  Battery life is one of the major limitations to mobile device use, which
makes research on energy efficient soft- and hardware an important task. This
paper investigates the energy required by a CPU when decoding compressed
bitstream videos on mobile platforms. A model is derived that describes the
energy consumption of the new HEVC decoder for intra coded videos. We show that
the relative estimation error of the model is smaller than 3.2% and that the
model can be used to build encoders aiming at minimizing decoding energy.
