Muxer mxf [MXF (Material eXchange Format)]:
    Common extensions: mxf.
    Mime type: application/mxf.
    Default video codec: mpeg2video.
    Default audio codec: pcm_s16le.
MXF muxer AVOptions:
  -signal_standard   <int>        E........ Force/set Signal Standard (from -1 to 7) (default -1)
     bt601           1            E........ ITU-R BT.601 and BT.656, also SMPTE 125M (525 and 625 line interlaced)
     bt1358          2            E........ ITU-R BT.1358 and ITU-R BT.799-3, also SMPTE 293M (525 and 625 line progressive)
     smpte347m       3            E........ SMPTE 347M (540 Mbps mappings)
     smpte274m       4            E........ SMPTE 274M (1125 line)
     smpte296m       5            E........ SMPTE 296M (750 line progressive)
     smpte349m       6            E........ SMPTE 349M (1485 Mbps mappings)
     smpte428        7            E........ SMPTE 428-1 DCDM
  -store_user_comments <boolean>    E........  (default true)


