An OpenCL-based Implementation of H.264 Encoder

Young Chun Kwon, Chanho Park, Daeseok Oh, WooSuk Jang, Nakhoon Baek
School of Computer Sci. and Eng., Kyungpook National Univ., Daegu 702-701, Korea
Advanced Science and Technology Letters, Vol.28 (CIA 2013), pp.72-76 , 2013


   title={An OpenCL-based Implementation of H. 264 Encoder},

   author={Kwon, Young Chun and Park, Chanho and Oh, Daeseok and Jang, WooSuk and Baek, Nakhoon},



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We present an accelerated implementation of high-speed video stream encoder for the H.264 digital video codec standard. Based on the parallel processing techniques with GPU’s, we used an OpenCL-based GPU kernel programs. We achieved a high-level CPU-GPU interoperability, through making CPU perform all input/output operations and overall stream control, while GPU does the core encoding operations. Our final result shows remarkable speed-up in comparison with the previous implementations.
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