seekMap:
  isSeekable = true
  duration = 760000
  getPosition(0) = [[timeUs=0, position=950]]
  getPosition(1) = [[timeUs=0, position=950]]
  getPosition(380000) = [[timeUs=0, position=950]]
  getPosition(760000) = [[timeUs=0, position=950]]
numberOfTracks = 1
track 0:
  total output bytes = 410
  sample count = 1
  format 0:
    id = 1
    sampleMimeType = audio/ac4
    channelCount = 2
    sampleRate = 48000
    language = und
    drmInitData = -1683793742
  sample 0:
    time = 720000
    flags = 1073741825
    data = length 410, hash 63017D46
    crypto mode = 1
    encryption key = length 16, hash 9FDDEA52
tracksEnded = true