AviDemux is a video editor and encoder which can edit, encode, requantize MPEG and AVI, including DivX. It is almost like VirtualDub, but can also encode to VCD/SVCD/DVD mpg.

Most common codecs are supported (M-JPEG, MPEG, DivX, Xvid, huffyuv, WMA, etc.) thanks to libavcodec and libmpeg2. Video can be edited, cut, appended, filtered (resize/crop/denoise), and re-encoded to either AVI (DivX/Xvid) or MPEG 1/2.

Changes in AviDemux 2.4.4 :

- Fixed crash when opening some MOV files (regression introduced in 2.4.3)
- Improved support for H.264 in MPEG-TS and M2TS containers
- Improved support for H.264 in MP4 container (including constant frame rate fix)
- Fixed bug where muxers could drop the first few B-frames (most containers were affected)
- Fixed FAAC support so bitrate is correctly honoured
- The same settings are now used for the first and second pass of an x264 encode
- Improved JPEG file support
- Improved PNG decoding (now uses libavcodec rather than a custom wrapper around libpng)
- Improved BMP/DIB decoding (now uses libavcodec rather than using own decoder)
- Improved colourspace handling for raw video, bitmaps and DIBs
- Fixed Previous Black Frame functionality
- Qt interface has been significantly upgraded and now fully functional (compared with its GTK counterpart)
- Saving of video is now prevented if the A marker is greater than the B marker
- Improvements made to ECMAscript including a new GetFilePath() function for the DirectorySearch class and fixes to the exec() function
- Add support for AAC audio to the command line interface
- Qt interface is now the default interface for MS Windows
- x264 and Xvid stat files with Unicode characters are now handled on MS Windows
- The application log file is no longer buffered on MS Windows to ensure sequential logging
- Added support for ppc64 to the CMake build scripts
- Updated the following translations: Catalan, Czech, French, Italian, Russian, Spanish