seekMap:
  isSeekable = true
  duration = 4360000
  getPosition(0) = [[timeUs=0, position=6]]
  getPosition(1) = [[timeUs=0, position=6], [timeUs=20000, position=19]]
  getPosition(2180000) = [[timeUs=2180000, position=1423]]
  getPosition(4360000) = [[timeUs=4340000, position=2827]]
numberOfTracks = 1
track 0:
  total output bytes = 13
  sample count = 1
  format 0:
    sampleMimeType = audio/3gpp
    maxInputSize = 61
    channelCount = 1
    sampleRate = 8000
  sample 0:
    time = 4340000
    flags = 1
    data = length 13, hash AC59BA7C
tracksEnded = true
