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We describe a method that considerably improves the computational behaviour of H.264 intra-only encoders. Such intra-only encoders come to use in video-cutting and low-latency video coding where temporal prediction via using inter-frames is no feasible option. We identify the spatial prediction step as the computational bottleneck in intra-only encoders. In this step, the encoder tests various modes...
In this paper, we introduce a high-level simulation methodology for the modeling of multicore video processing architectures. This method allows design space explorations of parallel video processing applications (VPAs). It is used to test the performance of running a VPA on arbitrary virtual hardware and software configurations. The method represents an alternative to performing a "complete"...
This work targets the optimization of multiprocessor H.264 decoder implementations. We have extended the simulator of a multi-core VLIW media processor to enable cycle-accurate function profiling on a sub-macroblock level, which allows measuring the effects of coding modes on the computational complexity with very fine granularity. This knowledge helps the system designer to optimize the system performance...
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