I have started working with Adobe’s Open Source Media Framework. To get started I hunted down some examples to see how others dove into it – and found a few great ones, but most that relied on previous sprints. As you may or may not know, OSMF is still in prerelease which means that anything could change, and for traits that is exactly what happened between sprint 7 and sprint 8.
This change (along with some others) made many of the examples that i found not work – including a good one from @lisamarienyc on the adobe forums that I thought was best.
So I rewrote some portions and the resulting code is below:
questions, corrections, comments, and suggestions welcome.
package {
import flash.display.Sprite;
import org.osmf.events.LoadEvent;
import org.osmf.events.MediaError;
import org.osmf.events.MediaErrorEvent;
import org.osmf.events.MediaErrorCodes;
import org.osmf.events.MediaPlayerCapabilityChangeEvent;
import org.osmf.media.MediaPlayer;
import org.osmf.media.URLResource;
import org.osmf.net.NetLoader;
import org.osmf.traits.LoadState;
import org.osmf.traits.MediaTraitType;
import org.osmf.video.VideoElement;
import org.osmf.utils.URL;
public class OSMFExampleTwo extends Sprite {
//our local flv to be played
private const PROGRESSIVE:String = "trailer.flv"; //path to your progressive flv here
private var _player:MediaPlayer;
private var _video:VideoElement;
public function OSMFExampleTwo() {
trace("initialized");
//create a new media player
_player = new MediaPlayer();
_video = new VideoElement(new NetLoader(), new URLResource(new URL(PROGRESSIVE)));
//add an event listener to the video element to catch netstream failed errors
_video.addEventListener(MediaErrorEvent.MEDIA_ERROR, onLoadEvent);
//add an event listener so that when the player is capable of being viewed we can add it to the display list and watch
_player.addEventListener( MediaPlayerCapabilityChangeEvent.VIEWABLE_CHANGE, onViewable );
//add a new video element to the player
_player.element = _video;
}
//if the event fails - what comes through:
private function onLoadEvent( e:MediaErrorEvent) :void {
trace('ERROR (onLoadEvent): recieved a media error event');
var errorCode = e.error.errorCode;
switch (errorCode) {
case MediaErrorCodes.STREAM_NOT_FOUND:
trace('ERROR (onLoadEvent): there was an error finding the file that was specified');
break;
case MediaErrorCodes.PLAY_FAILED:
trace('ERROR (onLoadEvent): playback has failed');
break;
case MediaErrorCodes.NO_SUPPORTED_TRACK_FOUND:
trace('ERROR (onLoadEvent): there was no supported track found');
break;
case MediaErrorCodes.FILE_STRUCTURE_INVALID:
trace('ERROR (onLoadEvent): the file structure is invalid');
break;
}
}
private function onViewable( e:MediaPlayerCapabilityChangeEvent ) :void {
if( e.enabled ) {
addChild( _player.view );
trace('player view');
}
}
}
}
