344 lines
12 KiB
PHP
344 lines
12 KiB
PHP
<?php
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/////////////////////////////////////////////////////////////////
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/// getID3() by James Heinrich <info@getid3.org> //
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// available at http://getid3.sourceforge.net //
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// or http://www.getid3.org //
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/////////////////////////////////////////////////////////////////
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// See readme.txt for more details //
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/////////////////////////////////////////////////////////////////
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// //
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// module.graphic.jpg.php //
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// module for analyzing JPEG Image files //
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// dependencies: PHP compiled with --enable-exif (optional) //
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// module.tag.xmp.php (optional) //
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// ///
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/////////////////////////////////////////////////////////////////
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class getid3_jpg extends getid3_handler
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{
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public function Analyze() {
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$info = &$this->getid3->info;
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$info['fileformat'] = 'jpg';
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$info['video']['dataformat'] = 'jpg';
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$info['video']['lossless'] = false;
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$info['video']['bits_per_sample'] = 24;
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$info['video']['pixel_aspect_ratio'] = (float) 1;
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fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
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$imageinfo = array();
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list($width, $height, $type) = getid3_lib::GetDataImageSize(fread($this->getid3->fp, $info['filesize']), $imageinfo);
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if (isset($imageinfo['APP13'])) {
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// http://php.net/iptcparse
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// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
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$iptc_parsed = iptcparse($imageinfo['APP13']);
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if (is_array($iptc_parsed)) {
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foreach ($iptc_parsed as $iptc_key_raw => $iptc_values) {
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list($iptc_record, $iptc_tagkey) = explode('#', $iptc_key_raw);
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$iptc_tagkey = intval(ltrim($iptc_tagkey, '0'));
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foreach ($iptc_values as $key => $value) {
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$IPTCrecordName = $this->IPTCrecordName($iptc_record);
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$IPTCrecordTagName = $this->IPTCrecordTagName($iptc_record, $iptc_tagkey);
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if (isset($info['iptc'][$IPTCrecordName][$IPTCrecordTagName])) {
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$info['iptc'][$IPTCrecordName][$IPTCrecordTagName][] = $value;
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} else {
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$info['iptc'][$IPTCrecordName][$IPTCrecordTagName] = array($value);
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}
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}
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}
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}
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}
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$returnOK = false;
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switch ($type) {
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case IMG_JPG:
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$info['video']['resolution_x'] = $width;
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$info['video']['resolution_y'] = $height;
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if (isset($imageinfo['APP1'])) {
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if (function_exists('exif_read_data')) {
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if (substr($imageinfo['APP1'], 0, 4) == 'Exif') {
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//$info['warning'][] = 'known issue: https://bugs.php.net/bug.php?id=62523';
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//return false;
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$info['jpg']['exif'] = exif_read_data($info['filenamepath'], null, true, false);
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} else {
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$info['warning'][] = 'exif_read_data() cannot parse non-EXIF data in APP1 (expected "Exif", found "'.substr($imageinfo['APP1'], 0, 4).'")';
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}
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} else {
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$info['warning'][] = 'EXIF parsing only available when '.(GETID3_OS_ISWINDOWS ? 'php_exif.dll enabled' : 'compiled with --enable-exif');
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}
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}
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$returnOK = true;
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break;
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default:
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break;
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}
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$cast_as_appropriate_keys = array('EXIF', 'IFD0', 'THUMBNAIL');
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foreach ($cast_as_appropriate_keys as $exif_key) {
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if (isset($info['jpg']['exif'][$exif_key])) {
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foreach ($info['jpg']['exif'][$exif_key] as $key => $value) {
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$info['jpg']['exif'][$exif_key][$key] = $this->CastAsAppropriate($value);
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}
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}
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}
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if (isset($info['jpg']['exif']['GPS'])) {
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if (isset($info['jpg']['exif']['GPS']['GPSVersion'])) {
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for ($i = 0; $i < 4; $i++) {
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$version_subparts[$i] = ord(substr($info['jpg']['exif']['GPS']['GPSVersion'], $i, 1));
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}
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$info['jpg']['exif']['GPS']['computed']['version'] = 'v'.implode('.', $version_subparts);
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}
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if (isset($info['jpg']['exif']['GPS']['GPSDateStamp'])) {
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$explodedGPSDateStamp = explode(':', $info['jpg']['exif']['GPS']['GPSDateStamp']);
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$computed_time[5] = (isset($explodedGPSDateStamp[0]) ? $explodedGPSDateStamp[0] : '');
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$computed_time[3] = (isset($explodedGPSDateStamp[1]) ? $explodedGPSDateStamp[1] : '');
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$computed_time[4] = (isset($explodedGPSDateStamp[2]) ? $explodedGPSDateStamp[2] : '');
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if (function_exists('date_default_timezone_set')) {
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date_default_timezone_set('UTC');
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} else {
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ini_set('date.timezone', 'UTC');
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}
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$computed_time = array(0=>0, 1=>0, 2=>0, 3=>0, 4=>0, 5=>0);
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if (isset($info['jpg']['exif']['GPS']['GPSTimeStamp']) && is_array($info['jpg']['exif']['GPS']['GPSTimeStamp'])) {
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foreach ($info['jpg']['exif']['GPS']['GPSTimeStamp'] as $key => $value) {
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$computed_time[$key] = getid3_lib::DecimalizeFraction($value);
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}
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}
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$info['jpg']['exif']['GPS']['computed']['timestamp'] = mktime($computed_time[0], $computed_time[1], $computed_time[2], $computed_time[3], $computed_time[4], $computed_time[5]);
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}
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if (isset($info['jpg']['exif']['GPS']['GPSLatitude']) && is_array($info['jpg']['exif']['GPS']['GPSLatitude'])) {
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$direction_multiplier = ((isset($info['jpg']['exif']['GPS']['GPSLatitudeRef']) && ($info['jpg']['exif']['GPS']['GPSLatitudeRef'] == 'S')) ? -1 : 1);
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foreach ($info['jpg']['exif']['GPS']['GPSLatitude'] as $key => $value) {
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$computed_latitude[$key] = getid3_lib::DecimalizeFraction($value);
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}
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$info['jpg']['exif']['GPS']['computed']['latitude'] = $direction_multiplier * ($computed_latitude[0] + ($computed_latitude[1] / 60) + ($computed_latitude[2] / 3600));
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}
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if (isset($info['jpg']['exif']['GPS']['GPSLongitude']) && is_array($info['jpg']['exif']['GPS']['GPSLongitude'])) {
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$direction_multiplier = ((isset($info['jpg']['exif']['GPS']['GPSLongitudeRef']) && ($info['jpg']['exif']['GPS']['GPSLongitudeRef'] == 'W')) ? -1 : 1);
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foreach ($info['jpg']['exif']['GPS']['GPSLongitude'] as $key => $value) {
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$computed_longitude[$key] = getid3_lib::DecimalizeFraction($value);
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}
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$info['jpg']['exif']['GPS']['computed']['longitude'] = $direction_multiplier * ($computed_longitude[0] + ($computed_longitude[1] / 60) + ($computed_longitude[2] / 3600));
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}
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if (isset($info['jpg']['exif']['GPS']['GPSAltitudeRef'])) {
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$info['jpg']['exif']['GPS']['GPSAltitudeRef'] = ord($info['jpg']['exif']['GPS']['GPSAltitudeRef']); // 0 = above sea level; 1 = below sea level
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}
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if (isset($info['jpg']['exif']['GPS']['GPSAltitude'])) {
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$direction_multiplier = (!empty($info['jpg']['exif']['GPS']['GPSAltitudeRef']) ? -1 : 1); // 0 = above sea level; 1 = below sea level
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$info['jpg']['exif']['GPS']['computed']['altitude'] = $direction_multiplier * getid3_lib::DecimalizeFraction($info['jpg']['exif']['GPS']['GPSAltitude']);
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}
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}
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if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.xmp.php', __FILE__, false)) {
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if (isset($info['filenamepath'])) {
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$image_xmp = new Image_XMP($info['filenamepath']);
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$xmp_raw = $image_xmp->getAllTags();
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foreach ($xmp_raw as $key => $value) {
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if (strpos($key, ':')) {
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list($subsection, $tagname) = explode(':', $key);
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$info['xmp'][$subsection][$tagname] = $this->CastAsAppropriate($value);
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} else {
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$info['warning'][] = 'XMP: expecting "<subsection>:<tagname>", found "'.$key.'"';
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}
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}
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}
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}
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if (!$returnOK) {
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unset($info['fileformat']);
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return false;
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}
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return true;
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}
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public function CastAsAppropriate($value) {
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if (is_array($value)) {
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return $value;
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} elseif (preg_match('#^[0-9]+/[0-9]+$#', $value)) {
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return getid3_lib::DecimalizeFraction($value);
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} elseif (preg_match('#^[0-9]+$#', $value)) {
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return getid3_lib::CastAsInt($value);
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} elseif (preg_match('#^[0-9\.]+$#', $value)) {
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return (float) $value;
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}
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return $value;
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}
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public function IPTCrecordName($iptc_record) {
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// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
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static $IPTCrecordName = array();
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if (empty($IPTCrecordName)) {
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$IPTCrecordName = array(
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1 => 'IPTCEnvelope',
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2 => 'IPTCApplication',
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3 => 'IPTCNewsPhoto',
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7 => 'IPTCPreObjectData',
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8 => 'IPTCObjectData',
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9 => 'IPTCPostObjectData',
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);
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}
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return (isset($IPTCrecordName[$iptc_record]) ? $IPTCrecordName[$iptc_record] : '');
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}
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public function IPTCrecordTagName($iptc_record, $iptc_tagkey) {
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// http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/IPTC.html
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static $IPTCrecordTagName = array();
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if (empty($IPTCrecordTagName)) {
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$IPTCrecordTagName = array(
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1 => array( // IPTC EnvelopeRecord Tags
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0 => 'EnvelopeRecordVersion',
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5 => 'Destination',
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20 => 'FileFormat',
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22 => 'FileVersion',
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30 => 'ServiceIdentifier',
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40 => 'EnvelopeNumber',
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50 => 'ProductID',
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60 => 'EnvelopePriority',
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70 => 'DateSent',
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80 => 'TimeSent',
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90 => 'CodedCharacterSet',
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100 => 'UniqueObjectName',
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120 => 'ARMIdentifier',
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122 => 'ARMVersion',
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),
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2 => array( // IPTC ApplicationRecord Tags
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0 => 'ApplicationRecordVersion',
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3 => 'ObjectTypeReference',
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4 => 'ObjectAttributeReference',
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5 => 'ObjectName',
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7 => 'EditStatus',
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8 => 'EditorialUpdate',
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10 => 'Urgency',
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12 => 'SubjectReference',
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15 => 'Category',
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20 => 'SupplementalCategories',
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22 => 'FixtureIdentifier',
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25 => 'Keywords',
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26 => 'ContentLocationCode',
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27 => 'ContentLocationName',
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30 => 'ReleaseDate',
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35 => 'ReleaseTime',
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37 => 'ExpirationDate',
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38 => 'ExpirationTime',
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40 => 'SpecialInstructions',
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42 => 'ActionAdvised',
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45 => 'ReferenceService',
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47 => 'ReferenceDate',
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50 => 'ReferenceNumber',
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55 => 'DateCreated',
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60 => 'TimeCreated',
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62 => 'DigitalCreationDate',
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63 => 'DigitalCreationTime',
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65 => 'OriginatingProgram',
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70 => 'ProgramVersion',
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75 => 'ObjectCycle',
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80 => 'By-line',
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85 => 'By-lineTitle',
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90 => 'City',
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92 => 'Sub-location',
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95 => 'Province-State',
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100 => 'Country-PrimaryLocationCode',
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101 => 'Country-PrimaryLocationName',
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103 => 'OriginalTransmissionReference',
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105 => 'Headline',
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110 => 'Credit',
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115 => 'Source',
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116 => 'CopyrightNotice',
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118 => 'Contact',
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120 => 'Caption-Abstract',
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121 => 'LocalCaption',
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122 => 'Writer-Editor',
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125 => 'RasterizedCaption',
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130 => 'ImageType',
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131 => 'ImageOrientation',
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135 => 'LanguageIdentifier',
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150 => 'AudioType',
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151 => 'AudioSamplingRate',
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152 => 'AudioSamplingResolution',
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153 => 'AudioDuration',
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154 => 'AudioOutcue',
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184 => 'JobID',
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185 => 'MasterDocumentID',
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186 => 'ShortDocumentID',
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187 => 'UniqueDocumentID',
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188 => 'OwnerID',
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200 => 'ObjectPreviewFileFormat',
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201 => 'ObjectPreviewFileVersion',
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202 => 'ObjectPreviewData',
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221 => 'Prefs',
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225 => 'ClassifyState',
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228 => 'SimilarityIndex',
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230 => 'DocumentNotes',
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231 => 'DocumentHistory',
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232 => 'ExifCameraInfo',
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),
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3 => array( // IPTC NewsPhoto Tags
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0 => 'NewsPhotoVersion',
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10 => 'IPTCPictureNumber',
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20 => 'IPTCImageWidth',
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30 => 'IPTCImageHeight',
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40 => 'IPTCPixelWidth',
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50 => 'IPTCPixelHeight',
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55 => 'SupplementalType',
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60 => 'ColorRepresentation',
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64 => 'InterchangeColorSpace',
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65 => 'ColorSequence',
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66 => 'ICC_Profile',
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70 => 'ColorCalibrationMatrix',
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80 => 'LookupTable',
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84 => 'NumIndexEntries',
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85 => 'ColorPalette',
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86 => 'IPTCBitsPerSample',
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90 => 'SampleStructure',
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100 => 'ScanningDirection',
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102 => 'IPTCImageRotation',
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110 => 'DataCompressionMethod',
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120 => 'QuantizationMethod',
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125 => 'EndPoints',
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130 => 'ExcursionTolerance',
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135 => 'BitsPerComponent',
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140 => 'MaximumDensityRange',
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145 => 'GammaCompensatedValue',
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),
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7 => array( // IPTC PreObjectData Tags
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10 => 'SizeMode',
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20 => 'MaxSubfileSize',
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90 => 'ObjectSizeAnnounced',
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95 => 'MaximumObjectSize',
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),
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8 => array( // IPTC ObjectData Tags
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10 => 'SubFile',
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),
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9 => array( // IPTC PostObjectData Tags
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10 => 'ConfirmedObjectSize',
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),
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);
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}
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return (isset($IPTCrecordTagName[$iptc_record][$iptc_tagkey]) ? $IPTCrecordTagName[$iptc_record][$iptc_tagkey] : $iptc_tagkey);
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}
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}
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