Abstract
Focus on the problem that TI’s dedicated video processor TMS320DM8148 cannot directly collect video data from HDMI interface, this paper presents a video coding system based on H.264.The system used DSP+FPGA architecture, FPGA is responsible for collecting video data of HDMI interface and caching. And then send to DM8148 through GPMC, DM8148 completes video encoding and decoding through the interaction of internal modules. The results show that video is displayed clearly and smoothly, without distortion or error. It successfully realizes the collection of the video data of HDMI interface obtained with DM8148.
Highlights
In recent years, digital image technology has been widely used in security, medical treatment, education, and monitoring, which has led to a great development and attention
This paper designs and implements a high definition video coding system based on HDMI interface
The received high definition video information is cached in the internal FIFO of FPGA, be sent to the FIFO of
Summary
Digital image technology has been widely used in security, medical treatment, education, and monitoring, which has led to a great development and attention. With the continuous improvement of video quality, the storage speed and the bandwidth growth speed cannot meet its requirements. HDMI HD video interface has the features of higher bandwidth and higher resolution, and integrates video transmission and audio transmission, which greatly simplifying the cable connection settings. The DSP of TMS320DM8148 of TI is a special chip with rich video image processing module and low power consumption. It can achieve the processing of 1 channel 1080P/60fps or 4 channels 720P/60fps, and the speed is fast. This paper designs and implements a high definition video coding system based on HDMI interface
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