Ms. Qiuping Chen Profile

Qiuping Chen

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Proceedings Article | 30 October 2009 Paper

Real-time video compressing under DSP/BIOS

Qiu-ping Chen, Gui-ju Li

Proceedings Volume 7497, 74970T (2009) https://doi.org/10.1117/12.833126

KEYWORDS: Digital signal processing, Video, Video compression, Computer programming, Operating systems, Image compression, Data storage, Data processing, Video coding, Video processing

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This paper presents real-time MPEG-4 Simple Profile video compressing based on the DSP processor. The programming framework of video compressing is constructed using TMS320C6416 Microprocessor, TDS510 simulator and PC. It uses embedded real-time operating system DSP/BIOS and the API functions to build periodic function, tasks and interruptions etcs. Realize real-time video compressing. To the questions of data transferring among the system. Based on the architecture of the C64x DSP, utilized double buffer switched and EDMA data transfer controller to transit data from external memory to internal, and realize data transition and processing at the same time; the architecture level optimizations are used to improve software pipeline. The system used DSP/BIOS to realize multi-thread scheduling. The whole system realizes high speed transition of a great deal of data. Experimental results show the encoder can realize real-time encoding of 768*576, 25 frame/s video images.

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