Muxer mpeg [MPEG-1 Systems / MPEG program stream]:
    Common extensions: mpg,mpeg.
    Mime type: video/mpeg.
    Default video codec: mpeg1video.
    Default audio codec: mp2.
mpeg muxer AVOptions:
  -muxrate           <int>        E....... (from 0 to 1.67772e+009) (default 0)
  -preload           <int>        E....... Initial demux-decode delay in microseconds. (from 0 to INT_MAX) (default 500000)


