Ogg - Revision history

MrZeus: /* Detecting Ogg files and extracting information */

2017-11-20T14:41:11Z

Detecting Ogg files and extracting information

← Older revision		Revision as of 14:41, 20 November 2017
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	== Detecting Ogg files and extracting information ==		== Detecting Ogg files and extracting information ==

	Ogg files begin with a signature "OggS". This signature also repeats many times inside the file, at the beginning of every page. There are several tools to get information about Ogg files:		Ogg files begin with a signature "OggS". This signature also repeats many times inside the file, at the beginning of every page.

			There are several tools to get information about Ogg files:
	* Ogginfo - part of Vorbis-Tools, supports Vorbis codec only (historical Ogg-vs-Vorbis issue), other codecs cause it to report garbage		* Ogginfo - part of Vorbis-Tools, supports Vorbis codec only (historical Ogg-vs-Vorbis issue), other codecs cause it to report garbage
	* Opusinfo - part of Opus-Tools, supports only Opus codec well, only minimal Vorbis support		* Opusinfo - part of Opus-Tools, supports only Opus codec well, only minimal Vorbis support
	* Oggz ???		* Oggz ???
	* ~~MediaInfo~~ [http://sourceforge.net/projects/mediainfo/ ~~sf.net/projects/mediainfo~~] - provides information about media (and some other) files, supports many types, also Ogg with various codecs, generic audio and video information only, no Ogg-specific details		* [http://sourceforge.net/projects/mediainfo/ MediaInfo] - provides information about media (and some other) files, supports many types, also Ogg with various codecs, generic audio and video information only, no Ogg-specific details.

	== Projects using Ogg ==		== Projects using Ogg ==

MrZeus: /* Specification / standard */

2017-11-20T14:36:49Z

Specification / standard

← Older revision		Revision as of 14:36, 20 November 2017
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	== Specification / standard==		== Specification / standard==

	The Ogg transport bitstream and file format is defined in RFC 3533 approved 2003-May. As RFC documents are invariable once approved, there will never be newer versions of RFC 3533, but an [[RFC_3533_Errata]] exists instead. Existing flaws are discussed at [[OggIssues]], ideas for the future at [[TransOgg]].		The Ogg transport bitstream and file format is defined in RFC 3533 approved 2003-May. As RFC documents are invariable once approved, there will never be newer versions of RFC 3533, but an [[RFC_3533_Errata]] exists instead.

			Existing flaws are discussed at [[OggIssues]], ideas for the future at [[TransOgg]].

	== Detecting Ogg files and extracting information ==		== Detecting Ogg files and extracting information ==

MrZeus: /* Codecs */ remove duplicate Opus listing

2017-11-19T21:07:51Z

Codecs: remove duplicate Opus listing

← Older revision		Revision as of 21:07, 19 November 2017
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	=== Codecs ===		=== Codecs ===

	* [[Opus]]
	* [[CMML]]		* [[CMML]]
	* [[FLAC]] ([http://xiph.org/flac/ogg_mapping.html Ogg mapping])		* [[FLAC]] ([http://xiph.org/flac/ogg_mapping.html Ogg mapping])

MrZeus: /* Name */ linkify Netrek

2017-11-19T21:05:09Z

Name: linkify Netrek

← Older revision		Revision as of 21:05, 19 November 2017
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	== Name ==		== Name ==

	Ogg derives from "ogging", jargon from the computer game Netrek. Ogg is not an acronym and should not be mentioned as "OGG".		Ogg derives from "ogging", jargon from the [https://wikipedia.org/wiki/Netrek computer game Netrek]. Ogg is not an acronym and should not be mentioned as "OGG".

	== Design constraints for Ogg bitstreams ==		== Design constraints for Ogg bitstreams ==

MrZeus: /* Ogg page format */

2017-08-01T10:26:53Z

Ogg page format

← Older revision		Revision as of 10:26, 1 August 2017
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	\| \| CRC_checksum \| 20-23		\| \| CRC_checksum \| 20-23
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	\| \|page_segments \| segment_table \| 24-27		\| \| page_segments \| segment_table \| 24-27
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
	\| ... \| 28-		\| ... \| 28-

MrZeus: /* Developer info */

2016-11-15T12:30:07Z

Developer info

← Older revision		Revision as of 12:30, 15 November 2016
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	== Developer info ==		== Developer info ==

	* [[GranulePosAndSeeking]] -- a discussion of the interpretation of granulepos, and the algorithm for seeking on Ogg files		* [[GranulePosAndSeeking]] - a discussion of the interpretation of granulepos, and the algorithm for seeking on Ogg files
			* [[FishFaq]] - also discusses Granule Position

	=== Ogg page format ===		=== Ogg page format ===
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	\| ... \| 28-		\| ... \| 28-
	+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+		+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


	== Implementations ==		== Implementations ==

Silvia: remove annodex.net links

2016-05-22T07:52:17Z

remove annodex.net links

← Older revision		Revision as of 07:52, 22 May 2016
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	=== Servers ===		=== Servers ===

	* [http://www.annodex.net/ Annodex]
	* [[Icecast]]		* [[Icecast]]
	* [http://www.metavid.org/ Metavid]		* [http://www.metavid.org/ Metavid]
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	* libogg: [http://svn.xiph.org/trunk/ogg/ libogg svn] (C, cross-platform) Low-level Ogg parsing and writing.		* libogg: [http://svn.xiph.org/trunk/ogg/ libogg svn] (C, cross-platform) Low-level Ogg parsing and writing.
	* liboggz: [http://git.xiph.org/?p=liboggz.git liboggz git~~] or [http://annodex.net/software/liboggz/index.html DEAD:liboggz~~] (C, cross-platform) liboggz wraps libogg and provides features such as seeking.		* liboggz: [http://git.xiph.org/?p=liboggz.git liboggz git] (C, cross-platform) liboggz wraps libogg and provides features such as seeking.
	* the Ogg Directshow filters: see [http://www.illiminable.com/ogg/ illiminable] (C++, Win32)		* the Ogg Directshow filters: see [http://www.illiminable.com/ogg/ illiminable] (C++, Win32)
	* [http://www.kfish.org/software/hogg HOgg] (pure Haskell)		* [http://www.kfish.org/software/hogg HOgg] (pure Haskell)

MrZeus: /* See also */ add Flash

2015-08-18T23:33:13Z

EPirat: /* Projects using Ogg */ Update outdated FLAC Ogg mapping URL

2015-04-30T15:35:26Z

Projects using Ogg: Update outdated FLAC Ogg mapping URL

← Older revision		Revision as of 15:35, 30 April 2015
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	* [[Opus]]		* [[Opus]]
	* [[CMML]]		* [[CMML]]
	* [[FLAC]] ([http://flac~~.sourceforge.net~~/ogg_mapping.html Ogg mapping])		* [[FLAC]] ([http://xiph.org/flac/ogg_mapping.html Ogg mapping])
	* [[OggKate\|Kate]]		* [[OggKate\|Kate]]
	* [http://opus-codec.org/ Opus] ([[OggOpus\|Ogg mapping]])		* [http://opus-codec.org/ Opus] ([[OggOpus\|Ogg mapping]])

Daala-ts: Minor copyediting

2015-02-07T01:10:04Z

Minor copyediting

← Older revision		Revision as of 01:10, 7 February 2015
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	The '''Ogg''' transport bitstream is designed to provide framing, error protection and seeking structure for higher-level codec streams that consist of raw, unencapsulated data packets, such as the [[Opus]], [[Vorbis]] and [[FLAC]] audio codecs or [[Theora]] and [[Dirac]] video codecs.		The '''Ogg''' transport bitstream is designed to provide framing, error protection and seeking structure for higher-level codec streams that consist of raw, unencapsulated data packets, such as the [[Opus]], [[Vorbis]] and [[FLAC]] audio codecs or the [[Theora]] and [[Dirac]] video codecs.

	== Name ==		== Name ==
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	== Detecting Ogg files and extracting information ==		== Detecting Ogg files and extracting information ==

	Ogg files do begin with a signature "OggS"~~, this~~ signature also repeats many times inside the file, at the beginning of every page. There are several tools to get information about Ogg files:		Ogg files begin with a signature "OggS". This signature also repeats many times inside the file, at the beginning of every page. There are several tools to get information about Ogg files:
	* Ogginfo - part of Vorbis-Tools, supports Vorbis codec only (historical Ogg-vs-Vorbis issue), other codecs cause it to report garbage		* Ogginfo - part of Vorbis-Tools, supports Vorbis codec only (historical Ogg-vs-Vorbis issue), other codecs cause it to report garbage
	* Opusinfo - part of Opus-Tools, supports only Opus codec well, only minimal Vorbis support		* Opusinfo - part of Opus-Tools, supports only Opus codec well, only minimal Vorbis support

← Older revision		Revision as of 23:33, 18 August 2015
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	== See also ==		== See also ==

			* [[Flash]]
	* [[Oggless]]		* [[Oggless]]
	* [[MIME Types and File Extensions]]		* [[MIME Types and File Extensions]]