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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 ...
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This is a listing of open-source codecs—that is, open-source software implementations of audio or video coding formats, audio codecs and video codecs respectively. Many of the codecs listed implement media formats that are restricted by patents and are hence not open formats.
Audio file icons of various formats. An audio file format is a file format for storing digital audio data on a computer system. The bit layout of the audio data (excluding metadata) is called the audio coding format and can be uncompressed, or compressed to reduce the file size, often using lossy compression.
DAISY Digital Talking Book – a talking book format; Musepack – an audio codec; MP3 – lossy audio codec, previously patented; Ogg – container for Vorbis, FLAC, Speex and Opus (audio formats) & Theora (a video format), each of which is an open format; Opus [2] – a lossy audio compression format developed by the IETF.
Videoonwikipedia.ogv (Ogg multiplexed audio/video file, Theora/Vorbis, length 4 min 4 s, 720 × 480 pixels, 2.13 Mbps overall, file size: 61.83 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
An audio coding format [1] (or sometimes audio compression format) is a content representation format for storage or transmission of digital audio (such as in digital television, digital radio and in audio and video files). Examples of audio coding formats include MP3, AAC, Vorbis, FLAC, and Opus. A specific software or hardware implementation ...
Some are combinations of common container formats and audio and video coding profiles, such as AVCHD and DivX formats. 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 ...