Hello there, I'm developing a game that uses a lot of video resources, so I created this little guy here.
It plays the video for the first time, then caches the images into different textures (a whole video wont fit into a single texture) and plays as a MovieClip, which is much lighter. I'm pretty sure there might be a bunch of improvements to be done, so i'd really appreciate your opinions about it, hope it helps
package display { import flash.display.BitmapData; import flash.events.NetStatusEvent; import flash.geom.Point; import flash.media.Video; import flash.net.NetConnection; import flash.net.NetStream; import flash.utils.Dictionary; import starling.core.Starling; import starling.display.DisplayObject; import starling.display.Image; import starling.display.MovieClip; import starling.display.Sprite; import starling.events.Event; import starling.textures.Texture; import starling.textures.TextureAtlas; public class VideoPlayer extends Sprite { private var path:String; private const VIDEO_FINISHED:String = "NetStream.Play.Stop"; private const VIDEO_NOT_FOUND:String = "NetStream.Play.StreamNotFound"; /*== Video Loading==*/ private var nc:NetConnection; private var ns:NetStream; /*== Video Holder ==*/ private var video:Video; private var videoImage:Image; private var bmd:BitmapData; /*== Video Lists ==*/ private var currentPath:String; private var videosList:Dictionary = new Dictionary(); private var tmpVector:Vector.<Texture>; /*== Video Properties ==*/ private var size:Point; private var position:Point; private var fps:int; private var callback:Function; /*== Play Properties ==*/ private var loop:Boolean; public function VideoPlayer(size:Point, position:Point, fps:int = 30) { this.size = size; this.position = position; this.loop = loop; this.fps = fps; bootstrap(); } private function onVideoComplete(e:Event):void { if(callback != null){ callback(); } } private function bootstrap():void { nc = new NetConnection(); nc.connect(null); //local files ns = new NetStream(nc); ns.client = { NetStatusEvent : onPlayStatus }; ns.addEventListener(NetStatusEvent.NET_STATUS, onPlayStatus); video = new Video(); video.attachNetStream(ns); } public function play(path:String, loop:Boolean = true, callback:Function = null):void { this.loop = loop; this.currentPath = path; if(callback != null){ this.callback = callback; } if(videosList[currentPath]){ showMovieClip(); return; } addEventListener(Event.ENTER_FRAME, onFrame); ns.play(path); setupVideoImageCarrier(); //Register for caching. Dont put it into dictionary until all frames were populated tmpVector = new Vector.<Texture>(); } public function stop(cleanup:Boolean = false):void { ns.close(); onVideoComplete(null); removeEventListener(Event.ENTER_FRAME, onFrame); if(cleanup){ removeChildren(0, -1, true); } } /*== Alias Methods ==*/ private function setupVideoImageCarrier():void { bmd = new BitmapData(video.width, video.height, true, 0x000000); bmd.draw(video); videoImage = new Image(Texture.fromBitmapData(bmd)); videoImage.x = position.x; videoImage.y = position.y; videoImage.width = size.x; videoImage.height = size.y; addChild(videoImage); } private function onFrame(e:Event):void { //takes screenshot of the current frame if(!bmd){ bmd = new BitmapData(video.width, video.height, true, 0x000000); } bmd.draw(video); var texture:Texture = Texture.fromBitmapData(bmd); videoImage.texture = texture; createFrameAtlas(texture); } private function onPlayStatus(e:NetStatusEvent):void { if(e.info.code == VIDEO_NOT_FOUND){ stop(true); throw new Error("Video not found at:"+ this.currentPath); } if(e.info.code == VIDEO_FINISHED){ videosList[currentPath] = tmpVector; stop(); if(loop){ showMovieClip(); } } } private function createFrameAtlas(texture:Texture):void { var diff:Object = bmd.compare(new BitmapData(video.width, video.height, true, 0x000000)); //No blank frames, prevent flickering if(diff == 0){ return; } var cTexture:Texture = texture; tmpVector.push(cTexture); } private function showMovieClip():void { removeChildren(); var cachedVideo:MovieClip = new MovieClip(videosList[currentPath], this.fps); cachedVideo.loop = this.loop; cachedVideo.x = position.x; cachedVideo.y = position.y; cachedVideo.width = size.x; cachedVideo.height = size.y; cachedVideo.addEventListener(Event.COMPLETE, onVideoComplete); addChild(cachedVideo); Starling.current.juggler.add(cachedVideo); } } }
