A method and apparatus for a computer graphics system identifies the format of video pixel data in a data stream having a plurality of data formats including a first pixel data format and a second pixel data format, the second pixel data format being a YUV format. The method comprises the ...http://www.google.com.hk/patents/US5703622?utm_source=gb-gplus-share專利 US5703622 - Method for identifying video pixel data format in a mixed format data stream 
