Theora

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(Created page with "{{FormatInfo |formattype=electronic |subcat=Video |extensions={{ext|ogg}}, {{ext|ogv}} |pronom={{PRONOM|fmt/945}} |released=≤2008 }} '''Theora''' is a compressed video strea...")
 
(Sample files)
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== Sample files ==
 
== Sample files ==
 
* https://samples.ffmpeg.org/ogg/Theora/
 
* https://samples.ffmpeg.org/ogg/Theora/
 +
* https://telparia.com/fileFormatSamples/video/oggTheora/
  
 
== Links ==
 
== Links ==
 
* [https://www.theora.org/ theora.org]
 
* [https://www.theora.org/ theora.org]
 
* [[Wikipedia: Theora]]
 
* [[Wikipedia: Theora]]

Revision as of 13:47, 27 July 2022

File Format
Name Theora
Ontology
Extension(s) .ogg, .ogv
PRONOM fmt/945
Released ≤2008

Theora is a compressed video stream format. It is often used with the Ogg container format, resulting in a file format called Ogg Theora.

Contents

Identification

A Theora bitstream begins with the byte 0x80, followed by ASCII "theora". This signature will appear somewhere in most any kind of file containing Theora video.

A simple Ogg Theora file begins with "OggS", and has the Theora signature at offset 28. But the signature will appear later in an Ogg Skeleton (video+audio) file that uses Theora.

Specifications

See also Ogg#Specifications.

Software

Sample files

Links

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