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Page: MKVToolNix GUI
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About track UIDs, track numbers and track IDs Adding files vs. Appending files vs. adding as additional parts All tracks vanished after mkvpropedit, the header or chapter editors Appending & splitting FLAC audio tracks not supported Automation examples Batch muxing with the GUI Characters (e.g. Umlauts) aren't shown correctly Chinese not selectable as language Compiling on Debian 11 Bullseye Crash when adding attachments Creating byte identical files Cropping ignored DLLs not found Dark mode issues on Windows 11 Dark mode issues Debugging GUI startup problems Default and forced flags and default yes no in the GUI Delay not shown in the GUI Detecting track language from filename Dolby Vision support status Elements not showing up in output file Embedded fonts dont work FAQ FTP server Home Improving playback compatibility with players JSON output could not be parsed Language not available in MKVToolNix GUI Languages in Matroska and MKVToolNix Launching the command line programs with the Microsoft Store variant Location of settings, job queue, cache folder Long file & path names MKVToolNix GUI MKVToolNix costs money in stores Meta data fields like bitrate lost Multi display support broken in 67.0.0 Officially supported operating systems and versions Playback does not work VLC cannot seek mkvmerge v5.9.0 Release codenames Removing all files doesn't clear all inputs in the GUI Running the command line programs on macOS SRT subtitle file not recognized SUP and HD DVD subtitles Segment duration vs track duration Splitting imprecise Stretch or shrink audio tracks The job queue, statuses and their actions Track statistics tags Transforming mkvmerge's JSON output Troubleshooting TrueHD and AC 3 UTF 8 invalid sequence Understanding mkvinfo's output Use FIFOs stdin stdout Video does not play explorer locks up Virus in installer What happened to the forum What is mkvtoolnix.exe Wrong frame rate displayed mkvalidator ERR009 read doc type version higher than doc type version mkvalidator ERR201 Invalid CueRelativePosition for profile matroska v2 in CueTrackPositions mkvalidator WRN00C unknown element mkvalidator WRN0C0 First Block for video track in Cluster not a keyframe mkvalidator WRN0D0 void data mkvalidator WRN201 unknown element for read profile mkvextract wrong track mkvinfo mkvmerge track IDs wrong mkvinfo track summary mtxcfg file format and the jobQueue
5 MKVToolNix GUI
remuxer32 edited this page 2017-02-03 00:45:26 +01:00
Table of Contents

MKVToolNix GUI

What is the MKVToolNix GUI?

It is a complete re-write of the old GUI with a different widget toolkit (Qt instead of wxWidgets). There are several reasons for such a re-write, among them:

  • The old code base would have to be re-written considerably in order to support things like changing the properties of more than one track at a time or for implementing multi-threading.
  • The cross-platform support in Qt is simply way better than in wxWidgets (e.g. there are several cases in wxWidgets in which the toolkit doesn't abstract away the platform differences and my application code has to work against that with several #ifdef clauses).
  • The Qt toolkit is much more complete.
  • The Qt toolkit has the better tools available.
  • The Qt toolkit is simply far more pleasurable to code against.

Back when I started writing the old GUI (around 2003), I was looking at the cross-platform toolkits available at the time. I actually wanted to use Qt back then already but unfortunately Qt was only GPL'ed for use on Linux at the time; in order to use it on Windows, you had to get a commercial license. Fortunately this has been solved a long time ago and Qt is now completely Free Source/Open Source for use everywhere.

What happened to mkvmerge GUI?

mkvmerge GUI has been deprecated in 8.0.0 and finally removed in 8.4.0. It hadn't been in active development for more than a year before that. It has been superseded by the actively maintained and much more powerful MKVToolNix GUI.

Please switch to MKVToolNix GUI and give it a chance if you're still using the old mkvmerge GUI.

Hint for new users

The new GUI uses context menus (those that open when right-clicking somewhere). Try that in places like the file/track list or the attachment list.

Intro videos

I've created a couple of short videos showcasing different features and how to use them. If you would like such a video for a feature for which no video exists yet, please drop me a line.

Categories: misc

MKVToolNix FAQ and bug tracker