What encoder (i.e. free) to use other than Telestream?

We just started looking into Wowza as we heard very good things, can someone please tell me what other encoders are supported by Wowza? we saw the demo and it’s using Telestream, which is currently sold at $449, too expensize for a non-profit org.

Also, is there anyone who would like to help us to set up end-to-end for video stream? if so, please add your contact so we can contact you directly. Many thanks.

There are some live encoder guides here

https://www.wowza.com/docs/specific-encoding-technologies

But take a look at the VLC and FFmpeg examples here

https://www.wowza.com/docs/how-to-use-vlc-as-a-live-stream-encoder-with-wowza-media-server-mpeg-ts)

https://www.wowza.com/docs/how-to-use-ffmpeg-with-wowza-media-server-mpeg-ts

Richard

What encoder seems to be the most widely used?