/**
   * Notifies this <tt>Conference</tt> that the ordered list of <tt>Endpoint</tt>s of {@link
   * #speechActivity} i.e. the dominant speaker history has changed.
   *
   * <p>This instance notifies the video <tt>Channel</tt>s about the change so that they may update
   * their last-n lists and report to this instance which <tt>Endpoint</tt>s are to be asked for
   * video keyframes.
   */
  private void speechActivityEndpointsChanged() {
    List<Endpoint> endpoints = null;

    for (Content content : getContents()) {
      if (MediaType.VIDEO.equals(content.getMediaType())) {
        Set<Endpoint> endpointsToAskForKeyframes = null;

        endpoints = speechActivity.getEndpoints();
        for (Channel channel : content.getChannels()) {
          if (!(channel instanceof RtpChannel)) continue;

          RtpChannel rtpChannel = (RtpChannel) channel;
          List<Endpoint> channelEndpointsToAskForKeyframes =
              rtpChannel.speechActivityEndpointsChanged(endpoints);

          if ((channelEndpointsToAskForKeyframes != null)
              && !channelEndpointsToAskForKeyframes.isEmpty()) {
            if (endpointsToAskForKeyframes == null) {
              endpointsToAskForKeyframes = new HashSet<>();
            }
            endpointsToAskForKeyframes.addAll(channelEndpointsToAskForKeyframes);
          }
        }

        if ((endpointsToAskForKeyframes != null) && !endpointsToAskForKeyframes.isEmpty()) {
          content.askForKeyframes(endpointsToAskForKeyframes);
        }
      }
    }
  }
Ejemplo n.º 2
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  /**
   * Adds <tt>listener</tt> to the list of {@link CapsVerListener}s that we notify when new features
   * occur and the version hash needs to be regenerated. The method would also notify
   * <tt>listener</tt> if our current caps version has been generated and is different than
   * <tt>null</tt>.
   *
   * @param listener the {@link CapsVerListener} we'd like to register.
   */
  public void addCapsVerListener(CapsVerListener listener) {
    synchronized (capsVerListeners) {
      if (capsVerListeners.contains(listener)) return;

      capsVerListeners.add(listener);

      if (currentCapsVersion != null) listener.capsVerUpdated(currentCapsVersion);
    }
  }
Ejemplo n.º 3
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 /**
  * Removes <tt>listener</tt> from the list of currently registered {@link CapsVerListener}s.
  *
  * @param listener the {@link CapsVerListener} we'd like to unregister.
  */
 public void removeCapsVerListener(CapsVerListener listener) {
   synchronized (capsVerListeners) {
     capsVerListeners.remove(listener);
   }
 }