Video Conversion

Hello,

I would like to have a short video play from within  Muse-created website.   I have an MP4 file ready to use, but it seems I have to convert to OGG and WEBM to allow for  older browsers and devices where possible.   At first glance, no such conversions are poossible with "ENCODER"   I did discover a conversation on a forum dated 2011, but not much help,   What is the situation in March 2017 is there an app within CC which can handle such a task please.   I would be grateful for your advice.   If this is not possible is there a recommended piece of software that will carry out the needed conversions?

Many thanks

Tony Scott