Video Acquisition And Processing Functions Design Based On ADSP-BF561

The video processing system plays a vital part of the economic and military, which is widely applied in many aspects such as intelligent traffic system and security system. With the network bandwidth, computer processing power and storage capacity for the rapid increase, video processing system from analog video processing into the digital network aera,that is ,digital video processing system.The paper introduces video system design,specific hardware design and some main aspects such as building the emnedded system platform and the video interface driver. According to the hardware architecture of ADSP-BF561 EZ-KIT Lite board, the paper indicates the system architecture and the datastream of video encoding system. The autherdeveloped the device driver of the PPI0 interface and the ADV7183 which is based on I2C bus interface. At the same time ported the H.264 coding procedures in the dual-core DSP(ADSP-BF561), structures BF561 embedded uClinux and integrating video processing application platform, then have a test for the corresponding procedures.The author's study is mainly designed the digital video processing platform based on the dual-core processor ADSP-BF561, developed the video acquisition interface driver, which prepare for using the H.264 encoding algorithm and the further optimization.