Data storage exploration and bandwidth analysis for distributed MPEG-4 decoding

M. Pastrnak, P.H.N. de With
IEEE International Symposium on Consumer Electronics, 2004  
The low bit-rate profiles of the MPEG-4 standard enable video-streaming for mobile Consumer Electronics (CE) and computing devices. Prediction of the system behavior is a critical issue for the implementation of such applications on a resource-limited (e.g. mobile) platform. The high complexity of the MPEG-4 standard (e.g. the shape-texture decoding) and the resulting dynamic allocation of resources are conflicting with resource limitations. For implementation, we explore a multiprocessor
more » ... ultiprocessor architecture, because it enables an efficient mapping combined with low power consumption. In this paper, we focus on a detailed analysis of the dynamic behavior and bandwidth, using an earlier proposed linear parametrical computation model [1] . The analysis reveals that the actual average bandwidth requirements are about 2.5 times lower than the worst-case estimation. As a consequence of the resulting bandwidth, an additional video stream may be decoded on the average with the same target platform, though control may be needed for worst-case situations 1 . Index Terms -MPEG-4 coding, shaped video objects, multiprocessor architecture, bandwidth analysis.
doi:10.1109/isce.2004.1375906 fatcat:x2dvwirttjb6xckri4fimdgb5i