Type of software that splits an analog or digital signal into multiple signals
A demultiplexer for
digital mediafiles, 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 media streams from a (container) file and supply them to their respective audio, video, or subtitles decoders.[2]
libvlc (part of
VideoLAN project and
VLC Media Player) - demultiplexes many formats e.g. MPEG transport stream, MPEG program stream, MP4, MOV, 3GP, Ogg, OGM, ASF, WMV, WMA, MKV, FLV, etc.[10]
MP4Box, command line MP4 multiplexer/demultiplexer with GUIs like My MP4Box
Playback issues
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.