/**
* @param array $spec
*
* @return int
*/
public function init(array $spec)
{
$dl = Specifications::rsDataCodes1($spec);
$el = Specifications::rsEccCodes1($spec);
$rs = Rs::initRs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
$blockNo = 0;
$dataPos = 0;
$eccPos = 0;
for ($i = 0; $i < Specifications::rsBlockNum1($spec); $i++) {
$ecc = array_slice($this->eccCode, $eccPos);
$this->rsBlocks[$blockNo] = new Block($dl, array_slice($this->dataCode, $dataPos), $el, $ecc, $rs);
$this->eccCode = array_merge(array_slice($this->eccCode, 0, $eccPos), $ecc);
$dataPos += $dl;
$eccPos += $el;
$blockNo++;
}
if (Specifications::rsBlockNum2($spec) == 0) {
return 0;
}
$dl = Specifications::rsDataCodes2($spec);
$el = Specifications::rsEccCodes2($spec);
$rs = Rs::initRs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
if ($rs == null) {
return -1;
}
for ($i = 0; $i < Specifications::rsBlockNum2($spec); $i++) {
$ecc = array_slice($this->eccCode, $eccPos);
$this->rsBlocks[$blockNo] = new Block($dl, array_slice($this->dataCode, $dataPos), $el, $ecc, $rs);
$this->eccCode = array_merge(array_slice($this->eccCode, 0, $eccPos), $ecc);
$dataPos += $dl;
$eccPos += $el;
$blockNo++;
}
return 0;
}
