Current File : /home/tjamichg/cursos.tjamich.gob.mx/vendor/alchemy/ghostscript/src/Ghostscript/Transcoder.php
<?php
namespace Ghostscript;
use Alchemy\BinaryDriver\AbstractBinary;
use Psr\Log\LoggerInterface;
use Ghostscript\Exception\RuntimeException;
use Alchemy\BinaryDriver\Configuration;
use Alchemy\BinaryDriver\ConfigurationInterface;
use Alchemy\BinaryDriver\Exception\ExecutionFailureException;
class Transcoder extends AbstractBinary
{
/**
* {@inheritdoc}
*/
public function getName()
{
return 'ghostscript-transcoder';
}
/**
* Transcode a PDF to an image.
*
* @param string $input The path to the input file.
* @param string $destinationThe path to the output file.
*
* @return Transcoder
*
* @throws RuntimeException In case of failure
*/
public function toImage($input, $destination)
{
try {
$this->command(array(
'-sDEVICE=jpeg',
'-dNOPAUSE',
'-dBATCH',
'-dSAFER',
'-sOutputFile=' . $destination,
$input,
));
} catch (ExecutionFailureException $e) {
throw new RuntimeException('Ghostscript was unable to transcode to Image', $e->getCode(), $e);
}
if (!file_exists($destination)) {
throw new RuntimeException('Ghostscript was unable to transcode to Image');
}
return $this;
}
/**
* Transcode a PDF to another PDF
*
* @param string $input The path to the input file.
* @param string $destination The path to the output file.
* @param integer $pageStart The number of the first page.
* @param integer $pageQuantity The number of page to include.
*
* @return Transcoder
*
* @throws RuntimeException In case of failure
*/
public function toPDF($input, $destination, $pageStart, $pageQuantity)
{
try {
$this->command(array(
'-sDEVICE=pdfwrite',
'-dNOPAUSE',
'-dBATCH',
'-dSAFER',
sprintf('-dFirstPage=%d', $pageStart),
sprintf('-dLastPage=%d', ($pageStart + $pageQuantity - 1)),
'-sOutputFile=' . $destination,
$input,
));
} catch (ExecutionFailureException $e) {
throw new RuntimeException('Ghostscript was unable to transcode to PDF', $e->getCode(), $e);
}
if (!file_exists($destination)) {
throw new RuntimeException('Ghostscript was unable to transcode to PDF');
}
return $this;
}
/**
* Creates a Transcoder.
*
* @param array|ConfigurationInterface $configuration
* @param LoggerInterface $logger
*
* @return Transcoder
*/
public static function create($configuration = array(), LoggerInterface $logger = null)
{
if (!$configuration instanceof ConfigurationInterface) {
$configuration = new Configuration($configuration);
}
$binaries = $configuration->get('gs.binaries', array('gs'));
return static::load($binaries, $logger, $configuration);
}
}
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