private function getExtensionFromSpec(SpecificationInterface $spec)
    {
        switch ($spec->getType()) {
            case SpecificationInterface::TYPE_IMAGE:
                return $this->getExtensionFromImageCodec($spec->getImageCodec());
            case SpecificationInterface::TYPE_ANIMATION:
                return 'gif';
            case SpecificationInterface::TYPE_AUDIO:
                return $this->getExtensionFromAudioCodec($spec->getAudioCodec());
            case SpecificationInterface::TYPE_VIDEO:
                return $this->getExtensionFromVideoCodec($spec->getVideoCodec());
            case SpecificationInterface::TYPE_SWF:
                return 'swf';
            case PdfSpecification::TYPE_PDF:
                return 'pdf';
        }

        return null;
    }
private function getExtensionFromSpec(SpecificationInterface $spec)
    {
        switch ($spec->getType()) {
            case SpecificationInterface::TYPE_IMAGE:
                return $this->getExtensionFromImageCodec($spec->getImageCodec());
            case SpecificationInterface::TYPE_ANIMATION:
                return 'gif';
            case SpecificationInterface::TYPE_AUDIO:
                return $this->getExtensionFromAudioCodec($spec->getAudioCodec());
            case SpecificationInterface::TYPE_VIDEO:
                return $this->getExtensionFromVideoCodec($spec->getVideoCodec());
            case SpecificationInterface::TYPE_SWF:
                return 'swf';
            case PdfSpecification::TYPE_PDF:
                return 'pdf';
        }

        return null;
    }
private function getExtensionFromSpec ( SpecificationInterface $ spec ) { switch ( $ spec -> getType ( ) ) { case SpecificationInterface :: TYPE_IMAGE : return $ this -> getExtensionFromImageCodec ( $ spec -> getImageCodec ( ) ) ; case SpecificationInterface :: TYPE_ANIMATION : return 'gif' ; case SpecificationInterface :: TYPE_AUDIO : return $ this -> getExtensionFromAudioCodec ( $ spec -> getAudioCodec ( ) ) ; case SpecificationInterface :: TYPE_VIDEO : return $ this -> getExtensionFromVideoCodec ( $ spec -> getVideoCodec ( ) ) ; case SpecificationInterface :: TYPE_SWF : return 'swf' ; case PdfSpecification :: TYPE_PDF : return 'pdf' ; } return null ; }
Get the extension from MediaAlchemyst specs

@param SpecificationInterface $spec

@return string
Get the extension from MediaAlchemyst specs