The formats of mpeg4 and mp4 are different. MP4 is a file format, and mpeg4 is a coding standard. The two are not the same concept. It can be understood that mp4 is an audio and video file that supports the mpeg4 standard, and there are many file formats that support the mpeg4 standard, mp4 and avi being one of them.
mpeg4 and mp4 formats are different. mpeg4 is an encoding standard, while mp4 is a file format, and the concepts of the two are completely different.
A video file that supports the mpeg4 encoding standard, which can be in mp4 format or avi format. Therefore, mpeg4 and mp4 are not completely equivalent. They are not concepts at the same level. Please do not confuse them.
Extended information:
MP4 is a set of compression coding standards for audio and video information. It is developed by the "Moving Image Expert Group" under the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). " (Moving Picture Experts Group, or MPEG) was formulated. The first version was adopted in October 1998, and the second version was adopted in December 1999.
The main uses of the MPEG-4 format are online streaming, optical discs, voice transmission (video phone calls), and television broadcasts.
MPEG-4 contains most of the functions of MPEG-1 and MPEG-2 and the advantages of other formats, and adds and expands support for Virtual Reality Modeling Language (VRML), targeting Composite files of objects (including sound effects, video and VRML objects), as well as digital rights management (DRM) and other interactive features.
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