function parseContent($tagCode, $content, $opts = array())
{
$reader = new IO_Bit();
$reader->input($content);
if ($tagCode != 8) {
// ! JPEGTable
$this->_CharacterID = $reader->getUI16LE();
}
if ($tagCode == 35) {
// DefgineBitsJPEG3
$alphaDataOffset = $reader->getUI32LE();
$this->_AlphaDataOffset = $alphaDataOffset;
}
if ($tagCode != 35) {
// ! DefgineBitsJPEG3
$this->_JPEGData = $reader->getDataUntil(false);
} else {
$this->_JPEGData = $reader->getData($alphaDataOffset);
$this->_ZlibBitmapAlphaData = $reader->getDataUntil(false);
}
}
function parseContent($tagCode, $content, $opts = array())
{
$reader = new IO_Bit();
$reader->input($content);
$this->_CharacterID = $reader->getUI16LE();
$bitmapFormat = $reader->getUI8();
$this->_BitmapFormat = $bitmapFormat;
$this->_BitmapWidth = $reader->getUI16LE();
$this->_BitmapHeight = $reader->getUI16LE();
if ($bitmapFormat == 3) {
$this->_BitmapColorTableSize = $reader->getUI8() + 1;
}
$this->_ZlibBitmapData = $reader->getDataUntil(false);
}
function parseContent($tagCode, $content, $opts = array())
{
$reader = new IO_Bit();
$reader->input($content);
$this->SoundId = $reader->getUI16LE();
// ---
$this->SoundFormat = $reader->getUIBits(4);
$this->SoundRate = $reader->getUIBits(2);
$this->SoundSize = $reader->getUIBit();
$this->SoundType = $reader->getUIBit();
// ---
$this->SoundSampleCount = $reader->getUI32LE();
$this->SoundData = $reader->getDataUntil(false);
}
function _splitChunk($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;
}
}
}
