MediaCodecAdapter (exotest.audio.aac):
  buffers.length = 6
  buffers[0] = length 279, hash 79BF9F9B
  buffers[1] = length 279, hash C96F4684
  buffers[2] = length 279, hash 65670B86
  buffers[3] = length 280, hash 1AF29BCE
  buffers[4] = length 279, hash C96F4684
  buffers[5] = length 0, hash 1