What does mpg format mean?

mpg format is a video file format. The file extension of MPEG format video is usually MPEG or MPG.

MPG, also known as MPEG (Moving Pictures Experts Group), was jointly established in 1988 by the International Standards Organization ISO (International Standards Organization) and IEC (International Electronic Committee), and is dedicated to Standardization work on moving images (MPEG video) and its accompanying sound coding (MPEG audio).

MPEG is the international standard for moving image compression algorithms and is now supported by almost all computer platforms. It includes MPEG-1, MPEG-2 and MPEG-4. MPEG-1 is widely used in the production of VCD (video compact disk), and the vast majority of VCDs use MPEG-1 format compression. MPEG-2 is used in DVD (Digital Video/Versatile Disk) production, HDTV (High Definition Television Broadcasting) and some high-demand video editing and processing. MPEG-4 is a new compression algorithm. The ASF format using this algorithm can compress a 120-minute-long movie into a video stream of about 300 MB, which can be watched online.

MPEG standards mainly include the following five, MPEG-1, MPEG-2, MPEG-4, MPEG-7 and MPEG-21, etc. The expert was established in 1988 and is responsible for establishing video and audio standards for CDs. Its members are technical experts in the fields of video, audio and systems. Later, they successfully separated the recording of sound and images from the traditional analog method, established the ISO/IEC1172 compression coding standard, and formulated the MPEG-format, bringing audiovisual communication into the digital era. Therefore, the MPEG-X version that everyone refers to now is the compression standard for video, audio, and data formulated and released by ISO (International Organization for Standardization).

MPEG standard video compression coding technology mainly uses inter-frame compression coding technology with motion compensation to reduce temporal redundancy, uses DCT technology to reduce spatial redundancy of images, and uses entropy coding to Reduces statistical redundancy in information representation. The comprehensive application of these technologies greatly enhances compression performance.

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