/* //play short tone on cennection
* private void websocketClient_Opened(object sender, EventArgs e)
* {
*
* websocketClient.Send("2000");
* Thread.Sleep(333);
* websocketClient.Send("2000");
*
* }
*/
private void websocketClient_MessageReceived(object sender, MessageReceivedEventArgs e)
{
if (!isPlaying)
{
byte[] GeneratedSnd = CreateSound(int.Parse(e.Message));
track = new AudioTrack(Stream.Music, 8000, ChannelOut.Mono, Encoding.Pcm16bit, 80000, AudioTrackMode.Static);
prevTone = int.Parse(e.Message);
isPlaying = !isPlaying;
track.Write(GeneratedSnd, 0, 80000);
try
{
track.Play();
}
catch (Java.Lang.IllegalStateException)
{
track.Flush();
track.Release();
}
}
else if (isPlaying && prevTone != int.Parse(e.Message))
{
isPlaying = !isPlaying;
track.Stop();
track.Flush();
track.Release();
byte[] GeneratedSnd = CreateSound(int.Parse(e.Message));
track = new AudioTrack(Stream.Music, 8000, ChannelOut.Mono, Encoding.Pcm16bit, 80000, AudioTrackMode.Static);
prevTone = int.Parse(e.Message);
isPlaying = !isPlaying;
track.Write(GeneratedSnd, 0, 80000);
try
{
track.Play();
}
catch (Java.Lang.IllegalStateException)
{
track.Flush();
track.Release();
}
}
else
{
isPlaying = !isPlaying;
track.Stop();
track.Flush();
track.Release();
}
}
public async Task PlayOnce(System.IO.Stream stream)
{
await Task.Run(() =>
{
try
{
int sampleRate = 16000;
var channel = ChannelOut.Mono;
var encoding = Android.Media.Encoding.Pcm16bit;
var buffSize = AudioTrack.GetMinBufferSize(sampleRate, channel, encoding);
if (_playOnceAudioTrack == null)
{
_playOnceAudioTrack = new AudioTrack(Stream.Music, sampleRate, channel, encoding, buffSize, AudioTrackMode.Stream);
}
_playOnceAudioTrack.Stop();
_playOnceAudioTrack.Flush();
var buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
_playOnceAudioTrack.Play();
_playOnceAudioTrack.Write(buffer, 0, buffer.Length);
}
catch (Exception ex)
{
}
});
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
Button button = FindViewById <Button>(Resource.Id.button1);
button.Text = ("Morse");
//Client connectiong to the server
Client client = new Client();
client.Setup("ws://192.168.0.14:8001", "basic", WebSocketVersion.Rfc6455);
client.Start();
Random rnd = new Random();
int freq = rnd.Next(100, 2600);
byte[] GeneratedSnd = Client.CreateSound(freq);
button.Click += delegate
{
//if handshaking does not happend, trying
if (!client.isConncted())
{
client.Setup("ws://192.168.0.14:8001", "basic", WebSocketVersion.Rfc6455);
client.Start();
}
client.SendTone(freq.ToString());
//playing short tone
try
{
AudioTrack track = new AudioTrack(Stream.Music, 8000, ChannelOut.Mono, Encoding.Pcm16bit, 8000, AudioTrackMode.Static);
track.Write(GeneratedSnd, 0, (8000 / 3));
track.Play();
Thread.Sleep(333);
client.SendTone(freq.ToString());
track.Flush();
track.Release();
//withou flush and realse only 32 track play possible
}
catch (Java.Lang.IllegalStateException)
{
client.SendTone(freq.ToString());
}
};
button.LongClick += delegate
{
if (!client.isConncted())
{
client.Setup("ws://192.168.0.14:8001", "basic", WebSocketVersion.Rfc6455);
client.Start();
}
client.SendTone(freq.ToString());
//playing long tone
try
{
AudioTrack track = new AudioTrack(Stream.Music, 8000, ChannelOut.Mono, Encoding.Pcm16bit, 8000, AudioTrackMode.Static);
track.Write(GeneratedSnd, 0, 8000);
track.Play();
Thread.Sleep(1000);
client.SendTone(freq.ToString());
track.Flush();
track.Release();
}
catch (Java.Lang.IllegalStateException)
{
client.SendTone(freq.ToString());
}
};
}
Java.Lang.Object DoRun()
{
player.vorbis_buffer.SeekRaw(0);
Status = PlayerStatus.Playing;
x = 0;
total = 0;
audio.Play();
while (!finish)
{
if (pause)
{
pause = false;
audio.Pause();
pause_handle.WaitOne();
audio.Play();
}
long size = player.vorbis_buffer.Read(buffer, 0, buffer.Length);
if (size <= 0 || size > buffer.Length)
{
finish = true;
if (size < 0)
{
player.OnPlayerError("vorbis error : {0}", size);
}
else if (size > buffer.Length)
{
player.OnPlayerError("buffer overflow : {0}", size);
}
break;
}
if (size + total >= loop_end)
{
size = loop_end - total; // cut down the buffer after loop
}
total += size;
if (++x % 30 == 0)
{
player.OnProgress(total);
}
// downgrade bitrate
int actualSize = (int)size * 2 / CompressionRate;
for (int i = 1; i < actualSize; i++)
{
buffer [i] = buffer [i * CompressionRate / 2 + (CompressionRate / 2) - 1];
}
if (size > 0)
{
audio.Flush();
audio.Write(buffer, 0, actualSize);
}
// loop back to LOOPSTART
if (total >= loop_end)
{
player.vorbis_buffer.SeekPcm(loop_start / 4); // also faked
player.OnLoop(loop_start);
total = loop_start;
}
}
audio.Flush();
audio.Stop();
player.OnComplete();
Status = PlayerStatus.Stopped;
return(null);
}
