function parseChunkData()
{
if (isset($this->detail)) {
return;
}
$detailData = array();
$id = $this->id;
$reader = new IO_Bit();
$reader->input($this->data);
$this->data = null;
// XXX
switch ($id) {
// INFO sub-chunks
case 'ifil':
$detailData['sfVersionMajor'] = $reader->getUI16LE();
$detailData['sfVersionMinor'] = $reader->getUI16LE();
break;
case 'INAM':
$detailData['sfName'] = $this->data;
// String
break;
case 'isng':
$detailData['sfEngine'] = $this->data;
// String
break;
case 'IENG':
$detailData['sfEngineers'] = $this->data;
// String
break;
case 'ISFT':
$detailData['sfTools'] = $this->data;
// String
break;
case 'ICMT':
$detailData['Comments'] = $this->data;
// String
break;
case 'ICOP':
$detailData['Copyright'] = $this->data;
// String
break;
// sdta sub-chunks
// sdta sub-chunks
case 'smpl':
$detailData['Samples'] = $this->data;
// String
break;
// pdta sub-chunks
// pdta sub-chunks
case 'phdr':
$detailData = array();
while ($reader->hasNextData()) {
$preset = array();
$presetName = explode("", $reader->getData(20));
$preset['PresetName'] = $presetName[0];
$preset['Preset'] = $reader->getUI16LE();
$preset['Bank'] = $reader->getUI16LE();
$preset['PresetBagNdx'] = $reader->getUI16LE();
$preset['Library'] = $reader->getUI32LE();
$preset['Genre'] = $reader->getUI32LE();
$preset['MorphologyGenre'] = $reader->getUI32LE();
$detailData[] = $preset;
}
break;
case 'pbag':
$detailData = array();
while ($reader->hasNextData()) {
$presetBag = array();
$presetBag['GenNdx'] = $reader->getUI16LE();
$presetBag['ModNdx'] = $reader->getUI16LE();
$detailData[] = $presetBag;
}
break;
case 'pmod':
case 'imod':
$detailData = array();
while ($reader->hasNextData()) {
$sfMod = array();
$sfMod['sfModSrcOper'] = IO_SoundFont_Modulator::parse($reader);
$sfMod['sfModDestOper'] = $reader->getUI16LE();
$sfMod['modAmount'] = $reader->getSI16LE();
$sfMod['sfModAmtSrcOper'] = IO_SoundFont_Modulator::parse($reader);
$sfMod['sfModTransOper'] = $reader->getUI16LE();
$detailData[] = $sfMod;
}
break;
case 'pgen':
case 'igen':
$detailData = array();
while ($reader->hasNextData()) {
$detailData[] = IO_SoundFont_Generator::parse($reader);
}
break;
case 'inst':
$detailData = array();
while ($reader->hasNextData()) {
$sfInst = array();
$InstName = explode("", $reader->getData(20));
$sfInst['InstName'] = $InstName[0];
$sfInst['InstBagNdx'] = $reader->getSI16LE();
$detailData[] = $sfInst;
}
break;
case 'ibag':
$detailData = array();
while ($reader->hasNextData()) {
$presetBag = array();
$presetBag['GenNdx'] = $reader->getUI16LE();
$presetBag['ModNdx'] = $reader->getUI16LE();
$detailData[] = $presetBag;
}
break;
case 'shdr':
$detailData = array();
while ($reader->hasNextData()) {
$sfSample = array();
$SampleName = explode("", $reader->getData(20));
$sfSample['SampleName'] = $SampleName[0];
$sfSample['Start'] = $reader->getUI32LE();
$sfSample['End'] = $reader->getUI32LE();
$sfSample['StartLoop'] = $reader->getUI32LE();
$sfSample['EndLoop'] = $reader->getUI32LE();
$sfSample['SampleRate'] = $reader->getUI32LE();
$sfSample['OriginalPitch'] = $reader->getUI8();
$sfSample['PitchCorrection'] = $reader->getSI8();
$sfSample['SampleLink'] = $reader->getUI16LE();
$sfSample['SampleType'] = $reader->getUI16LE();
$detailData[] = $sfSample;
}
break;
default:
return;
// nothing to do
break;
}
$this->detail = $detailData;
}
function generatorTree($gen, $indentLevel)
{
$indentSpace = str_repeat(" ", $indentLevel);
echo $indentSpace . IO_SoundFont_Generator::string($gen) . PHP_EOL;
$genOper = $gen['sfGenOper'];
if ($genOper === 41) {
// instrument
$instIdx = $gen['Amount'];
$inst = $this->pdtaMap['inst'][$instIdx];
$this->instrumentTree($inst, $indentLevel + 1);
} else {
if ($genOper === 53) {
// sampleID
$sampleIdx = $gen['Amount'];
$sample = $this->pdtaMap['shdr'][$sampleIdx];
echo $indentSpace . IO_SoundFont_Sample::string($sample) . PHP_EOL;
}
}
}