Demultiplexer (media file)

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A demultiplexer for digital media files, or media demultiplexer also called a file splitter by laymen or consumer software providers, is software that demultiplexes individual elementary streams of a media file, e.g., audio, video, or subtitles and sends them to their respective decoders for actual decoding.[1] Media demultiplexers are not decoders themselves, but are format container handlers that separate program streams from a file and supply them to their respective audio, video, or subtitles decoders.[2]

Notable file splitters[edit]

Playback issues[edit]

Playback difficulties (such as no playback, no audio, or no video) may result from several or legacy file splitters for a particular file format being installed on an operating system. This causes decoder-to-file-splitter mismatch resulting in playback failure on media players.

See also[edit]


  1. ^ – Demux
  2. ^ – Guides - Introduction to Haali Media Splitter
  3. ^ Windows Media Developer Center - AVI Splitter Filter
  4. ^ Windows Media Developer Center - MPEG-2 Splitter
  5. ^ Windows Media Developer Center - MPEG-2 Demultiplexer
  6. ^ Haali Media Splitter
  7. ^ - FLV Splitter
  8. ^ "lavfilters - Open-Source DirectShow Media Splitter and Decoders". Retrieved 2013-01-05.
  9. ^ FFmpeg General Documentation - File Formats, Retrieved 2009-09-02
  10. ^ VideoLAN Project VLC playback Features, Retrieved 2009-09-02
  11. ^ Directshow Filters for Ogg Vorbis, Speex, Theora and FLAC, Retrieved 2009-09-02