function parseContent($tagCode, $content, $opts = array())
{
$reader = new IO_Bit();
$reader->input($content);
$this->_buttonId = $reader->getUI16LE();
$opts['tagCode'] = $tagCode;
if ($tagCode == 34) {
// DefineButton2
$this->_reservedFlags = $reader->getUIBits(7);
$this->_trackAsMenu = $reader->getUIBit();
list($offset_actionOffset, $dummy) = $reader->getOffset();
$this->_actionOffset = $reader->getUI16LE();
}
$characters = array();
while ($reader->getUI8() != 0) {
$reader->incrementOffset(-1, 0);
// 1 byte back
$characters[] = IO_SWF_Type_BUTTONRECORD::parse($reader, $opts);
}
$this->_characters = $characters;
if ($tagCode == 34) {
// DefineButton2
// TODO: skip ActionOffset - CurrentOffsetUntilCharactersField
$actions = array();
if ($this->_actionOffset > 0) {
list($offset_buttonCondition, $dummy) = $reader->getOffset();
if ($offset_actionOffset + $this->_actionOffset != $offset_buttonCondition) {
// TODO: warning
$reader->setOffset($offset_actionOffset + $this->_actionOffset, 0);
}
while (true) {
$action = IO_SWF_Type_BUTTONCONDACTION::parse($reader, $opts);
$actions[] = $action;
if ($action['CondActionSize'] == 0) {
break;
// last action
}
}
$this->_actions = $actions;
} else {
$this->_actions = null;
}
} else {
$actions = array();
while ($reader->getUI8() != 0) {
$reader->incrementOffset(-1, 0);
// 1 byte back
$actions[] = IO_SWF_Type_Action::parse($reader);
}
$this->_actions = $actions;
}
return true;
}
function _splitChunk($eoiFinish = true, $sosScan = true)
{
$bitin = new IO_Bit();
$bitin->input($this->_jpegdata);
while ($bitin->hasNextData()) {
$marker1 = $bitin->getUI8();
if ($marker1 != 0xff) {
fprintf(STDERR, "dumpChunk: marker1=0x%02X", $marker1);
return false;
}
$marker2 = $bitin->getUI8();
switch ($marker2) {
case 0xd8:
// SOI (Start of Image)
$this->_jpegChunk[] = array('marker' => $marker2, 'data' => null, 'length' => null);
continue;
case 0xd9:
// EOI (End of Image)
$this->_jpegChunk[] = array('marker' => $marker2, 'data' => null, 'length' => null);
if ($eoiFinish) {
break 2;
// while break;
}
continue;
case 0xda:
// SOS
if ($sosScan === false) {
$remainData = $bitin->getDataUntil(false);
$this->_jpegChunk[] = array('marker' => $marker2, 'data' => $remainData, 'length' => null);
break 2;
// while break;
}
case 0xd0:
case 0xd1:
case 0xd2:
case 0xd3:
// RST
// RST
case 0xd4:
case 0xd5:
case 0xd6:
case 0xd7:
// RST
list($chunk_data_offset, $dummy) = $bitin->getOffset();
while (true) {
$next_marker1 = $bitin->getUI8();
if ($next_marker1 != 0xff) {
continue;
}
$next_marker2 = $bitin->getUI8();
if ($next_marker2 == 0x0) {
continue;
}
$bitin->incrementOffset(-2, 0);
// back from next marker
list($next_chunk_offset, $dummy) = $bitin->getOffset();
$length = $next_chunk_offset - $chunk_data_offset;
$bitin->setOffset($chunk_data_offset, 0);
$this->_jpegChunk[] = array('marker' => $marker2, 'data' => $bitin->getData($length), 'length' => null);
break;
}
break;
default:
$length = $bitin->getUI16BE();
$this->_jpegChunk[] = array('marker' => $marker2, 'data' => $bitin->getData($length - 2), 'length' => $length);
continue;
}
}
}
function parseDataChunks(&$reader)
{
$chunks = array();
while ($reader->hasNextData(8)) {
$chunk = array();
$chunkID = $reader->getData(4);
$size = $reader->getUI32BE();
$chunk['ID'] = $chunkID;
$chunkID_3byte = substr($chunkID, 0, 3);
$chunkID_4th_value = ord($chunkID[3]);
switch ($chunkID_3byte) {
case 'Dch':
$chunk['ID'] = $chunkID_3byte;
$chunk['CodeType'] = $chunkID_4th_value;
break;
case 'MTR':
case 'ATR':
case 'GTR':
$chunk['ID'] = $chunkID_3byte;
$chunk['TrackNumber'] = $chunkID_4th_value;
break;
}
$chunk['Size'] = $size;
switch (substr($chunkID, 0, 3)) {
case 'CNT':
// CNTI: Contents Information Chunk
$chunk['Contents Class'] = $reader->getUI8();
$chunk['Contents Type'] = $reader->getUI8();
$chunk['Contents Code Type'] = $reader->getUI8();
$chunk['Copy Status'] = $reader->getUI8();
$chunk['Copy Counts'] = $reader->getUI8();
if ($size > 5) {
$chunk['Option'] = $reader->getData($size - 5);
}
break;
case 'MTR':
// MTR*: Score Track Chunk
$chunk['Format Type'] = $reader->getUI8();
$chunk['Sequence Type'] = $reader->getUI8();
$chunk['Timebase D'] = $reader->getUI8();
$chunk['Timebase G'] = $reader->getUI8();
$chunk['Channnel Status'] = $reader->getUI16BE();
$data = $reader->getData($size - 6);
$reader_chunkdata = new IO_Bit();
$reader_chunkdata->input($data);
$this->seekToAlphabet($reader_chunkdata);
$chunk[$structure_type] = $this->parseDataChunks($reader_chunkdata);
break;
case 'Mts':
// Mtsu, Mtsq, Mts
$data = $reader->getData($size);
$reader_tracks = new IO_Bit();
$reader_tracks->input($data);
switch ($chunkID) {
case 'Mtsu':
// Score Track Setup Data
// Score Track Setup Data
case 'Mtsq':
// Score Track Sequence Data
$tracks = array();
while ($reader_tracks->hasNextData(4)) {
$end_check = $reader_tracks->getUI32BE();
if ($end_check == 0) {
break;
}
$reader_tracks->incrementOffset(-4, 0);
$track = array();
// Duration
if ($chunkID != 'Mtsu') {
// Mtsu は Duration 無し
$duration = $reader_tracks->getUI8();
if ($duration & 0x80) {
$duration = ($duration & 0x7f) << 8;
$duration |= $reader_tracks->getUI8();
}
$track['Duration'] = $duration;
}
// Event
$event = $reader_tracks->getUI8();
$eventData = array();
if ($event != 0) {
$eventData['Type'] = 'Note Message';
$eventData['GetTime'] = $reader_tracks->getUI8();
// Option ???
} else {
$data1 = $reader_tracks->getUI8();
$eventData['Channel'] = $data1 >> 6;
if (($data1 & 0xf) == 0) {
$eventData['Type'] = 'Program change';
} elseif (($data1 & 0xf) == 1) {
$eventData['Type'] = 'Bank Select';
} else {
$msg = sprintf("Unknow Event Data#1=0x%02x", $data1);
// throw new Exception($msg);
printf($msg . "\n");
break 2;
}
$eventData['Value'] = $reader_tracks->getUI8();
}
$track['event'] = $tracks[] = $track;
}
$chunk['Tracks'] = $tracks;
break 2;
}
default:
$data = $reader->getData($size);
if ($structure_type = $this->nestedChunkIDSize($chunkID)) {
$reader_chunkdata = new IO_Bit();
$reader_chunkdata->input($data);
$method = 'parseData' . $structure_type;
$chunk[$structure_type] = $this->{$method}($reader_chunkdata);
} else {
$chunk['Data'] = $data;
}
break;
}
// var_dump($chunk);
$chunks[] = $chunk;
}
return $chunks;
}
