102 lines
3.9 KiB
PHP
102 lines
3.9 KiB
PHP
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<?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.svg.php //
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// module for analyzing SVG Image files //
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// dependencies: NONE //
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// ///
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/////////////////////////////////////////////////////////////////
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class getid3_svg 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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fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
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$SVGheader = fread($this->getid3->fp, 4096);
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if (preg_match('#\<\?xml([^\>]+)\?\>#i', $SVGheader, $matches)) {
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$info['svg']['xml']['raw'] = $matches;
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}
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if (preg_match('#\<\!DOCTYPE([^\>]+)\>#i', $SVGheader, $matches)) {
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$info['svg']['doctype']['raw'] = $matches;
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}
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if (preg_match('#\<svg([^\>]+)\>#i', $SVGheader, $matches)) {
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$info['svg']['svg']['raw'] = $matches;
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}
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if (isset($info['svg']['svg']['raw'])) {
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$sections_to_fix = array('xml', 'doctype', 'svg');
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foreach ($sections_to_fix as $section_to_fix) {
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if (!isset($info['svg'][$section_to_fix])) {
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continue;
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}
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$section_data = array();
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while (preg_match('/ "([^"]+)"/', $info['svg'][$section_to_fix]['raw'][1], $matches)) {
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$section_data[] = $matches[1];
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$info['svg'][$section_to_fix]['raw'][1] = str_replace($matches[0], '', $info['svg'][$section_to_fix]['raw'][1]);
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}
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while (preg_match('/([^\s]+)="([^"]+)"/', $info['svg'][$section_to_fix]['raw'][1], $matches)) {
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$section_data[] = $matches[0];
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$info['svg'][$section_to_fix]['raw'][1] = str_replace($matches[0], '', $info['svg'][$section_to_fix]['raw'][1]);
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}
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$section_data = array_merge($section_data, preg_split('/[\s,]+/', $info['svg'][$section_to_fix]['raw'][1]));
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foreach ($section_data as $keyvaluepair) {
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$keyvaluepair = trim($keyvaluepair);
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if ($keyvaluepair) {
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$keyvalueexploded = explode('=', $keyvaluepair);
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$key = (isset($keyvalueexploded[0]) ? $keyvalueexploded[0] : '');
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$value = (isset($keyvalueexploded[1]) ? $keyvalueexploded[1] : '');
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$info['svg'][$section_to_fix]['sections'][$key] = trim($value, '"');
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}
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}
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}
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$info['fileformat'] = 'svg';
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$info['video']['dataformat'] = 'svg';
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$info['video']['lossless'] = true;
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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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if (!empty($info['svg']['svg']['sections']['width'])) {
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$info['svg']['width'] = intval($info['svg']['svg']['sections']['width']);
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}
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if (!empty($info['svg']['svg']['sections']['height'])) {
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$info['svg']['height'] = intval($info['svg']['svg']['sections']['height']);
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}
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if (!empty($info['svg']['svg']['sections']['version'])) {
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$info['svg']['version'] = $info['svg']['svg']['sections']['version'];
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}
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if (!isset($info['svg']['version']) && isset($info['svg']['doctype']['sections'])) {
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foreach ($info['svg']['doctype']['sections'] as $key => $value) {
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if (preg_match('#//W3C//DTD SVG ([0-9\.]+)//#i', $key, $matches)) {
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$info['svg']['version'] = $matches[1];
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break;
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}
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}
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}
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if (!empty($info['svg']['width'])) {
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$info['video']['resolution_x'] = $info['svg']['width'];
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}
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if (!empty($info['svg']['height'])) {
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$info['video']['resolution_y'] = $info['svg']['height'];
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}
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return true;
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}
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$info['error'][] = 'Did not find expected <svg> tag';
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return false;
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}
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}
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