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The computing power of microprocessors has exponentially increased in the past few decades, so the support to compute intensive multimedia applications has increased too. With such improved computing power, memory subsystem deficiency becomes the major barrier to support video decoder on the Digital Signal Processor (DSP). H.264/AVC becomes the next generation of video codec for embedded systems....
In this paper, the implementation of a Main Profile H.264 decoder based on a DM642 digital signal processor is described. An initial standard compliant raw-C decoder has been optimized in speed for the target processor. The parallelism between algorithm execution and data movement has been fully exploited using DMA. Also, critical parts of the algorithm have been encoded directly in assembly code...
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