/**
   * Initializes the pipeline itself, but does not start capturing
   *
   * @param devices The list of devices to capture from.
   * @param confidence True to enable confidence monitoring.
   * @return The created {@code Pipeline}, or null in the case of an error.
   */
  private Pipeline startPipeline(ArrayList<CaptureDevice> devices, boolean confidence) {
    logger.info("Successfully initialised {} devices.", devices.size());
    for (int i = 0; i < devices.size(); i++) logger.debug("Device #{}: {}.", i, devices.get(i));

    // setup gstreamer pipeline using capture devices
    Gst.init(); // cannot using gst library without first initialising it

    Pipeline pipeline = new Pipeline();
    for (CaptureDevice c : devices) {
      if (!addCaptureDeviceBinsToPipeline(c, pipeline))
        logger.error("Failed to create pipeline for {}.", c);
    }

    pipeline.debugToDotFile(Pipeline.DEBUG_GRAPH_SHOW_ALL, pipeline.getName());
    return pipeline;
  }
  /**
   * Creates the gStreamer pipeline and blocks until it starts successfully
   *
   * @param newRec The RecordingImpl of the capture we wish to perform.
   * @return The recording ID (equal to newRec.getID()) or null in the case of an error
   */
  public void start(RecordingImpl newRec) {
    // Create the pipeline
    try {
      pipeline = create(newRec.getProperties(), false);
    } catch (UnsatisfiedLinkError e) {
      throw new UnableToStartCaptureException(
          e.getMessage() + " : please add libjv4linfo.so to /usr/lib to correct this issue.");
    }

    // Check if the pipeline came up ok
    if (pipeline == null) {
      // logger.error("Capture {} could not start, pipeline was null!", newRec.getID());
      captureFailureHandler.resetOnFailure(newRec.getID());
      throw new UnableToStartCaptureException(
          "Capture " + newRec.getID() + " could not start, pipeline was null!");
    }

    logger.info("Initializing devices for capture.");

    hookUpBus();

    // Grab time to wait for pipeline to start
    int wait;
    String waitProp = newRec.getProperty(CaptureParameters.CAPTURE_START_WAIT);
    if (waitProp != null) {
      wait = Integer.parseInt(waitProp);
    } else {
      wait = 5; // Default taken from gstreamer docs
    }

    pipeline.debugToDotFile(Pipeline.DEBUG_GRAPH_SHOW_ALL, pipeline.getName());
    // Try and start the pipeline
    pipeline.play();
    if (pipeline.getState(wait * GStreamerPipeline.GST_SECOND) != State.PLAYING) {
      // In case of an error call stop to clean up the pipeline.
      logger.debug("Pipeline was unable to start after " + wait + " seconds.");
      stop(GStreamerPipeline.DEFAULT_PIPELINE_SHUTDOWN_TIMEOUT);
      throw new UnableToStartCaptureException(
          "Unable to start pipeline after " + wait + " seconds.  Aborting!");
    }
    logger.info("{} started.", pipeline.getName());
  }
Пример #3
-10
  private static void startStreaming(final VideoComponent vc, String settings, int port) {
    Gst.init();
    clientPipe = new Pipeline("pipeline");
    pushLog("> CTRL: " + "PLAY");
    pushLog("> SYS: " + " INIT STREAM");

    System.out.println("Starting with: C=" + clientLoc + ", S=" + serverLoc);

    // VIDEO
    Element udpVideoSrc = ElementFactory.make("udpsrc", "src1");
    udpVideoSrc.setCaps(
        Caps.fromString(
            "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)JPEG, payload=(int)96, ssrc=(uint)2156703816, clock-base=(uint)1678649553, seqnum-base=(uint)31324"));
    udpVideoSrc.set("uri", "udp://" + clientLoc + ":" + port);

    Element videoRtcpIn = ElementFactory.make("udpsrc", "src3");
    videoRtcpIn.set("uri", "udp://" + clientLoc + ":" + (port + 1));

    Element videoRtcpOut = ElementFactory.make("udpsink", "snk1");
    videoRtcpOut.set("host", serverLoc);
    videoRtcpOut.set("port", "" + (port + 5));
    videoRtcpOut.set("sync", "false");
    videoRtcpOut.set("async", "false");

    Element udpAudioSrc = null, audioRtcpIn = null, audioRtcpOut = null, taud = null;

    if (attribute.equalsIgnoreCase("active")) {
      // AUDIO
      udpAudioSrc = ElementFactory.make("udpsrc", "src2");
      udpAudioSrc.setCaps(
          Caps.fromString(
              "application/x-rtp, media=(string)audio, clock-rate=(int)8000, encoding-name=(string)L16, encoding-params=(string)2, channels=(int)2, payload=(int)96, ssrc=(uint)3489550614, clock-base=(uint)2613725642, seqnum-base=(uint)1704"));
      udpAudioSrc.set("uri", "udp://" + clientLoc + ":" + (port + 2));

      taud = ElementFactory.make("tee", "taud");
      Element qaud = ElementFactory.make("queue", "qaud");
      AppSink appAudioSink = (AppSink) ElementFactory.make("appsink", "appAudioSink");
      appAudioSink.set("emit-signals", true);
      appAudioSink.setSync(false);
      audioQ = new LinkedList<FrameInfo>();
      appAudioSink.connect(
          new AppSink.NEW_BUFFER() {
            public void newBuffer(AppSink sink) {
              Buffer b = sink.getLastBuffer();
              if (b != null) {
                audioQ.offer(new FrameInfo(System.currentTimeMillis(), b.getSize()));
              }
            }
          });

      audioRtcpIn = ElementFactory.make("udpsrc", "src4");
      audioRtcpIn.set("uri", "udp://" + clientLoc + ":" + (port + 3));

      audioRtcpOut = ElementFactory.make("udpsink", "snk2");
      audioRtcpOut.set("host", serverLoc);
      audioRtcpOut.set("port", "" + (port + 7));
      audioRtcpOut.set("sync", "false");
      audioRtcpOut.set("async", "false");

      clientPipe.addMany(taud, qaud, appAudioSink);
      clientPipe.addMany(udpAudioSrc, audioRtcpIn, audioRtcpOut);
      Element.linkMany(udpAudioSrc, taud, qaud, appAudioSink);
    }

    Element tvid = ElementFactory.make("tee", "tvid");
    Element qvid = ElementFactory.make("queue", "qvid");
    AppSink appVideoSink = (AppSink) ElementFactory.make("appsink", "appVideoSink");
    appVideoSink.set("emit-signals", true);
    appVideoSink.setSync(false);
    videoQ = new LinkedList<FrameInfo>();
    appVideoSink.connect(
        new AppSink.NEW_BUFFER() {
          public void newBuffer(AppSink sink) {
            Buffer b = sink.getLastBuffer();
            if (b != null) {
              videoQ.offer(new FrameInfo(System.currentTimeMillis(), b.getSize()));
              // System.out.println(System.currentTimeMillis());
            }
          }
        });
    clientPipe.addMany(tvid, qvid, appVideoSink);
    clientPipe.addMany(udpVideoSrc, videoRtcpIn, videoRtcpOut);
    Element.linkMany(udpVideoSrc, tvid, qvid, appVideoSink);

    // VIDEO BIN

    videoBin = new Bin("videoBin");

    // src1
    Element videoDepay = ElementFactory.make("rtpjpegdepay", "depay");
    Element videoDecode = ElementFactory.make("jpegdec", "decode");
    Element videoRate = ElementFactory.make("videorate", "rate1");
    Element videoColor = ElementFactory.make("ffmpegcolorspace", "color");
    Element videoSrc1Caps = ElementFactory.make("capsfilter", "src1caps");
    videoSrc1Caps.setCaps(Caps.fromString("video/x-raw-yuv, framerate=30/1"));
    Element videoColor2 = ElementFactory.make("ffmpegcolorspace", "color2");

    videoBin.addMany(videoDepay, videoDecode, videoRate, videoColor, videoSrc1Caps, videoColor2);
    Element.linkMany(videoDepay, videoDecode, videoRate, videoColor, videoSrc1Caps, videoColor2);

    videoBin.addPad(new GhostPad("sink", videoDepay.getStaticPad("sink")));
    clientPipe.add(videoBin);

    final Bin audioBin = new Bin("audioBin");

    if (attribute.equalsIgnoreCase("active")) {
      // AUDIO BIN

      final Element audioDepay = ElementFactory.make("rtpL16depay", "auddepay");
      Element audioConvert = ElementFactory.make("audioconvert", "audconv");
      mute = ElementFactory.make("volume", "vol");
      mute.set("mute", "true");
      final Element audioSink = ElementFactory.make("autoaudiosink", "audsink");

      audioBin.addMany(audioDepay, audioConvert, mute, audioSink);
      Element.linkMany(audioDepay, audioConvert, mute, audioSink);

      audioBin.addPad(new GhostPad("sink", audioDepay.getStaticPad("sink")));
      clientPipe.add(audioBin);
    }

    // RTPBIN

    final RTPBin rtp = new RTPBin("rtp");
    clientPipe.add(rtp);

    Element.linkPads(tvid, "src1", rtp, "recv_rtp_sink_0");
    Element.linkPads(videoRtcpIn, "src", rtp, "recv_rtcp_sink_0");
    Element.linkPads(rtp, "send_rtcp_src_0", videoRtcpOut, "sink");

    if (attribute.equalsIgnoreCase("active")) {
      Element.linkPads(taud, "src1", rtp, "recv_rtp_sink_1");
      Element.linkPads(audioRtcpIn, "src", rtp, "recv_rtcp_sink_1");
      Element.linkPads(rtp, "send_rtcp_src_1", audioRtcpOut, "sink");
    }

    // BUS

    rtp.connect(
        new Element.PAD_ADDED() {
          @Override
          public void padAdded(Element arg0, Pad arg1) {
            if (arg1.getName().startsWith("recv_rtp_src_0")) {
              arg1.link(videoBin.getStaticPad("sink"));
            } else if (arg1.getName().startsWith("recv_rtp_src_1")
                && attribute.equalsIgnoreCase("active")) {
              arg1.link(audioBin.getStaticPad("sink"));
            }
            clientPipe.debugToDotFile(1, "clientsucc");
          }
        });

    Bus bus = clientPipe.getBus();

    bus.connect(
        new Bus.ERROR() {
          public void errorMessage(GstObject source, int code, String message) {
            pushLog("> GSTREAMER ERROR: code=" + code + " message=" + message);
            clientPipe.debugToDotFile(1, "clienterr");
          }
        });
    bus.connect(
        new Bus.EOS() {

          public void endOfStream(GstObject source) {
            clientPipe.setState(State.NULL);
            System.out.println("EOS");
          }
        });

    videoBin.add(vc.getElement());

    AppSink appJointSink = (AppSink) ElementFactory.make("appsink", "appJointSink");
    appJointSink.set("emit-signals", true);
    appJointSink.setSync(false);
    jointQ = new LinkedList<CompareInfo>();
    appJointSink.connect(
        new AppSink.NEW_BUFFER() {
          public void newBuffer(AppSink sink) {
            /*
            int vs = 0; int as = 0;
            while (videoQ != null) {
            	vs++; videoQ.poll();
            }
            while (audioQ != null) {
            	as++; audioQ.poll();
            }
            System.out.println("Compare: " + as + " : " + vs);
            */
          }
        });

    Element.linkMany(videoColor2, vc.getElement());

    Thread videoThread =
        new Thread() {
          public void run() {
            clientPipe.setState(org.gstreamer.State.PLAYING);
          }
        };
    videoThread.start();
    clientPipe.debugToDotFile(0, "appsink");
  }