The link you shared points to the English-language portal of Baidu Baike (specifically, the entry for the XviD video codec). Baidu Baike is China’s leading collaborative online encyclopedia.
The specific page details the history, technical features, and massive cultural footprint of XviD during the early-to-mid 2000s digital video boom. Core Summary of the Page
The entry explains that XviD is an open-source MPEG-4 video codec that was originally developed as a free, libre alternative to the commercial DivX codec. Its name is literally “DivX” spelled backwards to emphasize this rivalry. The page highlights that at its peak, XviD encoded roughly 90% of all movies and TV shows shared on early peer-to-peer file-sharing networks like BitTorrent and eMule. Key Technical Features Highlighted
According to the page and standard codec documentation, XviD operates on the MPEG-4 Part 2 Advanced Simple Profile (ASP) standard. It is noted for several sophisticated compression techniques: 百度百科_百度百科