摘要
介绍了基于ARMlinux的嵌入式流媒体系统的构建。通过RTP/RTCP实现了流媒体数据服务端的传输,客户端利用IIS总线,IIC总线实现了音频数据及控制信号的传输,在驱动程序设计中通过使用DMA传输及缓存分段技术提高了对音频数据的实时处理,达到了较好的实时性效果。
The construction of embedded streaming media system is introduced. Multimedia data are transported by the streaming medi- a server with RTP/RTCP protocol. The audio data and control signal are transmitted by client with IIS and IIC bus. In the design of audio drivers, DMA transmission and buffer subsection technology enhance the real time process of audio data. The design realizes a synchronized record and playback audio system.
出处
《微计算机信息》
北大核心
2007年第23期67-68,28,共3页
Control & Automation
基金
国家发改委基金资助项目(CNGI-04-1-2D)
