How can I use FFmpeg to stream video content over RTMP?

To stream video content over RTMP using FFmpeg, you can use the following command:

ffmpeg -i input video file -c:v libx264 -preset veryfast -tune zerolatency -f flv rtmp://RTMP server address/stream key

This command will encode the input video file using the libx264 codec with the veryfast preset and zerolatency tuning, and then stream it to the specified RTMP server address with the given stream key.