DVR Decoder Software Design Based On DaVinci Processor

With the development of communication technology, the demands of video surveillance have been shifted from the analog to the digital as well as the high-definition digital video surveillance. Currently, high performance DSP offers a solid platform for the development of the video surveillance technology. This thesis designs decoder software of video surveillance system based on TI DM6437 platform.Chapter 1 gives the software background of video and audio compressing technology, and the development of DSPs. It also introduces the purpose and the task of the software design;Chapter 2 describes the audio and video codec algorithms in the software based on G.711 and H.264;Chapter 3 introduces the peripheral, the core architecture, and the memory architecture of TI DM6437 DSP and its integrated development environment-CCS;Chapter 4 presents the design of DVR decoder software's architecture, from hardware and software, it also presents the design of the audio and video synchronization controlling algorithms in decoder software;Chapter 5 discusses the optimization of H.264 decoder;Chapter 6 summarizes the design of the whole system in this thesis and discusses the possible future works to be accomplished.