Design And Implementation Of Video Coding System Based On TI DM8148 Architecture

This article from the three mainstream video coding program at home and abroad to start a comprehensive comparison of its advantages and disadvantages,For the existing market coding system to deal with a single video format,decided to use a powerful,cost-effective TI program.we propose a multi-interface video coding scheme and adopt TI DSP(TMS320DM8148)+ FPGA architecture to design a variety of common video interfaces in the same system,so that the hardware can be changed without changing the hardware Structure of the premise,by changing the software control,to achieve the different camera to capture the video source code.First,from the hardware to start,design simulation,digital video interface,Camera Link interface,HDMI(HD)interface,four video input interface,basically meet most of the market interface requirements on the market.Output interface designed USB interface,high-definition output interface and Gigabit Ethernet port,you can more convenient and faster with the host computer or other devices to communicate,for software control to provide a wealth of hardware platform.And then on the basis of the system hardware,combined with FPGA logic control and DSP software control,analysis of the system workflow.FPGA logic mainly analyzes the video acquisition logic that is four kinds of interface acquisition timing logic,data cache logic,FPGA and DSP communication logic between.DSP software analysis from the TI Da Vinci ?(Da Vinci)architecture to start its internal structure and function modules to describe the introduction from the module function and contact,a detailed description of how to use software to achieve H.264 video encoding.Finally,through the static coding verification analysis to get the coding factor of about 80 or so,and trough the dynamic coding to verify the design of the entire system can work properly and coding normal,and sunned up the full text,the system is not enough and the next step forward.