private void AudioStream_OnBroadcast(object sender, EventArgs <byte[]> e)
{
switch (state)
{
case State.WaitLearn:
if (IsSilence(e.Value))
{
break;
}
Console.WriteLine("Learning!");
StopAudio(); PlayAudio("intro.wav");
time = 0;
spectrum.Clear();
spectrum.AppendSample(e.Value, time);
state = State.Learning;
break;
case State.Learning:
if (time++ >= 100)
{
Console.WriteLine("Done Learning!");
StopAudio(); PlayAudio("ready.mp3");
var fps = spectrum.GetFingerprints(learningAlbumId);
database.AddFingerprints(fps);
database.Save();
state = State.Idle;
break;
}
else
{
spectrum.AppendSample(e.Value, time);
}
break;
case State.WaitMatch:
if (IsSilence(e.Value))
{
break;
}
Console.WriteLine("Matching!");
PlayAudio("intro.wav");
time = 0;
spectrum.Clear();
spectrum.AppendSample(e.Value, time);
silent = false;
state = State.Matching;
break;
case State.Matching:
if (time++ >= 70)
{
StopAudio(); // stop intro
var mfps = spectrum.GetFingerprints(learningAlbumId);
var albumId = database.GetMatch(mfps);
if (albumId != null)
{
Console.WriteLine("Match album " + albumId);
PlayAlbum(albumId + ".m3u");
state = State.Playing;
}
else
{
Console.WriteLine("No match");
state = State.WaitMatch;
}
break;
}
spectrum.AppendSample(e.Value, time);
break;
case State.Playing:
if (silent)
{
if (!IsSilence(e.Value)) // silent -> not silent
{
player.SetVolume(1, 1);
silent = false;
}
else // still silent
{
if (stopwatch.ElapsedMilliseconds - silenceStarted > 5000)
{
Console.WriteLine("Stopping after silence!");
StopAudio();
state = State.WaitMatch;
}
}
}
else
{
if (IsSilence(e.Value)) // going silent for the first time
{
silent = true;
silenceStarted = stopwatch.ElapsedMilliseconds;
}
}
break;
case State.Idle:
break;
}
}