MPEG Standard MPEG Purpose of this page is to give you quick look on the MPEG standard, and to give some directions for you who decide to get deeply into it. The topics, which are covered in three parts of MPEG standard, are coding of video and audio including synchronization of audio and video bitstreams with multiple interleaved video sequences. The most important differences between them are data rate and applications. A video stream is a sequence of individual frames.
Every frame is a still image which shown together, one after another, become a video motion picture.
Usually at rate close to 30 frames per second. The YUV format is subsampled. All luminance information is retained. Thus, there are 2 bits per pixel for any of U and V information. This subsampling does not drastically affect quality because the eye is more sensitive to luminance than to chrominance information.