--- videofield.module.orig	2007-02-10 10:18:04.000000000 -0500
+++ videofield.module	2008-01-23 17:38:44.000000000 -0500
@@ -38,6 +38,21 @@
         'playtime' => array('type' => 'varchar', length => 10, 'not null' => FALSE),
       );
       return $columns;
+
+    case 'filters':
+      return array(
+        'default' => array(
+          'list' => '_audiofield_filter_handler',
+          'list-type' => 'list',
+          'operator' => 'views_handler_operator_or',
+          'value-type' => 'array',
+          'extra' => array('field' => $field),
+         ),
+         'null' => array(
+           'handler' => 'views_handler_filter_null',
+           'operator' => array('IS NOT' => t('Not null'), 'IS' => t('Null')),
+         ),
+       );
   }
 }
 
@@ -325,6 +340,7 @@
  * Implementation of hook_field_formatter().
  */
 function videofield_field_formatter($field, $item, $formatter) {
+  require_once(drupal_get_path('module', 'videofield') .'/multimediafile.inc');
   if (!isset($item['fid'])) {
     return '';
   }
@@ -459,3 +475,40 @@
     return theme('table', array(), $rows);
   }
 }
+
+function _videofield_potential_files($field) {
+
+  $rows = array();
+  $field_name = $field['field_name'];
+  
+  if ($field['multiple']) {
+    $result = db_query("SELECT f.fid AS fid, f.filename AS filename FROM {files} f INNER JOIN {content_" . $field_name . "} field ON field." . $field_name . "_fid = f.fid");
+    if (db_num_rows($result) == 0) {
+      return array();
+    }
+  
+    while ($file = db_fetch_object($result)) {
+      $rows[$file->fid] = $file->filename;
+    }
+  } else {
+    $result = db_query("SELECT i.type_name AS type_name FROM {node_field_instance} i WHERE field_name = '$field_name'");
+    while ($inst = db_fetch_object($result)) {
+      $type = $inst->type_name;
+      $result2 = db_query("SELECT f.fid AS fid, f.filename AS filename FROM {files} f INNER JOIN {content_type_".$type."} t ON t.".$field_name."_fid = f.fid");
+      while ($file = db_fetch_object($result2)) {
+        $rows[$file->fid] = $file->filename;
+      }
+    }
+  }
+  
+  return $rows;
+}
+
+/**
+ * Provide a list of audio files to filter on.
+ */
+function _videofield_filter_handler($op, $filterinfo) {
+  $options = array(0 => t('<empty>'));
+  $options = $options + _videofield_potential_files($filterinfo['extra']['field']);
+  return $options;
+}
\ No newline at end of file