Filter thumbnails by mimetype

src/jsx/KBRG/CacheThumbnails.js

@@ -15,7 +15,7 @@ CacheThumbnails.PROCESS_METHODS = {
  fromTimecode: 'updateFromTimecode',
  fromTimecodes: 'updateFromTimecodes'
 }
-
+CacheThumbnails.LIMIT_MIME_TYPES = true;
 /**
  * Constructer for a thumbnail cache.
  * @param {object} parameters has to contain a search target, folder search and whether only erroneous thumbnails should be added 
@@ -54,7 +54,7 @@ CacheThumbnails.prototype.cacheTimecodeOfThumbnails = function (searchTarget, se
  this.logCallback("Start searching for selected media items.", Agrarvolution.logLevels.status, this.logTarget, this.logging);
  }
 
- 
+
  for (i = 0; i < app.document.selectionLength; i++) {
  this.extractTimecodeFromThumbnail(app.document.selections[i], searchRecursive);
  }
@@ -125,6 +125,14 @@ CacheThumbnails.prototype.extractTimecodeFromThumbnail = function (thumb, search
  }
  return true;
  }
+
+ //exclude thumbnails that aren't audio or video files - might need an interface toggle
+ if (CacheThumbnails.LIMIT_MIME_TYPES && !(
+ thumb.mimeType.substring(0, 5) === 'audio' ||
+ thumb.mimeType.substring(0, 5) === 'video')) {
+ return false; //excluded mime types
+ }
+
  if (thumb.type !== CacheThumbnails.THUMBNAIL_TYPES.file) {
  return false;
  }