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The embedded video multipoint processor of MCU in videoconferencing system is presented. The video multipoint processor of the MCU employs the embedded high quality DSP, which is connected to the PC with a PCI interface. The MCU with the embedded system can meet the requirements of real time and video processing in videoconference. The software of MCU is an open system based on PC platform and can be designed for customized applications. The realization of video multipoint processor on DSP is described. The solution of key problem is given in detail and the performance of the system is analyzed.