How to generate a fmp4 hls live stream with FFmpeg

FFmpeg -re -stream_loop -1 -i voweb.mp4 -hls_fmp4_init_filename init.mp4 -vf settb=AVTB,setpts='trunc(PTS/1K)*1K+st\(1,trunc(RTCTIME/1K))-1K*trunc(ld(1)/1K)',\ drawtext=fontfile=..

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