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<?php |
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declare(strict_types=1); |
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namespace Soluble\MediaTools\Video\Filter; |
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use Soluble\MediaTools\Common\Exception\UnsupportedParamValueException; |
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use Soluble\MediaTools\Video\Exception\InvalidArgumentException; |
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use Soluble\MediaTools\Video\Filter\Type\FFMpegVideoFilterInterface; |
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use Soluble\MediaTools\Video\Filter\Type\VideoFilterInterface; |
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class VideoFilterChain implements FFMpegVideoFilterInterface, \Countable |
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{ |
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/** @var VideoFilterInterface[] */ |
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private $filters = []; |
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/** |
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* @param VideoFilterInterface[] $filters |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function __construct(array $filters = []) |
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{ |
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if ($filters === []) { |
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return; |
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} |
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$this->addFilters($filters); |
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} |
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/** |
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* @return VideoFilterInterface[] |
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*/ |
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public function getFilters(): array |
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{ |
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return $this->filters; |
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} |
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public function addFilter(VideoFilterInterface $filter): void |
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{ |
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$this->filters[] = $filter; |
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} |
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public function count(): int |
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{ |
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return count($this->filters); |
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} |
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/** |
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* @param VideoFilterInterface[] $filters |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function addFilters(array $filters): void |
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{ |
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foreach ($filters as $filter) { |
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if (!$filter instanceof VideoFilterInterface) { |
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throw new InvalidArgumentException(sprintf( |
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'Cannot add filter \'%s\', it must not implement %s', |
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is_object($filter) ? get_class($filter) : gettype($filter), |
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VideoFilterInterface::class |
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)); |
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} |
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$this->filters[] = $filter; |
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} |
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$this->filters = $this->filters + $filters; |
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} |
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/** |
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* @throws UnsupportedParamValueException |
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*/ |
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public function getFFmpegCLIValue(): string |
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{ |
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$values = []; |
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foreach ($this->filters as $filter) { |
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if (!$filter instanceof FFMpegVideoFilterInterface) { |
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throw new UnsupportedParamValueException( |
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sprintf( |
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'Filter \'%s\' have not been made compatible with FFMpeg', |
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1 |
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get_class($filter) |
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) |
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); |
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} |
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$val = $filter->getFFmpegCLIValue(); |
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if ($val === '') { |
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continue; |
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} |
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$values[] = $val; |
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} |
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if (count($values) === 0) { |
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return ''; |
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} |
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return implode(',', $values); |
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} |
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} |
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soluble-io /
soluble-mediatools
