seekMap:
  isSeekable = false
  duration = 1000
  getPosition(0) = [[timeUs=0, position=0]]
numberOfTracks = 1
track 1:
  total output bytes = 24
  sample count = 1
  format 0:
    id = 1
    sampleMimeType = video/x-vnd.on2.vp9
    width = 360
    height = 240
    selectionFlags = 1
    language = en
    drmInitData = 1305012705
  sample 0:
    time = 0
    flags = 1073741824
    data = length 24, hash E58668B1
    crypto mode = 1
    encryption key = length 16, hash 4CE944CF
tracksEnded = true
