/**
* Reads the magic information from given magic file.
*
* @param string $filename The path to the magic file.
*/
public function __construct($filename)
{
$reader = new HausDesign_Io_FileReader($filename);
$this->_magic = $reader->read($reader->getSize());
}
/**
* Removes the ID3v2 tag altogether.
*
* @param string $filename The path to the file.
*/
public static function remove($filename)
{
if ($filename instanceof HausDesign_Io_Reader) {
$reader =& $filename;
} else {
require_once 'HausDesign/Io/FileReader.php';
$reader = new HausDesign_Io_FileReader($filename, 'r+b');
}
$fileSize = $reader->getSize();
if ($reader->read(3) == 'ID3') {
$header = new HausDesign_Media_Id3_Header($reader);
$tagSize = 10 + $header->getSize();
} else {
return;
}
$fd = $reader->getFileDescriptor();
for ($i = 0; $tagSize + $i * 1024 < $fileSize; $i++) {
fseek($fd, $tagSize + $i * 1024);
$buffer = fread($fd, 1024);
fseek($fd, $i * 1024);
$bytes = fwrite($fd, $buffer, 1024);
}
ftruncate($fd, $fileSize - $tagSize);
}
/**
* Removes the ID3v1 tag altogether.
*
* @param string $filename The path to the file.
*/
public static function remove($filename)
{
$reader = new HausDesign_Io_FileReader($filename, 'r+b');
$reader->setOffset(-128);
if ($reader->read(3) == 'TAG') {
ftruncate($reader->getFileDescriptor(), $reader->getSize() - 128);
}
}
