Demuxer mjpeg_2000 [raw MJPEG 2000 video]:
    Common extensions: j2k.
mjpeg_2000 demuxer AVOptions:
  -framerate         <video_rate> .D.......  (default "25")
  -raw_packet_size   <int>        .D.......  (from 1 to INT_MAX) (default 1024)


