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[DirextX] 123123DirectShow DL : 0: 基于DirectShow视频帧实时捕捉的设计与实现主要针对远程教育等软件系统中现存的􀀂 黑屏问题提出一种解决方案。运用D irectShow 技术对多媒体文件或多媒体流中的视频流进行处理, 实现从多媒体文件视频流中进行视频帧的实时捕获, 而后调用W indow s中GDI函数对获取的图像帧进行渲染, 最后按照M PEG2标准合成AVI视频文件并可以实时重放。-In this pape r, w e present a so lution to reso lve the .. black screen problem occurred in softw are sy stem such as distance education, etc. Firstly, w e imp lem ent the v ideo..fram es rea l..tim e capturing from v ideo stream ofm ultim edia files by using D irectShow technology to dea lw ith mu ltim ed ia files or v ideo stream in mu ltimed ia stream. Then, the GDI function o fW indow s is invoked to render the im ag e fram es, wh ich are captured by the DirectShow. Fina lly, acco rd ing to the standard o fMPEG2 a file is com posed in AVI v ideo fo rm at wh ich is able to replay rea l..tim ely.
Date : 2025-12-24 Size : 1.71mb User : zhu