There is a mix between stream formats (like "mjpeg") and a service that seems a bit out-of-place ("ustream"). Ustream is dead, by the way.
Shouldn't m4 be mp4? How is this being used in practice?
Only one stream can be defined per format, and there is no description. We should probably transition to a list of objects with a format key and a description field.
Very similar to #50:
m4
bemp4
? How is this being used in practice?format
key and adescription
field.