Tutorial: Work with Digital Video Broadcasting

Get all available instances in the system:

console.log(stbDvbManager.inputs);

Get the first available input:

var input = stbDvbManager.inputs[0];

Get information about whether input can change antennaPower:

console.log(input.capabilities.antennaPower);

Manual control of antenna power state:

// turn on
input.antennaPower = true;

// turn off
input.antennaPower = false;

Get information about input:

// get supported scan types for this tuner
console.log(input.supportedScanTypes);

// get currently supported scan types for this tuner
console.log(input.currentScanTypes);

Set current scan type for this input:

// DVB-C signal
console.log(input.setSignalType(input.TYPE_DVB_C));

Device may require reboot to apply changed signal type. To determine this check flag:

if ( input.capabilities.requireReboot ) {
    gSTB.ExecAction('reboot');
}

Set event listeners to handle received data:

input.onScanProgress = function ( info ) {
    console.log('DVB channels scanning is in progress.');
    console.log(info);
};

input.onChannelFound = function ( info ) {
    console.log('DVB channel is found.');
    console.log(info);
};

input.onAntennaPower = function ( status ) {
    console.log('DVB antenna powered was changed.');
    console.log(status);
};

Start channel scanning (parameters explanation see in stbDvbInput.startScan method):

input.startScan({
    from: 10,
    to: 100,
    type: 2,
    bandwidth: 6,
    step: 5,
    modulation: 0,
    scanMode: 0,
    frequency: 12,
    networkId: 0
});

Stop channel scan:

input.stopScan();

Root list with all available channels from all inputs:

console.log(stbDvbManager.channelList);

Make a new channel list as a subset of the parent list:

var channelList1, channelList2;

// any channel with LCN less then 123
channelList1 = stbDvbManager.createChannelList(['lt', 'channelNumber', 123], stbDvbManager.channelList);
console.log(channelList1);

// all channels without filters
channelList2 = stbDvbManager.createChannelList([], stbDvbManager.channelList);
console.log(channelList2);

Get size of list:

console.log(channelList1.size);

Add channel to the list:

channelList2.add(channelList1.get(123).id);

Remove the given channel from this channel list with check operation status:

if ( !channelList2.remove(channelList2.get(123).id) ) {
    console.log('Was not able to remove a channel!');
}

if ( !channelList2.remove(123) ) {
    console.log('Was not able to remove a channel!');
}

Get channel detailed info:

// by index
console.log(channelList2.get(5));
// by channel unique id
console.log(channelList2.get('C.0.000506.06875-00'));

Get channel range:

console.log(channelList2.slice(1, 5));

Get the channel index in this channel list:

console.log(channelList1.indexOf(channelList2.get(123).id));

Remove all channels from this channel list:

channelList2.clear();

Preload the given channel to faster start playing:

stbDvbManager.loadChannel(channelList2.get(0));

Unload from preloaded cache the given channel:

stbDvbManager.unloadChannel(channelList2.get(0));

Unload from preloaded cache all channels:

stbDvbManager.unloadAllChannels();

Get array of all available tuners in the system:

console.log(stbDvbManager.tuners);

Play channel:

var player  = stbPlayerManager.list[0],
    channel = channelList2.get(0);

player.play({
    uri: channel.uri,
    solution: 'dvb'
});

Get first available input:

var tuner = stbDvbManager.tuners[0];

Tune receiver to specified frequency (parameters explanation see in stbDvbTuner.tune method):

tuner.tune({
    frequency: 50000
});

tuner.tune(channelList2.get(0));

Untune receiver:

tuner.untune();

Link this tuner to the given input:

tuner.moveToInput(input);

Get current input number of this tuner:

console.log(tuner.inputIndex);

Get players count which used this tuner:

console.log(tuner.playersCount);

Get Bit Error Rate:

console.log(tuner.bitErrorRate);

Get information about signal quality:

console.log(tuner.signalQuality);

Get information about signal level:

console.log(tuner.signalLevel);

Get information about tuner state (see in stbDvbTuner.stateType):

console.log(tuner.state);