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<?php |
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namespace Jackal\Giffhanger\Generator; |
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use Alchemy\BinaryDriver\Exception\ExecutionFailureException; |
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use FFMpeg\Coordinate\Dimension; |
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use FFMpeg\Coordinate\FrameRate; |
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use FFMpeg\Coordinate\TimeCode; |
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use FFMpeg\Exception\RuntimeException; |
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use FFMpeg\FFMpeg; |
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use FFMpeg\Filters\Audio\SimpleFilter; |
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use FFMpeg\Media\Video; |
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use Jackal\Giffhanger\Configuration\Configuration; |
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use Jackal\Giffhanger\Exception\GiffhangerException; |
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use Jackal\Giffhanger\FFMpeg\ext\Filters\CropCenterFilter; |
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abstract class AbstractVideoGenerator implements GeneratorInterface |
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{ |
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abstract protected function getVideoFormat(); |
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protected $destination; |
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protected $sourceFile; |
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protected $options = []; |
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private $tempFilesToRemove = []; |
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public function __construct($sourceFile, $destionationFile, Configuration $options) |
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{ |
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$this->options = $options; |
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if (!is_dir($this->options->getTempFolder())) { |
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if (!mkdir($this->options->getTempFolder(), 0777, true)) { |
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$this->__destruct(); |
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throw new \Exception('Cannot create temp folder in path "' . $this->options->getTempFolder() . '"'); |
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} |
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} |
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$this->sourceFile = $sourceFile; |
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$this->destination = $destionationFile; |
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} |
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/** |
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* @return FFMpeg |
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*/ |
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protected function getFFMpeg() : FFMpeg |
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{ |
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return FFMpeg::create([ |
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'ffmpeg.binaries' => $this->options->getFFMpegBinaries(), |
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'ffprobe.binaries' => $this->options->getFFProbeBinaries(), |
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'timeout' => 3600, |
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]); |
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} |
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protected function getDuration() : int |
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{ |
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$ffmpeg = $this->getFFMpeg(); |
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$ffmpeg = $ffmpeg->open($this->sourceFile); |
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return $ffmpeg->getFFProbe()->format($this->sourceFile)->get('duration'); |
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} |
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protected function getCutPoints() : array |
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{ |
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$cutPoints = []; |
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$videoDuration = $this->getDuration(); |
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for ($i = 1;$i <= $this->options->getNumberOfFrames();$i++) { |
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$cutPoints[] = (($videoDuration / $this->options->getNumberOfFrames()) - ($videoDuration / $this->options->getNumberOfFrames() / 2)) * $i; |
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} |
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return $cutPoints; |
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} |
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protected function getRatio() : float |
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{ |
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$ffmpeg = $this->getFFMpeg(); |
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$ffmpeg = $ffmpeg->open($this->sourceFile); |
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return $ffmpeg->getStreams()->first()->getDimensions()->getRatio()->getValue(); |
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} |
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public function __destruct() |
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{ |
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foreach (array_unique($this->tempFilesToRemove) as $fileToRemove) { |
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if (is_file($fileToRemove)) { |
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unlink($fileToRemove); |
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} |
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//if folder is empty, remove |
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if (is_dir(dirname($fileToRemove)) and count(scandir(dirname($fileToRemove))) == 2) { |
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rmdir(dirname($fileToRemove)); |
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} |
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} |
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} |
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protected function addTempFileToRemove($filePath) : void |
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{ |
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$this->tempFilesToRemove[] = $filePath; |
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} |
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public function generate() : void |
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{ |
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$ffmpeg = $this->getFFMpeg(); |
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$videoFormat = $this->getVideoFormat(); |
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try { |
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$cutPoints = $this->getCutPoints(); |
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/** @var Video $video */ |
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$video = $ffmpeg->open($this->sourceFile); |
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$files = []; |
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foreach ($cutPoints as $k => $cutPoint) { |
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$partFile = $this->options->getTempFolder() . '/' . md5($this->sourceFile) . '_' . ($k + 1) . '.avi'; |
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//remove audio track |
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$video->addFilter(new SimpleFilter(['-an'])); |
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$video->filters()->clip( |
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TimeCode::fromSeconds($cutPoint), |
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TimeCode::fromSeconds($this->options->getOutputDuration() / count($cutPoints)) |
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); |
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$video->filters()->resize( |
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new Dimension( |
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(int) round($this->options->getDimensionWidth()), |
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(int) round($this->options->getDimensionWidth() / $this->getRatio()) |
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) |
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); |
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$video->filters()->framerate(new FrameRate($this->options->getFrameRate()), 1); |
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$video->save($videoFormat, $partFile); |
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$files[] = $partFile; |
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$this->addTempFileToRemove($partFile); |
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} |
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if (count($files) == 1) { |
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rename($files[0], $this->destination); |
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} else { |
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/** @var Video $video */ |
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$video = $ffmpeg->open($files[0]); |
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if (is_file($this->destination)) { |
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unlink($this->destination); |
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} |
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$video |
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->concat($files) |
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->saveFromSameCodecs($this->destination); |
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} |
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if ($this->options->getCropRatio() and ($this->options->getCropRatio() != $this->getRatio())) { |
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$fileCropped = $this->options->getTempFolder() . '/' . md5($this->sourceFile) . '_cropped.avi'; |
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$video = $ffmpeg->open($this->destination); |
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$video->addFilter(new CropCenterFilter($this->options->getCropRatio())); |
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$video->save($videoFormat, $fileCropped); |
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rename($fileCropped, $this->destination); |
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} |
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} catch (RuntimeException $e) { |
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$message = $e->getMessage(); |
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if ($e->getPrevious() instanceof ExecutionFailureException) { |
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$message = $e->getPrevious()->getMessage(); |
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} |
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throw new GiffhangerException(sprintf('%s', $message)); |
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} |
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} |
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} |
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lucajackal85 /
Giffhanger
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