mariohahn/MHVideoPhotoGallery — pull request #68 by guillermomuntaner (2014-09-28 12:40:04+00:00)
Title: Update MHGallerySharedManager.m

The appliesPreferredTrackTransform = YES property tells the AVAssetImageGenerator to apply asset transformations to the generated thumbnail. This way, the video rotation is also applied to the thumbnail.