More robust with getting keys and ids from website.
[rte:radio] Add support for RTMP downloads, alternate URL style
This is useful as a) RTMP downloads are a good deal faster to download b) Older items are available only as RTMP streams
It was trying to use the ttml/dfxp file with ffmpeg, which doesn't have support for them. I broke it in e04398e397.
e04398e397