You need this to get it done:
Action DetailsRequirements and how-to articles for Mixer's action:
Maximum bitrate: 10000 Kbps (shouldn’t use more than 75% of your available upload)
FPS: 60 supported, but more taxing on performance and upload, 30 works fine for most games
Resolution: 720p or 1080p (720p works fine for most games)
Keyframe: Most streamers set this to 1
A brief summary of what you are streaming.
Choose the game which you are playing.
Set the maturity rating for your stream (General, Teen or Mature.) If a game has not yet been given a rating by the ESRB, the channel must be marked 18+.
The primary language being used in your stream.
This is the text that will auto populate when a viewer clicks the "share" button on your channel page.