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mkvtoolnix-tools-80.0-1.1 RPM for s390x

From OpenSuSE Ports Tumbleweed for s390x

Name: mkvtoolnix-tools Distribution: openSUSE:Factory:zSystems
Version: 80.0 Vendor: openSUSE
Release: 1.1 Build date: Tue Oct 31 07:10:27 2023
Group: Unspecified Build host: s390zl27
Size: 19725072 Source RPM: mkvtoolnix-80.0-1.1.src.rpm
Packager: https://bugs.opensuse.org
Url: http://bunkus.org/videotools/mkvtoolnix/
Summary: Additional command line tools for mkv files
This package contains extra command line tools for mkv diagnostic.

Provides

Requires

License

GPL-2.0-or-later

Changelog

* Mon Oct 30 2023 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 80.0
    New features and enhancements:
    * MKVToolNix GUI: if the system's locale uses one of the Han
      scripts, the GUI will force Arabic numerals to be used in
      spin boxes. This prevents Suzhou numerals from being used.
    Bug fixes:
    * build system: fixed detection of Qt6 if `clang` is used for
      compilation on Linux. In that case Qt's `qmake` added a
      `gcc`-specific option that `clang` doesn't understand,
      `-mno-direct-extern-access`. `configure` will now pass the
      parameter `-spec linux-clang` to `qmake` so that it uses the
      correct compiler flags.
    * build system: fixed the use of `mktemp` to be more portable.
    * mkvmerge: if a video aspect ratio was given with
      `--aspect-ratio-factor`, the code would apply a second
      factor based on the pixel resolution, resulting in much too
      large values for the `DisplayWidth` element. For example,
      with a pixel resolution of 720x520 & an aspect ratio factor
      of 1/1 the result should be 720x520, but instead it was
      900x520. Up until release 76.0 this has only happened when a
      track order was given (which unfortunately includes all
      invocations with MKVToolNix GUI as it always includes the
      track order). Starting with release 77.0 this has always
      happened due to the automatic sorting of tracks implicitly
      creating a track order, even if none was given.
* Tue Aug 22 2023 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 79.0
    New features and enhancements:
    * mkvmerge: AV1: added support for reading Dolby Vision from
      AV1 IVF & OBU streams. Patches by Quietvoid.
    * mkvmerge: MPEG TS reader: added support for colors in
      teletext subtitles.
    * MKVToolNix GUI: multiplexer: when adding files the GUI can
      automatically enable the "forced display" flag for subtitle
      tracks if the file name contains the word "forced" delimited
      by certain characters (configurable). This feature is turned
      on by default.
    * MKVToolNix GUI: multiplexer: added the option
      `--stop-after-video-ends` to the dialog for additional
      command line options.
    * MKVToolNix GUI: multiplexer: when adding Blu-ray playlists
      the dialog allowing the user to select the playlist to add
      will now show audio & video track properties as well (pixel
      dimensions for video; sampling frequency, channels for audio).
    * MKVToolNix GUI: header editor: in order to reduce confusion
      with users non that versed in Matroska elements, the naming
      of the two "language" track properties has been changed:
      the old element is now titled "Language (obsolete)" & the
      current, IETF BCP 47 based one is simply called "Language".
    * MKVToolNix GUI: preferences: you can now use the "delete"
      key to remove entries from simple list widgets for strings
      (e.g. the list of recently used destination directories).
    Bug fixes:
    * mkvmerge: DTS reader: if a DTS stream doesn't start with a
      DTS core but a sub-stream element (EXSS), the reader will
      now look for a core. If found, it'll start processing from
      there instead of from the start. This fixes the timestamp
      calculation if the sampling frequency in the core & in the
      extensions are different.
    * MKVToolNix GUI: multiplexer: the "emphasis" and
      "stereoscopy" combo-boxes now have a much smaller minimum
      width, allowing to make the whole "properties" pane much
      smaller again.
* Mon Jul 03 2023 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 78.0
    New features and enhancements:
    * MKVToolNix GUI: header editor: for files that only contain
      legacy track language elements but no IETF language elements
      the header editor will now derive the IETF language elements
      from the legacy elements.
    Bug fixes:
    * all: Linux: if initializing the locale system based on the
      system's settings fails, e.g. if environment variables such
      as `LC_ALL` have been set to `fr_FR.UTF-8` but the locale
      for `fr_FR.UTF-8` hasn't been built, MKVToolNix
      will try to fall back to `en_US.UTF-8` first & `C.UTF-8`
      second. If neither of the three succeeds, an error message
      will be shown, and the program will abort. This fixes the
      programs not catching an exception from the
      `boost::filesystem` library which doesn't cope with
      mis-configured locale systems well.
    * mkvmerge: sorting tracks by type did not work properly when
      some tracks weren't copied.
    * mkvmerge: track numbers in the destination file were
      assigned out-of-order when the track order in the source
      files differs from the one in the destination file. Now
      they're assigned sequentially in the order the tracks
      appear in the destination file again.
    * MKVToolNix GUI: under certain circumstances the GUI would
      try to display error messages from a secondary thread, which
      isn't allowed in Qt, causing to program to either hang or
      outright crash.
    * MKVToolNix GUI: the GUI will check for several potential
      installation issues wrt. to having write access to certain
      directories (system's temporary directory, MKVToolNix's file
      identification cache directory and others) & display proper
      error messages if not.
    * MKVToolNix GUI: header editor: fixed the application
      crashing whenever you change a property below the "segment
      information" node. This bug was introduced in v77.
    * MKVToolNix GUI: header editor: when reading files that only
      contain legacy track language elements but no IETF track
      language elements, the header editor was showing all tracks
      as having "English" as the language. This bug was introduced
      in v77.
    * MKVToolNix GUI: header editor: when a legacy track language
      element contains a country code (e.g. `fr-CA`), the header
      editor was wrongfully using `und` = "undetermined" as the
      language for that element. Now it'll use the language from
      the language/country pair, which would be `fr` in the earlier
      example.
    * MKVToolNix GUI: header editor: the keyboard shortcuts from
      the "modify selected track" sub-menu didn't work right after
      opening a file. They only started working after opening the
      "header editor" menu.
    Build system changes:
    * The compilation database (`compile_commands.json`) is now
      always built. The variable `BUILD_COMPILATION_DATABASE` is
      not evaluated anymore.
* Sun Jun 04 2023 Luigi Baldoni <aloisio@gmx.com>
  - Update to  version 77.0
    New features and enhancements:
    * mkvmerge: tracks in the destination file will now be sorted
      by their type automatically unless the track order is
      specified with the `--track-order` option. The order is as
      follows: video tracks first followed by audio & subtitle
      tracks with other rarely used types of tracks last. Tracks
      of the same type will be sorted in the same order as their
      source files occur in the command-line arguments. Note that
      this doesn't affect file identification.
    * MKVToolNix GUI: multiplexer: the default list colors used
      for distinguishing source files does not include the darkest
      tier anymore (the ones where one or two components are set
      to the value 0x3f) as they're hard to distinguish from each
      other. Only affects new installations, or when the user
      presses the "reset to default colors" button.
    * MKVToolNix GUI: multiplexer: the GUI will now check the
      state of the 'track enabled' flag of all video, audio &
      subtitle tracks when starting to multiplex or adding a job to
      the job queue. If there's no track with its flag turned on
      for a type, the GUI will turn on the flag for the first track
      of the type. This behavior can be turned off in the
      preferences.
    * MKVToolNix GUI: header editor: the columns in the
      tracks/attachments view and the values on the "track type"
      page will now be updated each time a corresponding property
      is changed (e.g. when a track's name is changed) instead of
      showing what's in the file on disk.
    * MKVToolNix GUI: Windows: a new settings in the preferences
      lets the user chose whether to use the light or the dark
      color palette, or to follow the system settings.
    Bug fixes:
    * Fixed compilation with fmt v10.0.0.
    * mkvmerge: fixed several instances of wrong format strings
      for `fmt::format` used in debug messages.
    * mkvmerge: AV1 packetizer: the packetizer did not honor the
      aspect ratio (factor) given on the command-line via the
      `--aspect-ratio` or `--aspect-ratio-factor` options.
    * mkvmerge: JSON identification: cropping parameters are
      reported again even if some of the four values are not
      present in the file or set to 0.
    * MKVToolNix GUI: the defunct "disable the dark mode" checkbox
      was removed from the preferences.
    * MKVToolNix GUI: language dialog: under certain conditions
      the controls for the individual components remained disabled
      when the dialog is opened even though editing of individual
      components is selected.
    * MKVToolNix GUI: language dialog: the controls for the
      individual components weren't re-initialized properly after
      opening the dialog for the second & all following times,
      potentially leaving previously selected/entered entries
      intact, primarily when editing multiple tracks at once.
    * MKVToolNix GUI: header editor: using the actions from the
      "modify selected track" context menu only worked if the user
      right-clicked on the first column in the view. They now work
      for clicks on any of the columns.
    * MKVToolNix GUI: header editor: some of the actions toggling
      specific flags from the "modify selected track" did not work
      correctly if the flag wasn't currently present in the file,
      especially if the underlying value has a default value in the
      Matroska specs.
    Build system changes:
    * The bundled `fmt` library was updated to v10.0.0.
    * MKVToolNix GUI now uses an external Qt resource file instead
      of compiling it into the executable. The resource file has
      reached a size at which the C++ compiler exhausts available
      virtual memory on some 32-bit architectures.
      The GUI will look for the file in the directory set with
      `configure`'s `--datadir` parameter on other systems
      (which usually means `/usr/share/mkvtoolnix`). The `install`
      build system commands installs it into that folder.
* Sun Apr 30 2023 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 76.0
    Important notes:
    * mkvmerge: removed the option `--blockadd`. Removing block
      additional data is not possible anymore, as it is often
      required for proper decoding.
    New features and enhancements:
    * mkvmerge: JSON file identification: added a child element
      called `num_index_entries` to the `properties` track element
      containing the number of index entries found for a track.
      Currently only implemented for Matroska files where it
      contains the number of cue points.
    * mkvmerge: the maximum block addition ID track header value
      is now calculated automatically from both the existing
      mappings & the actually used block additions in the block
      groups.
    * mkvmerge: Matroska reader: when reading WebM files that use
      block additions with ID 4 (HDR for VP9) an appropriate block
      addition mapping will be created automatically.
    * mkvmerge: MP4 reader: the title/movie name meta data
      (content of the `udta.meta.ilst.©nam` atom) will now be
      copied over as the segment title track header attribute.
    * mkvmerge: MP4 reader: the comment & encoder meta data
      (content of the `udta.meta.ilst.©cmt` & `….©too` atoms) will
      now be copied over as global tags `COMMENT` & `ENCODER`
      respectively.
    * mkvmerge, MKVToolNix GUI's multiplexer: added an option to
      stop processing after the primary video track ends called
      `--stop-after-video-ends`. This discards any remaining
      packets of other tracks.
    * MKVToolNix GUI: multiplexer: automatically setting the
      destination file name: added an option in the preferences
      for using the first source file's directory name instead of
      its file name as the basis for the destination
      file name.
    * MKVToolNix GUI: multiplexer: double-clicking on certain
      columns in the "tracks" view will now toggle them directly
      (columns "Default track" & "Forced track") or activate the
      corresponding control (columns "Language", "Name" &
      "Delay"). Double-clicks on other columns will do what
      they've done before, too: toggling the "Copy item" state.
    * MKVToolNix GUI: the dialog for editing language tags is now
      created only the first time the user wants to edit a
      language tag & cached afterwards instead of creating a new
      instance each time. This makes subsequent uses instant.
    Bug fixes:
    * mkvmerge: mkvmerge will now only try to probe for VobSubs if
      the name of the file to identify ends in either `.idx` or
      `.sub`, preventing mis-identification of other file types if
      VobSubs with the same base name exist in the same directory.
    * mkvmerge: AC-3: mkvmerge will now skip certain types of
      garbage data (16 bytes starting with 0x01 0x10) that can
      occur before each sync frame, fixing the file not being
      identified as AC-3.
    * mkvmerge: Matroska reader: when reading files that use block
      additions with IDs other than 1 (e.g. 4 for HDR for VP9) the
      IDs will now be kept & written to the output file. Before no
      ID would be written, effectively using 1 as that's the
      default value for the corresponding element.
    * mkvmerge: mkvmerge will no longer write block addition
      mappings or the max block addition ID track header elements
      when creating a WebM file as those elements aren't supported
      there.
    * mkvpropedit: fixed replacing chapters & tags in files that
      don't contain tracks.
* Sun Mar 26 2023 Luigi Baldoni <aloisio@gmx.com>:
  - Update to version 75.0.0
    New features and enhancements:
    * mkvmerge: MP4 reader: mkvmerge will now read Timed Text
      (FourCC `tx3g`) subtitle tracks & convert them on the fly to
      Matroska's simple text subtitle format (`S_TEXT/UTF8`; text
      only, no styles).
    Bug fixes:
    * all: switched back to using `boost::filesystem` functions
      for creating directories instead of the ones introduced to
      work around bugs in `std::filesystem`. The latter didn't
      work correctly with UNC paths after the switch to
      `boost::filesystem::path` in v74.
    * mkvmerge: VobSub reader: mkvmerge will now probe the `.idx`
      file during VobSub identification even if the `.sub` file is
      passed as the source. Avoids mis-detection of the `.sub` as
      MPEG program streams.
    * MKVToolNix GUI: the GUI could abort with an exception on
      startup while looking for the `mkvmerge` or `mediainfo`
      executables due to inaccessible folders.
    * MKVToolNix GUI: preferences: when opening the preferences
      the first time the UI might pre-select the first entry in
      the list of interface languages if the operating system's
      language is not available for MKVToolNix. This might also
      happen on Linux if e.g. `en_GB` is set, even though `en_US`
      is available. Now English (`en_US`) will be selected instead.
    * MKVToolNix GUI: multiplexer: when adding files the GUI has
      special handling for chapter/tags/segment info files. This is
      done by comparing their content to certain patterns. This
      recognition could wrongfully be  triggered if any such file
      was embedded in another file verbatim, e.g. with a chapter
      XML file attachment in a Matroska file. When trying to add
      that Matroska file, the GUI would treat it as a chapter file
      instead of a regular one. This content-based detection was
      fixed.
    Other changes:
    * mkvpropedit, GUI's header editor: removed support for the
      deprecated "minimum cache" & "maximum cache" track header
      elements.
* Thu Mar 16 2023 Max Lin <mlin@suse.com>
  - Requires qt6-multimedia in Leap 15.5
* Sun Feb 12 2023 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 74.0.0
    New features and enhancements:
    * mkvmerge: SRT handling: added a hack called `--engage
      keep_whitespaces_in_text_subtitles` which disables stripping
      whitespaces from the start & end of each line of SRT entries
      during muxing.
    Bug fixes:
    * all: Windows: UNC paths of type `\\?\C:\…` are supported
      again by switching back to Boost's file system library
      instead of using C++17's file system library.
    * mkvmerge: AVC/H.264 & HEVC/H.265 packetizers: when appending
      tracks the pixel dimensions will be checked & muxing will be
      aborted if they don't match.
    * mkvmerge: file type detection: file types that can be
      detected unambiguously by their content (e.g. Matroska, MP4,
      WAV…) will now preferred in the detection order over file
      types based on their extension. Prevents certain cases of
      mis-detection, e.g. DTS in WAV but with a file name
      extension of `.dts` being detected as the wrong type of DTS.
    * mkvmerge: SRT handling: whitespaces will now be stripped
      from the start & the end of each line of each entry, not
      just from the end of the last line.
    * mkvextract: SRT extraction: whitespaces will not be stripped
      from the start & end of the whole entry anymore.
    * MKVToolNix GUI: multiplexer: when adding multiple files that
      include certain file types (chapters, segment info and tag
      files) and when the choice where to add them is "all files
      to a single new tab", these certain file types will now be
      added in the newly added tab as well instead of the current
      tab that had already been open.
    * build system: fixed compatibility with Ruby 3.2.0 by using
      `FileTest.exist?` instead of `File.exists?`, `Dir.exists?` &
      `FileTest.exists?` which were removed in that release.
    Build system changes:
    * MKVToolNix is now using & requiring Boost's "file system"
      and "system" libraries again instead of C++17's file system
      library. This is due to gcc's library not supporting UNC
      paths of types `\\?\C:\dir\file.ext`.
* Tue Jan 03 2023 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 73.0.0
    New features and enhancements:
    * mkvmerge: greatly enhanced the speed of Base64 decoding
      which is used used e.g. when reading pictures embedded in
      Ogg or FLAC files or for binary data inside XML chapter &
      tag files. Even small blocks of data could take unreasonably
      long.
    * mkvmerge: added support for reading HEVC/H.265 video from FLV
      containers.
    Bug fixes:
    * mkvmerge: splitting: fixed a typo in the string output in
      GUI mode regarding the timestamps before which splitting was
      done.
    * MKVToolNix GUI: job output: after having run multiple jobs
      the "Clear output" functionality only reset the visible
      parts. However, using the "save output" function would also
      save the output generated before the user used "clear
      output". Now only the output after the last use of "clear
      output" is saved.
    * build system: when probing for the FLAC library the Ogg
      libraries will be linked with the compiled test program as
      well. This fixes detection if the `pkg-config` settings for
      FLAC don't list Ogg & the linker doesn't find the library
      automatically.
* Sun Nov 13 2022 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 72.0.0
    New features and enhancements:
    * mkvmerge: AV1 parser: the variable-width OBU size field will
      be re-written with minimal length if it's encoded longer
      than necessary.
    * mkvmerge: when splitting is active the program will output
      the timestamps actually used for making the decision when to
      split. If GUI mode is active, a specially formatted line
      `#GUI#splitting_before_timestamp <timestamp>` is output as
      well. Lines prefixed with`#GUI#` are suitable for machine
      parsing, won't be translated and are guaranteed not to change
      in format.
    * MKVToolNix GUI: multiplexer: when dragging & dropping
      directories to the "attachments" tab, the files contained in
      those directories will be attached.
    * MKVToolNix GUI: info tool: added information about the file
      (directory, size, modification timestamp) at the top of each
      tab.
    Bug fixes:
    * mkvmerge: AV1 parser: fixed the parser completely aborting
      when parsing the OBU size field fails due to there not being
      enough data to parse. Instead the parser will remember the
      last known-good position & restart from there after more
      data is available.
    * mkvmerge: HDMV PGS subtitles: reverted the change that
      implemented a heuristic for detecting bogus timestamps &
      attempting to fix them. This was done to fix #3268.
      Unfortunately this affected valid subtitle files with
      intentional huge gaps in timestamps, e.g. forced subtitle
      tracks. The heuristic has simply been removed.
    * mkvmerge: Matroska reader: fixed reading files with EBML
      Void elements before the Matroska Segment element.
    * mkvmerge: fixed reversed attachment selection:
      `--attachments !4` would not copy any attachment instead of
      all attachments but the one with ID 4.
    * mkvextract: IETF BCP 47/RFC 5646 language tags: mkvextract
      will now use & prefer IETF BCP 47 track language elements if
      they're present. Only affects the VobSub & USF subtitle
      extraction.
    * mkvpropedit, MKVToolNix GUI's chapter & header editors:
      updated the list of deprecated Matroska elements. The
      applications will no longer try to write those elements,
      even if they're found in the file to be modified. The
      programs will no longer abort with error messages such as
      `assertion "false" failed`.
    * mkvpropedit, MKVToolNix GUI's chapter & header editors: when
      the Matroska version numbers stored in the EBML Head element
      are updated, the updated EBML Head element might be smaller
      than the existing one. In that case the programs used to
      shrink the EBML Head & write a small EBML Void element
      between the updated EBML Head & the following element,
      usually a Matroska Segment element. This isn't widely
      supported by programs including MKVToolNix itself, causing
      them to declare such files as invalid. The programs will
      now create the EBML Void element inside the EBML Head element,
      making them a level 1 element instead of a level 0 element.
    * mkvpropedit, MKVToolNix GUI's chapter & header editors:
      often the programs have to relocate the Master elements in
      which the modifications were done. In that case the Seek Head
      elements must also be updated to reflect to the Master
      elements' new positions. If a file contained a Seek Head
      element at the start already and if that Seek Head was too
      small to contain the updated positions, the programs would
      end up in an endless loop trying to write data to the end,
      creating ever-growing files. This is now handled properly by
      voiding this too-small Seek Head & finding a proper space
      for a new one instead.
    * MKVToolNix GUI: header editor: fixed pixelated icons on
      higher display scaling values.
    Build system changes:
    * bug fix: libFLAC detection is now done via `pkg-config`, and
      the corresponding compiler flags are honored. Fixes static
      compilation with newer versions of libFLAC with MXE where a
      compiler definition is required to signal that it libFLAC
      wasn't built as a DLL.
* Sun Oct 09 2022 C J <c.j@tuta.io>
  - Update to version 71.1.0
    Bug fixes:
    * Chapters DTD: added the new edition & chapter elements from
      Matroska v5.
    * Chapters DTD: fixed EditionUID being mandatory. mkvmerge can
      auto-generate it if it's missing from the XML file.
    * Chapters DTD: fixed the `example-chapters-1.xml` not validating
      against the DTD.
    * Chapters DTD: corrected the old name `EditionManaged` to
      `EditionFlagOrdered`.
    * Chapters DTD: fixed `ChapLanguageIETF` missing its element
      declaration & `ChapterLanguage` being required.
    * XML DTDs: fixed elements representing binary data not allowing the `format`
      attribute.
  - Add Qt multimedia as a requirement for the GUI as it doesn't run
    without it.
* Sun Oct 09 2022 C J <c.j@tuta.io>
  - Update to version 71.0.0
    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.
* Wed Aug 17 2022 Luigi Baldoni <aloisio@gmx.com>
  - Switch to Qt6 build for Tumbleweed (fixes boo#1202446)
* Sun Aug 14 2022 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 70.0.0
    New features and enhancements:
    * MKVToolNix GUI: the user can now control where the job queue
      files & the preferences INI file are stored via environment
      variables. If set, the variable `MKVTOOLNIX_GUI_STATE_DIR`
      can point to a directory where the GUI stores both the job
      queue sub-directory and the preferences INI file. If you
      only want to relocate the preferences INI file, you can
      store the desired file name for the INI file in
      `MKVTOOLNIX_GUI_CONFIG_FILE`.
    * MKVToolNix GUI: when adding directories via drag & drop/copy
      & paste the GUI will now offer the user the option to create
      one multiplex settings tab per directory & adding all files
      from that directory to the corresponding, newly created tab.
    Bug fixes:
    * mkvmerge: AV1 OBU parser: fixed identifying files that only
      contain single frame.
    * MKVToolNix GUI: multiplexer: when reading color parameters
      from identified files that are floating point numbers
      (minimum/maximum luminance, projection pitch/roll/yaw) the
      numbers will be formatted in floating-point notation instead
      of scientific notation as mkvmerge only supports the former.
    * MKVToolNix GUI: multiplexer: color parameters that are
      floating point numbers (minimum/maximum luminance, projection
      pitch/roll/yaw) will only be set to a value during
      identification if the identification actually contains the
      property, and not to 0 anymore if it doesn't.
* Sat Jul 09 2022 Luigi Baldoni <aloisio@gmx.com>
  - Update to  version 69.0.0
    Important notes:
    * all: the spelling of "colour" was changed to "color"
      throughout all programs to match the use of American English
      spelling in MKVToolNix.
    New features and enhancements:
    * MKVToolNix GUI: the number of recently used entries (e.g.
      destination directories) remembered by the GUI can now be
      configured in the preferences.
    * MKVToolNix GUI: multiplexer: when adding files the track
      properties regarding color information & color mastering
      meta information will be parsed & set in the corresponding
      GUI controls.
    * MKVToolNix GUI: job queue: the job queue can now be sorted
      by clicking on the column headers.
    * MKVToolNix GUI: job queue: when loading jobs from the queue
      directory that weren't previously known to the program those
      jobs will be sorted by their "date added" timestamp instead
      of using the order the operating system returns them in.
    Bug fixes:
    * build system: fixed compilation with fmt v9.
    * mkvmerge: HEVC ES parser: the parser will now parse at least
      the first full access unit before reporting that it has found
      all the required headers. Otherwise parsing might stop in the
      middle of the access unit due to the source reader not
      providing more data in the first call, leading to the parser
      not finding the `unspec62` and `unspec63` NALUs required for
      Dolby Vision.
    * MKVToolNix GUI: preferences: the default actions added to
      the "execute programs" section on new installations now
      default to use WebM file names instead of Ogg, matching the
      format of the included audio files.
    Build system changes:
    * The bundled `fmt` library was updated to v9.0.0.
* Mon May 23 2022 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 68.0.0
    New features and enhancements:
    * mkvmerge: HDMV PGS subtitles: mkvmerge now tries to detect
      bogus timestamps (where the current timestamp is two hours
      or more after the previous timestamp) & correct them to
      something more sensible (1s after the previous timestamp).
      That way one bogus timestamp cannot cause the rest of the
      frames to not be interleaved properly with the other audio &
      video packets.
    * mkvmerge: added colour information, colour mastering meta
      information & video projection information properties to the
      JSON identification format. The properties are reported for
      container types for which mkvmerge supports reading them
      (Matroska & MP4). The JSON identification format version
      number has been bumped to v15.
    * MKVToolNix GUI: multiplexer: added controls for all the
      video colour information & the video projection information.
    Bug fixes:
    * mkvmerge: SRT reader: entries with a duration of 0 or less
      will now be skipped.
    * mkvpropedit, MKVToolNix GUI's chapter & header editors:
      fixed an invalid memory access when trying to update
      existing Matroska files whose EBML Head element had a "size"
      field length of eight bytes, and where rewriting said element
      would shrink the element by one byte. Files created by
      gstreamer fit the first part whereas the second depends on
      the changes requested by the user.
    * mkvpropedit, MKVToolNix GUI's chapter & header editors:
      fixed the programs not handling having to remove EBML void
      elements at the end of the file correctly and consequently
      aborting.
    * MKVToolNix GUI: the GUI now uses almost all SVG icons,
      allowing proper scaling even for scaling factors such as
      125%.
    * MKVToolNix GUI: when compiled with Qt 5 the character set of
      INI files is forced to UTF-8 in order to fix reading INI
      files written by a version compiled with Qt 6.
    Build system changes:
    * Qt's SVG library is now required.
* Sat Apr 16 2022 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 67.0.0
    New features and enhancements:
    * all: IETF BCP 47/RFC 5646 language tags: when deriving the
      legacy language element codes to use a language tag's ISO
      639 code is also potentially interpreted as an & its prefix
      is used as the legacy language code. For example, "Yue
      Chinese" = `yue` is not part of ISO 639-2. However, there is
      an extlang subtag `yue` with a valid prefix of `zh`
      ("Chinese"), and for "Chinese" there is an ISO 639-2
      language code: `chi`. In this example the IETF language
      element would be set to `yue` and the corresponding legacy
      element to `chi`.
    * all: IETF BCP 47/RFC 5646 language tags: grandfathered
      language tags are now supported.
    * all: IETF BCP 47/RFC 5646 language tags: all deprecated
      subtags from the IANA language subtag registry are now
      supported.
    * all: IETF BCP 47/RFC 5646 language tags: all lists of valid
      subtags have been updated from their respective
      authoritative sources.
    * all: IETF BCP 47/RFC 5646 language tags: all in the IANA
      language subtag registry are now supported, even those
      marked as deprecated and of type 'grandfathered'.
    * all: IETF BCP 47/RFC 5646 language tags: reduced the maximum
      number of extended language subtags that are present in a
      valid tag from 3 to 1 in compliance with RFC 5646 section
      2.2.2.
    * all: IETF BCP 47/RFC 5646 language tags: all language codes
      reserved for private/local use (`qaa`–`qtz`) are now
      supported.
    * all: IETF BCP 47/RFC 5646 language tags: Digital Cinema
      Naming Convention language codes that fall into the IETF BCP
      47 range of "private use" tags (`qaa`–`qtz`) are now
      replaced by their IETF BCP 47 equivalents during
      normalization (e.g. `QMS` → `cmn-Hans`).
    * all: added a new translation to Chinese Simplified
      (Singapore) by Dian Li.
    * mkvmerge, mkvpropedit: added a new command line option called
      `--enable-legacy-font-mime-types`. With this option on the
      two programs will use the same legacy MIME types for fonts
      whenever new attachments are added (both programs), when
      reading existing attachments (only `mkvmerge`) or when
      replacing existing ones (only `mkvpropedit`).
    * mkvmerge, mkvpropedit: IETF BCP 47/RFC 5646 language tags:
      added a command line option `--normalize-language-ietf
      <mode>` which turns on normalization of IETF BCP 47 language
      tags to either their canonical (mode `canonical`) or
      extended language subtags form (mode `extlang`) or turns it
      off (mode `off`). If the option isn't given, language tags
      will now be normalized to the canonical form.
    * MKVToolNix GUI: IETF BCP 47/RFC 5646 language tags: ISO
      639-3 and 639-5 languages will now be used by default.
    * MKVToolNix GUI: IETF BCP 47/RFC 5646 language tags: the
      language editor dialog will now show warnings in several
      cases: when deprecated tags are used; when the tag's
      canonical and/or extlang forms differ from the user input.
    * MKVToolNix GUI: IETF BCP 47/RFC 5646 language tags: the
      language editor now has a button to replace the current tag
      with a normalized form (canonical or extlang) if those
      differ from the current tag.
    * MKVToolNix GUI: IETF BCP 47/RFC 5646 language tags: added an
      option in the preferences to always normalize all language
      tags to their canonical or extlang forms or to turn
      normalization off. Can also be enabled from the language
      editor dialog.
    * MKVToolNix GUI: IETF BCP 47/RFC 5646 language tags: the
      language dialog now shows a warning if a variant is used
      with a prefix that isn't in the variant's list of suitable
      prefixes. It'll also say if the corresponding
      canonical/extlang forms would have a suitable prefix.
    * MKVToolNix GUI: IETF BCP 47/RFC 5646 language tags: the
      language dialog now shows a warning if a script is used with
      a language for which it should be suppressed.
    * MKVToolNix GUI: multiplexer: the track property group boxes
      in the scrollable pane are now collapsible & expandable,
      saving their state over restarts of the GUI. This is in
      preparation of adding many more track properties in future
      releases, allowing the user to hide parts they don't use all
      that often.
    * MKVToolNix GUI: multiplexer: if the option "use legacy font
      MIME types" is enabled in the preferences, the new command
      line option `--enable-legacy-font-mime-types` will be passed
      to `mkvmerge` in order to have it remap the MIME types of
      existing attachments, too.
    Bug fixes:
    * all: IETF BCP 47/RFC 5646 language tags: variants aren't
      validated wrt. to prefixes anymore as BCP 47 doesn't
      actually pose restrictions on them, saying only that
      prefixes "are suitable sequences" for use with the variants.
      What is now verified, though, is that no variant is used
      multiple times within the same language tag.
    * build system & MKVToolNix GUI: fixed detecting the presence
      of & the compilation with the multimedia module of Qt
      version 6.2.0 and newer.
    * MKVToolNix GUI: job queue: fixed compiling in the audio
      player code for the the "play audio" end-of-job action.
    * MKVToolNix GUI: multiplexer: recognizing added XML chapter,
      segment info or chapter files required the XML declaration &
      root node (e.g. `<?xml…?> … <Chapters>` for chapters) be
      located within the first 1 KB, which wasn't enough for files
      that contain a lot of comments at the start like the
      included `example-chapters-2.xml`. The detection range was
      extended to 10 KB.
    Build system changes:
    * The bundled `fmt` library was updated to v8.1.1.
    * The bundled `nlohmann-json` library was updated to v3.10.5.
    * The bundled `pugixml` library was updated to v1.12.1.
* Sun Mar 13 2022 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 66.0.0
    New features and enhancements:
    * mkvpropedit: added a new option `--chapter-charset` allowing
      the user to specify the character set to use when reading
      the following chapter file.
    * MKVToolNix GUI: each language shortcut can now be associated
      with an optional track name that is set along with the
      language when the shortcut is used.
    Bug fixes:
    * mkvmerge: Ogg/OGM reader: mkvmerge will no longer abort with
      an exception when it encounters Vorbis comments that contain
      data that isn't valid UTF-8.
    * MKVToolNix GUI: multiplexer: fixed several issues with the
      tab order of elements in the "properties" pane and the
      "output" tab. Also fixed the language display widgets (e.g.
      "track language" in the "properties" pane) never receiving
      tab focus.
    * MKVToolNix GUI: multiplexer: the chapter name template will
      now be passed to `mkvmerge` if a chapter file is selected on
      the "output" tab.
* Sun Feb 06 2022 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 65.0.0
    New features and enhancements:
    * mkvmerge: the options `--default-track` and `--forced-track`
      have been renamed to `--default-track-flag` and
      `--forced-display-flag` respectively
      for improved consistency with other option names & the
      wording used in the GUI. However, the old names will be
      supported and recognized
      indefinitely. What will remain unchanged is the property
      names for those flags in mkvmerge's identification output.
      Existing third-party programs will continue working as they
      are.
    * mkvmerge: added a new option `--track-enabled-flag` to set
      or unset the "track enabled" track header flag.
    * mkvmerge: MP4 reader: `mkvmerge` will now evaluate the
      `flags` field of the track header atom (`tkhd`) and set the
      track's "enabled" flag accordingly.
    * MKVToolNix GUI: multiplexer: added support for the "track
      enabled" track header flag.
    * MKVToolNix GUI: multiplexer, header editor: added several
      menu entries & keyboard shortcuts for toggling various track
      flags of the currently selected tracks, e.g. `Ctrl+Alt+F, D`
      (that's `Ctrl` and `Alt` with `F` simultaneously followed by
      `D` without any other key pressed) for toggling the "default
      track" flag.
    * MKVToolNix GUI: multiplexer, header editor: added menu
      entries & keyboard shortcuts for setting the language of the
      currently selected tracks to one from a configurable list of
      languages. The shortcuts used are `Ctrl+Alt+A, 1` through
      `Ctrl+Alt+A, 0` for the first ten entries of that list
      (that's `Ctrl` and `Alt` with `A` simultaneously followed by
      a digit without any other key pressed).
    * MKVToolNix GUI: chapter editor: if the user enters commas in
      start or end timestamps they will automatically be changed
      to points as the decimal separator, allowing for easier copy
      & paste from other programs/sources.
    * MKVToolNix: header editor: the selected track or attached
      file can now be moved up & down with the keyboard shortcuts
      `Ctrl+Up` & `Ctrl+Down` respectively.
    Bug fixes:
    * mkvmerge: Matroska reader: DVB subtitle tracks with a codec
      private data size of more than five bytes are accepted now,
      too.
* Mon Jan 10 2022 Guillaume GARDET <guillaume.gardet@opensuse.org>
  - Update _constraints to cover all architectures, not only ppc64
* Mon Dec 27 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 64.0.0
    New features and enhancements:
    * MKVToolNix GUI: language dialog: when the user switches
      between the two edit modes, the mode's corresponding first
      control is automatically focussed.
    Bug fixes:
    * all: language lists: the entries for "Ancient Greek (to
      1453)" and "Modern Greek (1453-)" have been renamed to
      "Greek (ancient, -1453)" and "Greek (modern, 1453-)"
      respectively in order to be easier to find.
    * mkvmerge: VobSub reader: files containing `id: --` lines to
      indicate that the track language isn't known were rejected
      by `mkvmerge`. Now they're accepted, and `und`
      (undetermined) is used as the language.
    * MKVToolNix GUI: chapter editor: the "Save to Matroska or
      WebM file" function was using the wrong standard file dialog
      (the "open file" one instead of "save"), leading to
      confusing button names.
    * MKVToolNix GUI: high DPI scaling: fixed the icons in the
      tool selector having the wrong size for scaling factors
      other than 100% or 200%.
    Build system changes:
    * The bundled `fmt` library was updated to v8.0.1.
    * The bundled `nlohmann-json` library was updated to v3.9.1.
    * The bundled `pugixml` library was updated to v1.11 revision
      6a76cac.
    * The bundled `utf8-cpp` library was updated to v3.2 revision
      b85efd6.
* Sun Nov 14 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 63.0.0
    New features and enhancements:
    * mkvmerge: AC-3 parser: E-AC-3 with BSID values > 10 and ≤ 15
      are recognized now, too.
    * mkvmerge: when using language codes for track selection
      (e.g. `-a und,en`) all tracks that do not have a language
      property (due to their container not providing one, e.g.
      AVIs) will be treated as if they did have one set to `und`
      ("undetermined") as that is the language the track will have
      in the Matroska file anyway. Before this change it wasn't
      possible to match such tracks via language codes.
    * MKVToolNix GUI: the spinner in the bottom right corner will
      now be hidden when no jobs are currently running.
    * MKVToolNix GUI: header editor: a new column has been added
      to the tree view showing the status of the "track enabled"
      flag. The information is also shown on the track overview
      page on the right.
    * MKVToolNix GUI: header editor: users can now reorder tracks
      by dragging & dropping.
    Bug fixes:
    * mkvmerge: AVI reader: fixed reading AVI files that contain
      `vprp` video properties header chunks; reading aborted too
      early.
* Sun Oct 10 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 62.0.0
    New features and enhancements:
    * all: IETF BCP 47/TFC 5646 language tags: all ISO 639
      languages are now available, even the ones that aren't of
      types "Constructed", "Living" or "Special".
    * mkvmerge, mkvpropedit: chapters: both programs will now
      write elements set to their default value, too (e.g. the
      legacy language element if it's set to `eng`). This is done
      to be more consistent with how MKVToolNix GUI writes chapters.
    * MKVToolNix GUI: multiplexer: when adding new files as
      attachments the GUI checks if there are other attachments with
      the same name. If so, the GUI would ask whether to skip the
      affected files or add them anyway. There's now an option in
      the preferences to always skip such files, and it's enabled
      by default.
    * MKVToolNix GUI: chapter editor: removed the support for
      explicitly setting the legacy country elements. Instead the
      legacy country elements are derived from the region parts of
      the IETF BCP 47 languages.
    Bug fixes:
    * mkvmerge: fixed a crash when splitting by chapters is
      enabled but there are no chapters at all.
    * mkvmerge: the error message when trying to split by a
      chapter number that doesn't exist contained the wrong
      number of chapters that actually do exist.
    * mkvmerge: AVC ES parser: fixed mkvmerge aborting due to
      uncaught exception when encountering bad SPS data.
    * mkvmerge: AVC/H.264 parser: re-added the hack `--engage
      all_i_slices_are_key_frames` which was accidentally removed
      in release v61.
    * mkvmerge: AVI reader: fixed a crash trying to allocate too
      big of a memory chunk due to an integer overflows in check
      conditions.
    * mkvmerge: HEVC ES parser: fixed another issue with frame type
      recognition. Certain frames were marked as B
      frames/discardable on the container level even though they
      could be reference pictures. Now only SLNR pictures
      (sub-layer non-reference) are marked that way.
    * mkvmerge: HEVC ES reader: improved file content detection
      for HEVC ES files with wrong file name extensions (e.g.
      `.mkv`), which fixes them being mis-detected as something
      else, e.g. DTS.
    * mkvmerge: HEVC ES parser: "end of sequence" NALUs are kept
      now, and no superfluous flushing will be done when one is
      found. This prevents splitting NALUs into two different
      Matroska blocks when they should really be part of a single
      one, also causing problems with erroneous timestamps. Mostly
      affects DoVi NALUs.
    * mkvmerge: Matroska reader, TrueHD: mkvmerge will now probe
      much more TrueHD frames trying to find the first sync frame.
      This fixes track detection in situations when a TrueHD
      doesn't start with a sync frame, e.g. when the source file's
      the result of splitting between sync frames.
    * mkvmerge, MKVToolNix GUI's chapter editor: IETF BCP 47/RFC
      5646 language tags: when reading chapters from MPLS playlist
      files, the `ChapLanguageIETF` element will now be set to the
      configured default chapter language, not just the legacy
      `ChapterLanguage` element.
    * mkvmerge, mkvpropedit, MKVToolNix GUI's chapter editor: IETF
      BCP 47 elements will now always be created before writing
      chapters unless IETF BCP 47 elements are disabled.
    * mkvmerge, mkvpropedit, MKVToolNix GUI's chapter editor: when
      a chapter display element contains legacy language & country
      elements but no IETF BCP 47 elements and IETF BCP 47 elements
      aren't disabled, the IETF BCP 47 elements created will
      contain the region from the legacy element.
    * mkvmerge, mkvpropedit, MKVToolNix GUI's chapter editor:
      Legacy country elements are now created when IETF BCP 47
      elements are present & contain a region code allowed in
      legacy country elements.
    Build system changes:
    * The `tools` sub-directory is now always built. The
      corresponding `configure` option `--with-tools` has been
      removed. The `install` target still doesn't install them,
      though.
  - Add tools subpackage
* Mon Aug 30 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 61.0.0
    New features and enhancements:
    * all: IETF BCP 47/RFC 5646 language tags: implemented support
      for officially registered IANA language tag extensions.
    * mkvmerge: track selection: when using language tags for
      selecting which tracks to keep, mkvmerge will now use
      component-based language tag matching instead of comparing
      them verbatim. This means that only those components
      (language, region etc.) the user specified will be required
      to exist and be equal. For example, if a file contains three
      subtitle tracks with languages `es` (generic Spanish),
      `es-MX` (Spanish as spoken in Mexico) and `es-ES` (Spanish as
      spoken in Spain), the user can use `--stracks es` to match
      all three tracks or be more specific with e.g. `--stracks
      es-MX` which would only match one track. Similarly inverting
      the selection with e.g. `--stracks !es` would get rid of all
      three tracks, not just the one for the generic Spanish.
    * MKVToolNix GUI: multiplexer: deriving track languages from
      file names: the GUI can now detect full BCP 47/RFC 5646
      language tags in file names.
    * MKVToolNix GUI: multiplexer: deriving track languages from
      file names: the default list of boundary characters now
      includes `-`.
    * MKVToolNix GUI: multiplexer: the GUI now defaults to the
      "lower" process priority setting for new installations in
      order to leave more room for other applications, especially
      interactive ones. Up to and including v59 the default was
      the "normal" process priority. v60 changed that to "lowest",
      which turned out to be much slower on Windows for no real
      gain over "lower". The setting will be auto-corrected by the
      GUI if the settings file were saved last with a version
      between v60.0.0.0 & v60.0.0.17 & "lowest" & it is still set
      to "lowest".
    * HEVC dumper development tool: the tool has been renamed to
      `xvc_dump` and extended to be able to dump AVC/H.264
      bitstreams, too. It now also detects the type of bitstream
      framing (ISO 14496-15 vs. ITU-T H.264/H.265 Annex B).
    Bug fixes:
    * all: IETF BCP 47/RFC 5646 language tags: fixed a corner case
      of wrongfully allowing scripts/variants not listed in any of
      the entries in the prefix list when the prefix list contains
      prefixes restricting scripts/variants and a prefix solely
      with the language at the same time (example: the variant
      `ekavsk` with its prefixes `sr`, `sr-Cyrl` and `sr-Latn`
      where e.g. `sr-ekavsk` and `sr-Cyrl-ekavsk` should be
      allowed but not `sr-Bali-ekavsk`).
    * mkvmerge: HEVC/H.265: the frame type of B frames was often
      wrongfully signalled as P frames instead, both with
      `BlockGroup` (missing second references) and `SimpleBlock`
      ("discardable" flag not set) elements.
    * mkvmerge: SSA/ASS packetizer: the frame numbers will now be
      re-calculated when appending SSA/ASS tracks so that frame
      numbers of appended tracks are always strictly higher than
      frame numbers of the track they're appended to.
    * mkvmerge, MKVToolNix GUI's chapter editor: BCP 47/RFC 5646
      language tags: when BCP 47 language tags are used with a
      language code that isn't part of ISO 639-2, the programs
      will now write a legacy language element set to `und`
      ("undetermined") instead of not writing such an element at
      all or writing one with an invalid code.
    * mkvmerge, MKVToolNix GUI's chapter editor: BCP 47/RFC 5646
      language tags: the programs will ensure that the legacy and
      IETF language elements written will be unique within the
      scope of the same "chapter display" element.
    * mkvinfo, MKVToolNix GUI's info tool: in summary mode the
      frame type was reported wrong for `BlockGroup` elements in
      which the `ReferenceBlock` elements were located behind the
      `Block` element.
    Build system changes:
    * all: `std::codecvt_utf8` is now used instead of Boost's
      `utf8_codecvt_facet`. The bundled copy the latter in
      `lib/boost` has therefore been removed.
  - Drop mkvtoolnix-use-system-boost.patch (no longer necessary)
* Sat Jul 31 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 60.0.0
    New features and enhancements:
    * all: IETF BCP 47/RFC 5646 language tags: added support for
      language families from ISO 639-5 that aren't part of 639-2.
    * all: IETF BCP 47/RFC 5646 language tags: implemented support
      for Alpha 2 country codes of the "user-defined" category:
      `AA`, `QM`–`QZ`, `XA`–`XZ` and `ZZ`.
    * all: IETF BCP 47/RFC 5646 language tags: updated the various
      lists of valid subtags from the official specs.
    * MKVToolNix GUI: multiplexer: pressing the keyboard shortcut
      for the track's "Language" label (Alt+L for English) will
      now open the language dialog.
    * MKVToolNix GUI: multiplexer: added an option in the
      preferences for turning off the colored boxes indicating
      which file each track belongs to.
    Bug fixes:
    * all: IETF BCP 47/RFC 5646 language tags: fixed validating
      extended language & variant subtags against their allowed
      prefixes (e.g. a valid tag with a country code as in
      `de-CH-1996` is recognized as valid while two generally
      known variants that aren't allowed together as in
    `de-1901-1996` is recognized as invalid).
    * all: IETF BCP 47/RFC 5646 language tags: when looking up a
      language for a two- or three-letter code, the programs will
      no longer compare that code with language names as that was
      unintended, ambiguous (e.g. the code "Ga" could be
      interpreted as the 639-2 alpha-2 code for "Irish" or as the
      name of the language called "Ga") and only worked with
      languages whose name was at most three letters long.
    * mkvmerge: HEVC/H.265: appending Matroska files with HEVC
      tracks might lead to the loss of the first couple of frames
      from each of the second and all following files.
    * mkvmerge, mkvextract: HEVC/H.265 parser: fixed the programs
      aborting when parsing VPS or SPS NALUs with invalid content
      due to unhandled exceptions.
    * MKVToolNix GUI: multiplexer: when the option "use legacy
      MIME types for font attachments" is enabled, the GUI will
      now use `application/x-truetype-font` for font collection
      files.
    * MKVToolNix GUI: multiplexer: when adding multiple files at
      once, the GUI will sort file names with numbers the way a
      human would expect it to. For example, `1.mp4`, `9.aac`,
      `10.srt`, `11.srt` are now sorted exactly that order instead
      of `1.mp4`, `10.srt`, `11.srt`, `9.aac`.
    * MKVToolNix GUI: header editor: the header editor will now
      honor the "use legacy MIME types when adding font
      attachments" setting when adding new attachments.
* Sat Jul 10 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 59.0.0
    New features and enhancements:
    * mkvmerge: WebVTT parser: the parser now follows the specs'
      rules for parsing timestamps more closely by being more
      lenient: it allows arbitrary number of spaces & tabs at the
      start of the line & around the arrow; it allows any number
      of digits for the hours.
    * MKVToolNix GUI: multiplexer: when adding a Blu-ray playlist
      without scanning for other playlists the GUI will now look
      for disc library information & let the user select which one
      to use if there's more than one entry.
    * MKVToolNix GUI: multiplexer: added an option for sorting
      files & tracks by track types when adding them to multiplex
      settings. The order is: video first followed by audio,
      subtitles and other types. Files & tracks can still be
      reordered manually later. The option is enabled by default &
      can be found in the preferences → "Multiplexer" page →
      "Adding files" section.
    * MKVToolNix GUI: multiplexer: added an option for recognizing
      file name sequences such as `movie.001.mp4`, `movie.002.mp4`,
      `movie.003.mp4` when adding multiple files at once. If a
      sequence is detected, the only first file will be added while
      the second and following file names will be appended to the
      first one. The option is enabled by default & can be found
      in the preferences → "Multiplexer" page → "Adding files"
      section.
    * MKVToolNix GUI: multiplexer: added small colored boxes for
      each file & track in order to indicate from which file each
      track is read. The colors used can be configured in the
      preferences → "Multiplexer" page → "File & track colors"
      section.
    Bug fixes:
    * build system: fixed compilation with fmt v8. Fixes #3151.
    * mkvmerge: SRT subtitle reader: characters that aren't valid
      according to the assumed encoding of the file will now be
      replaced by the Unicode "Replacement Character" U+FFFD
      instead of keeping the invalid characters, potentially
      violating the Matroska specs.
    * mkvmerge: WebVTT parser: the parser now accepts timestamps
      with hours larger than 99.
    * mkvextract: TTA extraction, only on Windows: fixed removing
      the temporary file created during extraction.
    * mkvmerge, mkvpropedit, MKVToolNix GUI's multiplexer & header
      editor: MIME type detection is now done using Qt instead of
      the `magic` library. The main impact is the MIME types of
      TrueType & OpenType fonts are now detected correctly.
    * MKVToolNix GUI: multiplexer: when adding files to the
      multiplexer by running the GUI's executable with file names
      as command line arguments, the source directory will be
      remembered as the "last open directory" again, causing
      subsequent uses of the "open file" dialog to start in the
      same directory.
    * MKVToolNix GUI: multiplexer: the "default track flag" column
      in the track list was missing its icons. Additionally it
      contained text even for things that aren't regular tracks
      and therefore do not actually have that flag (e.g. chapters
      or tags).
    * MKVToolNix GUI: multiplexer: the default for the dialog
      asking the user what to do with dragged & dropped files if
      they've never seen the dialog is back to adding the files to
      the current multiplex settings instead of "add as additional
      parts" which was an unintentional default.
    * MKVToolNix GUI: multiplexer: the "show command line" dialog
      will now always use backward slashes for the "Windows
      (cmd.exe)" mode and forward slashes for the "Linux/Unix
      shells" mode, regardless of the operating system it's
      currently running on.
    Build system changes:
    * The Qt library is now required for building all
      applications, even the command-line ones, as they use Qt's
      MIME type detection capabilities. In turn this means that
      you cannot disable the Qt usage anymore; either Qt5 or Qt 6
      is required. You can still chose not to build MKVToolNix
      GUI, though. A new option has been added to `configure`
      for this purpose: `--disable-gui`.
    * The `gmp` library is now required.
    * The `magic` library is not used anymore.
    * The `PCRE2` & `JPCRE2` libraries are not used anymore. The
      bundled version of `JPCRE2` was removed.
    * Boost's "rational" library is not used anymore.
    * `configure`: the option `--enable-appimage` has been
      removed. The location of the relevant directories within an
      AppImage is now detected automatically.
    * The bundled `fmt` library was updated to v8.0.0.
  - Use system version of utfcpp
* Sun Jun 13 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 58.0.0
    New features and enhancements:
    * mkvmerge, MKVToolNix GUI's multiplexer: the handling of the
      "default track" flag has been changed to match the recent
      changes to the Matroska specifications. The new semantics
      are that if it is set, it is supposed to signal to the
      player that this track is eligible for being played by
      default, potentially taking other factors such as user
      preferences regarding languages into account.
      This implies that more than one track of each type can have
      this flag set. For example, a Blu-ray disc with three audio
      tracks might have the main audio in both English and
      Japanese, whereas the third audio track contains the
      director's comments. In such a case the first two tracks
      should have the "default track" flag set, the third one
      shouldn't.
      Earlier `mkvmerge` was enforcing that only one track of each
      type could have the flag set. This restriction has been
      removed, both in `mkvmerge` and in the GUI's multiplexer.
      `mkvpropedit` and the GUI's header editor are unaffected as
      they've always allowed to set the flag on as many tracks as
      the user wanted.
    * mkvmerge: AVC/H.264 & HEVC/H.265 identification: added the
      stream's pixel dimensions (AVC only; were present for HEVC
      already) & default duration.
    * mkvmerge, mkvextract: HEVC/H.265: added support for reading
      single-layer Dolby Vision from Annex B type bitstreams
      (elementary streams, MPEG transport streams).
    * mkvinfo: the option `-X`/`--full-hexdump` now affects all
      binary elements, not just the frame data in `SimpleBlock`
      and `BlockGroup` elements.
    * MKVToolNix GUI: multiplexer: the "delay" and "sync" options
      can now be used for chapters in source files, too.
    * MKVToolNix GUI: when moving list entries up & down with the
      optional buttons or the keyboard shortcuts (instead of using
      drag & drop), the GUI ensures that the top-most selected
      entry remains visible after the move.
    * MKVToolNix GUI: added an option in the preference to use
      legacy MIME types for font attachments instead of the current
      standard ones (e.g. 'application/x-truetype-font' instead of
      'font/sfnt' and 'font/ttf').
    Bug fixes:
    * build system: fixed filtering out optimization options when
      compiling the file `iso639_language_list.cpp` (before only
      numeric optimization levels were filtered out and only if it
      wasn't the last option in the list of flags).
    * build system: when libmagic was detected via `pkg-config`,
      MKVToolNix was actually compiled without support for
      libmagic due to a preprocessor symbol not being defined.
    * mkvmerge: MP4 reader: fixed an issue with timestamps
      overflowing when the file's or the track's time scale is
      large.
    * mkvmerge, mkvextract: fixed key frame handling for
      `BlockGroup` elements with a forward reference but no
      backward references.
    * mkvmerge, mkvpropedit, MKVToolNix GUI's chapter editor: the
      programs will no longer omit writing mandatory elements set
      to their default value if other elements of the same type
      are present in the same master. This affects mostly the
      "chapter language" element which may occur multiple times
      within the same "chapter display" master. If it does occur
      multiple times and one of them is set to "English" (which is
      that element's default value), that element will now be
      written, too.
    * mkvmerge, mkvpropedit, MKVToolNix GUI's chapter editor: when
      parsing chapter files IETF & legacy language elements as
      well as legacy country elements will now be properly
      generated depending on which exist already, especially when
      there's more than one language and/or country element
      in a "chapter display" element.
    * mkvmerge, mkvpropedit, MKVToolNix GUI's chapter editor:
      fixed reading OGM-style chapter files with timestamps that
      don't have exactly three decimal places. Any number of
      decimal places between one and nine is now supported for
      nanosecond precision.
    * MKVToolNix GUI: chapter editor: added/fixed support for
      "chapter display" elements with multiple languages or
      countries.
    Build system changes:
    * Qt 6: added support for building with Qt 6. `configure` will
      look for Qt 6 first and only continue looking for Qt 5 if Qt
      6 isn't found or disabled via `--disable-qt6`.
      Qt 6 detection works by first looking for the `qmake6`
      binary. Its location can be specified with the
      `--with-qmake6=…` option.
      All other Qt 6 related facts (such as compiler & linker
      flags or the position of the other required tools such as
      `lconvert`, `moc`, `rcc` and `uic`) will be derived from
      the output generated by `qmake6`.
      Note that at this point Qt 6 is not yet supported for the
      cross-compilation  build to Windows, nor is a static Qt 6
      build supported yet. Note that the command line options
      `--enable-static-qt`, `--with-qt-pkg-config-modules` and
      `--without-qt-pkg-config` only apply to the Qt 5 and have
      no effect on Qt 6.
    * Qt 5: the options for specifying the position of the tools
      (`--with-moc=…`,`--with-rcc=…` and `--with-uic=…`) have been
      removed. Their position will now be derived from the output
      generated by `qmake`.
    * `configure`: completely disabling the GUI now requires
      passing both `--disable-qt6` and `--disable-qt` options.
    * Boost's multi-precision library is now required.
    * Boost v1.66 or newer is now required.
* Sat May 22 2021 Luigi Baldoni <aloisio@gmx.com>
  - Up date to version 57.0.0
    New features and enhancements:
    * mkvmerge: MP4 reader: added support for reading Dolby Vision
      from MP4 files (FourCCs `dvh1` and `dvhe`; configuration
      records `dvcC`, `dvvC` and `hvcE` will be converted into
      block addition mappings).
    * mkvmerge: SRT subtitles: mkvmerge now accepts empty text
      files with the extension `.srt` as SRT subtitle files,
      enabling the creation of empty SRT tracks.
    * mkvmerge, mkvextract: HEVC/H.265: access unit delimiter
      NALUs will no longer be discarded, neither during muxing nor
      during extraction.
    * MKVToolNix GUI: preferences: switched the order & wording of
      controls in the "enabling items" panel to make it clearer
      that certain controls define exceptions.
    Bug fixes:
    * mkvmerge: HEVC/H.265 parser: several NALU types, notably the
      Dolby Vision-specific NALUs ("unspecified 62" and
      "unspecified 63") and suffix SEI NALUs, are now stored with
      the frame they belong to instead of with the next frame.
    * mkvmerge: HEVC/H.265 packetizer: fixed setting the track's
      default duration when reading HEVC/H.265 from Matroska files
      that don't have a default duration set.
    * mkvmerge: HEVC/H.265 packetizer: fixed the calculation of
      the duration of frames so that `SimpleBlock` elements can be
      used again instead of `BlockGroups` with `BlockDuration`
      elements.
    * mkvmerge, mkvextract: HEVC/H.265 parser: fixed issues with
      ordering & duplication of certain NALUs (parameter set &
      prefix SEI NALUs).
    * MKVToolNix GUI: multiplexer: when dragging & dropping files
      to the multiplexer, the source directory will be remembered
      as the "last open directory" again, causing subsequent uses
      of the "open file" dialog to start in the same directory.
    * mkvinfo: fixed the position of frames in block groups
      containing "block duration" elements in summary mode (e.g.
      for subtitle tracks).
    Build system changes:
    * `configure` will now try to detect `libmagic` via
      `pkg-config` and fall back to including & linking directly if
      it cannot be found via `pkg-config`.
* Fri Apr 09 2021 aloisio@gmx.com
  - Update to version version 56.1.0
    New features and enhancements:
    * mkvmerge: AAC: added support for LOAS/LATM files with
      channel configuration indexes 9–21 (e.g. channel count 22.2
      for index 13) according to Rec. ITU-R BS.1196-7 & ISO/IEC
      23008-3:2019.
    Bug fixes:
    * mkvmerge: HEVC/H.265 parser: fixed invalid memory access
      that could happen when reading certain types of HEVC data
      (e.g. with changing parameter sets mid-stream) from certain
      containers (e.g. Matroska). This bug was introduced in
      release 56.0.0.
    * mkvextract: AAC: mkvextract will now abort with an useful
      error message when the user tries to extract a track whose
      'audio-specific config' element in `CodecPrivate` signals a
      number of channels of 7 or greater than 8 as that isn't
      supported by the ADTS format.
    Build system changes:
    * configure: the `--enable-ubsan` option hasn't actually
      enabled anything since release 39.0.0.
* Mon Apr 05 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 56.0.0
    New features and enhancements:
    * mkvmerge, mkvpropedit: tags: the programs will no longer
      write tag elements that are mandatory and set to their
      default value (e.g. "tag language" set to `und` =
      undetermined).
    * mkvmerge, mkvpropedit, MKVToolNix GUI chapter editor:
      chapters: the programs will no longer write chapter elements
      that are mandatory and set to their default value (e.g.
      "chapter language" set to `eng` = English or "Chapter flag
      enabled" = 1).
    * mkvextract: chapters: mkvextract will no longer add a
      `ChapterLanguage` element set to `eng` to the generated XML
      content if the source file doesn't contain such an element.
    * MKVToolNix GUI: multiplexer: when using the "tab widget
      below the files & tracks" layout option for the track
      properties the elements in the "general options" tab will
      use six rows à four columns instead of twelve rows à two
      columns, greatly reducing the required height.
    Bug fixes:
    * mkvmerge: AAC reader: fixed mkvmerge aborting to read AAC
      files bigger than 2 GB with a message about not being able
      to allocate memory.
    * mkvmerge: chapters: `ChapLanguageIETF` elements were still
      created when the option `--disable-language-ietf` was given
      after an option leading to the creation of chapters. Now the
      position doesn't matter anymore.
    * mkvmerge: chapters: when the option
      `--disable-language-ietf` is used, `ChapLanguageIETF`
      elements won't be written even when sources are read
      (Matroska files or XML chapters files) that do contain those
      elements.
    * mkvmerge: tags: when the option `--disable-language-ietf` is
      used, `TagLanguageIETF` elements won't be written.
    * mkvmerge: tags: mkvmerge will no longer write language
      elements for the track statistics tags it creates, making
      the effective language "undetermined" due to `und` being the
      default value for the legacy tag language element.
    * mkvmerge: tags: the XML tag parser will now validate all
      `<Simple>` children of `<Tag>` elements, not just the first
      for each `<Tag>`.
    * mkvmerge: tags: the XML tag parser now uses the
      spec-compliant `und` ("undetermined") as the default
      language for `<Simple>` tags instead of `eng`.
    * mkvmerge, mkvpropedit: tags: mkvmerge will no longer set the
      "target type" for track statistics tags (earlier it used
      `MOVIE`). The "target type value" will still be set to `50`.
    * mkvmerge, mkvextract: HEVC/H.265: both programs will now
      normalize the placement of VPS, SPS and PPS NALUs. Each key
      frame is prefixed with exactly one copy of the currently
      active parameter sets. This fixes certain classes of bugs
      related to splitting/appending.
    * mkvinfo: when compiled with newer versions of the `fmt`
      library, certain numbers were not output correctly (e.g. a
      track's audio sampling frequency of 48000 might be output as
      48).
    * MKVToolNix GUI: multiplexer: deriving the track language
      from the file name will match languages case insensitively
      again (like versions prior to v55).
    * MKVToolNix GUI: multiplexer: under certain circumstances
      keyboard shortcuts such as `Ctrl+W` for closing the active
      tab or `Ctrl+R` for starting to multiplex ceased to work
      until the user did certain other things (such as switching
      to a different tool & back to the multiplexer or opening the
      multiplexer menu). This started with v54.
    * MKVToolNix GUI: chapter editor: the editor will no longer
      create empty `ChapterCountry` elements when adding a chapter
      name with no default country selected in the preferences.
    Build system changes:
    * The bundled `fmt` library was updated to v7.1.3.
* Sat Mar 06 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 55.0.0
    Bug fixes:
    * MKVToolNix GUI: multiplexer: the user can now configure what
      to do when using the "Add source files" button independently
      of the setting for what happens when files are dragged &
      dropped onto the GUI. The same options are available, but
      they're distinct settings, allowing for different use cases.
    * MKVToolNix GUI: multiplexer: deriving the track language
      from file names doesn't use one big regular expression of all
      enabled languages anymore. Instead, the file name is split
      into parts on a list of characters (such as `.` or
      `(` and `)`; configurable in the preferences). This prevents
      the regular expression becoming too big for the regular
      expression library to handle when many languages are enabled.
    * MKVToolNix GUI: preferences: the language lists for
      "deriving track languages" and "enabling items by language"
      always included all the ISO 639-3 languages, even if those
      weren't enabled in the "often-used languages" pane.
    Other changes:
    * mkvmerge, MKVToolNix GUI multiplexer: the functionality for
      changing the length of the NALU "size" field for AVC/H.264
      and HEVC/H.265 tracks has been removed. The corresponding
      command-line option will continue to be recognized by
      mkvmerge as not to break existing third-party applications,
      but it won't actually do anything.
* Fri Feb 26 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version  54.0.0
    New features and enhancements:
    * mkvmerge: added support for using ISO 639-3 language codes in
      IETF BF47 language tags.
    * mkvmerge: AC-3 parser: added support for byte-swapped AC-3
      data.
    * mkvmerge: Matroska reader: for audio tracks that have the bit
      depth track header set mkvmerge will now keep that header
      even for codecs that don't require it for decoding.
    * mkvmerge: MPEG transport stream reader, PCM audio tracks:
      mkvmerge will now re-order the channels for 5.1, 7.0 and 7.1
      channel tracks from the Blu-ray layout to the
      WAVEFORMATEXTENSIBLE layout expected in Matroska.
    * mkvmerge, mkvinfo, mkvpropedit, MKVToolNix GUI: added support
      for the following new track header elements: "hearing impaired"
      flag, "visual impaired" flag, "text descriptions" flag,
      "original" flag, "commentary" flag.
    * MKVToolNix GUI: added support for using ISO 639-3 language
      codes in IETF BF47 language tags. As there are several
      thousand of them, they're deactivated by default and must be
      activated in the preferences ("GUI" → "Often used selections"
      → "Languages").
    * MKVToolNix GUI: multiplexer: when adding Blu-rays the user
      can select multiple playlists to add simultaneously in the
      "select playlist to add" dialog.
    * MKVToolNix GUI: multiplexer: the file name extensions "eb3"
      and "ec3" were added for Dolby Digital Plus & "mpl" for Dolby
      TrueHD in the file dialogs.
    * MKVToolNix GUI: multiplexer: when adding multiple files the
      dialog asking the user what to do with them has gained a new
      checkbox. If enabled, all files containing at least one video
      track will always be placed in newly created multiplex
      setting.
    * MKVToolNix GUI: multiplexer: added a menu entry in the
      "Multiplexer" for adding all files that are currently in the
      clipboard.
    Bug fixes:
    * mkvextract: AAC: fixed wrong channel mask field in the ADTS
      headers for 7.1 channel layouts.
    * mkvextract: h.265/HEVC extraction: if the first frame starts
      with the parameter sets (SPS, PPS & VPS), the ones from
      CodecPrivate aren't written and the ones from the first frame
      are kept.
    * mkvmerge: fixed the calculation of chapter timestamps read
      from NTSC DVDs.
    * MKVToolNix GUI: IETF BCP 47 language widget: the language
      combo box will now always contain the language code the user
      enters in the free-form field, even if it isn't in the list of
      often-used languages the user configured in the preferences.
    * MKVToolNix GUI: multiplexer: when browsing for the
      destination file name the default directory is now chosen
      according to the preferences regarding how the destination
      file name should be formed. For example, if the policy is
      set to "fixed output directory" then that output directory
      will be the one initially set when the directory selection
      dialog is opened.
    * MKVToolNix GUI: multiplexer: fixed the removal of appended
      source files if the "delete source files" end-of-job action
      is enabled.
    * MKVToolNix GUI: chapter editor: when importing chapters from
      DVDs the IETF BCP 47 language elements will be set, too, not
      just the legacy language elements.
    Build system changes:
    * libEBML v1.4.2 and libMatroska v1.6.3 are now required. The
      optional, bundled copies of both libraries have been updated
      to those versions. This bump in requirements fixes several
      heap overflow bugs in libEBML.
    * MKVToolNix is now using the C++17 library feature "file
      system library" instead of Boost's "file system" and "system"
      libraries. For the GNU Compiler Collection (gcc) libstdc++
      this means v8 or newer is required; for clang's libc++ it
      means v7 or newer.
* Sat Jan 30 2021 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 53.0.0
    New features and enhancements:
    * mkvmerge: AVI reader: added support for reading the video
      aspect ratio from the video properties header (`vprp` chunk)
      if present and setting the display dimensions accordingly.
    * mkvmerge: MP4 reader: for h.264/AVC tracks that don't have an
      `AVCConfigurationBox` (`avcC` atom) in their sample
      description (`stsd`) atom or whose `avcC` atom contains no
      content `mkvmerge` will now re-derive the
      `AVCConfigurationBox` from the bitstream.
    * mkvextract: mkvextract will now check if any of the
      destination file names is the same as the source file name
      and abort with an error if that's the case.
    * MKVToolNix GUI: when querying the user for a file name for
      saving things (e.g. multiplexer settings or an attachment in
      the header editor), the automatically suggested file name
      will now be based on the situation-specific file names (e.g.
      the destination file name for multiplexer settings or the
      attachment's name when saving an attachment in the header
      editor) instead of the directory's name.
    * MKVToolNix GUI: multiplexer: when deriving track languages
      from file names the GUI will now select the right-most match
      instead of the left-most one. For example,
      "La.vie.en.rose.(fr).srt" will now be detected as French (fr)
      instead of English (en).
    * MKVToolNix GUI: preferences: the items in the "pre-defined
      …" lists can now be renamed by double-clicking with the
      mouse or pressing the F2 key.
    Bug fixes:
    * mkvmerge: stretching chapter timestamps with
      `--chapter-sync` now works correctly with floating point
      values including fractions of floating point numbers (e.g.
      `12.3/45.67`). The tooltips in the GUI have been adjusted
      accordingly.
    * mkvmerge: MPEG 1/2 video handling: the "default duration"
      header field was often half the value it actually should be,
      resulting in all video frames having an explicit block
      duration with the correct value.
    * mkvmerge: MPEG 1/2 video handling: the data stored in `Codec
      private` and `Codec state` doesn't contain extensions other
      than sequence & sequence display extensions anymore.
    * mkvmerge: tag handling: when remuxing a Matroska file with
      the `--no-track-tags`, existing `SOURCE_ID` track tags are
      now skipped, too.
    * MKVToolNix GUI: multiplexer: the drop-down boxes with
      pre-defined track names now follow the order set in the
      preferences instead of sorting the entries alphabetically.
* Tue Jan 05 2021 aloisio@gmx.com
  - Update to version 52.0.0
    New features and enhancements:
    * MKVToolNix GUI: job queue: the maximum number of jobs to run
      concurrently can now be increased in the preferences. The
      default remains at 1.
    * MKVToolNix GUI: the GUI will now add a context-specific
      default extension to file names selected for saving on
      platforms that don't add one itself (e.g. GNOME). For
      example, when saving multiplexer settings the extension
      `.mtxcfg` will be added.
    * MKVToolNix GUI: added an option to the preferences for the
      window to stay on top of other windows.
    Bug fixes:
    * mkvextract: h.265/HEVC extraction: the code for skipping
      extraction of prefix SEI NALUs in the first frame was
      skipping two bytes too few, resulting in broken processing
      of all following bytes.
    * libEBML: the optional, bundled version of libEBML was
      updated to v1.4.1.
    Build system changes:
    * libEBML v1.4.1 is now required due to a bug in libEBML that
      caused pointers to just-freed memory being returned to the
      caller under certain invalid data constellations, causing
      use-after-free errors in all of MKVToolNix's programs.
* Sun Oct 04 2020 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 51.0.0
    New features and enhancements:
    * mkvmerge, mkvpropedit, MKVToolNix GUI: IETF BCP 47 language
      tags: added missing support for UN M.49 regions for which
      there are no corresponding ISO 3166 alpha codes. This
      enables language tags such as `es-419` = Spanish in
      Latin America and the Caribbean.
    * MKVToolNix GUI: IETF BCP 47 language tags: the text in the
      widget displaying the current language & the corresponding
      edit button is now displayed like a link (depending on the
      theme: different color & underlined), making it clearer
      that not just the edit button can be clicked but the text,
      too.
    Bug fixes:
    * mkvmerge: AV1 parser: fixed mkvmerge crashing after uncaught
      exceptions due to certain data conditions. Found by fuzzying.
    * mkvmerge: AV1 packetizer: the duration of frames wasn't set
      properly. When appending AV1 IVF or OBU files this meant that
      the last frame of the Nth file and the first frame of file
      N+1 had the same timestamp.
    * mkvmerge: DTS reader: fixed handling of buffers with an odd
      length when byte-swapped DTS is detected so that mkvmerge
      doesn't abort with a failed assertion. Found by fuzzying.
    * mkvmerge: h.264/AVC and h.265/HEVC elementary stream
      readers: mkvmerge will no longer claim to recognize data
      that looks like AVC or HEVC but with invalid video
      width/height values as that lead to failed assertions in
      libEBML later. Found by fuzzying.
    * mkvmerge: h.265/HEVC parser: fixed mkvmerge aborting after
      uncaught exceptions due to certain data constellations found
      by fuzzying.
    * mkvmerge: IVF reader: fixed mkvmerge crashing with a
      "division by zero" error due to certain data conditions.
      Found by fuzzying.
    * mkvmerge: fixed mkvmerge aborting with a "division by zero"
      error due to the timestamp scaling factor being 0 after
      handling certain data constellations. Found by fuzzying.
    * mkvmerge: track statistics: fixed a "division by zero" error
      when the content's shorter than 1ms. Found by fuzzying.
    * mkvmerge, mkvinfo, mkvextract, mkvpropedit: Matroska access
      class: fixed an invalid memory access under certain data
      conditions. Found by fuzzying.
    * MKVToolNix GIU: IETF BCP 47/RFC 5646 language tags: the GUI
      will no longer open the language dialog when clicking on a
      disabled language display widget.
    * MKVToolNix GUI: IETF BCP 47 language tags: the "variants"
      combo-boxes were not populated even when the language tag was
      valid and contained at a variant.
    * MKVToolNix GUI: IETF BCP 47 language tags: when no language
      is selected, at least one of the other components (extended
      subtags, region, or variants) has something selected and
      "private use" is not empty, the GUI would claim this to be a
      valid tag, which it isn't.
    * MKVToolNix GUI: multiplexer: when the tracks/chapters/tags
      selection changes from "at least one entry selected" to "no
      entry selected", the input controls will be reset to their
      default state and not just disabled.
    Build system changes:
    * `configure` now checks for the presence of the a system-wide
      installed copy of the JPCRE2 C++ wrapper library for the
      PCRE2 library and uses that if it's new enough (at least
      v10.32.1). If not, the bundled version will be used as a
      fallback.
* Sun Sep 06 2020 aloisio@gmx.com
  - Update to version 50.0.0
    New feature: IETF BCP 47 language tags:
    * I've written up a [nice FAQ
      https://gitlab.com/mbunkus/mkvtoolnix/-/wikis/Languages-in-Matroska-and-MKVToolNix
      about the switch to using IETF BCP 47 language tags, how
      they interact with legacy language elements, how the programs
      actually behave and how to disable their use if necessary.
    * mkvmerge: IETF BCP 47/RFC 5646 language tags: mkvmerge will
      now accept full BCP 47 language tags for all options taking
      a language. mkvmerge will always write "LanguageIETF" track
      header elements. If the language tag contains a valid ISO
      639-2 language code it will also set the legacy "Language"
      track header element to the included ISO 639-2 code.
    * mkvmerge: IETF BCP 47/RFC 5646 language tags: if present the
      "LanguageIETF" track header element will be reported as the
      `language_ietf` property in JSON identification mode.
    * mkvmerge: IETF BCP 47/RFC 5646 language tags in chapters:
      mkvmerge will now write "ChapLanguageIETF" elements when
      creating chapter atoms, either when reading the simple
      chapter format or when generating
      chapters due to the `--generate-chapters` command line
      option.
    * mkvmerge: IETF BCP 47/RFC 5646 language tags in tags:
      mkvmerge will now write "TagLanguageIETF" elements when
      creating "simple tag" elements, either when reading tag XML
      files or when generating them.
    * mkvmerge: IETF BCP 47/RFC 5646 language tags: added an option
      `--disable-language-ietf` that causes mkvmerge to only write
      the legacy language elements.
    * mkvmerge, mkvpropedit, MKVToolNix GUI's chapter editor: IETF
      BCP 47/RFC 5646 language tags in chapters: when reading XML
      chapter files the programs will now add "ChapLanguageIETF"
      elements for atoms that don't contain them. The values are
      derived from existing "ChapterLanguage" elements.
    * mkvpropedit: IETF BCP 47/RFC 5646 language tags:
      setting/deleting the track language now acts on both the old
      language element as well as the "LanguageIETF" track header
      element.
    * mkvpropedit: IETF BCP 47/RFC 5646 language tags: added an
      option `--disable-language-ietf` that causes mkvpropedit to
      apply changes to the `language` track header property only
      to the legacy language track header element.
    * mkvinfo: IETF BCP 47/RFC 5646 language tags: added support
      for the "LanguageIETF" track header element.
    * MKVToolNix GUI: multiplexer: added full support for IETF BCP
      47/RFC 5646 language tags for both track and chapter
      languages.
    * MKVToolNix GUI: chapter: added full support for IETF BCP
      47/RFC 5646 language tags for chapter languages.
    * MKVToolNix GUI: header editor: added full support for IETF
      BCP 47/RFC 5646 language tags for track header languages.
      The header editor allows editing of the legacy language
      elements and the IETF BCP 47 language elements independent
      of each other.
    Other new features and enhancements:
    * mkvmerge: the chapter generation mode `when-appending` now
      also works with the splitting modes `parts:` &
      `parts-frames:` when using the `…,+…` syntax for appending
      other sections of the source file to the same  destination
      file.
    * MKVToolNix GUI: multiplexer: the file selection dialogs now
      include the extension `.dtsma` for DTS files.
    * mkvmerge: MP4 reader: sped up parsing MP4 DASH files with a
      lot of segments (`trun` atoms) quite a bit.
    * The PCRE2 regular expression library is now used instead of
      `std::regex` for big performance improvements in all places
      where regular expressions are used for parsing big chunks of
      text, e.g. in the subtitle parsers.
    Bug fixes:
    * MKVToolNix GUI: preferences: under certain conditions
      changing the selected entry in the page tree on the left did
      not cause the page shown on the right to be updated.
    * mkvmerge: splitting text by a fixed string (e.g. `,`) is now
      done by using `std::string.find()` instead of using a
      regular-expression-based text splitting function, greatly
      improving its performance.
    * mkvmerge: MP4 reader: fixed handling of `tkhd` atoms of
      version 1.
    Build system changes:
    * The PCRE2 library (the 8-bit variant) is now required.
* Sun Aug 02 2020 aloisio@gmx.com
  - Update to version 49.0.0
    New features and enhancements:
    * mkvmerge: added support for copying the new track header
      elements `BlockAddIDName`, `BlockAddIDType`,
      `BlockAddIDValue` and `BlockAddIDExtraData` from Matroska
      files if they exist.
    * mkvinfo: added support for the new track header elements
      `BlockAdditionMapping`, `BlockAddIDName`, BlockAddIDType`,
      `BlockAddIDValue` and `BlockAddIDExtraData`.
    * MKVToolNix GUI: multiplexer: the list of recent directories
      can now be edited in the preferences → "Multiplexer" →
      "Destination file name".
    * MKVToolNix GUI: preferences: the values in the various
    "predefined values" lists can now be re-ordered freely by
      dragging & dropping.
    Bug fixes:
    * mkvmerge: Matroska reader: when reading tracks (e.g. a
      subtitle track) from Matroska files with their `default
      track` flag set to `yes`, and when overwriting those via the
      command line to `no`, `mkvmerge` would not promote
      additional tracks of the same type from other files (e.g.
      another subtitle track from an SRT file).
    * mkvmerge: SRT reader: empty lines inside entries were
      doubled.
    * mkvmerge: subtitles: when calculating the rounded duration
      of each entry the error from rounding the corresponding
      timestamp will be taken into account.
    * mkvextract: SSA/ASS extraction: mkvextract is no longer
      inserting empty lines before the `Dialogue:` lines.
    * mkvextract: USF subtitles: start & end timestamps were too
      high by a factor of 1.000.000.
    * MKVToolNix: info tool: when saving to a text file the
      checkbox "Save as default for saving output to text files"
      did nothing.
    * MKVToolNix: info tool: when saving to a text file in "all
      elements in a tree-like structure" mode, the GUI always
      stopped at the first cluster regardless of the setting of
      the "verbosity" option.
    * MKVToolNix GUI: preferences: when tooltips were disabled the
      dialogs for adding new entries to the various "predefined
      values" lists were missing their texts.
    * configure: fixed detection of QtDBus. Fixes #2886.
    Build system changes:
    * libMatroska v1.6.1 is now required. The bundled version has
      been updated to that version.
* Sun Jun 28 2020 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 48.0.0
    New features and enhancements:
    * mkvmerge: AC-3: file identification will report AC-3 tracks
      encoded in Dolby Surround EX as codec "AC-3 Dolby Surround
      EX".
    * MKVToolNix GUI: multiplexer: on new installations the GUI
      will now recognize all known ISO 639-2 language codes in file
      names by default instead of only the top 100 of languages by
      native speakers.
    * MKVToolNix GUI: multiplexer: on new installations the list
      of "often used languages" will by default only contain
      certain agnostic ones ("multiple languages", "no linguistic
      content", "reserved for local use", "uncoded languages"),
      "English" and the default user interface language. The "list
      of spoken languages by native speaks" isn't used anymore.
    * MKVToolNix GUI: header editor: added an option to remove all
      attachments to the tree context menu.
    * MKVToolNix GUI: while the GUI is running it will remember
      the last page that was selected when the preferences dialog
      is closed. Upon re-opening the preferences that page will be
      selected by default.
    Bug fixes:
    * mkvmerge: fixed a segmentation fault when exiting
      prematurely due to write errors such as the destination
      having run out of space.
    * mkvmerge: DTS: fixed wrong channel count for DTS tracks with
      XCh extensions.
    * mkvmerge: MPEG TS reader: fixed detecting h.264/AVC and
      h.265/HEVC tracks that consist of only a single frame.
    * mkvmerge: MPEG TS reader: fixed handling of unbounded PES
      sizes for tracks that consist of only a single PES packet.
    * mkvmerge: MPEG TS reader: PGS subtitle tracks are now exempt
      from the "detect bogus subtitle timestamps" heuristic which
      could lead to some PGS subtitles not being timestamped
      correctly. Symptoms were that they were shown at the wrong
      time or that they were shown indefinitely.
    * mkvmerge: MPEG TS reader: when reading MPLS playlists the
      start timestamps of a play items were handled wrong: all the
      timestamps of packets read were compared to that start
      timestamp, dropping those packets whose timestamps were
      smaller than the play item's start timestamp. The correct
      behavior is to accept all packets as soon as the first one
      with a timestamp equal to or larger than the play item's
      start timestamp is encountered. This could result in PGS
      subtitle entries located right at the start of the play item
      being garbled/lost as they consist of multiple PES packets
      for which some timestamps are often slightly smaller.
    * mkvmerge: MPEG TS reader: when reading MPLS playlists
      mkvmerge will no longer read the whole M2TS files they
      reference, processing only the packets lying inside the
      timestamp range given by the playlists's play item's start &
      end timestamps. Instead mkvmerge will use the index
      information present in corresponding clip information (CLPI)
      files in order to seek to the nearest file position of the
      play item's start timestamp. Additionally mkvmerge will
      simply stop processing a file once the end timestamp is
      seen. This change greatly speeds up processing files from
      which only small portions must be read.
    * mkvmerge: WavPack: fixed support for files created by v5 of
      the program. Checksums, DSD audio data and non-standard
      sampling rates are handled correctly.
    * MKVToolNix GUI: multiplexer: fixed the cursor being
      positioned wrong after entering or pasting characters that
      aren't allowed in file names into the "destination file"
      control.
    Build system changes:
    * libEBML v1.4.0 and libMatroska v1.6.0 are now required.
    Other changes:
    * The source code repository's main development branch was
      renamed to `main`.
* Tue Jun 02 2020 Michel Normand <normand@linux.vnet.ibm.com>
  - Add _constraints file to avoid build error for ppc64/ppc64le
* Sat May 30 2020 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 47.0.0
    New features and enhancements:
    * mkvmerge: chapters: mkvmerge can now read chapters from DVDs
      if the user specifies the path to a DVD folder structure via
      the `--chapters …` parameter. By default chapters from the
      first title will be imported. This can be changed by append
      `:<title number>` to the file/directory name in the
      `--chapters …` argument, e.g. `--chapters
      /srv/dvds/BigBuckBunny/VIDEO_TS:3`. This feature requires
      mkvmerge to have been built with the `libdvdread` library.
    * mkvmerge: added `--engage append_and_split_flac` that
      enables mkvmerge to append and split FLAC tracks, restoring
      pre-v45 behavior. The resulting tracks will be broken: the
      official FLAC tools will not be able to decode them and
      seeking will not work as expected.
    * MKVToolNix GUI: multiplexer: added support for mkvmerge's
      new support for reading chapters from DVDs if both have been
      built with the `libdvdread` library.
    * MKVToolNix GUI: multiplexer: when deriving languages from
      file names the GUI will now look for simplified language
      names instead of the full ones (e.g. instead of looking for
      "Greek, Modern (1453-)" it would simply look for "Greek").
    * MKVToolNix GUI: multiplexer: the options in the "additional
      command-line options" dialog are now sorted alphabetically.
      Additionally the `--append-mode` option has been added as
      one of the only missing global options.
    * MKVToolNix GUI: chapter editor: the chapter editor can now
      read chapters from DVDs if MKVToolNix has been built with
      the `libdvdread` library.
    * MKVToolNix GUI: header editor: added an option in the
      preferences for displaying all date & time values in UTC
      instead of the local time zone.
    Bug fixes:
    * all: fixed a crash when using the `MTX_LOGGER=file` syntax
      for logging debug messages without specifying a file name to
      log to. It will now log to a file called
      `mkvtoolnix-debug.log` in the system's default temporary
      directory, as initially intended.
    Build system changes:
    * The `libdvdread` library will be used if found via
      `pkg-config`. If it is found, support for reading chapters
      from DVDs will be enabled in `mkvmerge` and the MKVToolNix
      GUI.
    * Boost's Date/Time, Lexical Cast, Range, Range Adaptors,
      Tri-Bool, Variant libraries are not used anymore.
    * MKVToolNix now requires a C++ compiler & standard library
      that support the following features of the C++17 standard:
      "`std::variant`", "`std::gcd`". For the GNU Compiler
      Collection (gcc) this means v7 or newer; for clang it means
      v4 or newer — the same versions required by earlier
      MKVToolNix versions.
    * MKVToolNix now requires version 6.1.0 of fmtlib or later for
      the `fmt::to_string` function and bugfixes to the formatting
      of floating point numbers. If a system-wide version is
      installed that's older, the bundled copy will be used.
* Fri May 01 2020 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 46.0.0
    New features and enhancements:
    * mkvmerge: when splitting, the placeholder `%c` can be used
      in the destination file name. It'll be replaced by the name
      of the first chapter in the file. Implements #2791.
    * mkvmerge: when reading MPLS playlists mkvmerge will include
      a tag named `SOURCE_ID` in the track's statistics tags that
      conveys the fact that the source was a Blu-ray and what the
      track's ID was in the source container. When reading Matroska
      file existing `SOURCE_ID` tags will be kept. The format used
      is the same format MakeMKV uses. Implements #2774.
    * mkvmerge: for audio-only files mkvmerge will now write a cue
      entry every 500ms instead of every 2s.
    * MKVToolNix GUI: job actions: split up the option "execute
      when the job finishes successfully or with warnings" into two
      separate options: "…when finishes successfully" and "…when
      exits with warnings". Implements #2798.
    Bug fixes:
    * mkvmerge: Matroska reader: when regenerating UIDs for
      chapters mkvmerge will now fix referencing tag chapter UID
      targets to have the same values. Fixes #2804.
    * mkvmerge: MP4 reader: fixed a crash that could potentially
      happen while trying to identify H.265/HEVC tracks.
    * mkvmerge: MP4 reader: when reading H.265/HEVC tracks without
      a frame offset table (`ctts` atom) present, mkvmerge did not
      parse the `hevcC` structure correctly in certain cases,
      causing no video frames to be output at all or the output not
      being playable. This fixes #2782, a bug introduced in v45.
    * mkvmerge: MPLS handling/MPEG TS reader: timestamp
      restrictions as given in an MPLS file were only honored for
      the first play item, not for subsequent play items. For those
      play items the whole referenced file was always copied. Part
      of the fix of #2789.
    * mkvmerge: MPLS handling/MPEG TS reader: under certain
      circumstances mkvmerge copied one frame too many before
      switching to the next play item. Part of the fix of #2789.
    * mkvmerge: for audio-only files cues will only be created for
      I frames (important for e.g. TrueHD where decoding can only
      start on a sync frame). Fixes #2790.
    * MKVToolNix GUI: fixed a crash that happened when closing the
      preferences after having closed at least one multiplexer tab.
      Fixes #2785.
* Sat Apr 04 2020 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 45.0.0
    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: multiplexer: if the file identification
      fails due to a JSON parser error, the output generated by
      `mkvmerge` will be output to `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.
    * 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 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.
* Mon Mar 09 2020 aloisio@gmx.com
  - Update to version 44.0.0
    New features and enhancements:
    * MKVToolNix GUI: header editor: the attachments can now be
      reordered via drag & drop. Implements #2753.
    Bug fixes:
    * mkvmerge: Matroska reader: when encountering certain errors
      in the track headers such as the codec ID not being present
      mkvmerge will simply skip those tracks instead of exiting
      with an error. Fixes #2737.
    * MKVToolNix GUI: multiplexer: the "ask before overwriting"
      functionality did not look for the correct file names when
      splitting was active. Fixes #2741.
* Mon Jan 27 2020 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 43.0.0
    New features and enhancements:
    * MKVToolNix GUI: using one of the command line options
      `--info`, `--edit-headers` or `--edit-chapters` will make
      the GUI select the corresponding tool on startup even if no
      further file name is given. Implements #2723.
    * MKVToolNix GUI: multiplexer: added a setting in the
      preferences for changing the location of the MediaInfo
      executable for when the user accidentally selected the wrong
      one.
    Bug fixes:
    * mkvmerge: AVC/h.264 parser: the order of the NALUs before
      each key frame was sometimes wrong: mkvmerge wrote SPS & PPS
      after SEI NALUs. Now SPS & PPS NALUs are always written
    before the other NALUs. Patch by Torsten Hauska. Part of the
    implementation of #2709 and part of the fix of #2250.
    * mkvmerge: AVC/h.264 parser: when additional SPS or PPS NALUs
      (with IDs that haven't been seen so far) are found
      mid-stream, mkvmerge will prepend all following key frames
      with all current valid SPS & PPS NALUs (just like when SPS &
      PPS NALUs are overwritten mid-stream). Part of the fix of
      [#2250].
    * mkvmerge: MPEG TS reader: fixed detection of MPEG-1/2 video
      tracks consisting of very few frames. Fixes #2732.
    * mkvmerge: Ogg Opus reader: fixed the handling of Ogg Opus
      streams that contain a just one Ogg page (`mkvmerge` aborted
      with an exception). Fixes #2722.
    * MKVToolNix GUI: multiplexer: dragging & dropping XML files
      with chapters or tags to the GUI's window was broken in v42.
      Instead of adding the file names to the appropriate input
      boxes the GUI was running mkvmerge for file identification
      purposes which then failed. Fixes #2718.
* Thu Jan 02 2020 Luigi Baldoni <aloisio@gmx.com>
  - Update to version 42.0.0
    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.

Files

/usr/bin/ac3parser
/usr/bin/base64tool
/usr/bin/bluray_dump
/usr/bin/checksum
/usr/bin/diracparser
/usr/bin/ebml_validator
/usr/bin/hevcc_dump
/usr/bin/pgs_dump
/usr/bin/vc1parser
/usr/bin/xvc_dump


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