/**
* Close stream. This method can close both IClientBroadcastStream (coming from Flash Player to
* Red5) and ISubscriberStream (from Red5 to Flash Player). Corresponding application handlers
* (streamSubscriberClose, etc.) are called as if close was initiated by Flash Player.
*
* <p>It is recommended to remember stream id in application handlers, ex.:
*
* <pre>
* public void streamBroadcastStart(IBroadcastStream stream) {
* super.streamBroadcastStart(stream);
* if (stream instanceof IClientBroadcastStream) {
* int publishedStreamId = ((ClientBroadcastStream)stream).getStreamId();
* Red5.getConnectionLocal().setAttribute(PUBLISHED_STREAM_ID_ATTRIBUTE, publishedStreamId);
* }
* }
* </pre>
*
* <pre>
* public void streamPlaylistItemPlay(IPlaylistSubscriberStream stream, IPlayItem item, boolean isLive) {
* super.streamPlaylistItemPlay(stream, item, isLive);
* Red5.getConnectionLocal().setAttribute(WATCHED_STREAM_ID_ATTRIBUTE, stream.getStreamId());
* }
* </pre>
*
* When stream is closed, corresponding NetStream status will be sent to stream provider /
* consumers. Implementation is based on Red5's StreamService.close()
*
* @param conn client connection
* @param streamId stream ID (number: 1,2,...)
*/
public void closeStream(IConnection conn, int streamId) {
log.info("closeStream: streamId={}, connection={}", streamId, conn);
if (conn instanceof IStreamCapableConnection) {
IStreamCapableConnection scConn = (IStreamCapableConnection) conn;
IClientStream stream = scConn.getStreamById(streamId);
if (stream != null) {
if (stream instanceof IClientBroadcastStream) {
// this is a broadcasting stream (from Flash Player to Red5)
IClientBroadcastStream bs = (IClientBroadcastStream) stream;
IBroadcastScope bsScope = getBroadcastScope(conn.getScope(), bs.getPublishedName());
if (bsScope != null && conn instanceof BaseConnection) {
((BaseConnection) conn).unregisterBasicScope(bsScope);
}
}
stream.close();
scConn.deleteStreamById(streamId);
// in case of broadcasting stream, status is sent automatically by Red5
if (!(stream instanceof IClientBroadcastStream)) {
StreamService.sendNetStreamStatus(
conn,
StatusCodes.NS_PLAY_STOP,
"Stream closed by server",
stream.getName(),
Status.STATUS,
streamId);
}
} else {
log.info("Stream not found: streamId={}, connection={}", streamId, conn);
}
} else {
log.warn("Connection is not instance of IStreamCapableConnection: {}", conn);
}
}
/** {@inheritDoc} */
@Override
protected void onPing(RTMPConnection conn, Channel channel, Header source, Ping ping) {
log.trace("onPing");
switch (ping.getEventType()) {
case Ping.PING_CLIENT:
case Ping.STREAM_BEGIN:
case Ping.RECORDED_STREAM:
case Ping.STREAM_PLAYBUFFER_CLEAR:
// the server wants to measure the RTT
Ping pong = new Ping();
pong.setEventType(Ping.PONG_SERVER);
pong.setValue2((int) (System.currentTimeMillis() & 0xffffffff));
conn.ping(pong);
break;
case Ping.STREAM_DRY:
log.debug("Stream indicates there is no data available");
break;
case Ping.CLIENT_BUFFER:
// set the client buffer
IClientStream stream = null;
// get the stream id
int streamId = ping.getValue2();
// get requested buffer size in milliseconds
int buffer = ping.getValue3();
log.debug("Client sent a buffer size: {} ms for stream id: {}", buffer, streamId);
if (streamId != 0) {
// the client wants to set the buffer time
stream = conn.getStreamById(streamId);
if (stream != null) {
stream.setClientBufferDuration(buffer);
log.info("Setting client buffer on stream: {}", buffer);
}
}
// catch-all to make sure buffer size is set
if (stream == null) {
// remember buffer time until stream is created
conn.rememberStreamBufferDuration(streamId, buffer);
log.info("Remembering client buffer on stream: {}", buffer);
}
break;
case Ping.PING_SWF_VERIFY:
log.debug("SWF verification ping");
// TODO get the swf verification bytes from the handshake
SWFResponse swfPong = new SWFResponse(new byte[42]);
conn.ping(swfPong);
break;
case Ping.BUFFER_EMPTY:
log.debug("Buffer empty ping");
break;
case Ping.BUFFER_FULL:
log.debug("Buffer full ping");
break;
default:
log.warn("Unhandled ping: {}", ping);
}
}
/** {@inheritDoc} */
public void play(Boolean dontStop) {
log.debug("Play called. Dont stop param: {}", dontStop);
if (!dontStop) {
IConnection conn = Red5.getConnectionLocal();
if (conn instanceof IStreamCapableConnection) {
IStreamCapableConnection streamConn = (IStreamCapableConnection) conn;
int streamId = conn.getStreamId();
IClientStream stream = streamConn.getStreamById(streamId);
if (stream != null) {
stream.stop();
}
}
}
}
/** {@inheritDoc} */
public void deleteStream(IStreamCapableConnection conn, int streamId) {
IClientStream stream = conn.getStreamById(streamId);
if (stream != null) {
if (stream instanceof IClientBroadcastStream) {
IClientBroadcastStream bs = (IClientBroadcastStream) stream;
IBroadcastScope bsScope = getBroadcastScope(conn.getScope(), bs.getPublishedName());
if (bsScope != null && conn instanceof BaseConnection) {
((BaseConnection) conn).unregisterBasicScope(bsScope);
}
}
stream.close();
}
conn.unreserveStreamId(streamId);
}
/** {@inheritDoc} */
public IMessageOutput getConsumerOutput(IClientStream stream) {
IStreamCapableConnection streamConn = stream.getConnection();
if (streamConn == null || !(streamConn instanceof RTMPConnection)) {
return null;
}
RTMPConnection conn = (RTMPConnection) streamConn;
// TODO Better manage channels.
// now we use OutputStream as a channel wrapper.
OutputStream o = conn.createOutputStream(stream.getStreamId());
IPipe pipe = new InMemoryPushPushPipe();
pipe.subscribe(
new ConnectionConsumer(
conn, o.getVideo().getId(), o.getAudio().getId(), o.getData().getId()),
null);
return pipe;
}
/** {@inheritDoc} */
public void initStream(int streamId) {
IConnection conn = Red5.getConnectionLocal();
log.info("initStream: id={} current id: {} connection={}", streamId, conn.getStreamId(), conn);
if (conn instanceof IStreamCapableConnection) {
((IStreamCapableConnection) conn).reserveStreamId(streamId);
IClientStream stream = ((IStreamCapableConnection) conn).getStreamById(streamId);
if (stream != null) {
if (stream instanceof IClientBroadcastStream) {
IClientBroadcastStream bs = (IClientBroadcastStream) stream;
IBroadcastScope bsScope = getBroadcastScope(conn.getScope(), bs.getPublishedName());
if (bsScope != null && conn instanceof BaseConnection) {
((BaseConnection) conn).unregisterBasicScope(bsScope);
}
}
stream.close();
}
((IStreamCapableConnection) conn).deleteStreamById(streamId);
} else {
log.warn("ERROR in intiStream, connection is not stream capable");
}
}
/** {@inheritDoc} */
@Override
public void close() {
getWriteLock().lock();
try {
if (keepAliveJobName != null) {
schedulingService.removeScheduledJob(keepAliveJobName);
keepAliveJobName = null;
}
} finally {
getWriteLock().unlock();
}
Red5.setConnectionLocal(this);
IStreamService streamService =
(IStreamService) getScopeService(scope, IStreamService.class, StreamService.class);
if (streamService != null) {
for (Map.Entry<Integer, IClientStream> entry : streams.entrySet()) {
IClientStream stream = entry.getValue();
if (stream != null) {
log.debug("Closing stream: {}", stream.getStreamId());
streamService.deleteStream(this, stream.getStreamId());
usedStreams.decrementAndGet();
}
}
streams.clear();
}
channels.clear();
getWriteLock().lock();
try {
if (bwContext != null && getScope() != null && getScope().getContext() != null) {
IBWControlService bwController =
(IBWControlService) getScope().getContext().getBean(IBWControlService.KEY);
bwController.unregisterBWControllable(bwContext);
bwContext = null;
}
} finally {
getWriteLock().unlock();
}
super.close();
}
/** {@inheritDoc} */
public void seek(int position) {
log.trace("seek - position:{}", position);
IConnection conn = Red5.getConnectionLocal();
if (conn instanceof IStreamCapableConnection) {
IStreamCapableConnection streamConn = (IStreamCapableConnection) conn;
int streamId = conn.getStreamId();
IClientStream stream = streamConn.getStreamById(streamId);
if (stream != null && stream instanceof ISubscriberStream) {
ISubscriberStream subscriberStream = (ISubscriberStream) stream;
try {
subscriberStream.seek(position);
} catch (OperationNotSupportedException err) {
sendNSFailed(
streamConn,
StatusCodes.NS_SEEK_FAILED,
"The stream doesn't support seeking.",
stream.getName(),
streamId);
}
}
}
}
public void addClientStream(IClientStream stream) {
int streamId = stream.getStreamId();
getWriteLock().lock();
try {
if (reservedStreams.get(streamId - 1)) {
return;
}
reservedStreams.set(streamId - 1);
} finally {
getWriteLock().unlock();
}
streams.put(streamId - 1, stream);
usedStreams.incrementAndGet();
}
/** {@inheritDoc} */
@Override
public void close() {
getWriteLock().lock();
try {
if (keepAliveJobName != null) {
schedulingService.removeScheduledJob(keepAliveJobName);
keepAliveJobName = null;
}
} finally {
getWriteLock().unlock();
}
Red5.setConnectionLocal(this);
IStreamService streamService =
(IStreamService) getScopeService(scope, IStreamService.class, StreamService.class);
if (streamService != null) {
for (Map.Entry<Integer, IClientStream> entry : streams.entrySet()) {
IClientStream stream = entry.getValue();
if (stream != null) {
log.debug("Closing stream: {}", stream.getStreamId());
streamService.deleteStream(this, stream.getStreamId());
usedStreams.decrementAndGet();
}
}
}
// close the base connection - disconnect scopes and unregister client
super.close();
// kill all the collections etc
if (channels != null) {
channels.clear();
channels = null;
} else {
log.trace("Channels collection was null");
}
if (streams != null) {
streams.clear();
streams = null;
} else {
log.trace("Streams collection was null");
}
if (pendingCalls != null) {
pendingCalls.clear();
pendingCalls = null;
} else {
log.trace("PendingCalls collection was null");
}
if (deferredResults != null) {
deferredResults.clear();
deferredResults = null;
} else {
log.trace("DeferredResults collection was null");
}
if (pendingVideos != null) {
pendingVideos.clear();
pendingVideos = null;
} else {
log.trace("PendingVideos collection was null");
}
if (streamBuffers != null) {
streamBuffers.clear();
streamBuffers = null;
} else {
log.trace("StreamBuffers collection was null");
}
}
/**
* Remove a stream from the connection.
*
* @param stream
*/
@SuppressWarnings("unused")
private void unregisterStream(IClientStream stream) {
streams.remove(stream.getStreamId());
}
/**
* Store a stream in the connection.
*
* @param stream
*/
private void registerStream(IClientStream stream) {
streams.put(stream.getStreamId() - 1, stream);
}
/** {@inheritDoc} */
public void play(String name, int start, int length, boolean flushPlaylist) {
log.debug(
"Play called - name: {} start: {} length: {} flush playlist: {}",
new Object[] {name, start, length, flushPlaylist});
IConnection conn = Red5.getConnectionLocal();
if (conn instanceof IStreamCapableConnection) {
IScope scope = conn.getScope();
IStreamCapableConnection streamConn = (IStreamCapableConnection) conn;
int streamId = conn.getStreamId();
if (StringUtils.isEmpty(name)) {
sendNSFailed(
streamConn, StatusCodes.NS_FAILED, "The stream name may not be empty.", name, streamId);
return;
}
IStreamSecurityService security =
(IStreamSecurityService) ScopeUtils.getScopeService(scope, IStreamSecurityService.class);
if (security != null) {
Set<IStreamPlaybackSecurity> handlers = security.getStreamPlaybackSecurity();
for (IStreamPlaybackSecurity handler : handlers) {
if (!handler.isPlaybackAllowed(scope, name, start, length, flushPlaylist)) {
sendNSFailed(
streamConn,
StatusCodes.NS_FAILED,
"You are not allowed to play the stream.",
name,
streamId);
return;
}
}
}
boolean created = false;
IClientStream stream = streamConn.getStreamById(streamId);
if (stream == null) {
if (streamId <= 0) {
streamId = streamConn.reserveStreamId();
}
stream = streamConn.newPlaylistSubscriberStream(streamId);
stream.setBroadcastStreamPublishName(name);
stream.start();
created = true;
}
if (stream != null && stream instanceof ISubscriberStream) {
ISubscriberStream subscriberStream = (ISubscriberStream) stream;
IPlayItem item =
simplePlayback.get()
? SimplePlayItem.build(name, start, length)
: DynamicPlayItem.build(name, start, length);
if (subscriberStream instanceof IPlaylistSubscriberStream) {
IPlaylistSubscriberStream playlistStream = (IPlaylistSubscriberStream) subscriberStream;
if (flushPlaylist) {
playlistStream.removeAllItems();
}
playlistStream.addItem(item);
} else if (subscriberStream instanceof ISingleItemSubscriberStream) {
ISingleItemSubscriberStream singleStream = (ISingleItemSubscriberStream) subscriberStream;
singleStream.setPlayItem(item);
} else {
// not supported by this stream service
log.warn(
"Stream instance type: {} is not supported", subscriberStream.getClass().getName());
return;
}
try {
subscriberStream.play();
} catch (IOException err) {
if (created) {
stream.close();
streamConn.deleteStreamById(streamId);
}
sendNSFailed(streamConn, StatusCodes.NS_FAILED, err.getMessage(), name, streamId);
}
}
} else {
log.debug("Connection was not stream capable");
}
}
