Простой ответ
Вы не можете передать полный поток URL STREAMING_PATH этому методу:
loadTrait.connection.call ("getStreamLength", респондент, STREAMING_PATH);
Вам нужно использовать только имя потока, который указывает путь справа от экземпляра FMS
Так что, если URL (или connection.uri):
RTMP: //example.com: 80 / _myfms / mp3: / поток / имя / Foo
Вы хотите передать только имя потока, а не экземпляр сервера:
'Mp3: / поток / имя / Foo'
Сложный ответ (Расширить класс NetLoader):
package{
// You can extend the NetLoader class to have it automatically ask for duration
// and dispatch an event when it is received.
// This is a super simple, partial example, but the stub should get you going
// TODO: define imports here (omitted for example's sake)
class MyNetLoader extends NetLoader
{
// useful for adding an event listener outside
public static const GOT_STREAM_DURATION:String = "gotStreamDuration";
// constructor
public function MyNetLoader(factory:NetConnectionFactoryBase = null)
{
super( factory );
}
// override the parent method that creates the actual NetStream
override protected function createNetStream( connection:NetConnection, resource:URLResource) : NetStream
{
// usually you pass just the stream name, not the full uri
// there is likely a cleaner way to extract the stream name...
var streamName:String = resource.url.replace('rtmp://example.com:80/_myfms/', '');
// request duration from FMS
connection.call('getStreamLength', new Responder( this.onResult ), streamName);
return super.createNetStream(connection, resource);
}
// receives the getStreamLength callback from FMS
protected function onResult( info:Object ):void
{
_duration = Number(info) * 1000; // duration, in ms
dispatchEvent( new Event(GOT_STREAM_DURATION) );
trace('Duration is: ' + _duration);
}
// read-only getter for duration
public function get duration():uint
{
return _duration as uint;
}
}
}
Тогда в другом вашем коде:
...
// create the resource
var resource:URLResource = new URLResource('rtmp://example.com:80/_something/the/stream/name/foo');
// create your custom loader, adding a listener for the duration callback
var loader:MyNetLoader = new MyNetLoader();
// listen for the duration event
loader.addEventListner(MyNetLoader.GOT_STREAM_DURATION, function(event:Event):void{
trace('Got the duration outside: ' + (event.target as MyNetLoader).duration);
});
// I use an AudioElement here, but it could be any of the typed or generic elements
// as long as the constructor accepts (resource, loader)
// You dont want to use the factory to create the element, because (to my knowledge)
// you cant pass a custom loader to the factory (unless you extended it)
var myElement:AudioElement = new AudioElement( resource, loader );
// pass the element to the player. I dont pass to the constructor in this example because
// in most real-world cases, you would already have an instance of MediaPlayer
player = new MediaPlayer();
player.media = myElement;
...