MKVToolNix v71.0.0 “Altitude”

Version

v71.0.0

Release Date

2022-10-08

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# Version 71.0.0 "Altitude" 2022-10-08

## New features and enhancements

* mkvmerge, MKVToolNix GUI's multiplexer: added support for the Emphasis audio
  track header element via the `--audio-emphasis` option. It is also read from
  Matroska files.
* mkvmerge: the options `--list-stereo-modes` and `--list-audio-emphasis` have
  been added to list all support numerical & textual values for the
  `--stereo-mode` & `--audio-emphasis` options.
* mkvpropedit, MKVToolNix GUI's header editor: added support for the Emphasis
  audio track header element via the `emphasis` property.
* MKVToolNix GUI: multiplexer: when the track properties are
  configured to be displayed in a tab widget below the files & tracks
  in the "Input" tab, the "Color information" tab will be laid out in
  two columns. This reduces the minimum height the whole tab widget
  requires. Implements #3401.
* MKVToolNix GUI: greatly sped up closing the preferences dialog by only
  re-running certain initialization functions when their corresponding
  settings have changed. Also fixes issues such as #3406.
* mkvinfo, MKVToolNix GUI's info tool: added support for the following new
  elements from Matroska v5: Emphasis audio track header element; Chapter Skip
  Type; Edition Display; Edition String; Edition Language IETF.
* mkvmerge, mkvpropedit: added support for the following new chapter elements
  from Matroska v5: Chapter Skip Type; Edition Display; Edition String;
  Edition Language IETF. The GUI's chapter editor will receive support for
  them in the next release.

## Bug fixes

* mkvmerge: Ogg/OGM reader: mkvmerge will now correctly skip tracks of
  unsupported types as well as tracks for which all track header pages
  haven't been found. Fixes #3394.

## Build system changes

* libEBML 1.4.4 & libMatroska 1.7.1 are now required.
* The bundled libEBML & libMatroska libraries were updated to v1.4.4 & v1.7.1
  respectively.
* The bundled `fmt` library was updated to v9.1.0.
* The bundled `nlohmann-json` library was updated to v3.11.2.