基于ARM Cortex-A8平台的视频硬件编解码处理的研究

发布时间：2018-06-30 09:26

本文选题：Cortex-A8 + S5PV210　；参考：《南京理工大学》2014年硕士论文

【摘要】：基于硬件的视频压缩编码处理技术,不仅能够解决原始信息数据量过大的缺陷,同时能够很好地提升对信息数据的处理速度,方便了手持式多媒体设备的数据处理与存储功能。本课题以ARM Cortex-A8处理器为硬件核心,利用其内部的硬件编解码器MFC,实现了一套支持多种视频编解码标准的硬件编解码处理系统。本文首先对主流的视频编解码技术进行了概述；接着,对Cortex-A8构架的ARM处理器进行了详尽的分析,对其内部资源进行了完善的分析利用；之后,提出了以三星公司推出的采用Cortex-A8内核的S5PV210处理器作为核心芯片,利用其内部硬件编解码器MFC (Multi Format Codec)作为视频编解码核心的方案,该方案支持多种目前主流的视频编解码标准,并且在运算速度上较软件编解码处理有很大的提高；接下来,对S5PV210处理器结构中的摄像头接口FIMC (Fully Interactive Mobile Camera)进行了功能介绍与结构分析,以TVP5150解码芯片实现PAL制模拟视频解码功能,在嵌入式Linux环境下完成TVP5150解码芯片的驱动移植,视频采集功能与显示功能分别基于V4L2框架与FrameBuffer框架得以实现；然后,利用内部的MFC编解码器,对原始的YUV数据进行基于H.264标准和MPEG-4标准的硬件编解码,并对整体系统进行了调试,验证了本系统的功能；最后,对本文所做工作进行了总结与进一步展望。
[Abstract]:The technology of video compression and coding based on hardware can not only solve the problem that the original information data is too large, but also improve the processing speed of the information data and facilitate the data processing and storage function of the hand-held multimedia equipment. Taking arm Cortex-A8 processor as the hardware core and using its internal hardware codec (MFC), a hardware codec processing system supporting various video coding and decoding standards is implemented in this paper. This paper first summarizes the mainstream video coding and decoding technology; then, the Cortex-A8 architecture arm processor is analyzed in detail, and its internal resources are analyzed and utilized. In this paper, the S5PV210 processor with Cortex-A8 kernel is used as the core chip, and the internal hardware codec MFC (Multi format Codec) is used as the core of video codec. This scheme supports many popular video coding and decoding standards. And the computation speed is much higher than the software codec processing. Then, the FIMC (full Interactive Mobile camera), a camera interface in the S5PV210 processor architecture, is introduced and analyzed. The pal analog video decoding function is realized with TVP5150 decoder chip, and the driver and transplant of TVP5150 decoding chip are realized under embedded Linux environment. The video capture function and display function are realized based on V4L2 framework and FrameBuffer framework respectively. Using the internal MFC codec, the original YUV data is encoded and decoded based on H.264 and MPEG-4 standard, and the whole system is debugged to verify the function of the system. The work done in this paper is summarized and further prospected.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN919.81

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