Still, to quote the same reference: "Vorbis, on the other hand is named after the Terry Pratchett character from the book Small Gods". The Ogg Vorbis project started in 1993.
In other words, FLAC stores thumbnails and cover art in binary blocks—outside of the FLAC tags in a little-endian METADATA_BLOCK_VORBIS_COMMENT. Other existing and proposed mechanisms are: FLAC metadata blocks Ogg Skeleton Continuous Media Markup Language (deprecated) ==History== The Ogg project began with a simple audio compression package as part of a larger project in 1993.
In 1997, the Xiphophorus OggSquish was described as "an attempt both to create a flexible compressed audio format for modern audio applications as well as to provide the first audio format that is common on any and every modern computer platform".
The OggSquish was in 2000 referred to as "a group of several related multimedia and signal processing projects".
In 2000, two projects were in active development for planned release: Ogg Vorbis format and libvorbis - the reference implementation of Vorbis.
In 2009, Ogg is described as "a multimedia container format, and the native file and stream format for the Xiph.org multimedia codecs". Ogg reference implementation was separated from Vorbis on September 2, 2000. In May 2003, two Internet RFCs were published relating to the format.
The new name, "OggSquish", was used until 2001 when it was changed again to "Ogg".
In 2001, OggSquish was renamed to Ogg and it was described as "the umbrella for a group of several related multimedia and signal processing projects".
In September 2008, RFC 3534 was obsoleted by RFC 5334, which added content types video/ogg, audio/ogg and filename extensions .ogx, .ogv, .oga, .spx. ===OGM=== In 2002, the lack of formal video support in Ogg resulted in the creation of the OGM file format, a hack on Ogg that allowed embedding of video from the Microsoft DirectShow framework into an Ogg-based wrapper.
It has been put on hold after Theora became the main focus for video encoding (in August 2002). ** Dirac: a free and open video format developed by the BBC.
In 2009, Ogg is described as "a multimedia container format, and the native file and stream format for the Xiph.org multimedia codecs". Ogg reference implementation was separated from Vorbis on September 2, 2000. In May 2003, two Internet RFCs were published relating to the format.
Also supporting the Ogg format were many popular video game engines, including Doom 3, Unreal Tournament 2004, Combat Evolved, Jets n Guns, The City of Lost Heaven, Revelation, StepMania, The Second Encounter, Lineage 2, Vendetta Online, Battlefield 2, and the Grand Theft Auto engines, as well as the audio files of the Java-based game, Minecraft.
Lossless audio compression formats include FLAC, and OggPCM. Before 2007, the .ogg filename extension was used for all files whose content used the Ogg container format.
Since 2007, the Xiph.Org Foundation recommends that .ogg only be used for Ogg Vorbis audio files.
The more popular Vorbis codec had built-in support on many software players, and extensions were available for nearly all the rest. ===2007=== On May 16, 2007, the Free Software Foundation started a campaign to increase the use of Vorbis "as an ethically, legally and technically superior audio alternative to the proprietary MP3 format." People were also encouraged to support the campaign by adding a web button to their website or blog.
In September 2008, RFC 3534 was obsoleted by RFC 5334, which added content types video/ogg, audio/ogg and filename extensions .ogx, .ogv, .oga, .spx. ===OGM=== In 2002, the lack of formal video support in Ogg resulted in the creation of the OGM file format, a hack on Ogg that allowed embedding of video from the Microsoft DirectShow framework into an Ogg-based wrapper.
In 2009, Ogg is described as "a multimedia container format, and the native file and stream format for the Xiph.org multimedia codecs". Ogg reference implementation was separated from Vorbis on September 2, 2000. In May 2003, two Internet RFCs were published relating to the format.
This was in accordance with the original recommendation outlined in, but later removed from, the HTML5 draft specification (see Ogg controversy). ===2010=== On March 3, 2010, a technical analysis by an FFmpeg developer was critical about the general purpose abilities of Ogg as a multimedia container format.
The Xiph.Org Foundation decided to create a new set of file extensions and media types to describe different types of content such as .oga for audio only files, .ogv for video with or without sound (including Theora), and .ogx for multiplexed Ogg. As of November 7, 2017, the current version of the Xiph.Org Foundation's reference implementation is libogg 1.3.3.
Another version, libogg2, has been in development, but is awaiting a rewrite as of 2018.
All text is taken from Wikipedia. Text is available under the Creative Commons Attribution-ShareAlike License .
Page generated on 2021-08-05