Add support for more file formats

[rajgoesout]

• mp4

• mov

• flv

• mkv

• wmv

[chrishobcroft]

Uploading an mp4 video doesn't work for me, from Chrome, Brave or Firefox on Android.

Firefox shows this, as per buidl-labs/file-video#3

Chrome and Brave shows these, as per buidl-labs/file-video#2

[adamsoffer]

What's lift involved in adding .mov support? That's a big one since most people are first introduced to the demo via iphone.

[rajgoesout]

It makes more sense to add the multiple formats' support directly in livepeer, since conversion would be done by ffmpeg which is already integrated with livepeer. Doing it in demux would make the UX slow and lead to more computation on the server.