vendor/getid3/module.graphic.jpg.php

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<?php

/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org>               //
//  available at https://github.com/JamesHeinrich/getID3       //
//            or https://www.getid3.org                        //
//            or http://getid3.sourceforge.net                 //
//  see readme.txt for more details                            //
/////////////////////////////////////////////////////////////////
//                                                             //
// module.graphic.jpg.php                                      //
// module for analyzing JPEG Image files                       //
// dependencies: PHP compiled with --enable-exif (optional)    //
//               module.tag.xmp.php (optional)                 //
//                                                            ///
/////////////////////////////////////////////////////////////////

if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers
	exit;
}
class getid3_jpg extends getid3_handler
{
	/**
	 * @return bool
	 */
	public function Analyze() {
		$info = &$this->getid3->info;

		$info['fileformat']                  = 'jpg';
		$info['video']['dataformat']         = 'jpg';
		$info['video']['lossless']           = false;
		$info['video']['bits_per_sample']    = 24;
		$info['video']['pixel_aspect_ratio'] = (float) 1;

		$this->fseek($info['avdataoffset']);

		$imageinfo = array();
		//list($width, $height, $type) = getid3_lib::GetDataImageSize($this->fread($info['filesize']), $imageinfo);
		list($width, $height, $type) = getimagesize($info['filenamepath'], $imageinfo); // https://www.getid3.org/phpBB3/viewtopic.php?t=1474


		if (isset($imageinfo['APP13'])) {
			// http://php.net/iptcparse
			// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
			$iptc_parsed = iptcparse($imageinfo['APP13']);
			if (is_array($iptc_parsed)) {
				foreach ($iptc_parsed as $iptc_key_raw => $iptc_values) {
					list($iptc_record, $iptc_tagkey) = explode('#', $iptc_key_raw);
					$iptc_tagkey = intval(ltrim($iptc_tagkey, '0'));
					foreach ($iptc_values as $key => $value) {
						$IPTCrecordName = $this->IPTCrecordName($iptc_record);
						$IPTCrecordTagName = $this->IPTCrecordTagName($iptc_record, $iptc_tagkey);
						if (isset($info['iptc']['comments'][$IPTCrecordName][$IPTCrecordTagName])) {
							$info['iptc']['comments'][$IPTCrecordName][$IPTCrecordTagName][] = $value;
						} else {
							$info['iptc']['comments'][$IPTCrecordName][$IPTCrecordTagName] = array($value);
						}
					}
				}
			}