基于TMS320DM642的AVS算法的移植以及优化

AVS algorithm migration and optimization based on TMS320DM642

针对当前基于DSP的AVS编码器的重要性以及其在进行实时编码方面不足的问题,提出了一种有效的移植优化方案。该方案结合DSP自身硬件的特点,并充分考虑到VC平台和CCS开发平台之间的差异,采用步步为营,采用层层深入的思路,从移植到初级优化,再到进一步优化对AVS编码器进行了移植和优化。在此过程中,还简单的介绍了AVS编码器的关键技术和DM642芯片。仿真测试结果表明,该方案能有效提高AVS编码器在DSP板上的编码效率,并最终达到了实时编码的要求。

For the importance ofAVS encoder based on the DSP and the problem which is insufficient in the real-time coding aspect, a effective project of optimization and transfer in the AVS is proposed. The project combines the characteristics of the DSP and fully takes into account differences between VC and CCS. It adopts step-by-step and more and more careful thought from the primary transplant to optimization and then further optimization for AVS encoder to carry out the transplantation and optimization. In this process, the AVS encoder＇ s key technologies and DM642 are also introduced. Shnulation tests show that the program can effectively improve coding efficiency which is AVS encoder on the DSP, and finally reached a real-time encoding requirements.