public static boolean startRTSP(
String localIPAddress, int rtpStreamLocalPort, String deviceAddress, int tunerNumber) {
logger.entry(localIPAddress, rtpStreamLocalPort, deviceAddress, tunerNumber);
logger.info(
"Starting streaming from tuner number {} to local port '{}'.",
tunerNumber,
rtpStreamLocalPort);
if (tunerNumber - 1 < 0) {
logger.error("The tuner number cannot be less than 1.");
return logger.exit(false);
}
try {
String currentIP = InfiniTVStatus.getVar(deviceAddress, tunerNumber, "diag", "Streaming_IP");
String currentPort =
InfiniTVStatus.getVar(deviceAddress, tunerNumber, "diag", "Streaming_Port");
String playback = InfiniTVStatus.getVar(deviceAddress, tunerNumber, "av", "TransportState");
if (currentIP.equals(localIPAddress)
&& currentPort.equals(String.valueOf(rtpStreamLocalPort))
&& playback.equals("PLAYING")) {
logger.info("The IP address and port for RTP are already set.");
return logger.exit(true);
}
} catch (IOException e) {
logger.error("Unable to get the current ip address and streaming port => {}", e);
}
String instanceId = "instance_id=" + String.valueOf(tunerNumber - 1);
String destIp = "dest_ip=" + localIPAddress;
String destPort = "dest_port=" + rtpStreamLocalPort;
String protocol = "protocol=0"; // RTP
String start = "start=1"; // 1 = Started (0 = Stopped)
boolean returnValue =
postContent(
deviceAddress, "/stream_request.cgi", instanceId, destIp, destPort, protocol, start);
return logger.exit(returnValue);
}
public static boolean tuneChannel(
String lineupName,
String channel,
String deviceAddress,
int tunerNumber,
boolean useVChannel,
int retry)
throws InterruptedException {
logger.entry(channel, deviceAddress, tunerNumber);
boolean returnValue = false;
if (useVChannel) {
// There is no need to look up the channel when a CableCARD is present.
returnValue = tuneVChannel(channel, deviceAddress, tunerNumber, retry);
} else {
// This will only hang up temporarily when the channel map is still loading or being
// refreshed.
TVChannel tvChannel = ChannelManager.getChannel(lineupName, channel);
if (tvChannel == null) {
logger.error("The requested channel does not exist in the channel map.");
return logger.exit(false);
}
try {
// Check if the frequency is already correct.
boolean frequencyTuned =
InfiniTVStatus.getVar(deviceAddress, tunerNumber, "tuner", "Frequency")
.equals(tvChannel.getFrequency());
if (!frequencyTuned) {
tuneFrequency(tvChannel, deviceAddress, tunerNumber, retry);
}
int attempts = 10;
boolean programSelected =
InfiniTVStatus.getVar(deviceAddress, tunerNumber, "mux", "ProgramNumber")
.equals(tvChannel.getProgram());
while (!programSelected) {
// If we are not already on the correct frequency, it takes the tuner a moment
// to detect the available programs. If you try to set a program before the list
// is available, it will fail. Normally this happens so fast, a sleep method
// isn't appropriate. We have a while loop to retry a few times if it fails.
tuneProgram(tvChannel, deviceAddress, tunerNumber, retry);
programSelected =
InfiniTVStatus.getVar(deviceAddress, tunerNumber, "mux", "ProgramNumber")
.equals(tvChannel.getProgram());
if (attempts-- == 0 && !programSelected) {
logger.error("The requested program cannot be selected.");
return logger.exit(false);
} else if (!programSelected) {
try {
// Sleep if the first request fails so we don't overwhelm the device
// with requests. Remember up to 6 of these kinds of request could
// happen at the exact same time.
Thread.sleep(10);
} catch (InterruptedException e) {
logger.error("tuneChannel was interrupted while selecting a program.");
return logger.exit(false);
}
}
}
returnValue = true;
/*} catch (InterruptedException e) {
logger.debug("tuneChannel was interrupted while waiting setting the program.");*/
} catch (IOException e) {
logger.debug("tuneChannel was unable to get the current program value.");
}
}
return logger.exit(returnValue);
}
