Merge commit 'fc322d6a'

* commit 'fc322d6a':
  tta: Convert to the new bitstream reader
  mlp: Convert to the new bitstream reader
  unary: Convert to the new bitstream reader

This merge is a noop, see
http://ffmpeg.org/pipermail/ffmpeg-devel/2017-April/209609.htmlMerged-by: Clément Bœsch <u@pkh.me>