public void ProcessMidiEvents(Synthesizer synthesizer)
{
if (sequencer == null)
{
sequencer = new MidiFileSequencer(synthesizer);
sequencer.Play(midi, loop);
}
sequencer.ProcessEvents();
}
protected override bool OnGetData(out short[] samples)
{
lock (mutex)
{
var t = 0;
for (var i = 0; i < blocksPerBatch; i++)
{
sequencer.ProcessEvents();
synthesizer.Render(left, right);
for (var j = 0; j < left.Length; j++)
{
var sampleLeft = (int)(32768 * left[j]);
if (sampleLeft < short.MinValue)
{
sampleLeft = short.MinValue;
}
else if (sampleLeft > short.MaxValue)
{
sampleLeft = short.MaxValue;
}
var sampleRight = (int)(32768 * right[j]);
if (sampleRight < short.MinValue)
{
sampleRight = short.MinValue;
}
else if (sampleRight > short.MaxValue)
{
sampleRight = short.MaxValue;
}
batch[t++] = (short)sampleLeft;
batch[t++] = (short)sampleRight;
}
}
samples = batch;
}
return(true);
}