【摘要】 文中研制数字电视信号源中的码流截取卡,实现传输流经卡的缓存器,通过计算机PCI总线写入硬盘。所得码流文件,可作为数字电视设备或系统的测试码流,也可对其进行分析。实验结果表明,方案合理,所截取的码流连续、无误。更多还原

【Abstract】 In this paper, we research and produce the transfer stream getting card for digital television signal source, transfer stream is gotten by FIFO and written into hard disc through computer PCI bus. As stream file, which can be the test stream for digital television equipment or system, and also be analyzed. The experiment result shows that the scheme is rational, the getting stream is continuous and correct.更多还原