I have a couple of videos on Google Photos. Now some of them were rotated automatically, others not.
How can I manually rotate them? I want to avoid download, rotate and re-upload!
Google plus is not available anymore.
The old Google+ Photos can rotate video's (seems like this functionality is still missing). Simply go to https://plus.google.com/photos. It will redirect you to photos.google.com but you'll have the option to go back to Google+ Photos. Click that option, open your video and use the rotate tools on top.
Thanks to this reddit post: https://www.reddit.com/r/google/comments/3d47pk/can_google_photos_rotate_videos/
Share the video from google photos to google plus (you may have to create a collection to share it to.) Rotate it on google plus - it will rotate on photos too.