private void btnGenerate_Click(object sender, EventArgs e)
{
if (!ValidateInput())
{
return;
}
_start = dateStart.Value.ToUniversalTime();
_senderId = txtSender.Text;
_length = ZeroPad(comboLengthHour.Text, 2) + ZeroPad(comboLengthMinutes.Text, 2);
var newMessage = new EASMessage(_selectedOriginator.Id, _selectedAlertCode.Id,
Regions, _length, _start, _senderId);
if (String.IsNullOrEmpty(txtOutputFile.Text))
{
MessageBox.Show("You must enter a valid output file name for the EAS audio message.", "Unable to create EAS Message", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
EASEncoder.EASEncoder.CreateNewMessage(newMessage, chkEbsTones.Checked, chkNwsTone.Checked,
formatAnnouncement(txtAnnouncement.Text));
}
public static void CreateNewMessage(EASMessage message, bool ebsTone = true, bool nwsTone = false,
string announcement = "")
{
//headerByteCache = new Dictionary<decimal, List<int>>();
_useEbsTone = ebsTone;
_useNwsTone = nwsTone;
_announcement = announcement;
_headerSamples = new int[0];
var byteArray = Encoding.Default.GetBytes(message.ToSameHeaderString());
var volume = 5000;
var byteSpec = new List<SameWavBit>();
byte thisByte;
SAMEAudioBit thisBit;
for (var i = 0; i < byteArray.Length; i++)
{
thisByte = byteArray[i];
for (var e = 0; e < 8; e++)
{
thisBit = ((thisByte & (short) Math.Pow(2, e)) != 0 ? Mark : Space);
byteSpec.Add(new SameWavBit(thisBit.frequency, thisBit.length, volume));
}
}
foreach (var currentSpec in byteSpec)
{
int[] returnedBytes = RenderTone(currentSpec);
int[] c = new int[_headerSamples.Length + returnedBytes.Length];
Array.Copy(_headerSamples, 0, c, 0, _headerSamples.Length);
Array.Copy(returnedBytes, 0, c, _headerSamples.Length, returnedBytes.Length);
_headerSamples = c;
}
_eomSamples = new int[0];
byteArray = Encoding.Default.GetBytes(message.ToSameEndOfMessageString());
volume = 5000;
byteSpec = new List<SameWavBit>();
foreach (var t in byteArray)
{
thisByte = t;
for (var e = 0; e < 8; e++)
{
thisBit = ((thisByte & (short) Math.Pow(2, e)) != 0 ? Mark : Space);
byteSpec.Add(new SameWavBit(thisBit.frequency, thisBit.length, volume));
}
}
foreach (var currentSpec in byteSpec)
{
int[] returnedBytes = RenderTone(currentSpec);
int[] c = new int[_eomSamples.Length + returnedBytes.Length];
Array.Copy(_eomSamples, 0, c, 0, _eomSamples.Length);
Array.Copy(returnedBytes, 0, c, _eomSamples.Length, returnedBytes.Length);
_eomSamples = c;
}
//1 second silence
_silenceSamples = new List<int>();
while (_silenceSamples.Count < 176400)
{
_silenceSamples.Add(0);
}
_ebsTonesStream = GenerateEbsTones();
_ebsToneSamples = _ebsTonesStream.Length;
_nwsTonesStream = GenerateNwsTones();
_nwstoneSamples = _nwsTonesStream.Length;
_totalSamples = (TotalHeaderSamples*3) + (totalSilenceSamples*7) + (TotalEomSamples*3) + (_ebsToneSamples*8) +
(_nwstoneSamples*8);
_announcementStream =
GenerateVoiceAnnouncement(announcement);
_announcementSamples = _announcementStream.Length;
GenerateWavFile();
GenerateMp3File();
}
private void button1_Click(object sender, EventArgs e)
{
if (player != null)
{
player.Stop();
return;
}
if (!ValidateInput())
{
return;
}
_start = dateStart.Value.ToUniversalTime();
_senderId = txtSender.Text;
_length = ZeroPad(comboLengthHour.Text, 2) + ZeroPad(comboLengthMinutes.Text, 2);
var newMessage = new EASMessage(_selectedOriginator.Id, _selectedAlertCode.Id,
Regions, _length, _start, _senderId);
var messageStream = EASEncoder.EASEncoder.GetMemoryStreamFromNewMessage(newMessage, chkEbsTones.Checked,
chkNwsTone.Checked, formatAnnouncement(txtAnnouncement.Text));
btnGeneratePlay.Text = "Stop Playing";
WaveStream mainOutputStream = new RawSourceWaveStream(messageStream, new WaveFormat());
var volumeStream = new WaveChannel32(mainOutputStream);
volumeStream.PadWithZeroes = false;
player = new WaveOutEvent();
player.PlaybackStopped += (o, args) =>
{
player.Dispose();
player = null;
btnGeneratePlay.Text = "Generate && Play";
};
player.Init(volumeStream);
player.Play();
}
