Vmix uses multiple overlays and frames to produce a variety of frames to be used on your stream. To manage the switching of these why not use Elgato Stream Deck.
We use multiple streams to allow users to cope with higher or lower quality connections. We decide to just use two streams 720p at 1.5Mbps and a 480p at 500Kbps settings. From a users perspective both these settings will go out to the same stream. That will allow the CDN network to automatiucally offer the relevant download rate depending on the users internet circumstances.
vMix is software that allows you to create professional quality productions on your own computer at a fraction of the cost. vMix gives you the power to add multiple cameras, videos, images, audio, web streams, Powerpoint, titles, virtual sets, chroma key, and much more to your production. You are then able to display, record and live stream your production all at the same time!
Free and open source software for video recording and live streaming. High performance real time video/audio capturing and mixing. Create scenes made up of multiple sources including window captures, images, text, browser windows, webcams, capture cards and more.