function decode_stream_data($stream)
{
$filters = $stream->data['/Filter'];
if (!$filters) {
$filters = array();
}
if (count($filters) && !is_a($filters[0], 'NameObject')) {
$filters = array($filters);
}
$data = $stream->stream;
foreach ($filters as $filter_type) {
if ($filter_type == '/FlateDecode') {
$data = FlateDecode::decode($data, $stream->data['/DecodeParms']);
}
}
return $data;
}
function flate_encode()
{
if (in_array('/Filter', array_keys($this->data))) {
$f = $this->data['/Filter'];
if (is_array($f)) {
array_unshift($f, new NameObject('/FlateDecode'));
} else {
$newf = array();
$newf[] = new NameObject('/FlateDecode');
$newf[] = $f;
$f = $newf;
}
} else {
$f = new NameObject('/FlateDecode');
}
$retval = new EncodedStreamObject();
$filter = new NameObject('/Filter');
$retval[$filter] = $f;
$retval->stream = FlateDecode::encode($this->stream);
return $retval;
}
