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<?php |
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declare(strict_types=1); |
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/** |
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* @see https://github.com/soluble-io/soluble-mediatools for the canonical repository |
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* |
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* @copyright Copyright (c) 2018-2020 Sébastien Vanvelthem. (https://github.com/belgattitude) |
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* @license https://github.com/soluble-io/soluble-mediatools/blob/master/LICENSE.md MIT |
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*/ |
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namespace Soluble\MediaTools\Video\Filter; |
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use Soluble\MediaTools\Video\Exception\ParamValidationException; |
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use Soluble\MediaTools\Video\Filter\Type\FFMpegVideoFilterInterface; |
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final class ScaleFilter implements FFMpegVideoFilterInterface |
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{ |
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public const OPTION_ASPECT_RATIO_INCREASE = 'increase'; |
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public const OPTION_ASPECT_RATIO_DECREASE = 'decrease'; |
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public const OPTION_ASPECT_RATIO_DISABLE = 'disable'; |
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/** |
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* Built-in aspect ratios. |
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*/ |
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public const ASPECT_RATIO_MODES = [ |
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self::OPTION_ASPECT_RATIO_INCREASE, |
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self::OPTION_ASPECT_RATIO_DECREASE, |
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self::OPTION_ASPECT_RATIO_DISABLE, |
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]; |
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/** @var int|string|null */ |
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private $height; |
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/** @var int|string|null */ |
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private $width; |
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/** @var string|null */ |
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private $forceOriginalAspectRatio; |
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/** @var string|null */ |
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private $eval; |
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/** @var int|null */ |
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private $interl; |
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/** @var string|null */ |
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private $flags; |
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/** @var float|null */ |
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private $param0; |
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/** @var float|null */ |
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private $param1; |
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/** @var string|null */ |
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private $size; |
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/** @var string|null */ |
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private $inColorMatrix; |
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/** @var string|null */ |
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private $outColorMatrix; |
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/** @var string|null */ |
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private $inRange; |
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/** @var string|null */ |
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private $outRange; |
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/** |
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* Scale filter. |
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* |
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* @see https://trac.ffmpeg.org/wiki/Scaling |
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* @see https://ffmpeg.org/ffmpeg-filters.html#scale-1 |
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* |
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* @param string|int|null $width Set the output video width expression. Default value is the input width. |
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* @param string|int|null $height Set the output video height expression. Default value is the input height. |
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* @param string|null $forceOriginalAspectRatio enable decreasing or increasing output video width or height if necessary to keep the original aspect ratio |
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* @param string|null $eval Specify when to evaluate width and height expression: 'init' or 'frame' |
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* @param int|null $interl Set the interlacing mode. It accepts the following values: ‘1’ Force interlaced aware scaling. ‘0’ Do not apply interlaced scaling. ‘-1’ Select interlaced aware scaling depending on whether the source frames are flagged as interlaced or not. |
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* @param string|null $flags Set libswscale scaling flags |
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* @param float|null $param0 Set libswscale input parameters for scaling algorithms that need them |
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* @param float|null $param1 Set libswscale input parameters for scaling algorithms that need them |
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* @param string|null $size set the video size |
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* @param string|null $inColorMatrix set input YCbCr color space type |
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* @param string|null $outColorMatrix set output YCbCr color space type |
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* @param string|null $inRange set intput YCbCr sample range |
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* @param string|null $outRange set output YCbCr sample range |
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*/ |
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public function __construct( |
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$width = null, |
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$height = null, |
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?string $forceOriginalAspectRatio = null, |
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?string $eval = null, |
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?int $interl = null, |
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?string $flags = null, |
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?float $param0 = null, |
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?float $param1 = null, |
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?string $size = null, |
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?string $inColorMatrix = null, |
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?string $outColorMatrix = null, |
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?string $inRange = null, |
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?string $outRange = null |
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) { |
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if ($forceOriginalAspectRatio !== null && |
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!in_array($forceOriginalAspectRatio, self::ASPECT_RATIO_MODES, true)) { |
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1 |
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throw new ParamValidationException(sprintf( |
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1 |
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'Unsupported forceOriginalAspectRatio param: \'%s\'. Must be %s.', |
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$forceOriginalAspectRatio, |
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1 |
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implode(' | ', self::ASPECT_RATIO_MODES) |
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)); |
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} |
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$this->forceOriginalAspectRatio = $forceOriginalAspectRatio; |
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$this->width = $width; |
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$this->height = $height; |
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$this->eval = $eval; |
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$this->interl = $interl; |
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$this->flags = $flags; |
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$this->param0 = $param0; |
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$this->param1 = $param1; |
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$this->size = $size; |
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$this->inColorMatrix = $inColorMatrix; |
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$this->outColorMatrix = $outColorMatrix; |
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$this->inRange = $inRange; |
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$this->outRange = $outRange; |
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} |
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public function getFFmpegCLIValue(): string |
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{ |
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$args = array_filter([ |
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($this->width !== null) ? "w={$this->width}" : false, |
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($this->height !== null) ? "h={$this->height}" : false, |
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($this->forceOriginalAspectRatio !== null) ? "force_original_aspect_ratio={$this->forceOriginalAspectRatio}" : false, |
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($this->eval !== null) ? "eval={$this->eval}" : false, |
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($this->interl !== null) ? "interl={$this->interl}" : false, |
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($this->flags !== null) ? "flags={$this->flags}" : false, |
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($this->param0 !== null) ? "param0={$this->param0}" : false, |
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($this->param1 !== null) ? "param1={$this->param1}" : false, |
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($this->size !== null) ? "size={$this->size}" : false, |
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($this->inColorMatrix !== null) ? "in_color_matrix={$this->inColorMatrix}" : false, |
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($this->outColorMatrix !== null) ? "out_color_matrix={$this->outColorMatrix}" : false, |
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($this->inRange !== null) ? "in_range={$this->inRange}" : false, |
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($this->outRange !== null) ? "out_range={$this->outRange}" : false, |
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]); |
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return sprintf( |
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'scale=%s', |
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implode(':', $args) |
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); |
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} |
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} |
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soluble-io /
soluble-mediatools
