HD video decoding scheme based on mobile heterogeneous system architecture

Efficiency for mobile devices becomes important than ever due to the demanding multimedia applications. Take HD video decoding for example, it is getting challenging as the resolution increases. To enhance efficiency, HSA (Heterogeneous System Architecture) is proposed to drive a new era of computation. Based on this idea, we develop a heterogeneous architecture, which is composed of a mobile GPU (Graphics Processing Unit) with a proposed configurable filtering unit and a CPU to coordinate the decoding flow. The feasibility of H.264/MPEG-4 HD video decoding pipeline for the proposed architecture is verified. Furthermore, according to the corresponding GPU hardware model, the estimated processing time of inverse quantization, inverse transform and motion compensation for decoding a 1080p video can reach to 16ms and 11ms per frame for MPEG-4 and H.264 respectively.