retroArch streaming

youtube
- stream URL
  - rtmp://a.rtmp.youtube.com/live2
  - rtmp://b.rtmp.youtube.com/live2?backup=1
- quality
  - high
  - medium
  - low
twitch.tv
- stream URL
  - rtmp://live.twitch.tv/app
- quality
  - high
  - medium
  - low