Digital library is a new concept and a new technology. The types of data include multimedia information such as text, voice, image and video, etc.
数字图书馆是一种新概念和新技术，数据类型包括文本、语音、图像、视频等多媒体信息。
Key techniques for the realization of content-based video retrieval in digital library include video data modeling, video segmentation, video indexing, and video searching and browsing.
实现数字图书馆中基于内容的视频检索的关键技术包括：视频数据建模、视频分割、视频索引、视频查询与浏览。
The sender starts by reading media data, such as video frames, into a buffer from which encoded frames are produced. In the Managed Rtp Library, the RtpSender is used for:.
发送方从读取媒体数据开始，比如视频桢，到缓冲里，此原始数据再编码为编码桢。
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