Stream technology based on - line classroom with the functions of video playing , graphics upload and browsing , real - time bulletin discussion , on - line remarks ; ( 3 ) . netmeeting technology based real - time network classroom with a electric white bulletin ; ( 4 ) . online exam and real - time problem - answering system . with these technologies and works , i have tried to construct a network environment with multi - media , real - time feedback as well as favorable and interactive interface 随后，结合《电视教材编导与制作》网络课程开发与设计，着重探讨解决以下问题： 1 、视音频媒体的选择流程； 2 、利用流媒体技术制作集视频播放、图形发布浏览、实时公告讨论，在线评论于一体的多媒体在线教室； 3 、利用netmeeting构建一个简易的具有电子白板的实时教室； 4 、实时答疑考试系统；以上工作就是要构建一个媒体丰富适合、交互良好，实时反馈，具有人性化的网络学习环境。
The 35th rwppi general meeting was held on feb . 17 , 2006 at the head office of pioneer corporation in meguro tokyo . the meeting started off with the speech by the rwppi representative , mr . aizawa . he brought the attention of the remarkably recent worldwide increases in the dvd video camera market , and how the customers interest in playback of images taken from it has grown as well 首先，相泽代表在开幕致辞中说道： “随着当今世界范围内的dvd视频摄像机市场的不断扩大，一般用户对这类利用dvd视频摄像机拍摄图像的视频播放设备越来越关注， rwppi也强烈呼吁dvd - rw与dvd - r应具有更优良的兼容性，以便为更多的用户提供更大的便利” 。
Also we describe the principle , architecture and the recent development tendency of the cmos is . after discussing the structures and characters of many micro image processing systems , we pay attention to the software of the system . research on the programming structures and programming methods are the key contents of the paper , including how to capture video based on vfw how to play video based on mci and how to process images based on dib 本论文针对基于cmos图像传感器的显微图像系统，详细论述了cmos图像传感器的原理、构造及当前的发展状况，阐述了各种显微图像处理系统的构成和特点，并着重针对基于cmos图像传感器的显微图像系统的软件处理问题研究了程序结构和编程方法，就如何使用基于vfw的视频捕捉，基于mci的视频播放，基于dib的图像操作等给出了应用结果。
At last , the thesis puts its emphasis on the design and development of the digital monitor system with client / server framework . some key problems , such as the communication process between the client and the server , the alarm detecting and recording , the control of the remote devices , the synchronization between the audio and video in the playback and the implement process , are illustrated in detail 论文重点讨论的是数字监控系统中服务器和客户端的设计与实现过程，详细阐述了双方的网络通信，论述了报警检测和录像过程，分析了对远端设备的控制，讨论了视频回放中音视频同步策略、视频播放等内容。
The scheme adjusts the audio frame length without impairing audio quality according to the occupied level of audio playout buffer and changes the playout frame rate of video according to the occupied level of video playout buffer to achieve intra - media synchronization of audio stream and video stream 算法分别根据音频和视频播放缓冲区的占用水平，在不影响音频播放质量的情况下调整音频帧的长度，实现音频流媒体内同步；通过改变视频流的播放帧率达到视频流媒体内同步。
