GB/T 20090 specifies the technical solutions for compression, decompression, processing and presentation of digital audio and video. This part of GB/T 20090 specifies video compression methods and decoding processes for various bit rates, resolutions and qualities. This section applies to applications such as high-resolution and standard-resolution digital television broadcasting, laser digital storage media, Internet broadband streaming media, and multimedia communications. This part applies to applications such as digital TV broadcasting, interactive storage media, live satellite video services, multimedia mail, multimedia services over packet networks, real-time communication services, and remote video surveillance.
GB/T 20090.2-2013 history
2013GB/T 20090.2-2013 Information technology.Advanced coding of audio and video.Part2:Video
2006GB/T 20090.2-2006 Information technology-Advanced coding of audio and video-Part 2:Video