MPEG-4

digital multimedia format most commonly used to store video and audio

MPEG-4 is a group of international standards for the compression of digital audio and visual data, multimedia systems, and file storage formats. It was originally introduced in late 1998 as a group of audio and video coding formats and related technology agreed upon by the ISO/IEC Moving Picture Experts Group (MPEG) (ISO/IEC JTC 1/SC29/WG11) under the formal standard ISO/IEC 14496 – Coding of audio-visual objects. Uses of MPEG-4 include compression of audiovisual data for Internet video and CD distribution, voice (telephone, videophone) and broadcast television applications. The MPEG-4 st

standard for video compression

Audio compression format from MPEG

Xvid (formerly "XviD") is a video codec library following the MPEG-4 video coding standard, specifically MPEG-4 Part 2 Advanced Simple Profile (ASP). It uses ASP features such as b-frames, global and quarter pixel motion compensation, lumi masking, trellis quantization, and H.263, MPEG and custom quantization matrices.

x264 is a free and open-source software library and a command-line utility developed by VideoLAN for encoding video streams into the H.264/MPEG-4 AVC video coding format. It is released under the terms of the GNU General Public License.

file format

Video compression format

AVC-Intra is a term used by Panasonic to refer to its profiles of the H.264/MPEG-4 AVC standard encapsulated in MXF-format files. Among other features, it records video with only intra coding, so as to make it possible to edit videos without loss of quality, and makes other simplifications such as making the size of each frame fixed. The original AVC-Intra defines 10-bit 4:2:0 coding at 50 Mbit/s or 10-bit 4:2:2 at 100 Mbit/s for 1080p/i or 720p/i video.

third part of the ISO/IEC MPEG-4 international standard

lossless audio coding format

extension to 3D film television standards

multimedia container format

File compression format

extension to the MPEG-4 Part 3 (MPEG-4 Audio) standard