Pomoc s upravou kodu v jave (Gstreamer-java) – Java – Fórum – Programujte.com

Dobry den, mohli by ste mi pomoct s touto castou kodu:

class VideoPlayer{

    

    private PlayBin player;

    private Element videosink;

    private Bus bus;

    

    public VideoPlayer(final Canvas can){

        Gst.init();

        

        this.player = new PlayBin("Player",new File("/path/to/videofile.avi").toURI());

        this.videosink = ElementFactory.make("xvimagesink", "dest");

        this.player.setVideoSink(videosink);

        this.bus = player.getBus();

       //Sem este treba dopisat kod pre prehravanie v Canvase pod Win 

        bus.setSyncHandler(new BusSyncHandler() {

                        public BusSyncReply syncMessage(Message msg) {

                            Structure s = msg.getStructure();

                            if (s == null || !s.hasName("prepare-xwindow-id"))

                                return BusSyncReply.PASS;

                            XOverlay.wrap(videosink).setWindowID(can);

                            return BusSyncReply.DROP;

                        }

                    });

        player.play();

        

    }

    

}



class VideoFrameCatcher{



        private BufferedImage currentImage = null;

        private PlayBin2 player = null;

        Semaphore sem;

        



        public VideoFrameCatcher() {

                Gst.init();

                player = new PlayBin2("VideoFrameCatcher");

                                

                player.setAudioSink(null);

                sem = new Semaphore(0);



                RGBDataSink.Listener listener1 = new RGBDataSink.Listener() {

                        public void rgbFrame(int w, int h, IntBuffer rgbPixels) {

                            

                                System.out.println("    -> Got a frame:");

                                currentImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_BGR);

                                currentImage.setRGB(0, 0, w, h, rgbPixels.array(), 0, w);

                                sem.release();

                                

                            

                        }

                };



                RGBDataSink videoSink = new RGBDataSink("rgb", listener1);

                player.setVideoSink(videoSink);

        }



        public void setInputVideoFile(File inputVideoFile) {

                player.setInputFile(inputVideoFile);

        }

        

        public BufferedImage CatchFrameAt(long time) throws InterruptedException{

            player.pause();

                 

                player.getState();

                player.seek(time, TimeUnit.MILLISECONDS);

                player.play();

                sem.acquire();

                player.pause();

                return this.currentImage;

        }



 }



class VideoController implements Runnable{

    ImageStack imgS;

    long step=60;

    VideoFrameCatcher vidCatch;

    private Thread vid;

    

    public VideoController(ImageStack imgS){

        this.vid = new Thread(this, "VideoThread");

        this.imgS = imgS;

        this.vid.start();

    }

    

    public VideoController(ImageStack imgS, long step){

        this.vid = new Thread(this, "VideoThread");

        this.imgS = imgS;

        this.step = step;

        this.vid.start();

    }

    

    public void run(){

        this.vidCatch = new VideoFrameCatcher();

        File videoFile = new File("/path/to/videofile.avi");

        this.vidCatch.setInputVideoFile(videoFile);

        int pos=0;

//Namiesto pos<12 tu bude nieco ako bin.EOS()

        while(pos<12){

            try {

                imgS.putImageToArray(vidCatch.CatchFrameAt(pos*step), pos*step);

            } catch (InterruptedException ex) {

                Logger.getLogger(VideoController.class.getName()).log(Level.SEVERE, null, ex);

            }

            pos++;

        }

        

    }

}

Elegance je zajímá až ve chvíli, kdy dosáhneš funkčnosti ... takže ... co ti nefunguje?

To liborb : Dobry den, no ono v podstate funguje vsetko ako ma, teda aspon zatial. Len ako ste si mohli vsimnut tak volam tri classy, kde vo dvoch z nich volam triedu PlayBin a do obi dvoch odosielam ten isty argument File. Tak by som chcel napr. namiesto troch classov vytvorit jeden a trocha to poupravovat nech to nie je take nepriehladne. Sice uz nieco mam ale stale to nie je ono.

Pokud to chceš udělat jako jednu třídu, tak to tak udělej. Tvůj kód jsem samozřejmě detailně nestudoval, tudíž mi nepřipadá nijak zvláštní.