基于中间文件的视频编辑与播放系统
发布时间：2018-11-14 14:23
【摘要】：视频编辑技术被广泛的应用于影视后期处理、广告制作、视频教学等领域,如何能简单、快捷的制作出用户需要的视频效果一直是相关领域的研究课题。现有的视频编辑技术主要分两种:线性视频编辑和非线性视频编辑。线性编辑技术是一种利用磁带的编辑方式,它使用电子手段根据节目内容的需要将素材拼接成新的连续画面,现在已经很少使用。非线性编辑技术采用数字压缩技术压缩视频,后期制作的所有功能都由一台计算机来完成,大多数视频编辑软件采用的都是该技术。非线性编辑技术会直接修改原有的视频数据,这样在编辑后的视频中删除某个特效就变得几乎不可能,对某些需要反复编辑的视频,例如教学视频,现有的非线性编辑技术已经不能满足需求。针对上述情况,论文提出了一种新的视频编辑方法,该方法可有效解决现有视频编辑方法存在的问题,并在此基础上开发了一个能够编辑和播放视频的软件系统,以验证该方法的可行性。通过使用一个中间文件存储编辑信息,编辑视频时就无需修改原有的视频数据,对视频的编辑也只用修改该中间文件,这样多次编辑视频就变为可行。论文首先对视频压缩编码技术和视频解码技术进行了总结分析,并且研究了专用视频的解码结构。然后对编辑和播放系统的整体架构和各个子模块结构进行了详细设计,重点是中间文件格式的设计,经过对系统支持的特效类型和特效属性进行编码,论文设计出了完整可靠的中间文件格式。接着实现了系统的各个核心模块,主要是视频编辑模块和视频播放模块。最后构建测试样例,对系统的功能进行实验测试,并对实验测试结果进行总结和分析。实验测试结果表明,该编辑与播放系统功能完备,性能稳定,能较好的完成视频编辑与播放任务,进而验证了论文提出的基于中间文件进行视频编辑方法的可行性,达到了论文所预期的目标。
[Abstract]:Video editing technology has been widely used in film and television post-processing, advertising production, video teaching and other fields, how to make a simple, fast video effects that users need has been a research topic in related fields. The existing video editing techniques are mainly divided into two types: linear video editing and nonlinear video editing. Linear editing is a kind of editing method using magnetic tape. It uses electronic means to assemble materials into new continuous pictures according to the needs of program content, which is rarely used now. Non-linear editing technology uses digital compression technology to compress video. All the functions of post-production are accomplished by one computer. Most video editing software uses this technology. The non-linear editing technique directly modifies the original video data, which makes it almost impossible to delete a special effect from the edited video, for certain videos that need to be edited repeatedly, such as instructional videos. The existing nonlinear editing technology can not meet the needs. In view of the above situation, a new video editing method is proposed, which can effectively solve the problems existing in the existing video editing methods. On this basis, a software system for editing and playing video is developed. To verify the feasibility of the method. By using an intermediate file to store editing information, there is no need to modify the original video data while editing the video, and only the intermediate file is modified for the editing of the video, so it becomes feasible to edit the video many times. Firstly, the video compression coding technology and video decoding technology are summarized and analyzed, and the decoding structure of special video is studied. Then, the whole structure of the editing and playing system and the structure of each sub-module are designed in detail. The emphasis is on the design of the intermediate file format, and the special effect types and special effects attributes supported by the system are coded. A complete and reliable intermediate file format is designed. Then the core modules of the system are implemented, mainly video editing module and video playing module. Finally, a test example is built to test the function of the system, and the test results are summarized and analyzed. The experimental results show that the editing and playing system has a complete function, stable performance, and can complete the task of video editing and playback. The feasibility of the video editing method based on intermediate files is verified. Achieve the expected goal of the paper.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP391.41
[Abstract]:Video editing technology has been widely used in film and television post-processing, advertising production, video teaching and other fields, how to make a simple, fast video effects that users need has been a research topic in related fields. The existing video editing techniques are mainly divided into two types: linear video editing and nonlinear video editing. Linear editing is a kind of editing method using magnetic tape. It uses electronic means to assemble materials into new continuous pictures according to the needs of program content, which is rarely used now. Non-linear editing technology uses digital compression technology to compress video. All the functions of post-production are accomplished by one computer. Most video editing software uses this technology. The non-linear editing technique directly modifies the original video data, which makes it almost impossible to delete a special effect from the edited video, for certain videos that need to be edited repeatedly, such as instructional videos. The existing nonlinear editing technology can not meet the needs. In view of the above situation, a new video editing method is proposed, which can effectively solve the problems existing in the existing video editing methods. On this basis, a software system for editing and playing video is developed. To verify the feasibility of the method. By using an intermediate file to store editing information, there is no need to modify the original video data while editing the video, and only the intermediate file is modified for the editing of the video, so it becomes feasible to edit the video many times. Firstly, the video compression coding technology and video decoding technology are summarized and analyzed, and the decoding structure of special video is studied. Then, the whole structure of the editing and playing system and the structure of each sub-module are designed in detail. The emphasis is on the design of the intermediate file format, and the special effect types and special effects attributes supported by the system are coded. A complete and reliable intermediate file format is designed. Then the core modules of the system are implemented, mainly video editing module and video playing module. Finally, a test example is built to test the function of the system, and the test results are summarized and analyzed. The experimental results show that the editing and playing system has a complete function, stable performance, and can complete the task of video editing and playback. The feasibility of the video editing method based on intermediate files is verified. Achieve the expected goal of the paper.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TP391.41
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