<html>
<head>
<title></title>
<script>
function Block()
{
}
Block.prototype.input = function(data)
{
data = data.map(this.doWork.bind(this));
this.output(data);
}
Block.prototype.doWork = function(data)
{
return data;
}
Block.prototype.output = function(data)
{
if (this.connectedTo)
{
this.connectedTo.input(data);
}
}
Block.prototype.connect = function(out)
{
if (out && typeof out.input == "function")
{
this.connectedTo = out;
}
}
Block.prototype.connectedTo = null;
</script>
<script>
function Gstreamer()
{
}
Gstreamer.prototype = new Block();
Gstreamer.prototype.doWork = function(data)
{
return data * 2;
}
</script>
<script>
function DownMixer()
{
}
DownMixer.prototype = new Block();
DownMixer.prototype.doWork = function(data)
{
return data - 1;
}
</script>
<script>
function Filter1()
{
}
Filter1.prototype = new Block();
Filter1.prototype.input = function(data)
{
data = data.reduce(this.doWork.bind(this), []);
this.output(data);
}
Filter1.prototype.doWork = function(data, value, idx)
{
if (idx % 2)
{
data.push(value);
}
return data;
}
</script>
<script>
function Display()
{
}
Display.prototype = new Block();
Display.prototype.doWork = function(data)
{
console.log(data);
}
</script>
<script>
// main
var gs = new Gstreamer();
var dm = new DownMixer();
var f1 = new Filter1();
var d = new Display();
gs.connect(dm);
dm.connect(f1);
f1.connect(d);
//GstLaunch.stdout.on('data', gs.input.bind(gs));
gs.input([1,2,3,4,5,6,7,8,9]);
</script>
</head>
<body>
</body>
</html>
