Creating an embedded video

Some formats won't work in Safari.

Notes:

• use Handbrake on Linux to scale the video
• Format: MPEG-4 (avformat)
• Video encoder: H.264 (x264)
• save as .mp4

put the file in /media on the server so that it gets the right MIME type

For cropping, see: https://superuser.com/questions/510985/how-can-i-crop-a-video-to-a-part-of-the-view