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What format is mpeg4

Apr 19, 2021 pm 04:03 PM

mpeg4 is developed based on Microsoft's MPEG4 v3 standard; its video part uses MPEG4 format compression, with high-definition image quality comparable to DVD; the audio part uses MP3 format for high-quality compression.

What format is mpeg4

#The operating environment of this article: Windows 7 system, Dell G3 computer.

The MPEG4 format is developed based on Microsoft's MPEG4 v3 standard. Its video part is compressed in MPEG4 format, with high-definition quality comparable to DVD; its audio part is compressed in MP3 format with high quality; finally, the video part and audio part are combined into an AVI file that is refreshing enough for us. MPEG4 is one of the Internet video image compression standards. It is characterized by high compression ratio, clear imaging, and small capacity. A DVD-9 disc can store more than 10 high-definition MPEG4 online movies.

MPEG4 video compression algorithm can provide extremely high compression ratio, up to 200:1. More importantly, MPEG provides a high compression ratio with very little loss of data. MPEG4 is the latest image compression technology standard proposed by MPEG. It can be said that it challenges DVD and suppresses SVCD. The threat it poses to DVD and SVCD is self-evident (some people say it is a DVD killer). It is said that MPEG4 is an encoding technology banned from export by the United States. Using it to encode and compress a DVD requires only two CDROMs. Moreover, playing (decompressing) this encoding does not require high hardware requirements for the machine.

The current MPEG4 is not perfect. Although it can be compared with DVD in terms of ordinary pictures, MPEG4 is a lossy compression algorithm with a high compression ratio after all. It is explosive and fast in the performance of movies. When playing sports and other scenes, its shortcomings begin to be exposed - common problems in VCDs such as slight mosaic and mottled color also begin to occur here, and its image quality cannot be fully compared with the MPEG-2 technology used in DVD. I hope to gradually improve it in the future as the MPEG4 production and playback software further improves the compression and decompression algorithms.

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