Avidemux is a cross-platform, Open Source video editor designed for simple cutting, filtering and encoding tasks.

The Avidemux Wiki provides lots of information including tutorials and usage guides.


mux, muxing, multiplex, Multiplexer

  • Short answer: Multiplex – mix streams together (usually video with audio)
  • Long answer: Multiplexer

demux, demuxing, imux, demultiplex, Inverse Multiplexer

  • Short answer: Demultiplex – separate into individual streams (usually video and audio)
  • Long answer: Inverse multiplexer

I‑frames, P‑frames, B‑frames

An I‑frame are fully-specified pictures. The following frames (P‑frames and B‑frames) hold only part of the image information (→ the difference compared to the I-frame), so they need less space to store than an I‑frame, and thus improve video compression rates. See “Video compression picture types” for details.



10.04 Lucid and above

Simply install the following package(s):

There are some additional packages, providing special functionality:

  • avidemux-cli (multiverse) – optional command line tools, e.g. useful for shell scripts, converting tasks etc..

After installation, you can start the program by clicking “Applications→Sound & Video→Avidemux (GTK+)”. Or open a terminal and start it via avidemux.


XP and above

Simply download the Windows installer and execute it with administrator privileges.

See also

  • Audacity – Open Source cross-platform sound editor and recorder.
  • pitivi – Another Open Source video editor.
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