You can enable MP4 recording by default in server settings by ensuring the H.264 codec is active, which is the standard compatible codec for the MP4 container. 2. Streaming from Pre-recorded MP4s

Programs like OBS Studio allow you to set your output format to MP4. This is highly recommended for users who want to upload their streams to other platforms after the live event.

Software (like OBS) or hardware that converts the raw video into a streamable format (often H.264 within an MP4 or FLV container).

If you want to "go live" using a file you’ve already created (pre-recorded streaming):