public List<int> CreatePlaylist(EmotionVector curEmo, char goalEmo, List<string> prefGenres)
{
float startVal, startAr, goalVal, goalAr;
EmotionVector goalEmotion;
switch (goalEmo)
{
case 'H':
goalEmotion = GlobalVariables.Happy;
break;
case 'A':
goalEmotion = GlobalVariables.Anger;
break;
case 'S':
goalEmotion = GlobalVariables.Sad;
break;
case 'F':
goalEmotion = GlobalVariables.Fear;
break;
default:
goalEmotion = GlobalVariables.Neutral;
break;
}
startAr = (float)curEmo.Arousal;
startVal = (float)curEmo.Valence;
goalAr = (float)goalEmotion.Arousal;
goalVal = (float)goalEmotion.Valence;
float midStartGoalAr = (startAr + goalAr) / 2;
float midStartGoalVal = (startVal + goalVal) / 2;
float sumMids = midStartGoalAr + midStartGoalVal;
string query = "SELECT song_id FROM db WHERE (genre IN (";
bool first = true;
foreach (string s in prefGenres)
{
if (first)
{
query += "\"" + s + "\"";
first = false;
}
else
{
query += ", " + "\"" + s + "\"";
}
}
query += ")) ORDER BY (abs(mean_arousal + mean_valence - " + sumMids.ToString().Replace(',','.') + ")) LIMIT 5;";
dbConnection.Open();
sql = new SQLiteCommand(query, dbConnection);
SQLiteDataReader sqlr = sql.ExecuteReader();
List<int> songIDs = new List<int>();
while(sqlr.Read())
{
songIDs.Add(sqlr.GetInt32(0));
}
dbConnection.Close();
return songIDs;
}
public void OutputIteration(int song, EmotionAnalysis analysis, EmotionVector vector)
{
using (StreamWriter sw = new StreamWriter(file, true))
{
sw.WriteLine(iterations + ";" + song + ";" + analysis.Emotion + ";" + analysis.Happy + ";" + analysis.Sad + ";" + analysis.Anger + ";" + analysis.Fear + ";" + analysis.Neutral + ";" + vector.Arousal + ";" + vector.Valence);
}
iterations++;
}
private void stopRecordingButton_Click(object sender, EventArgs e)
{
currentAnalysis = dbm.SearchDatabaseForEmotion(windows);
currentVector = ec.CalculateVector(currentAnalysis);
try
{
waveIn.StopRecording();
waveIn.Dispose();
waveIn = null;
waveChart.Series[0].Points.Clear();
}
catch { }
stopRecordingButton.Enabled = false;
startRecordingButton.Enabled = true;
this.musicPlayer = new MusicPlayer(db.CreatePlaylist(currentVector, settings.GoalEmotion, settings.GenrePreferences));
}
