private CameraServer()
{
m_defaultUsbDevice = 0;
m_lockObject = new object();
m_sources = new Dictionary <string, VideoSource>();
m_sinks = new Dictionary <string, VideoSink>();
m_tables = new Dictionary <int, ITable>();
m_publishTable = NetworkTable.GetTable(PublishName);
m_nextPort = BasePort;
m_addresses = new List <string>();
m_videoListener = new VideoListener((vidEvent) =>
{
switch (vidEvent.Kind)
{
case EventKind.SourceCreated:
{
// Create subtable for the camera
ITable table = m_publishTable.GetSubTable(vidEvent.Name);
lock (m_lockObject)
{
m_tables.Add(vidEvent.SourceHandle, table);
}
table.PutString("source", MakeSourceValue(vidEvent.SourceHandle));
table.PutString("description",
NativeMethods.GetSourceDescription(vidEvent.SourceHandle));
table.PutBoolean("connected", NativeMethods.IsSourceConnected(vidEvent.SourceHandle));
table.PutStringArray("streams", GetSourceStreamValues(vidEvent.SourceHandle));
try
{
VideoMode mode = NativeMethods.GetSourceVideoMode(vidEvent.SourceHandle);
table.SetDefaultString("mode", VideoModeToString(mode));
table.PutStringArray("modes", GetSourceModeValues(vidEvent.SourceHandle));
}
catch (VideoException)
{
// Do nothing
}
break;
}
case EventKind.SourceDestroyed:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
table.PutString("source", "");
table.PutStringArray("streams", new string[0]);
table.PutStringArray("modes", new string[0]);
}
break;
}
case EventKind.SourceConnected:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
// update the description too (as it may have changed)
table.PutString("description",
NativeMethods.GetSourceDescription(vidEvent.SourceHandle));
table.PutBoolean("connected", true);
}
break;
}
case EventKind.SourceDisconnected:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
table?.PutBoolean("connected", false);
break;
}
case EventKind.SourceVideoModesUpdated:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
table.PutStringArray("modes", GetSourceModeValues(vidEvent.SourceHandle));
}
break;
}
case EventKind.SourceVideoModeChanged:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
table.PutString("mode", VideoModeToString(vidEvent.Mode));
}
break;
}
case EventKind.SourcePropertyCreated:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
PutSourcePropertyValue(table, vidEvent, true);
}
break;
}
case EventKind.SourcePropertyValueUpdated:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
PutSourcePropertyValue(table, vidEvent, false);
}
break;
}
case EventKind.SourcePropertyChoicesUpdated:
{
ITable table = GetSourceTable(vidEvent.SourceHandle);
if (table != null)
{
List <string> choices = NativeMethods.GetEnumPropertyChoices(vidEvent.PropertyHandle);
table.PutStringArray($"PropertyInfo/{vidEvent.Name}/choices", choices);
}
break;
}
case EventKind.SinkSourceChanged:
case EventKind.SinkCreated:
case EventKind.SinkDestroyed:
{
UpdateStreamValues();
break;
}
case EventKind.NetworkInterfacesChanged:
{
m_addresses = NativeMethods.GetNetworkInterfaces();
break;
}
default:
break;
}
}, (EventKind)0x4fff, true);
m_tableListener = NtCore.AddEntryListener($"{PublishName}/", (uid, key, value, flags) =>
{
string relativeKey = key.Substring(PublishName.Length + 1);
int subKeyIndex = relativeKey.IndexOf('/');
if (subKeyIndex == -1)
{
return;
}
string sourceName = relativeKey.Substring(0, subKeyIndex);
VideoSource source;
if (!m_sources.TryGetValue(sourceName, out source))
{
return;
}
relativeKey = relativeKey.Substring(subKeyIndex + 1);
string propName;
if (relativeKey == "mode")
{
// reset to current mode
NtCore.SetEntryString(key, VideoModeToString(source.GetVideoMode()));
return;
}
else if (relativeKey.StartsWith("Property/"))
{
propName = relativeKey.Substring(9);
}
else if (relativeKey.StartsWith("RawProperty/"))
{
propName = relativeKey.Substring(12);
}
else
{
return;
}
VideoProperty prop = source.GetProperty(propName);
switch (prop.Kind)
{
case PropertyKind.None:
return;
case PropertyKind.Boolean:
NtCore.SetEntryBoolean(key, prop.Get() != 0);
break;
case PropertyKind.Integer:
case PropertyKind.Enum:
NtCore.SetEntryDouble(key, prop.Get());
break;
case PropertyKind.String:
NtCore.SetEntryString(key, prop.GetString());
break;
default:
return;
}
}, NotifyFlags.NotifyImmediate | NotifyFlags.NotifyUpdate);
}
