This standard specifies the technical requirements and measurement methods for standard definition digital television encoders and decoders using GB/T 17975.2-2000 main stage for video encoding and decoding, and GB/T17191.3-1997 layer II for audio encoding and decoding. Any equivalent measurement method that can ensure the same measurement uncertainty can also be used, and in case of dispute, this standard shall prevail. This standard is applicable to the development, testing, production, use, and maintenance of MPEG-2 standard definition encoders and decoders. The following normative references are essential for the application of this standard. For dated references, only the dated version applies to this standard. For undated references, the latest version (including all amendments) applies to this standard. GB/T 16649.1-2006 Identification Cards - Integrated Circuit Cards with Contact Points: Part 1: Physical Characteristics GB/T 16649.2-2006 Identification Cards: Integrated Circuit Cards with Contact Points: Part 2: Dimensions and Positions of Contact Points GB/T 16649.3-2006 Identification Cards - Integrated Circuit Cards with Contact Points - Part 3: Electrical Signals and Transmission Protocols GB/T 17191.3-1997 Information Technology: Coding of Moving Images and Accompanying Sound for Digital Storage Media with a Data Transmission Rate of 1.5 Mbit/s Part 3: Audio GB/T 17953-2012 Standard Definition Television 4:2:2 Digital Component Video Signal Interface GB/T 17975.1-2010 Information Technology, General Coding of Moving Images and Associated Sound Information, Part 1: System GB/T 17975.2-2000 Information Technology, General Coding of Moving Images and Associated Sound Signal, Part 2: Video GB/T 17975.3-2002 Information Technology, General Coding of Moving Images and Associated Sound Signal, Part 3: Audio
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