基于Blackfin DSP的H.264解码显示

Display of H.264 Decoded Video Based on Blackfin DSP

在简要介绍BF533 DSP开发平台的基础上,着重描述如何对BF533的PPI,DMA等硬件资源进行配置,以及如何将解码器输出的YUV数据按照ITU-R 656帧格式配置成帧后传送到监视器进行显示,实现H.264解码器输出的视频播放。测试结果表明,视频显示播放可以达到实时要求,完成了一个基于低功耗DSP的实时H.264解码器系统,为移动和无线视频的接收终端的实现打下良好的基础。

This paper introduces the resources configuration and architecture of BF533 platform and addresses the principle of H. 264 decoder briefly. Then we configure the hardware resources（PPI,DMA etc. ） and deliver the video data which is configured by ITU - 656 format to display on monitor realizing the display of video - out of H. 264 decoder. The results of test demonstrate the video display can meet the real - time demand and complete the H. 264 decoder system which is based on low power consumption DSP,and then lay the foundation for realization of mobile and wireless terminate.