transcoding          
noun [ U ]  computing specialized uk/trænˈskəʊ.dɪŋ/ us/trænˈskoʊ.dɪŋ/
 转码(将以某种代码储存的电脑信息转换为另一种代码)
the process of changing computer information that is stored in a particular code (= a language used to program computers) into another code
  The software provides "transcoding" - translation between standard web pages written in standard HTML (Hypertext Markup Language) and Wap's WML (Wireless Markup Language). 该软件提供“转码”功能——在用标准HTML语言(超文本标记语言)和用无线应用协议规定的WML语言(无线标记语言)编写的标准网页之间进行翻译。 
  转码,转换格式(将影音文件从一种格式转换为另一种格式)
the process of changing a media file (= a file that contains sound and video) from one format (= the way in which information is arranged and stored on a computer) to another
  It is a very nice computing machine for DVD transcoding.  这是一款非常不错的DVD转码计算机。 
 Once on the hard disk all sorts of transcoding is possible.  一旦在硬盘上就可以进行各种格式转换。 
 - More examples
 - VLS is a lightweight solution that does not support as many file formats, transcoding features and control interfaces as VLC, but uses a lot less processing power.
 - The DX6225 offers multi-format transcoding of HD video.
 - I didn’t have any luck with MPEG2 transcoding for video.
 - I'm able to take advantage of advanced transcoding and media streaming capabilities.