Theora
From Just Solve the File Format Problem
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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/ | + | * https://telparia.com/fileFormatSamples/video/oggTheoraVideo/ |
== Links == | == Links == | ||
* [https://www.theora.org/ theora.org] | * [https://www.theora.org/ theora.org] | ||
* [[Wikipedia: Theora]] | * [[Wikipedia: Theora]] | ||
Revision as of 14:24, 27 July 2022
Theora is a compressed video stream format. It is often used with the Ogg container format, resulting in a file format called Ogg Theora.
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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.
