示例#1
0
 private void handleException(Exception e) {
   if (INTERRUPTED_EXCEPTION_TYPES.contains(e.getClass())) {
     LOG.info("Changes feed was interrupted");
   } else {
     LOG.error("Caught exception while listening to changes feed:", e);
   }
 }
  /**
   * Iterate through all the <tt>ReceiveStream</tt>s that this <tt>MediaStream</tt> has and make
   * <tt>RTCPReportBlock</tt>s for all of them.
   *
   * @param time
   * @return
   */
  private RTCPReportBlock[] makeRTCPReportBlocks(long time) {
    MediaStream stream = getStream();
    // State validation.
    if (stream == null) {
      logger.warn("stream is null.");
      return MIN_RTCP_REPORTS_BLOCKS_ARRAY;
    }

    StreamRTPManager streamRTPManager = stream.getStreamRTPManager();
    if (streamRTPManager == null) {
      logger.warn("streamRTPManager is null.");
      return MIN_RTCP_REPORTS_BLOCKS_ARRAY;
    }

    Collection<ReceiveStream> receiveStreams = streamRTPManager.getReceiveStreams();

    if (receiveStreams == null || receiveStreams.size() == 0) {
      logger.info("There are no receive streams to build report " + "blocks for.");
      return MIN_RTCP_REPORTS_BLOCKS_ARRAY;
    }

    SSRCCache cache = streamRTPManager.getSSRCCache();
    if (cache == null) {
      logger.info("cache is null.");
      return MIN_RTCP_REPORTS_BLOCKS_ARRAY;
    }

    // Create the return object.
    Collection<RTCPReportBlock> rtcpReportBlocks = new ArrayList<RTCPReportBlock>();

    // Populate the return object.
    for (ReceiveStream receiveStream : receiveStreams) {
      // Dig into the guts of FMJ and get the stats for the current
      // receiveStream.
      SSRCInfo info = cache.cache.get((int) receiveStream.getSSRC());

      if (!info.ours && info.sender) {
        RTCPReportBlock rtcpReportBlock = info.makeReceiverReport(time);
        rtcpReportBlocks.add(rtcpReportBlock);
      }
    }

    return rtcpReportBlocks.toArray(new RTCPReportBlock[rtcpReportBlocks.size()]);
  }
示例#3
0
 private void handleResquest(String s) {
   Logger.info("@ClientMediator.handleResquest id=" + _id + " :s=" + s);
   if (s.indexOf("sync") > -1) {
     tellClient("sync " + s.split(" ")[1], 0);
   } else if (s.indexOf("get-status") > -1) {
     Integer[] ts = (Integer[]) tankStateProxy().getTanks();
     Logger.debug("ClientMediator.handleResquest: ts.len=" + ts.length);
     for (int i = 0; i < ts.length; i++) {
       ClientMediator cm =
           (ClientMediator) appFacade().retrieveMediator(Const.CLIENT_MEDIATOR + ts[i].intValue());
       TankState t = cm.getState();
       if (t == null || cm.destroyd) continue;
       tellClient(
           "create tank "
               + t.tankID
               + " "
               + t.tankName
               + " 0 0 "
               + t.life
               + " 500 "
               + t.x
               + " "
               + t.y
               + " "
               + cm.getTankAngle()
               + " "
               + cm.getGunAngle(),
           0);
     }
   } else if (s.indexOf("born") > -1) {
     if (_state == null) Arena.addReq(_id, s, null);
   } else if (s.indexOf("move-to") > -1) {
     if (_state != null) {
       Arena.addReq(_id, s, getState());
     }
   } else if (s.indexOf("rotate-to") > -1) { // rotate gun
     if (_state != null) {
       Arena.addReq(_id, s, getState());
     }
   } else if (s.indexOf("shoot") > -1) {
     if (_state != null) {
       Arena.addReq(_id, s, getState());
     }
   } else if (s.indexOf("talk") > -1) {
     if (_state != null) s = "talk " + _state.tankName + " say: " + s.substring(5);
     this.sendNotification(Const.BROAD_CAST, s, null);
   }
 }
示例#4
0
 public void run() {
   try {
     String line = reader.readLine();
     while (shouldRun && line != null) {
       if (line.length() > 0) {
         handleChange(line);
       } else {
         handleHeartbeat();
       }
       line = reader.readLine();
     }
     String reason = !shouldRun ? "Cancelled" : "EOF";
     LOG.info("Changes feed stopped. Reason: " + reason);
   } catch (Exception e) {
     handleException(e);
   } finally {
     sendInterruptMarker();
     httpResponse.abort();
     try {
       reader.close();
     } catch (IOException e) {
     }
   }
 }
示例#5
0
  /** {@inheritDoc} */
  @Override
  protected int doProcess(Buffer inBuffer, Buffer outBuffer) {
    byte[] inData = (byte[]) inBuffer.getData();
    int inOffset = inBuffer.getOffset();

    if (!VP8PayloadDescriptor.isValid(inData, inOffset)) {
      logger.warn("Invalid RTP/VP8 packet discarded.");
      outBuffer.setDiscard(true);
      return BUFFER_PROCESSED_FAILED; // XXX: FAILED or OK?
    }

    long inSeq = inBuffer.getSequenceNumber();
    long inRtpTimestamp = inBuffer.getRtpTimeStamp();
    int inPictureId = VP8PayloadDescriptor.getPictureId(inData, inOffset);
    boolean inMarker = (inBuffer.getFlags() & Buffer.FLAG_RTP_MARKER) != 0;
    boolean inIsStartOfFrame = VP8PayloadDescriptor.isStartOfFrame(inData, inOffset);
    int inLength = inBuffer.getLength();
    int inPdSize = VP8PayloadDescriptor.getSize(inData, inOffset);
    int inPayloadLength = inLength - inPdSize;

    if (empty && lastSentSeq != -1 && seqNumComparator.compare(inSeq, lastSentSeq) != 1) {
      if (logger.isInfoEnabled()) logger.info("Discarding old packet (while empty) " + inSeq);
      outBuffer.setDiscard(true);
      return BUFFER_PROCESSED_OK;
    }

    if (!empty) {
      // if the incoming packet has a different PictureID or timestamp
      // than those of the current frame, then it belongs to a different
      // frame.
      if ((inPictureId != -1 && pictureId != -1 && inPictureId != pictureId)
          | (timestamp != -1 && inRtpTimestamp != -1 && inRtpTimestamp != timestamp)) {
        if (seqNumComparator.compare(inSeq, firstSeq) != 1) // inSeq <= firstSeq
        {
          // the packet belongs to a previous frame. discard it
          if (logger.isInfoEnabled()) logger.info("Discarding old packet " + inSeq);
          outBuffer.setDiscard(true);
          return BUFFER_PROCESSED_OK;
        } else // inSeq > firstSeq (and also presumably isSeq > lastSeq)
        {
          // the packet belongs to a subsequent frame (to the one
          // currently being held). Drop the current frame.

          if (logger.isInfoEnabled())
            logger.info(
                "Discarding saved packets on arrival of"
                    + " a packet for a subsequent frame: "
                    + inSeq);

          // TODO: this would be the place to complain about the
          // not-well-received PictureID by sending a RTCP SLI or NACK.
          reinit();
        }
      }
    }

    // a whole frame in a single packet. avoid the extra copy to
    // this.data and output it immediately.
    if (empty && inMarker && inIsStartOfFrame) {
      byte[] outData = validateByteArraySize(outBuffer, inPayloadLength, false);
      System.arraycopy(inData, inOffset + inPdSize, outData, 0, inPayloadLength);
      outBuffer.setOffset(0);
      outBuffer.setLength(inPayloadLength);
      outBuffer.setRtpTimeStamp(inBuffer.getRtpTimeStamp());

      if (TRACE) logger.trace("Out PictureID=" + inPictureId);

      lastSentSeq = inSeq;

      return BUFFER_PROCESSED_OK;
    }

    // add to this.data
    Container container = free.poll();
    if (container == null) container = new Container();
    if (container.buf == null || container.buf.length < inPayloadLength)
      container.buf = new byte[inPayloadLength];

    if (data.get(inSeq) != null) {
      if (logger.isInfoEnabled())
        logger.info("(Probable) duplicate packet detected, discarding " + inSeq);
      outBuffer.setDiscard(true);
      return BUFFER_PROCESSED_OK;
    }

    System.arraycopy(inData, inOffset + inPdSize, container.buf, 0, inPayloadLength);
    container.len = inPayloadLength;
    data.put(inSeq, container);

    // update fields
    frameLength += inPayloadLength;
    if (firstSeq == -1 || (seqNumComparator.compare(firstSeq, inSeq) == 1)) firstSeq = inSeq;
    if (lastSeq == -1 || (seqNumComparator.compare(inSeq, lastSeq) == 1)) lastSeq = inSeq;

    if (empty) {
      // the first received packet for the current frame was just added
      empty = false;
      timestamp = inRtpTimestamp;
      pictureId = inPictureId;
    }

    if (inMarker) haveEnd = true;
    if (inIsStartOfFrame) haveStart = true;

    // check if we have a full frame
    if (frameComplete()) {
      byte[] outData = validateByteArraySize(outBuffer, frameLength, false);
      int ptr = 0;
      Container b;
      for (Map.Entry<Long, Container> entry : data.entrySet()) {
        b = entry.getValue();
        System.arraycopy(b.buf, 0, outData, ptr, b.len);
        ptr += b.len;
      }

      outBuffer.setOffset(0);
      outBuffer.setLength(frameLength);
      outBuffer.setRtpTimeStamp(inBuffer.getRtpTimeStamp());

      if (TRACE) logger.trace("Out PictureID=" + inPictureId);
      lastSentSeq = lastSeq;

      // prepare for the next frame
      reinit();

      return BUFFER_PROCESSED_OK;
    } else {
      // frame not complete yet
      outBuffer.setDiscard(true);
      return OUTPUT_BUFFER_NOT_FILLED;
    }
  }
示例#6
0
 /** {@inheritDoc} */
 @Override
 protected void doOpen() throws ResourceUnavailableException {
   if (logger.isInfoEnabled()) logger.info("Opened VP8 depacketizer");
 }
 private void logInfo(String msg) {
   if (logger.isInfoEnabled()) {
     msg = getSimulcastEngine().getVideoChannel().getEndpoint().getID() + ": " + msg;
     logger.info(msg);
   }
 }