CAJ | 학술논문

提出了一种在TI公司高性能数字信号处理器TMS320DM3730上进行H．264编码器（即x264编码器）移植与优化的方法，详细描述了在CCS4．2开发平台上进行x264编码器移植工作的基本原理和需要注意的问题。为了提高编码速度，针对DM3730处理器的结构特点，对x264编码器进行了优化，主要方法包括编译器优化、内存优化、C语言代码优化及汇编代码优化。对x264编码器进行的CIF格式编码测试结果表明，在均值信噪比略微降低的前提下，编码速度得到了显著提高，因此获得了更优的编码效率。
제출료일충재TI공사고성능수자신호처리기TMS320DM3730상진행H．264편마기（즉x264편마기）이식여우화적방법，상세묘술료재CCS4．2개발평태상진행x264편마기이식공작적기본원리화수요주의적문제。위료제고편마속도，침대DM3730처리기적결구특점，대x264편마기진행료우화，주요방법포괄편역기우화、내존우화、C어언대마우화급회편대마우화。대x264편마기진행적CIF격식편마측시결과표명，재균치신조비략미강저적전제하，편마속도득도료현저제고，인차획득료경우적편마효솔。
A method of transplantation and optimization of the H.264 encoder i.e. x264 encoder, based on. the TI TMS320DM3730 is proposed. The basic'principles and the problems might be considered in the process of the transplantation based on the CCS4.2 development platform are described in detail. To improve the encoding speed, the x264 encoder is specifically optimized in accordance with the structural characteristics of TMS320DM3730, with the help of the compiler optimization, the memory optimization, code optimizations at both C language level and the assembly language level. Experimental results show that, for the video sequences with CIF format, although the SNR is slightly reduced, the encoding speed of the optimized x264 encoder is significantly improved, and hence higher encoding efficiency can be achieved.