/**
* Start waiting for a valid handshake.
*
* @param service The scheduling service to use
*/
protected void startWaitForHandshake(ISchedulingService service) {
getWriteLock().lock();
try {
waitForHandshakeService = service;
waitForHandshakeJob =
service.addScheduledOnceJob(maxHandshakeTimeout, new WaitForHandshakeJob());
} finally {
getWriteLock().unlock();
}
}
/**
* Pull the next message from IMessageInput and schedule it for push according to the timestamp.
*/
protected void scheduleNextMessage() {
boolean first = (nextRTMPMessage == null);
long delta = 0L;
do {
nextRTMPMessage = getNextRTMPMessage();
if (nextRTMPMessage != null) {
IRTMPEvent rtmpEvent = nextRTMPMessage.getBody();
// filter all non-AV messages
if (rtmpEvent instanceof VideoData || rtmpEvent instanceof AudioData) {
rtmpEvent = nextRTMPMessage.getBody();
nextTS = rtmpEvent.getTimestamp();
if (first) {
vodStartTS = nextTS;
first = false;
}
delta = nextTS - vodStartTS - (System.currentTimeMillis() - serverStartTS);
if (delta < WAIT_THRESHOLD) {
if (doPushMessage()) {
if (state != StreamState.PLAYING) {
// Stream is not playing, don't load more messages
nextRTMPMessage = null;
}
} else {
nextRTMPMessage = null;
}
}
}
} else {
onItemEnd();
}
} while (nextRTMPMessage != null || delta < WAIT_THRESHOLD);
// start the job all over again
vodJobName =
scheduler.addScheduledOnceJob(
delta,
new IScheduledJob() {
public void execute(ISchedulingService service) {
if (vodJobName != null) {
vodJobName = null;
if (doPushMessage()) {
if (state == StreamState.PLAYING) {
scheduleNextMessage();
} else {
// Stream is paused, don't load more messages
nextRTMPMessage = null;
}
}
}
}
});
}
/**
* Play a specific IPlayItem. The strategy for now is VOD first, Live second.
*
* @param item Item to play
*/
protected void play(IPlayItem item) {
// dont play unless we are stopped
if (state == StreamState.STOPPED) {
// assume this is not live stream
boolean isLive = false;
if (providerService != null) {
msgIn = providerService.getVODProviderInput(getScope(), item.getName());
if (msgIn == null) {
msgIn = providerService.getLiveProviderInput(getScope(), item.getName(), true);
isLive = true;
}
if (msgIn == null) {
log.warn("ABNORMAL Can't get both VOD and Live input from providerService");
return;
}
}
setState(StreamState.PLAYING);
currentItem = item;
sendResetMessage();
if (msgIn != null) {
msgIn.subscribe(this, null);
}
if (isLive) {
if (item.getLength() >= 0) {
liveJobName =
scheduler.addScheduledOnceJob(
item.getLength(),
new IScheduledJob() {
public void execute(ISchedulingService service) {
if (liveJobName == null) {
return;
}
liveJobName = null;
onItemEnd();
}
});
}
} else {
long start = item.getStart();
if (start < 0) {
start = 0;
}
sendVODInitCM(msgIn, (int) start);
startBroadcastVOD();
}
}
}
/**
* Start waiting for a valid handshake.
*
* @param service The scheduling service to use
*/
protected void startWaitForHandshake(ISchedulingService service) {
waitForHandshakeJob =
service.addScheduledOnceJob(maxHandshakeTimeout, new WaitForHandshakeJob());
}
