MKVToolnix

MKVToolnix is a set of tools to create, alter and inspect Matroska files under Linux, other Unices and Windows. They do for Matroska what the OGMtools do for the OGM format and then some.

With these tools one can get information about (mkvinfo) Matroska files, extract tracks/data from (mkvextract) Matroska files and create (mkvmerge) Matroska files from other media files. Matroska is a new multimedia file format aiming to become THE new container format for the future.

• Release Date: Jan 3, 2020
• Download(s):
  mkvtoolnix-32-bit-42.0.0-setup.exe
  mkvtoolnix-32-bit-42.0.0.7z
  mkvtoolnix-64-bit-42.0.0-setup.exe
  mkvtoolnix-64-bit-42.0.0.7z
  MKVToolNix-42.0.0.dmg
  MKVToolNix_GUI-42.0.0-x86_64.AppImage
• # Version 42.0.0 "Overtime" 2020-01-02
  
  
  ## New features and enhancements
  
  
  * mkvmerge: added an option for creating byte-identical files:
    `--deterministic <seed>`. Part of the implementation of #2698.
  * mkvmerge: Matroska reader: mkvmerge will remove the `icpf` atom headers if
    they're present in frames read from Matroska files. Implements #2692.
  * mkvmerge: MP4 reader: ALAC tracks: the number of channels, sampling
    frequency and bit depth are now taken from the bitstream in order to fix
    bogus values on the container level. Implements #2714.
  * mkvpropedit: when changing track UIDs the referring elements in existing
    chapters & tags will be updated automatically, too. Part of the
    implementation of #2700.
  * mkvinfo: when the option `-p`/`--hex-positions` is used, element positions
    will be output regardless of the verbosity level. Part of the implementation
    of #2713.
  * mkvinfo: added the option `-P`/`--positions` for showing the position of
    each element in decimal regardless of the verbosity level used. Part of the
    implementation of #2713.
  * mkvinfo: added the option `-o`/`--continue` for continuing processing when
    the first cluster is encountered regardless of the verbosity level
    used. Part of the implementation of #2713.
  * mkvinfo: added the option `-a`/`--all` for outputting all sub-elements (even
    cues & seek head entries) and not stopping at the first cluster regardless
    of the verbosity level used. Part of the implementation of #2713.
  * MKVToolNix GUI: multiplexer: added an option in the preferences for
    disabling adding cover images from Blu-ray discs. Implements #2693.
  * MKVToolNix GUI: multiplexer: added mkvmerge's new `--deterministic` option
    in the "additional command-line options" dialog. Part of the implementation
    of #2698.
  * MKVToolNix GUI: header editor:: when changing track UIDs the referring
    elements in existing chapters & tags will be updated automatically,
    too. Part of the implementation of #2700.
  
  
  ## Bug fixes
  
  
  * mkvmerge: HEVC ES parser: fixed a bug in the slice parser calculating the
    size of a field which in turn could have led to the slice's type being read
    wrong. Patch by Torsten Hauska. Fixes #2710.
  * mkvmerge: Matroska reader: fixed a segmentation fault when trying to read a
    file that uses header removal compression but no removed bytes are present
    in the track headers. Fixes #2687.
  * mkvmerge: MPEG elementary stream parser: fixed an invalid memory access and
    use of uninitialized memory that could happen under certain
    circumstances. Fixes #2690.
  * mkvmerge: RealMedia reader: fixed a division by zero when all audio
    timestamps were zero. Fixes #2689.
  * mkvmerge: RealMedia reader: fixed an invalid memory access in the video
    frame assembly code triggered by invalid data in the file. Fixes #2691.
  
  
  ## Build system changes
  
  
  * `std::optional` (C++17 feature) is now used instead of `boost::optional`.
  * `std::regex` is now used instead of `boost::regex`.
  
  
  ## Other changes
  
  
  * New man page translations into French, Italian, Russian and Chinese
    Traditional have been added.