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The M4V file format is a video container format developed by Apple and is very similar to the MP4 format. The primary difference is that M4V files may optionally be protected by DRM copy protection. Its first public appearance was in 2006, when Apple introduced the iTunes Store. The M4V format has been an important part of the Apple ecosystem ...
Although sometimes compared to DivX products, Xvid is neither a container format nor a video format, it is a software library that encodes video using specific coding profiles of the common MPEG-4 ASP video format. Those types of restrictions are intended to simplify the construction of multimedia recorders and players.
A video file format is a type of file format for storing digital video data on a computer system. Video is almost always stored using lossy compression to reduce the file size. A video file normally consists of a container (e.g. in the Matroska format) containing visual (video without audio) data in a video coding format (e.g. VP9 ) alongside ...
Raw MPEG-4 Visual bitstreams are named .m4v but this extension is also sometimes used for video in MP4 container format [21] or in the M4V container format. Mobile phones used to use 3GP , an implementation of MPEG-4 Part 12 (a.k.a. MPEG-4/JPEG2000 ISO Base Media file format), similar to MP4.
AVCHD Lite is a subset of AVCHD format announced in January 2009, [19] which is limited to 720p60, 720p50 and 720p24 and does not employ Multiview Video Coding. [20] AVCHD Lite cameras duplicate each frame of 25fps/30fps video acquired by camera sensor, [ 21 ] producing 720p50/720p60 bitstream compliant with AVCHD and Blu-ray Disc specifications.
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 ...
A video format is a medium for video recording and reproduction. The term is applied to both the physical recording media and the recording formats . Video is recorded and distributed using a variety of formats, some of which store additional information.
The Apple Lossless Audio Codec (ALAC, / ə ˈ l æ k /), also known as Apple Lossless, or Apple Lossless Encoder (ALE), is an audio coding format, and its reference audio codec implementation, developed by Apple Inc. for lossless data compression of digital music.
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