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OGM

A hack on Ogg that allowed embedding of video from the Microsoft DirectShow framework into an Ogg-based wrapper.

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. OGM was initially supported only by closed source Windows-only tools, but the codebase was subsequently opened. Later, video (and subtitle) support was formally specified for Ogg but in a manner incompatible with OGM. Independently, the Matroska container format reached maturity and provided an alternative for people interested in combining Vorbis audio and arbitrary video codecs. As a result, OGM is no longer supported or developed and is formally discouraged by Xiph.org. Today, video in Ogg is found with the .ogv file extension, which is formally specified and officially supported. Software and codecs that support .ogm files are available without charge.

Key Terms

creation
definition
embedding video
hack ogg
lack formal video support
microsoft directshow framework
ogg
ogm
ogm file format
usage

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Acronymn

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Synonymns

OGM
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Sources & Credits

Last modified on April 29 2020
Content adapted from Wikipedia
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