seekMap:
  isSeekable = true
  duration = 3380000
  getPosition(0) = [[timeUs=0, position=9]]
  getPosition(1) = [[timeUs=0, position=9], [timeUs=20000, position=33]]
  getPosition(1690000) = [[timeUs=1680000, position=2025], [timeUs=1700000, position=2049]]
  getPosition(3380000) = [[timeUs=3360000, position=4041]]
numberOfTracks = 1
track 0:
  total output bytes = 24
  sample count = 1
  format 0:
    sampleMimeType = audio/amr-wb
    maxInputSize = 61
    channelCount = 1
    sampleRate = 16000
  sample 0:
    time = 3360000
    flags = 1
    data = length 24, hash 772665A0
tracksEnded = true
