cnt++;

[RiccardoNL]

Bax,

That did the trick . Thank you so much for helping me out and you incredible patience with me.

Riccardo