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The Research and Design of Multimedia Processor Based on H.264 and Davinci Technology

Author: BaiPeng
Tutor: LiWenFeng
School: Xi'an University of Science and Technology
Course: Signal and Information Processing
Keywords: Davinci technology TMS320DM6446 Multimedia information
CLC: TP332
Type: Master's thesis
Year: 2008
Downloads: 259
Quote: 2
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Abstract


In recent years , China 's mine safety situation is grim , and some deficiencies in terms of function , size, weight , and other mine safety equipment . Therefore, this paper designed a multimedia processor technology based on H.264 and Davinci mine emergency rescue . The main function of the system include : video capture , compression , storage, display and transmission ; two-way audio communication and storage ; environmental parameters collection , storage and transmission . This design uses Davinci technology to build a system of hardware and software platform . Davinci technology the TI company to meet the multifaceted needs of audio and video system development and launch of a new range of specialized technology . Efficient optimize the processor chip based on audio and video compression applications , high integration , processing speed and other characteristics ; modular software framework of the higher complexity of the algorithm part , enhanced algorithms and applications independence , audio and video codec algorithm has good scalability . The system uses H.264 video compression format ; adjustable image resolution , the maximum D1 (704 × 576); video frame rate adjustable to a maximum of 25 frames / sec . In this paper, a modular design , and complete system hardware and software design and partial implementation . Hardware part , TMS320DM6446 Davinci technology chip as the main processor , the internal integration of the chip the ARM9 core DSP64x DSP core , system integration , and reduce the system cost of board-level ; major peripheral modules include storage module , video module , audio module network communication module , universal asynchronous serial module to control the management module , power supply module . The software part of the development of the Davinci technical software framework , MontaVista Linux as the operating system ; video data acquisition and compression encoding , MSP430 MCU program , as well as the detailed analysis and design of multimedia network based on TCP / IP protocol communication program . The system is a new field of security monitoring equipment , can be applied to a mine emergency rescue , popularization and application in other areas of security research . Currently, the system hardware part of the commissioning work has been basically completed; software major functional modules to complete the design , capable of normal operation on TI Davinci video development evaluation board to achieve the expected performance requirements .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Electronic digital computer (not a continuous role in computer ) > Arithmetic unit and the controller (CPU)
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