private void Session_RDSFrameReceivedEvent(Framework.RDSCommand frame, RDSSession session)
{
//Get type
if (frame.GetType() != typeof(BasicDataRDSCommand))
{
return;
}
BasicDataRDSCommand cmd = (BasicDataRDSCommand)frame;
//Set data in buffer
stationNameBuffer[cmd.stationNameIndex] = cmd.letterA;
stationNameBuffer[cmd.stationNameIndex + 1] = cmd.letterB;
//Set chunk flag
if (cmd.stationNameIndex == 0)
{
_firstChunkDecoded = true;
}
//Update final station name, if any
if (cmd.stationNameIndex == 6 && _firstChunkDecoded)
{
stationName = new string(stationNameBuffer);
RDSFeatureStationName_StationNameUpdatedEvent?.Invoke(stationName);
}
//Send event
RDSFeatureStationName_StationBufferUpdatedEvent?.Invoke(stationNameBuffer, cmd.stationNameIndex);
}
private void Session_RDSFrameReceivedEvent(Framework.RDSCommand frame, RDSSession session)
{
//Get type
if (frame.GetType() != typeof(RadioTextRDSCommand))
{
return;
}
RadioTextRDSCommand cmd = (RadioTextRDSCommand)frame;
//Set if the clear flag has been changed
//http://www.interactive-radio-system.com/docs/EN50067_RDS_Standard.pdf defines that a screen clear should happen
if (_lastClearFlag != cmd.clear)
{
//Clear the buffer
for (var i = 0; i < textBuffer.Length; i++)
{
textBuffer[i] = (char)0x00;
}
//Set the buffer
_lastClearFlag = cmd.clear;
_firstChunkDecoded = false;
//Send event
RDSFeatureRadioText_RadioTextClearedUpdatedEvent?.Invoke();
}
else
{
//Set data in buffer
textBuffer[cmd.offset + 0] = cmd.letterA;
textBuffer[cmd.offset + 1] = cmd.letterB;
textBuffer[cmd.offset + 2] = cmd.letterC;
textBuffer[cmd.offset + 3] = cmd.letterD;
//Set chunk flag
if (cmd.offset == 0)
{
_firstChunkDecoded = true;
}
//Update final station name, if any
//http://www.interactive-radio-system.com/docs/EN50067_RDS_Standard.pdf defines that the final message must end with \r. We use that to determine when the message is fully written
if ((cmd.letterA == '\r' || cmd.letterB == '\r' || cmd.letterC == '\r' || cmd.letterD == '\r') && _firstChunkDecoded)
{
radioText = new string(textBuffer);
RDSFeatureRadioText_RadioTextUpdatedEvent?.Invoke(radioText);
}
}
//Send event
RDSFeatureRadioText_RadioTextBufferUpdatedEvent?.Invoke(textBuffer, cmd.offset, 4);
}
