/** * 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); } } } }
/** * Return a set of all items with type CNAME from the RTCP SDES packet <tt>pkt</tt>. * * @param pkt the packet to parse for CNAME items. * @retur a set of all items with type CNAME from the RTCP SDES packet <tt>pkt</tt>. */ private Set<CNAMEItem> getCnameItems(RawPacket pkt) { Set<CNAMEItem> ret = new HashSet<CNAMEItem>(); byte[] buf = pkt.getBuffer(); int off = pkt.getOffset(); int len = pkt.getLength(); // first item int ptr = 4; while (ptr + 6 < len) // an item is at least 6B: 4B ssrc, 1B type, 1B len { int type = buf[off + ptr + 4]; int len2 = buf[off + ptr + 5]; if (ptr + 6 + len2 >= len) // not enough buffer for the whole item break; if (type == 1) // CNAME { CNAMEItem item = new CNAMEItem(); item.ssrc = readUnsignedIntAsLong(buf, off + ptr); item.cname = readString(buf, off + ptr + 6, len2); ret.add(item); } ptr += 6 + len2; } return ret; }
private void handleRtpPacket(RawPacket pkt) { if (pkt != null && pkt.getPayloadType() == vp8PayloadType) { int ssrc = pkt.getSSRC(); if (!activeVideoSsrcs.contains(ssrc & 0xffffffffL)) { synchronized (activeVideoSsrcs) { if (!activeVideoSsrcs.contains(ssrc & 0xffffffffL)) { activeVideoSsrcs.add(ssrc & 0xffffffffL); rtcpFeedbackSender.sendFIR(ssrc); } } } } }
private void nudge() { for (Iterator<RecorderEvent> iter = pendingEvents.iterator(); iter.hasNext(); ) { RecorderEvent ev = iter.next(); long instant = getSynchronizer().getLocalTime(ev.getSsrc(), ev.getRtpTimestamp()); if (instant != -1) { iter.remove(); ev.setInstant(instant); handler.handleEvent(ev); } } }
@Override public boolean handleEvent(RecorderEvent ev) { if (ev == null) return true; if (RecorderEvent.Type.RECORDING_STARTED.equals(ev.getType())) { long instant = getSynchronizer().getLocalTime(ev.getSsrc(), ev.getRtpTimestamp()); if (instant != -1) { ev.setInstant(instant); return handler.handleEvent(ev); } else { pendingEvents.add(ev); return true; } } return handler.handleEvent(ev); }