：MPEG-4是当前最具影响的多媒体数据压缩编码国际标准。针对视频编码过程中计算复杂度高，系统运算量大等
特点，本文提出了在TMS320C6416T上实现MPEG-4编码的优化方法。为使MPEG-4编码器达到实时应用的要求，结
合C64x DSP的特点，采取了一系列软件优化方法，包括合理分配存储器，在内存开辟双缓冲区结构，用汇编程序实现
MPEG-4的核心算法以及对整个程序流程进行C语言级优化等。实验结果表明，该编码器可以对768 pixel×576 pixel，
25 frame／s的视频图像进行实时编码。
MPEG-4 iS one of the most important and influential international multimedia data compression
encorders．To meet the demands of a video encoding for the large computation load and strong
computing power，a optimized encoding method of MPEG-4 based on TMS320C6416T is presented．
According to the characteristics of C64x DSP，severaI kinds of methods for software optimization are
proposed，which includes allocating memories in reason，setting two buffers in a memory based on the
characteristic of EDMA．realizing a core code by linear assembly language and optimizing C language
for whole programs．Experimental results show that the encoder CaR realize real—time encoding for rid—
eo images with 768 pixel X 576 pixel，in 25 frame／s。 (2011-03-28, PDF, 471KB, 下载5次)