Compress video, images and audio before sending

Users expect to be able to just drop a video in the chat and it gets send. Often this videos are to big and so they need to be recompressed.

It would be nice if there would be a message which let you choose to recompress the video at different quality levels (with a hint how large they will be) and also without recompression.
For Images there should be the same options when the image size exceeds a certain size.
Same goes for audio.

I think this is absolutely needed in all Matrix clients.