---
name: "ogmdemux"
section: "1"
platform: "linux"
package: "ogmtools"
version: "1.5-12"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/ogmdemux"
---

# ogmdemux(1)

Extract streams from OGG/OGM files into separate files

## NAME

ogmdemux - Extract streams from OGG/OGM files into separate files

## SYNOPSIS

**ogmdemux** \[*options*\] *inname*

## DESCRIPTION

This program extracts all or only some streams from an OGM and writes them to separate files.

- *inname*

  Use '*inname*' as the source.

- **-o**, **--output** *out*

  Use '*out*' as the base for destination file names. '-v1', '-v2', '-a1', '-t1'... will be appended to this name. Default: use '*inname*'.

- **-a**, **--astream** *n*

  Extract specified audio stream. Can be used more than once. Default: extract all streams.

- **-d**, **--vstream** *n*

  Extract specified video stream. Can be used more than once. Default: extract all streams.

- **-t**, **--tstream** *n*

  Extract specified text stream. Can be used more than once. Default: extract all streams.

- **-na**, **--noaudio**

  Don't extract any audio streams.

- **-nv**, **--novideo**

  Don't extract any video streams.

- **-nt**, **--notext**

  Don't extract any text streams. Default: extract all streams.

- **-r**, **--raw**

  Extract the raw streams only. Default: extract to useful formats (AVI, WAV, OGG, SRT...).

- **-v**, **--verbose**

  Increase verbosity.

- **-h**, **--help**

  Show this help.

- **-V**, **--version**

  Show version number.

## NOTES

What works:

- \*

  Extraction of the following formats is fully supported including writing the stream contents to useful container formats:\
  \
     video  -\> AVI\
  \
     Vorbis -\> OGG/Vorbis\
  \
     PCM    -\> WAV\
  \
     text   -\> text files (SRT subtitle format)

- \*

  All other audio streams (MP3, AC3) are just copied 1:1 into output files. MP3 and AC3 files should be usable. Others might not.

What not works:

- \*

  Headers created by older OggDS (DirectShow) filter versions are not supported (and probably never will be).

## AUTHOR

*ogmdemux* was written by Moritz Bunkus \<moritz@bunkus.org\>.

## SEE ALSO

[**ogmmerge**(1)](/ogmmerge/1.md), [**ogmsplit**(1)](/ogmsplit/1.md), [**ogminfo**(1)](/ogminfo/1.md), [**ogmcat**(1)](/ogmcat/1.md), [**dvdxchap**(1)](/dvdxchap/1.md)

## WWW

The newest version can always be found at \<http://www.bunkus.org/videotools/ogmtools/\> ⟨http://www.bunkus.org/videotools/ogmtools/⟩