The Video format introduction - MPEG

MPEG (Moving Picture Experts Group) is an abbreviation of Motion Picture Experts Group. This format includes multiple video formats including MPEG-1, MPEG-2 and MPEG-4. MPEG-1 is believed to be the most popular, because it is being widely used in VCD production and some video clip download network applications. Most VCDs are compressed in MPEG1 format (burning software automatically converts MPEG1) Converted to DAT format), using a MPEG-1 compression algorithm, you can compress a 120-minute movie to a size of 1.2 GB. MPEG-2 is used in the production of DVDs, and there are quite a few applications in some HDTV (High Definition Television Broadcasting) and some high-demand video editing and processing. Compressing a 120-minute movie using MPEG-2 compression can be compressed to 5-8 GB (MPEG2 image quality is unmatched by MPEG-1). The MPEG series of standards has become the most influential multimedia technology standard in the world. MPEG-1 and MPEG-2 are first-generation data compression coding technologies based on the same principle, such as predictive coding, transform coding, entropy coding and motion compensation; MPEG -4 (ISO/IEC 14496) is an international standard based on second-generation compression coding technology. It uses audio-visual media objects as the basic unit and content-based compression coding to realize digital video and audio, graphics synthesis applications and interactive Multimedia integration. The MPEG series of standards has had a tremendous and far-reaching impact on the development of audiovisual consumer electronics such as VCDs and DVDs, as well as digital television and high definition television (DTV & & HDTV), multimedia communications and other information industries.