Iphone video upload not supported

When i try to upload video from my iphone to my profile in buddypress, it says the file is not supported. What can i do to fix this for users to be able to upload video from their iphone or ipad?

It only support .mp4 videos unless you have activated encoding service.

You can activate encoding service from {site_url}/wp-admin/admin.php?page=rtmedia-addons , also check this doc for more details -> https://rtcamp.com/rtmedia/docs/admin/addons/audio-video-encoding/