./ffmpeg -movflags frag_keyframe+empty_moov -i rtsp://192.168.1.150:1055/ -acodec copy -vcodec copy http://localhost:8090/feed1.ffm
ffmpeg version N-89180-gafd2bf5 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  configuration:
  libavutil      56.  0.100 / 56.  0.100
  libavcodec     58.  3.105 / 58.  3.105
  libavformat    58.  2.102 / 58.  2.102
  libavdevice    58.  0.100 / 58.  0.100
  libavfilter     7.  2.100 /  7.  2.100
  libswscale      5.  0.101 /  5.  0.101
  libswresample   3.  0.101 /  3.  0.101
Option movflags not found.