MKVToolNix v45.0.0 released

Hello dear people,

I sincerely hope you’re all healthy or at least on the way there. I’m fine, and having some more time on my hands I was able to get more done wrt. MKVToolNix. So this release is a bit bigger than the previous ones.

Nothing’s changed for package managers.

You can download the source code or one of the binaries. The Windows and macOS binaries as well as the Linux AppImage are available already. The other Linux binaries are stil being built and will be available over the course of the next couple of hours.

Here are the NEWS since the previous release:

New features and enhancements

  • mkvmerge: mkvmerge has never supported appending & splitting FLAC audio
    tracks. mkvmerge will now emit error messages when the user attempts either
    instead of continuing and creating invalid FLAC tracks.
  • MKVToolNix GUI: added an option in the preferences to turn on eliding text
    on tab headers. If enabled, tab names will be shortened so that all tab
    headers fit into the window’s width. Implements #2768.
  • MKVToolNix GUI: added an option in the preferences to disable all tooltips.
  • MKVToolNix GUI: Windows: debug output sent via Qt’s to Windows’ debugging
    facility will use a more verbose message format including the application
    name, making it easier to filter for in SysInternal’s "Debug View" utility.
  • MKVToolNix GUI: multiplexer: if the file identification fails due to a JSON
    parser error, the output generated by mkvmerge will be output via Qt’s
    debugging facility (viewable with SysInternal’s "Debug View" utility on
    Windows; on other systems it’s output on STDERR) allowing insight into
    what’s gone wrong.
  • MKVToolNix GUI: multiplexer: if an error occurs during file identification,
    the name of the processed file will be mentioned in the error message.
  • MKVToolNix GUI: multiplexer: if an error occurs during identification of
    multiple files, the GUI will ask the user whether to continue or abort the
    identification process. Implements #2778.
  • MKVToolNix GUI: job queue: added an option in the preferences for removing
    completed jobs when exiting the program depending on their status.
    Implements #2769.

Bug fixes

  • mkvmerge: H.265/HEVC packetizer: fixed changing the NALU size length, it was
    using the wrong offset into the hevcC structure.
  • mkvmerge: MP4 reader: fixed calculating the duration of video tracks that
    only contain a single frame. Fixes #2747.
  • mkvmerge: MP4 reader: if there’s no frame offset table (ctts atom) present
    for H.265/HEVC video tracks, mkvmerge will determine the timestamp order
    itself instead of relying on the timestamps in the MP4 being in the
    presentation order required by Matroska. Fixes #2777.
  • mkvpropedit: Windows: mkvpropedit wasn’t caching when reading the file to
    modify, slowing down operations such as adding track statistics tags
    considerably. Fixes #2761.
  • MKVToolNix GUI: multiplexer: when using the title as part of the destination
    file name (both automatically as well as using the "copy title to
    destination file name" function) all characters that aren’t valid in a file
    name are replaced by hyphens.
  • MKVToolNix GUI: multiplexer: the "copy title to destination file name"
    function was broken when the "make file name unique" option in the
    preferences was disabled. In that case the file base name was removed
    regardless of what the title was set to at the time.
  • MKVToolNix GUI: multiplexer: when using the "show command line" menu option
    on Windows the path to the mkvmerge executable was shown with forward
    slashes instead of backslashes. This is a purely cosmetic fix as Windows
    supports both forward and backward slashes.
  • MKVToolNix GUI: multiplexer: when adding Blu-ray playlists the GUI used to
    only look for the English version of the disc library information (title &
    cover images). Now the GUI will present all disc library entries in the
    "select playlist to add" dialog & let the user chose which one to use (if
    any). Fixes #2765.
  • MKVToolNix GUI: multiplexer, info tool: fixed the "warn before overwriting"
    check wrt. jobs creating the same file. Fixes #2758.

So try to have some fun, especially in these trying times.

4 thoughts on “MKVToolNix v45.0.0 released

  1. A Verbeek

    Thank you for your work on MKVToolNix. I use the program very often. I don’t want to disturb you on this place with a problem that I have with MKNToolNix. Can you send me an email address that I can send my question to?

    Thank you in advance, and have a good (last bit of the) evening.

    Kind regards,
    A Verbeek

  2. Benny Nielsen

    Hello there. I have bought/donated MKVToolNix some time back and have been a very satisfied user. I still am, don’t get me wrong, but a while ago, I got a new girlfriend that doesn’t speak too good english and I have started subtitling the many movies I have with Danish subs as well. But I noticed that the option to label my Danish subs “Danish” from the dropdown meny has disappeared. If I donated once more, would it be possible to get it back in a future update/release?? I looks so much better it says “Danish” than “und” for undetermined. I mean, after all, Sinhalese, Hindi and Kmehr is ther, so why did Danish disappear? I know it was there, but I have always subbed english speaking films with english as Danish translations are sometimes ridiculous. Please consider it, and I will donate once more at the beginning of next month. After all, it HAS been a while since I donated (2012-13) and I have understanding and respect for all you hard work. Just wich I could batch convert, adding a movie and a subtitle to the cue and add bunches. Or can I??
    Benny in Denmark

    1. mosu Post author

      You definitely don’t have to donate any money to get Danish back :) You can configure which languages appear in the drop-down boxes in the preferences → “GUI” → “Often used selections”.

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