sip 揭密英文版，学习sip协议很好的教程，可以与中文版一块阅读。-Inside sip English, learning a good tutorial sip agreement, with the Chinese version of a piece of reading.

Video Demystified 视频解密，我找到的中文翻译，这是学习视频方面的一本经典书籍-Video Demystified video decryption, I found the Chinese translation, which is to study video in a classic book

Video Demystified中文版：详细介绍TV标准，视频信号，颜色空间，数字视频信号处理等，对于想从事手机视频方面的同事，极力推荐阅读。-Video Demystified Chinese version: details of TV standard video signals, color space, digital video signal processing and so on, who want to engage