关键词: 音视频数据压缩, FPGA, 缓存器, PCI总线

Abstract:

In this paper, the interface circuit of an audio and video data acquisition system is designed and realized to solve the problem of buffer memory overflow or read empty issue. The interface circuit is designed for audio and video compression data FPGA cache and PCI bus transfer. The method of controlling the use of ping-pong operation switch buffer ensures seamless transfer of data. Simulation results show that the accuracy and stability of the interface circuit designed meets the project requirements and has good engineering application value.

Key words: audio and video compression, FPGA, buffer, PCI bus