Performance of a software MPEG video decoder
MULTIMEDIA '93 Proceedings of the first ACM international conference on Multimedia
Small memory software: patterns for systems with limited memory
Small memory software: patterns for systems with limited memory
Data and memory optimization techniques for embedded systems
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Real-Time Parallel MPEG-2 Decoding in Software
IPPS '97 Proceedings of the 11th International Symposium on Parallel Processing
On Speed Optimization of MPEG-4 Decoder for Real-Time Multimedia Applications
ICCIMA '99 Proceedings of the 3rd International Conference on Computational Intelligence and Multimedia Applications
Optimal decoder for block-transform based video coders
IEEE Transactions on Multimedia
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MPEG-4 visual simple profile is a widely used video compression standard for mobile solutions. In general, MPEG-4 video decoder requires high computation power for its complex algorithms. It's difficult to implement MPEG-4 video decoder on hand-held devices directly. In this paper, we proposed a novel color space transform algorithm and optimized the memory access operations. Moreover, the multiperless integer IDCT is adopted to further speed up the decoder. Our optimization is based on ARM7TDMI and ARM920T, which are very desirable cores to mobile solutions for low power consumption. Experimental results show that the optimized decoder acts about 5 times faster than existing XVID MPEG-4 video decoder with small video quality degradation and supports real-time video applications.