Ticket #2804: mythweb.patch

mythweb/includes/db_update.php

@@ -40 +40 @@
             case 1:
                 setting('WebPrefer_Channum', null, 1);
                 setting('WebDBSchemaVer',    null, ++$db_vers);
+        // Table for the timestamps for the video covers, if it changes we need to update the thumbnail
+            case 2:
+                $db->query('CREATE TABLE mythweb_video_thumbs (
+                                videoid         INT(10) UNSIGNED NOT NULL PRIMARY KEY,
+                                modified        INT(11) UNSIGNED NOT NULL,
+                                width           INT(3) UNSIGNED NOT NULL,
+                                height          INT(3) UNSIGNED NOT NULL
+                            )');
+                setting('WebDBSchemaVer', null, ++$db_vers);
         // All other numbers should run their changes sequentially
-            #case 2:
+            #case 3:
             #    # do something to upgrade the database here
             #    $db_vers++;
         }

mythweb/modules/video/handler.php

@@ -84 +84 @@
                         .' to point to the correct location.');
         }
     }
+// Do it all again for the video cover thumbnails directory
+    if (file_exists('data/video_cover_thumbs')) {
+        if (!is_dir('data/video_cover_thumbs')) {
+            custom_error('An invalid file exists at data/video_cover_thumbs.  Please'
+                        .' remove it in order to use the video portions of MythWeb.');
+        }
+    } else {
+        if (!mkdir('data/video_cover_thumbs')) {
+            custom_error('Could not create directory data/video_cover_thumbs. Please create it'
+                        .' manually in order to use the video portions of MythWeb.');
+        }
+    }
 
 // Editing?
     if ($Path[1] == 'edit') {
@@ -184 +196 @@
     if (count($All_Shows))
         sort_programs($All_Shows, 'video_sortby');
 
+// Generate video cover thumbnails (if necessary)
+    if (!function_exists('imagecreate')) {
+        custom_error("Please install the GD library for PHP.\n"
+                    .'The package is usually called something like php-gd.');
+    }
+    function generate_thumbnail($videoid, $cover_filename, $cover_thumbnail_filename, $last_modified) {
+        global $db, $Last_Modified;
+        $filetype = trim(`file -bi "$cover_filename"`);
+        switch ($filetype) {
+            case 'image/jpeg':
+                $im = imagecreatefromjpeg($cover_filename);
+                break;
+            case 'image/png':
+                $im = imagecreatefrompng($cover_filename);
+                break;
+            case 'image/gif':
+                $im = imagecreatefromgif($cover_filename);
+                break;
+            default:
+                return false;
+        }
+        list($width, $height) = getimagesize($cover_filename);
+        $thumb = imagecreatetruecolor(video_img_width, video_img_height);
+        imagecopyresampled($thumb, $im, 0, 0, 0, 0, video_img_width, video_img_height, $width, $height);
+        imagejpeg($thumb, $cover_thumbnail_filename, 100);
+        if (isset($Last_Modified[$videoid]['modified'])) {
+            $sh = $db->query('UPDATE mythweb_video_thumbs SET modified='.$last_modified.', width='.video_img_width.', height='.video_img_height.' WHERE videoid='.$videoid);
+            $sh->finish();
+        } else {
+            $sh = $db->query('INSERT INTO mythweb_video_thumbs (videoid, modified, width, height) VALUES (\''.$videoid.'\', \''.$last_modified.'\', '.video_img_width.', '.video_img_height.')');
+            $sh->finish();
+        }
+        return true;
+    }
+    $Last_Modified = array();
+    $sh = $db->query('SELECT * FROM mythweb_video_thumbs');
+    while ($row = $sh->fetch_assoc()) {
+        $Last_Modified[$row['videoid']] = array ('modified' => $row['modified'], 'dimensions' => array ('w' => $row['width'], 'h' => $row['height']));
+    }
+    $sh->finish();
+    foreach ($All_Shows as $show) {
+        $cover_filename = 'data/video_covers/'.basename($show->coverfile);
+        $cover_thumbnail_filename = 'data/video_cover_thumbs/'.basename($show->coverfile);
+    // Do we even need a thumbnail?
+        if (file_exists($cover_filename)) {
+            $Image_Last_Modified = filemtime($cover_filename);
+            if (file_exists($cover_thumbnail_filename)) {
+            // Update thumbnail
+                if (isset($Last_Modified[$show->intid])) {
+                    if ($Last_Modified[$show->intid]['modified'] != $Image_Last_Modified)
+                        generate_thumbnail($show->intid, $cover_filename, $cover_thumbnail_filename, $Image_Last_Modified);
+                    else if ($Last_Modified[$show->intid]['dimensions']['w'] != video_img_width || $Last_Modified[$show->intid]['dimensions']['h'] != video_img_height)
+                        generate_thumbnail($show->intid, $cover_filename, $cover_thumbnail_filename, $Image_Last_Modified);
+                } else
+                    generate_thumbnail($show->intid, $cover_filename, $cover_thumbnail_filename, $Image_Last_Modified);
+            } else
+                    generate_thumbnail($show->intid, $cover_filename, $cover_thumbnail_filename, $Image_Last_Modified);
+        } else {
+        // Delete any old thumbnails
+            $sh = $db->query('DELETE IGNORE FROM mythweb_video_thumbs WHERE videoid = '.$show->intid);
+            $sh->finish();
+            if (file_exists($cover_thumbnail_filename))
+                unlink($cover_thumbnail_filename);
+        }
+    }
+
 // Load the class for this page
     require_once tmpl_dir.'video.php';
 

mythweb/modules/video/tmpl/default/video.php

@@ -111 +111 @@
     foreach ($All_Shows as $show) {
     ?><tr class="recorded">
     <td><?php
-        if (show_video_covers && file_exists('data/video_covers/'.basename($show->coverfile)))
-            echo '<a href="'.$show->url.'"><img id="'.html_entities($show->filename).'" src="data/video_covers/'.basename($show->coverfile).'" width="'.video_img_width.'" height="'.video_img_height.'">';
-        else
+        if (show_video_covers && file_exists('data/video_covers/'.basename($show->coverfile))) {
+            echo '<a href="'.$show->url.'"><img id="'.html_entities($show->filename).'" src="';
+            if (file_exists('data/video_cover_thumbs/'.basename($show->coverfile)))
+                echo 'data/video_cover_thumbs/';
+            else
+                echo 'data/video_covers/';
+            echo basename($show->coverfile).'" width="'.video_img_width.'" height="'.video_img_height.'">';
+        } else
             echo '&nbsp;';
     ?></td>
     <td><?php echo '<a href="'.$show->url.'">'.html_entities($show->title).'</a>' ?></td>