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<?php |
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declare(strict_types=1); |
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namespace Soluble\MediaTools\Video\Adapter\Validator; |
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use Soluble\MediaTools\Video\Exception\ParamValidationException; |
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use Soluble\MediaTools\Video\VideoConvertParamsInterface; |
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/** |
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* To get better error reporting, we try to fail early (instead of at the shell exec level) |
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* Here's a starter class to add some common validation, use it as a base, will need |
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* refactor when more rules are added. |
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*/ |
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class FFMpegParamValidator |
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{ |
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/** |
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* @var VideoConvertParamsInterface |
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*/ |
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protected $params; |
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public function __construct(VideoConvertParamsInterface $conversionParams) |
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{ |
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$this->params = $conversionParams; |
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} |
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/** |
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* @throws ParamValidationException |
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*/ |
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public function validate(): void |
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{ |
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$this->ensureValidCrf(); |
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} |
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/** |
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* Ensure that is CRF have been set, values for VP9 and H264 are in valid ranges. |
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* |
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* @throws ParamValidationException |
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*/ |
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protected function ensureValidCrf(): void |
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{ |
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$crf = $this->params->getParam(VideoConvertParamsInterface::PARAM_CRF, 0); |
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if ($crf !== null) { |
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// Check allowed values for CRF |
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$codec = $this->params->getParam(VideoConvertParamsInterface::PARAM_VIDEO_CODEC, ''); |
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if (false !== mb_stripos($codec, 'vp9') && ($crf < 0 || $crf > 63)) { |
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throw new ParamValidationException( |
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sprintf( |
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'Invalid value for CRF, \'%s\' requires a number between 0 and 63: %s given.', |
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$codec, |
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$crf |
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) |
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); |
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} elseif (false !== mb_stripos($codec, '264') && ($crf < 0 || $crf > 51)) { |
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throw new ParamValidationException( |
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sprintf( |
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'Invalid value for CRF, \'%s\' requires a number between 0 and 61: %s given.', |
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$codec, |
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$crf |
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) |
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); |
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} |
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} |
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} |
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} |
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soluble-io /
soluble-mediatools
