private function parseMessage($trackNumber, $tick, MidiMessage $message)
{
$parsedTick = $this->parseTick($tick + $this->resolution);
//NOTE ON
if ($message->getType() == MidiMessage::TYPE_SHORT && $message->getCommand() == MidiMessage::NOTE_ON) {
$this->parseNoteOn($trackNumber, $parsedTick, $message->getData());
} else {
if ($message->getType() == MidiMessage::TYPE_SHORT && $message->getCommand() == MidiMessage::NOTE_OFF) {
$this->parseNoteOff($trackNumber, $parsedTick, $message->getData());
} else {
if ($message->getType() == MidiMessage::TYPE_SHORT && $message->getCommand() == MidiMessage::PROGRAM_CHANGE) {
$this->parseProgramChange($message->getData());
} else {
if ($message->getType() == MidiMessage::TYPE_SHORT && $message->getCommand() == MidiMessage::CONTROL_CHANGE) {
$this->parseControlChange($message->getData());
} else {
if ($message->getType() == MidiMessage::TYPE_SHORT && $message->getCommand() == MidiMessage::PITCH_BEND) {
$this->parsePitchBend($message->getData());
} else {
if ($message->getType() == MidiMessage::TYPE_META && $message->getCommand() == MidiMessage::TIME_SIGNATURE_CHANGE) {
$this->parseTimeSignature($parsedTick, $message->getData());
} else {
if ($message->getType() == MidiMessage::TYPE_META && $message->getCommand() == MidiMessage::TEMPO_CHANGE) {
$this->parseTempo($parsedTick, $message->getData());
} else {
$logMessage = sprintf('track=%d, tick=%d, type=%s, command=%x, data=array(%s)', $trackNumber, $tick, $message->getType(), $message->getCommand(), implode(', ', $message->getData()));
Log::add($logMessage, 'MIDI_SKIPPED_MESSAGE');
}
}
}
}
}
}
}
}
protected function writeMetaMessage(MidiMessage $message)
{
$length = 0;
$data = $message->getData();
$this->writeUnsignedBytes(array(255));
$this->writeUnsignedBytes(array($message->getCommand()));
$length += 2;
if (is_array($data)) {
$length += $this->writeVariableLengthQuantity(count($data));
$this->writeUnsignedBytes($data);
$length += count($data);
} else {
$length += $this->writeVariableLengthQuantity(strlen($data));
$this->writeUnsignedBytes(array($data));
$length += strlen($data);
}
return $length;
}
