/**
* {@inheritDoc}
*
* @param format unused, since this implementation records multiple streams using potentially
* different formats.
* @param dirname the path to the directory into which this <tt>Recorder</tt> will store the
* recorded media files.
*/
@Override
public void start(String format, String dirname) throws IOException, MediaException {
if (logger.isInfoEnabled()) logger.info("Starting, format=" + format + " " + hashCode());
path = dirname;
MediaService mediaService = LibJitsi.getMediaService();
/*
* Note that we use only one RTPConnector for both the RTPTranslator
* and the RTPManager instances. The this.translator will write to its
* output streams, and this.rtpManager will read from its input streams.
*/
rtpConnector = new RTPConnectorImpl(redPayloadType, ulpfecPayloadType);
rtpManager = RTPManager.newInstance();
/*
* Add the formats that we know about.
*/
rtpManager.addFormat(vp8RtpFormat, vp8PayloadType);
rtpManager.addFormat(opusFormat, opusPayloadType);
rtpManager.addReceiveStreamListener(this);
/*
* Note: When this.rtpManager sends RTCP sender/receiver reports, they
* will end up being written to its own input stream. This is not
* expected to cause problems, but might be something to keep an eye on.
*/
rtpManager.initialize(rtpConnector);
/*
* Register a fake call participant.
* TODO: can we use a more generic MediaStream here?
*/
streamRTPManager =
new StreamRTPManager(
mediaService.createMediaStream(
new MediaDeviceImpl(new CaptureDeviceInfo(), MediaType.VIDEO)),
translator);
streamRTPManager.initialize(rtpConnector);
rtcpFeedbackSender = translator.getRtcpFeedbackMessageSender();
translator.addFormat(streamRTPManager, opusFormat, opusPayloadType);
// ((RTPTranslatorImpl)videoRTPTranslator).addFormat(streamRTPManager, redFormat,
// redPayloadType);
// ((RTPTranslatorImpl)videoRTPTranslator).addFormat(streamRTPManager, ulpfecFormat,
// ulpfecPayloadType);
// ((RTPTranslatorImpl)videoRTPTranslator).addFormat(streamRTPManager,
// mediaFormatImpl.getFormat(), vp8PayloadType);
started = true;
}
/**
* Checks whether RTP packets from {@code sourceChannel} should be forwarded to {@link #channel}.
*
* @param sourceChannel the channel.
* @return {@code true} iff RTP packets from {@code sourceChannel} should be forwarded to {@link
* #channel}.
*/
public boolean isForwarded(Channel sourceChannel) {
if (lastN < 0 && currentLastN < 0) {
// If Last-N is disabled, we forward everything.
return true;
}
if (sourceChannel == null) {
logger.warn("Invalid sourceChannel: null.");
return false;
}
Endpoint channelEndpoint = sourceChannel.getEndpoint();
if (channelEndpoint == null) {
logger.warn("sourceChannel has no endpoint.");
return false;
}
if (forwardedEndpoints == INITIAL_EMPTY_LIST) {
// LastN is enabled, but we haven't yet initialized the list of
// endpoints in the conference.
initializeConferenceEndpoints();
}
// This may look like a place to optimize, because we query an unordered
// list (in O(n)) and it executes on each video packet if lastN is
// enabled. However, the size of forwardedEndpoints is restricted to
// lastN and so small enough that it is not worth optimizing.
return forwardedEndpoints.contains(channelEndpoint.getID());
}
private void removeReceiveStream(ReceiveStreamDesc receiveStream, boolean emptyJB) {
if (receiveStream.format instanceof VideoFormat) {
rtpConnector.packetBuffer.disable(receiveStream.ssrc);
emptyPacketBuffer(receiveStream.ssrc);
}
if (receiveStream.dataSink != null) {
try {
receiveStream.dataSink.stop();
} catch (IOException e) {
logger.error("Failed to stop DataSink " + e);
}
receiveStream.dataSink.close();
}
if (receiveStream.processor != null) {
receiveStream.processor.stop();
receiveStream.processor.close();
}
DataSource dataSource = receiveStream.receiveStream.getDataSource();
if (dataSource != null) {
try {
dataSource.stop();
} catch (IOException ioe) {
logger.warn("Failed to stop DataSource");
}
dataSource.disconnect();
}
synchronized (receiveStreams) {
receiveStreams.remove(receiveStream);
}
}
/** Implements notification in order to track socket state. */
@Override
public synchronized void onSctpNotification(SctpSocket socket, SctpNotification notification) {
if (logger.isDebugEnabled()) {
logger.debug("socket=" + socket + "; notification=" + notification);
}
switch (notification.sn_type) {
case SctpNotification.SCTP_ASSOC_CHANGE:
SctpNotification.AssociationChange assocChange =
(SctpNotification.AssociationChange) notification;
switch (assocChange.state) {
case SctpNotification.AssociationChange.SCTP_COMM_UP:
if (!assocIsUp) {
boolean wasReady = isReady();
assocIsUp = true;
if (isReady() && !wasReady) notifySctpConnectionReady();
}
break;
case SctpNotification.AssociationChange.SCTP_COMM_LOST:
case SctpNotification.AssociationChange.SCTP_SHUTDOWN_COMP:
case SctpNotification.AssociationChange.SCTP_CANT_STR_ASSOC:
try {
closeStream();
} catch (IOException e) {
logger.error("Error closing SCTP socket", e);
}
break;
}
break;
}
}
/**
* Makes an <tt>RTCPREMBPacket</tt> that provides receiver feedback to the endpoint from which we
* receive.
*
* @return an <tt>RTCPREMBPacket</tt> that provides receiver feedback to the endpoint from which
* we receive.
*/
private RTCPREMBPacket makeRTCPREMBPacket() {
// TODO we should only make REMBs if REMB support has been advertised.
// Destination
RemoteBitrateEstimator remoteBitrateEstimator =
((VideoMediaStream) getStream()).getRemoteBitrateEstimator();
Collection<Integer> ssrcs = remoteBitrateEstimator.getSsrcs();
// TODO(gp) intersect with SSRCs from signaled simulcast layers
// NOTE(gp) The Google Congestion Control algorithm (sender side)
// doesn't seem to care about the SSRCs in the dest field.
long[] dest = new long[ssrcs.size()];
int i = 0;
for (Integer ssrc : ssrcs) dest[i++] = ssrc & 0xFFFFFFFFL;
// Exp & mantissa
long bitrate = remoteBitrateEstimator.getLatestEstimate();
if (bitrate == -1) return null;
if (logger.isDebugEnabled()) logger.debug("Estimated bitrate: " + bitrate);
// Create and return the packet.
// We use the stream's local source ID (SSRC) as the SSRC of packet
// sender.
long streamSSRC = getLocalSSRC();
return new RTCPREMBPacket(streamSSRC, /* mediaSSRC */ 0L, bitrate, dest);
}
/**
* Gets the <tt>MediaFormat</tt>s among the specified <tt>mediaFormats</tt> which have the
* specified <tt>encoding</tt> and, optionally, <tt>clockRate</tt>.
*
* @param mediaFormats the <tt>MediaFormat</tt>s from which to filter out only the ones which have
* the specified <tt>encoding</tt> and, optionally, <tt>clockRate</tt>
* @param encoding the well-known encoding (name) of the <tt>MediaFormat</tt>s to be retrieved
* @param clockRate the clock rate of the <tt>MediaFormat</tt>s to be retrieved; {@link
* #CLOCK_RATE_NOT_SPECIFIED} if any clock rate is acceptable
* @return a <tt>List</tt> of the <tt>MediaFormat</tt>s among <tt>mediaFormats</tt> which have the
* specified <tt>encoding</tt> and, optionally, <tt>clockRate</tt>
*/
private List<MediaFormat> getMatchingMediaFormats(
MediaFormat[] mediaFormats, String encoding, double clockRate) {
/*
* XXX Use String#equalsIgnoreCase(String) because some clients transmit
* some of the codecs starting with capital letters.
*/
/*
* As per RFC 3551.4.5.2, because of a mistake in RFC 1890 and for
* backward compatibility, G.722 should always be announced as 8000 even
* though it is wideband. So, if someone is looking for G722/16000,
* then: Forgive them, for they know not what they do!
*/
if ("G722".equalsIgnoreCase(encoding) && (16000 == clockRate)) {
clockRate = 8000;
if (logger.isInfoEnabled()) logger.info("Suppressing erroneous 16000 announcement for G.722");
}
List<MediaFormat> supportedMediaFormats = new ArrayList<MediaFormat>();
for (MediaFormat mediaFormat : mediaFormats) {
if (mediaFormat.getEncoding().equalsIgnoreCase(encoding)
&& ((CLOCK_RATE_NOT_SPECIFIED == clockRate)
|| (mediaFormat.getClockRate() == clockRate))) {
supportedMediaFormats.add(mediaFormat);
}
}
return supportedMediaFormats;
}
/**
* Retransmits a packet to {@link #channel}. If the destination supports the RTX format, the
* packet will be encapsulated in RTX, otherwise, the packet will be retransmitted as-is.
*
* @param pkt the packet to retransmit.
* @param after the {@code TransformEngine} in the chain of {@code TransformEngine}s of the
* associated {@code MediaStream} after which the injection of {@code pkt} is to begin
* @return {@code true} if the packet was successfully retransmitted, {@code false} otherwise.
*/
public boolean retransmit(RawPacket pkt, TransformEngine after) {
boolean destinationSupportsRtx = channel.getRtxPayloadType() != -1;
boolean retransmitPlain;
if (destinationSupportsRtx) {
long rtxSsrc = getPairedSsrc(pkt.getSSRC());
if (rtxSsrc == -1) {
logger.warn("Cannot find SSRC for RTX, retransmitting plain.");
retransmitPlain = true;
} else {
retransmitPlain = !encapsulateInRtxAndTransmit(pkt, rtxSsrc);
}
} else {
retransmitPlain = true;
}
if (retransmitPlain) {
MediaStream mediaStream = channel.getStream();
if (mediaStream != null) {
try {
mediaStream.injectPacket(pkt, /* data */ true, after);
} catch (TransmissionFailedException tfe) {
logger.warn("Failed to retransmit a packet.");
return false;
}
}
}
return true;
}
/**
* Jirecon packets processing logic.
*
* <p>{@inheritDoc}
*/
@Override
public void processPacket(Packet packet) {
JireconIq recording = (JireconIq) packet;
if (JireconIq.Action.INFO != recording.getAction() && IQ.Type.RESULT == recording.getType()
|| StringUtils.isNullOrEmpty(recording.getRid())) {
logger.warn("Discarded: " + recording.toXML());
return;
}
if (!recording.getRid().equals(recordingId)) {
logger.warn("Received IQ for unknown session: " + recording.toXML());
return;
}
if (status != recording.getStatus()) {
status = recording.getStatus();
logger.info("Recording " + recordingId + " status: " + status);
if (status == JireconIq.Status.STOPPED) {
logger.info("Recording STOPPED: " + recordingId);
recordingId = null;
}
} else {
logger.info("Ignored status change: " + recording.toXML());
}
}
/**
* Handles a specific <tt>IOException</tt> which was thrown during the execution of {@link
* #runInConnectThread(DTLSProtocol, TlsPeer, DatagramTransport)} while trying to establish a DTLS
* connection
*
* @param ioe the <tt>IOException</tt> to handle
* @param msg the human-readable message to log about the specified <tt>ioe</tt>
* @param i the number of tries remaining after the current one
* @return <tt>true</tt> if the specified <tt>ioe</tt> was successfully handled; <tt>false</tt>,
* otherwise
*/
private boolean handleRunInConnectThreadException(IOException ioe, String msg, int i) {
// SrtpControl.start(MediaType) starts its associated TransformEngine.
// We will use that mediaType to signal the normal stop then as well
// i.e. we will ignore exception after the procedure to stop this
// PacketTransformer has begun.
if (mediaType == null) return false;
if (ioe instanceof TlsFatalAlert) {
TlsFatalAlert tfa = (TlsFatalAlert) ioe;
short alertDescription = tfa.getAlertDescription();
if (alertDescription == AlertDescription.unexpected_message) {
msg += " Received fatal unexpected message.";
if (i == 0
|| !Thread.currentThread().equals(connectThread)
|| connector == null
|| mediaType == null) {
msg += " Giving up after " + (CONNECT_TRIES - i) + " retries.";
} else {
msg += " Will retry.";
logger.error(msg, ioe);
return true;
}
} else {
msg += " Received fatal alert " + alertDescription + ".";
}
}
logger.error(msg, ioe);
return false;
}
/**
* Sets the value of {@code lastN}, that is, the maximum number of endpoints whose video streams
* will be forwarded to the endpoint. A value of {@code -1} means that there is no limit.
*
* @param lastN the value to set.
*/
public void setLastN(int lastN) {
if (logger.isDebugEnabled()) {
logger.debug("Setting lastN=" + lastN);
}
List<String> endpointsToAskForKeyframe = null;
synchronized (this) {
// Since we have the lock anyway, call update() inside, so it
// doesn't have to obtain it again. But keep the call to
// askForKeyframes() outside.
if (this.lastN != lastN) {
// If we're just now enabling lastN, we don't need to ask for
// keyframes as all streams were being forwarded already.
boolean update = this.lastN != -1;
this.lastN = lastN;
if (lastN >= 0 && (currentLastN < 0 || currentLastN > lastN)) {
currentLastN = lastN;
}
if (update) {
endpointsToAskForKeyframe = update();
}
}
}
askForKeyframes(endpointsToAskForKeyframe);
}
/**
* Initializes the local list of endpoints ({@link #speechActivityEndpointsChanged(List)}) with
* the current endpoints from the conference.
*/
public synchronized void initializeConferenceEndpoints() {
speechActivityEndpointsChanged(channel.getConferenceSpeechActivity().getEndpoints());
if (logger.isDebugEnabled()) {
logger.debug(
"Initialized the list of endpoints: " + conferenceSpeechActivityEndpoints.toString());
}
}
/**
* Stop desktop capture stream.
*
* @see AbstractPullBufferStream#stop()
*/
@Override
public void stop() throws IOException {
try {
if (logger.isInfoEnabled()) logger.info("Stop stream");
} finally {
super.stop();
byteBufferPool.drain();
}
}
/**
* Write the overall stats of the <tt>MediaStream</tt> this <tt>MediaStreamStats</tt> keep track
* in its file.
*/
public void writeOverallStats() {
try {
logger.info("Writing overall stats to file");
PrintWriter writer = new PrintWriter(overallStatsFile, "UTF-8");
writer.print(getOverallStatsJSON() + '\n');
writer.close();
} catch (FileNotFoundException e) {
logger.fatal("Overall stats file opening error", e);
} catch (UnsupportedEncodingException e) {
logger.fatal("Overall stats file opening error", e);
}
}
/**
* Returns {@code true} if a specific RED packet contains multiple blocks;
* {@code false}, otherwise.
*
* @param buffer the byte buffer that contains the RED payload.
* @param offset the offset in the buffer where the RED payload begins.
* @param length the length of the RED payload.
* @return {@code true if {@pkt} contains multiple RED blocks; otherwise,
* {@code false}
*/
public static boolean isMultiBlock(byte[] buffer, int offset, int length) {
if (buffer == null || buffer.length == 0) {
logger.warn("The buffer appears to be empty.");
return false;
}
if (offset < 0 || buffer.length <= offset) {
logger.warn("Prevented array out of bounds exception.");
return false;
}
return (buffer[offset] & 0x80) != 0;
}
protected void doInitialize() throws Exception {
DSCaptureDevice devices[] = DSManager.getInstance().getCaptureDevices();
boolean captureDeviceInfoIsAdded = false;
for (int i = 0, count = (devices == null) ? 0 : devices.length; i < count; i++) {
long pixelFormat = devices[i].getFormat().getPixelFormat();
int ffmpegPixFmt = (int) DataSource.getFFmpegPixFmt(pixelFormat);
Format format = null;
if (ffmpegPixFmt != FFmpeg.PIX_FMT_NONE) {
format = new AVFrameFormat(ffmpegPixFmt, (int) pixelFormat);
} else {
logger.warn(
"No support for this webcam: "
+ devices[i].getName()
+ "(format "
+ pixelFormat
+ " not supported)");
continue;
}
if (logger.isInfoEnabled()) {
for (DSFormat f : devices[i].getSupportedFormats()) {
if (f.getWidth() != 0 && f.getHeight() != 0)
logger.info(
"Webcam available resolution for "
+ devices[i].getName()
+ ":"
+ f.getWidth()
+ "x"
+ f.getHeight());
}
}
CaptureDeviceInfo device =
new CaptureDeviceInfo(
devices[i].getName(),
new MediaLocator(LOCATOR_PROTOCOL + ':' + devices[i].getName()),
new Format[] {format});
if (logger.isInfoEnabled()) logger.info("Found[" + i + "]: " + device.getName());
CaptureDeviceManager.addDevice(device);
captureDeviceInfoIsAdded = true;
}
if (captureDeviceInfoIsAdded && !MediaServiceImpl.isJmfRegistryDisableLoad())
CaptureDeviceManager.commit();
DSManager.dispose();
}
/**
* Restarts the recording for a specific SSRC.
*
* @param ssrc the SSRC for which to restart recording. RTP packet of the new recording).
*/
private void resetRecording(long ssrc, long timestamp) {
ReceiveStreamDesc receiveStream = findReceiveStream(ssrc);
// we only restart audio recordings
if (receiveStream != null && receiveStream.format instanceof AudioFormat) {
String newFilename = getNextFilename(path + "/" + ssrc, AUDIO_FILENAME_SUFFIX);
// flush the buffer contained in the MP3 encoder
String s = "trying to flush ssrc=" + ssrc;
Processor p = receiveStream.processor;
if (p != null) {
s += " p!=null";
for (TrackControl tc : p.getTrackControls()) {
Object o = tc.getControl(FlushableControl.class.getName());
if (o != null) ((FlushableControl) o).flush();
}
}
if (logger.isInfoEnabled()) {
logger.info("Restarting recording for SSRC=" + ssrc + ". New filename: " + newFilename);
}
receiveStream.dataSink.close();
receiveStream.dataSink = null;
// flush the FMJ jitter buffer
// DataSource ds = receiveStream.receiveStream.getDataSource();
// if (ds instanceof net.sf.fmj.media.protocol.rtp.DataSource)
// ((net.sf.fmj.media.protocol.rtp.DataSource)ds).flush();
receiveStream.filename = newFilename;
try {
receiveStream.dataSink =
Manager.createDataSink(
receiveStream.dataSource, new MediaLocator("file:" + newFilename));
} catch (NoDataSinkException ndse) {
logger.warn("Could not reset recording for SSRC=" + ssrc + ": " + ndse);
removeReceiveStream(receiveStream, false);
}
try {
receiveStream.dataSink.open();
receiveStream.dataSink.start();
} catch (IOException ioe) {
logger.warn("Could not reset recording for SSRC=" + ssrc + ": " + ioe);
removeReceiveStream(receiveStream, false);
}
audioRecordingStarted(ssrc, timestamp);
}
}
/** {@inheritDoc} */
@Override
public boolean setRecording(String from, String token, State doRecord, String path) {
if (!StringUtils.isNullOrEmpty(this.token) && !this.token.equals(token)) {
return false;
}
if (!isRecording() && doRecord.equals(State.ON)) {
// Send start recording IQ
JireconIq recording = new JireconIq();
recording.setTo(recorderComponentJid);
recording.setType(IQ.Type.SET);
recording.setFrom(from);
recording.setMucJid(mucRoomJid);
recording.setAction(JireconIq.Action.START);
recording.setOutput(path);
Packet reply = xmpp.getXmppConnection().sendPacketAndGetReply(recording);
if (reply instanceof JireconIq) {
JireconIq recResponse = (JireconIq) reply;
if (JireconIq.Status.INITIATING.equals(recResponse.getStatus())) {
recordingId = recResponse.getRid();
logger.info("Received recording ID: " + recordingId);
status = JireconIq.Status.INITIATING;
} else {
logger.error("Unexpected status received: " + recResponse.toXML());
}
} else {
logger.error("Unexpected response: " + IQUtils.responseToXML(reply));
}
} else if (isRecording() && doRecord.equals(State.OFF)) {
// Send stop recording IQ
JireconIq recording = new JireconIq();
recording.setTo(recorderComponentJid);
recording.setType(IQ.Type.SET);
recording.setFrom(from);
recording.setRid(recordingId);
recording.setMucJid(mucRoomJid);
recording.setAction(JireconIq.Action.STOP);
xmpp.getXmppConnection().sendPacket(recording);
status = JireconIq.Status.STOPPING;
}
return true;
}
/**
* Stops the <tt>msofficecomm</tt> bundle in a specific {@link BundleContext}.
*
* @param bundleContext the <tt>BundleContext</tt> in which the <tt>msofficecomm</tt> bundle is to
* be stopped
* @throws Exception if anything goes wrong while stopping the <tt>msofficecomm</tt> bundle in the
* specified <tt>BundleContext</tt>
*/
public void stop(BundleContext bundleContext) throws Exception {
// The msofficecomm bundle is available on Windows only.
if (!OSUtils.IS_WINDOWS) return;
try {
int hresult = OutOfProcessServer.stop();
if (hresult < 0) throw new RuntimeException("HRESULT " + hresult);
} finally {
Messenger.stop(bundleContext);
}
if (logger.isInfoEnabled()) logger.info("MsOfficeComm plugin ... [UNREGISTERED]");
}
/**
* Notifies this instance that the ordered list of endpoints (specified as a list of endpoint IDs)
* in the conference has changed.
*
* @param endpointIds the new ordered list of endpoints (specified as a list of endpoint IDs) in
* the conference.
* @return the list of IDs of endpoints which were added to the list of forwarded endpoints as a
* result of the call.
*/
private synchronized List<String> speechActivityEndpointIdsChanged(List<String> endpointIds) {
if (conferenceSpeechActivityEndpoints.equals(endpointIds)) {
if (logger.isDebugEnabled()) {
logger.debug("Conference endpoints have not changed.");
}
return null;
} else {
List<String> newEndpoints = new LinkedList<>(endpointIds);
newEndpoints.removeAll(conferenceSpeechActivityEndpoints);
conferenceSpeechActivityEndpoints = endpointIds;
return update(newEndpoints);
}
}
/** {@inheritDoc} */
@Override
public RawPacket transform(RawPacket pkt) {
if (pkt == null) {
return pkt;
}
RTCPCompoundPacket inPacket;
try {
inPacket =
(RTCPCompoundPacket)
parser.parse(pkt.getBuffer(), pkt.getOffset(), pkt.getLength());
} catch (BadFormatException e) {
logger.warn("Failed to terminate an RTCP packet. " + "Dropping packet.");
return null;
}
// Update our RTCP stats map (timestamps). This operation is
// read-only.
remoteClockEstimator.apply(inPacket);
cnameRegistry.update(inPacket);
// Remove SRs and RRs from the RTCP packet.
pkt = feedbackGateway.gateway(inPacket);
return pkt;
}
/**
* Returns the cached recent messages history.
*
* @return
* @throws IOException
*/
private History getHistory() throws IOException {
synchronized (historyID) {
HistoryService historyService =
MessageHistoryActivator.getMessageHistoryService().getHistoryService();
if (history == null) {
history = historyService.createHistory(historyID, recordStructure);
// lets check the version if not our version, re-create
// history (delete it)
HistoryReader reader = history.getReader();
boolean delete = false;
QueryResultSet<HistoryRecord> res = reader.findLast(1);
if (res != null && res.hasNext()) {
HistoryRecord hr = res.next();
if (hr.getPropertyValues().length >= 4) {
if (!hr.getPropertyValues()[3].equals(RECENT_MSGS_VER)) delete = true;
} else delete = true;
}
if (delete) {
// delete it
try {
historyService.purgeLocallyStoredHistory(historyID);
history = historyService.createHistory(historyID, recordStructure);
} catch (IOException ex) {
logger.error("Cannot delete recent_messages history", ex);
}
}
}
return history;
}
}
/**
* Capture a part of the desktop screen using <tt>java.awt.Robot</tt>.
*
* @param x x position to start capture
* @param y y position to start capture
* @param width capture width
* @param height capture height
* @return <tt>BufferedImage</tt> of a part of the desktop screen or null if Robot problem
*/
public BufferedImage captureScreen(int x, int y, int width, int height) {
BufferedImage img = null;
Rectangle rect = null;
if (robot == null) {
/* Robot has not been created so abort */
return null;
}
if (logger.isInfoEnabled()) logger.info("Begin capture: " + System.nanoTime());
rect = new Rectangle(x, y, width, height);
img = robot.createScreenCapture(rect);
if (logger.isInfoEnabled()) logger.info("End capture: " + System.nanoTime());
return img;
}
/**
* Tries to find an SSRC paired with {@code ssrc} in an FID group in one of the channels from
* {@link #channel}'s {@code Content}. Returns -1 on failure.
*
* @param pkt the {@code RawPacket} that holds the RTP packet for which to find a paired SSRC.
* @return An SSRC paired with {@code ssrc} in an FID group, or -1.
*/
private long getRtxSsrc(RawPacket pkt) {
StreamRTPManager receiveRTPManager =
channel.getStream().getRTPTranslator().findStreamRTPManagerByReceiveSSRC(pkt.getSSRC());
MediaStreamTrackReceiver receiver = null;
if (receiveRTPManager != null) {
MediaStream receiveStream = receiveRTPManager.getMediaStream();
if (receiveStream != null) {
receiver = receiveStream.getMediaStreamTrackReceiver();
}
}
if (receiver == null) {
return -1;
}
RTPEncoding encoding = receiver.resolveRTPEncoding(pkt);
if (encoding == null) {
logger.warn(
"encoding_not_found"
+ ",stream_hash="
+ channel.getStream().hashCode()
+ " ssrc="
+ pkt.getSSRCAsLong());
return -1;
}
return encoding.getRTXSSRC();
}
/**
* Closes given {@link #transportManagers} of this <tt>Conference</tt> and removes corresponding
* channel bundle.
*/
void closeTransportManager(TransportManager transportManager) {
synchronized (transportManagers) {
for (Iterator<IceUdpTransportManager> i = transportManagers.values().iterator();
i.hasNext(); ) {
if (i.next() == transportManager) {
i.remove();
// Presumably, we have a single association for
// transportManager.
break;
}
}
// Close manager
try {
transportManager.close();
} catch (Throwable t) {
logger.warn(
"Failed to close an IceUdpTransportManager of" + " conference " + getID() + "!", t);
// The whole point of explicitly closing the
// transportManagers of this Conference is to prevent memory
// leaks. Hence, it does not make sense to possibly leave
// TransportManagers open because a TransportManager has
// failed to close.
if (t instanceof InterruptedException) Thread.currentThread().interrupt();
else if (t instanceof ThreadDeath) throw (ThreadDeath) t;
}
}
}
/** Stops this <tt>PacketTransformer</tt>. */
private synchronized void stop() {
if (connectThread != null) connectThread = null;
try {
// The dtlsTransport and _srtpTransformer SHOULD be closed, of
// course. The datagramTransport MUST be closed.
if (dtlsTransport != null) {
try {
dtlsTransport.close();
} catch (IOException ioe) {
logger.error("Failed to (properly) close " + dtlsTransport.getClass(), ioe);
}
dtlsTransport = null;
}
if (_srtpTransformer != null) {
_srtpTransformer.close();
_srtpTransformer = null;
}
} finally {
try {
closeDatagramTransport();
} finally {
notifyAll();
}
}
}
/**
* Starts the configuration service
*
* @param bundleContext the <tt>BundleContext</tt> as provided by the OSGi framework.
* @throws Exception if anything goes wrong
*/
public void start(BundleContext bundleContext) throws Exception {
FileAccessService fas = ServiceUtils.getService(bundleContext, FileAccessService.class);
if (fas != null) {
File usePropFileConfig;
try {
usePropFileConfig =
fas.getPrivatePersistentFile(".usepropfileconfig", FileCategory.PROFILE);
} catch (Exception ise) {
// There is somewhat of a chicken-and-egg dependency between
// FileConfigurationServiceImpl and ConfigurationServiceImpl:
// FileConfigurationServiceImpl throws IllegalStateException if
// certain System properties are not set,
// ConfigurationServiceImpl will make sure that these properties
// are set but it will do that later.
// A SecurityException is thrown when the destination
// is not writable or we do not have access to that folder
usePropFileConfig = null;
}
if (usePropFileConfig != null && usePropFileConfig.exists()) {
logger.info("Using properties file configuration store.");
this.cs = LibJitsi.getConfigurationService();
}
}
if (this.cs == null) {
this.cs = new JdbcConfigService(fas);
}
bundleContext.registerService(ConfigurationService.class.getName(), this.cs, null);
fixPermissions(this.cs);
}
/**
* Expires this <tt>Conference</tt>, its <tt>Content</tt>s and their respective <tt>Channel</tt>s.
* Releases the resources acquired by this instance throughout its life time and prepares it to be
* garbage collected.
*/
public void expire() {
synchronized (this) {
if (expired) return;
else expired = true;
}
EventAdmin eventAdmin = videobridge.getEventAdmin();
if (eventAdmin != null) eventAdmin.sendEvent(EventFactory.conferenceExpired(this));
setRecording(false);
if (recorderEventHandler != null) {
recorderEventHandler.close();
recorderEventHandler = null;
}
Videobridge videobridge = getVideobridge();
try {
videobridge.expireConference(this);
} finally {
// Expire the Contents of this Conference.
for (Content content : getContents()) {
try {
content.expire();
} catch (Throwable t) {
logger.warn(
"Failed to expire content " + content.getName() + " of conference " + getID() + "!",
t);
if (t instanceof InterruptedException) Thread.currentThread().interrupt();
else if (t instanceof ThreadDeath) throw (ThreadDeath) t;
}
}
// Close the transportManagers of this Conference. Normally, there
// will be no TransportManager left to close at this point because
// all Channels have expired and the last Channel to be removed from
// a TransportManager closes the TransportManager. However, a
// Channel may have expired before it has learned of its
// TransportManager and then the TransportManager will not close.
closeTransportManagers();
if (logger.isInfoEnabled()) {
logger.info(
"Expired conference " + getID() + ". " + videobridge.getConferenceCountString());
}
}
}
/**
* Provoke the stop of the method run(). The method run() won't be stopped right away : but the
* loop will be broken at the next iteration.
*
* <p>If the method run() is not running, calling this method won't do anything
*/
public synchronized void stop() {
if (!threadStop) {
logger.info("Stopping the main loop");
System.out.println("Stopping the HammerStats stop.\n");
threadStop = true;
}
}
/**
* Sends acknowledgment for open channel request on given SCTP stream ID.
*
* @param sid SCTP stream identifier to be used for sending ack.
*/
private void sendOpenChannelAck(int sid) throws IOException {
// Send ACK
byte[] ack = MSG_CHANNEL_ACK_BYTES;
int sendAck = sctpSocket.send(ack, true, sid, WEB_RTC_PPID_CTRL);
if (sendAck != ack.length) {
logger.error("Failed to send open channel confirmation");
}
}
/**
* Ctor.
*
* @param videoChannel The <tt>VideoChannel</tt> associated to this <tt>SimulcastEngine</tt>.
*/
public SimulcastEngine(VideoChannel videoChannel) {
this.videoChannel = videoChannel;
simulcastReceiver =
new SimulcastReceiver(
this,
ServiceUtils.getService(videoChannel.getBundleContext(), ConfigurationService.class));
this.logger =
Logger.getLogger(classLogger, videoChannel.getContent().getConference().getLogger());
}
