/**
* @since 1.0
* @uses parseTrackHeader()
* @uses getRawTrackHeader()
* @uses TrackHeader::getSize()
* @uses DeltaParser::parse()
* @uses Chunk::getLength()
* @uses EventParser::parse()
* @uses checkTrackLength()
*
* @throws {@link ParseException}
* @throws {@link StateException}
* @return Chunk
*/
public function parse()
{
$state = $this->getState();
$chunk = null;
switch ($state) {
case ParseState::TRACK_HEADER:
$chunk = $this->parseTrackHeader($this->getRawTrackHeader());
$this->parsedTrackLength = 0;
$this->expectedTrackLength = $chunk->getSize();
$this->setState(ParseState::DELTA);
break;
case ParseState::DELTA:
$chunk = $this->deltaParser->parse();
$this->setState(ParseState::EVENT);
$this->checkTrackLength($chunk->getLength());
break;
case ParseState::EVENT:
$chunk = $this->eventParser->parse();
$this->checkTrackLength($chunk->getLength());
if ($this->getParsedTrackLength() === $this->getExpectedTrackLength()) {
if (!$chunk instanceof Event\EndOfTrackEvent) {
throw new ParseException('Expected end of track');
} else {
$this->setState(ParseState::TRACK_HEADER);
}
} else {
$this->setState(ParseState::DELTA);
}
break;
default:
throw new StateException('Invalid state: ' . $state);
}
return $chunk;
}
public function testGetDeltaChunk()
{
$this->obj = new DeltaParser();
$chunk = $this->obj->getDeltaChunk(10);
$this->assertInstanceOf('Tmont\\Midi\\Delta', $chunk);
}
