/**
* Constructs the Ogg class with given file.
*
* @param string $filename The path to the file.
* @throws Zend_Io_Exception if an error occur in stream handling.
* @throws Zend_Media_Ogg_Exception if an error occurs in Ogg bitstream reading.
*/
public function __construct($filename)
{
$reader = new Zend_Io_FileReader($filename);
$fileSize = $reader->getSize();
while ($reader->getOffset() < $fileSize) {
$this->_pages[] = array('offset' => $reader->getOffset(), 'page' => $page = new Zend_Media_Ogg_Page($reader));
$this->_size += $page->getPageSize();
$reader->skip($page->getPageSize());
}
$reader->setOffset($this->_pages[$this->_currentPageNumber]['offset'] + $this->_pages[$this->_currentPageNumber]['page']->getHeaderSize());
$this->_fd = $reader->getFileDescriptor();
}
