Thema: MKVToolnix ...

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Changelog

## 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. Implements #3272.
* 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. Part of the implementation of #3253.
* 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). Part of the implementation of #3253.
* 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. Implements #3273.
* MKVToolNix: header editor: the selected track or attached file can now be
  moved up & down with the keyboard shortcuts `Ctrl+Up` & `Ctrl+Down`
  respectively. Part of the implementation of #3253.

## Bug fixes

* mkvmerge: Matroska reader: DVB subtitle tracks with a codec private data
  size of more than five bytes are accepted now, too. Fixes #3258.

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Changelog

    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. Implements #3276.
    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. This is an alternative to the feature requested in #3283.

    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. Fixes #3290.
    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. Fixes #3274.
    MKVToolNix GUI: multiplexer: the chapter name template will now be passed to mkvmerge` if a chapter file is selected on the "output" tab. Fixes #3295.

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Changelog

## 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`. Part of the implementation of #3307.
* all: IETF BCP 47/RFC 5646 language tags: grandfathered language tags are now
  supported. Part of the implementation of #3307.
* all: IETF BCP 47/RFC 5646 language tags: all deprecated subtags from the
  IANA language subtag registry are now supported. Part of the implementation
  of #3307.
* all: IETF BCP 47/RFC 5646 language tags: all lists of valid subtags have
  been updated from their respective authoritative sources. Part of the
  implementation of #3307.
* 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'. Part of the implementation of #3307.
* 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. Part of the implementation of #3307.
* all: IETF BCP 47/RFC 5646 language tags: all language codes reserved for
  private/local use (`qaa`–`qtz`) are now supported. Part of the
  implementation of #3307.
* 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`). Part of the implementation of
  #3307.
* 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. Part of the implementation of #3307.
* MKVToolNix GUI: IETF BCP 47/RFC 5646 language tags: ISO 639-3 and 639-5
  languages will now be used by default. Part of the implementation of #3307.
* 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. Part of the implementation of #3307.
* 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. Part of the implementation of
  #3307.
* 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. Part of the implementation of #3307.
* 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. Part of the
  implementation of #3307.
* 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. Part of the implementation of #3307.
* 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. Part of the implementation/fix of #3307.
* build system & MKVToolNix GUI: fixed detecting the presence of & the
  compilation with the multimedia module of Qt version 6.2.0 and newer.
* build system: fixed compilation on Unices other than Linux & macOS
  (e.g. FreeBSD). Fixes #3316.
* MKVToolNix GUI: job queue: fixed compiling in the audio player code for the
  the "play audio" end-of-job action. Fixes #3303.
* 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. Fixes #3302.

## Build system changes

* build system: the provided Windows binaries are now compiled with Qt 6. A
  drawback is that certain audio formats aren't supported anymore by Qt for
  the "end of job" sound notification playback, notably the Ogg file format &
  the Vorbis audio codec. MKVToolNix therefore now ships Opus-in-WebM files
  for the same purpose.
* 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.

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Changelog

## 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. Implemented for #3268.
* 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. Fixes #3332.
* 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. Part of the fix of #3325.
* 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. Part of the fix of #3325.
* MKVToolNix GUI: the GUI now uses almost all SVG icons, allowing proper
  scaling even for scaling factors such as 125%. Fixes #3335.
* 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. Fixes #3346.

## Build system changes

* Qt's SVG library is now required.

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Changelog

    Important notes:

    all: the spelling of "colour" was changed to "color" throughout all programs to match the use of American English spelling in MKVToolNix. This not only affects documentation and user interface controls, but also program options for mkvmerge & mkvpropedit. Both programs will continue to accept the British English spelling of their respective options indefinitely. One breaking change is that the property names in mkvmerge's JSON identification mode have also been changed to American English spelling. As those properties have only been introduced in release v68, this seems like a small enough window to make such a change.

    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. Implements #3362.
    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. Implements #3359.
    MKVToolNix GUI: job queue: the job queue can now be sorted by clicking on the column headers. Part of the implementation of #3365.
    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. Part of the implementation of #3365.

    Bug fixes:

    build system: fixed compilation with fmt v9. Fixes #3366.
    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. Fixes #3363.
    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.

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    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 KVTOOLNIX_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`. Implements
    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.
    KVToolNix 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.

    Build system changes:

    Several merge requests where accepted that improve compilation on MSYS2 on Windows. Note that this build type isn't supported.

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A mkvextract GUI in MKVToolnix that enables you to extract tracks, attachments or tags from MKV files and save them in various formats.

Freeware

Whats new:>>

Fix calculating delays from mkvinfo.

https://sourceforge.net/projects/gmkvextractgui/

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Changelog

## New features and enhancements

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

## Bug fixes

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

## Build system changes

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

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Changelog

## 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.

## Build system changes

* bug fix: configure accidentally tested for libEBML ? 2.0.0 & libMatroska ?
  2.0.0, even though the actual requirements are 1.4.4 & 1.7.1 respectively.

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Whats new:>>

    Minor code optimizations
    Add final Trim when generating the output filename

https://sourceforge.net/projects/gmkvextractgui/

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Changelog

# Version 74.0.0 "You Oughta Know" 2023-02-12

## 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. Part of the
  implementation of #3470.

## 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. Fixes #3058.
* 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. Fixes #3480.
* 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. Fixes #3462.
* 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. Part of the fix of #3470.
* mkvextract: SRT extraction: whitespaces will not be stripped from the start
  & end of the whole entry anymore. Part of the fix of #3470.
* 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. Fixes #3469.
* 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`.

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    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). Implements #2208, #2242, #2613, #3000, #3243, #3418 and possibly others.

    Bug fixes:

    All: switched back to using `boost::filesystem` functions for creatingdirectories 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. Fixes #3483.
    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. Fixes #3489.
    MKVToolNix GUI: the GUI could abort with an exception on startup while looking for the `mkvmerge` or `mediainfo` executables due to inaccessible folders. Fixes #3481.
    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. Fixes #3486.
    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. Fixes #3487.

    Other changes:

    Mkvpropedit, GUI's header editor: removed support for the deprecated "minimum cache" & "maximum cache" track header elements.

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## Important notes

* mkvmerge: removed the option `--blockadd`. Removing block additional data is
  not possible anymore, as it is often required for proper decoding. Part of
  the implementation of #3511.

## 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. See #3510.
* 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. Part of the implementation of #3511.
* 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. Part of the implementation of #3511.
* 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. Part of the implementation of #3475.
* 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. Part of the implementation of
  #3475.
* 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. Part of the implementation
  #3506.
* MKVToolNix GUI: only on Windows: the GUI now uses Qt's "Fusion" style
  instead of the deprecated "Windows Vista" style. The advantage is that as of
  Qt 6.5 the "Fusion" style properly supports Windows 10's & 11's dark
  application mode. The Windows binaries are now built with said Qt
  version. Therefore the option to disable the dark mode has been
  removed. Fixes #3264 and likely others.
* 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. Implements #3512.
* 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. Implements #3513 & others.
* 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. Fixes #3508.
* 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. Fixes #3484.
* 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. Part of the
  implementation of #3511.
* 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. Part of the implementation of #3511.
* mkvpropedit: fixed replacing chapters & tags in files that don't contain
  tracks. Fixes #3498.

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## 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. Implements #3545.
* 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. Implements #3533.
* 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. Implements
  #3535.
* 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. Implements #3554.
* MKVToolNix GUI: macOS: when you install the application from the DMG it'll
  register itself as an alternate handler for its supported file types. This
  allows the use of the "Open with" context menu action in Finder.
* 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. Part of the fix for #3528.

## Bug fixes

* Fixed compilation with fmt v10.0.0.
* mkvmerge: fixed several instances of wrong format strings for `fmt::format`
  used in debug messages. Fixes #3548.
* 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. Fixes
  #3534.
* mkvmerge: Windows: when writing to a network share connected via SMB1
  `mkvmerge` was aborting with a error about `create_directory() failed` with
  existing directories. This was due to a bug in recent versions of the
  Boost.Filesystem library. The Windows version of MKVToolNix will be built
  with Boost 1.82.0 from now on which includes the fix. Fixes #3547.
* 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. Part of the fix of
  #3532.
* 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. Part of the fix of
  #3532.
* 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. See also
  #3554.
* 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.
* MKVToolNix GUI: Windows: the GUI will now always use its own implementation
  of light & dark palettes instead of relying on Qt. This circumvents two
  issues with the palette support in Qt 6.5.0:
  1. if Windows 11's dark application mode is active, links were displayed in
     a hard-to-read dark blue.
  2. for unknown reasons the the dark palette was not chosen on some Windows
     11 installations even though Windows 11's color mode was set to "dark".
  This is a workaround for #3528.

## 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. On
  Windows & macOS the GUI will look for the file in
  `<folder_with_executables>/data/qt_resources.rcc`, and 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.

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Changelog

    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. See #3557.
    AppImage: the AppImage is now built on AlmaLinux 8 with Qt 6.5.1. This means that the minimum glibc version this AppImage is compatible with has also been bumped, to v2.28. The oldest Debian coming with this version is Debian10 "Buster"; for Ubuntu it's 18.10 "Cosmic Cuttlefish".
    Windows installer: the installer will now remove the file`dataportable-app` if it's present in the installation directory as its presence would signal to the app to run in portable mode, requiring write access to its base directory. This fixes some installation issues that could occur when a user extracted a portable app archive into a folder like `C:Program FilesMKVToolNix`. Also added an installation check for the same issue. See #3558.

    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 neithe 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. Workaround for #3574.
    mkvmerge: sorting tracks by type did not work properly when some tracks weren't copied. Part of the fix of #3567.
    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. Part of the fix of #3567.
    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. Part of the fix of #3556 & #3561.
    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. Part of the fix of #3556 & #3561.
    MKVToolNix GUI: header editor: fixed the application crashing whenever you change a property below the "segment information" node. This bug was introduced in v77. Fixes #3556.
    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. Fixes #3557.
    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. Part of the fix of #3557.
    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. Fixes #3573.
    AppImage: fixed the GUI resources (e.g. icons) not being found.
    AppImage: the Qt plugins required for using compose key/dead keys are now included. Fixes #3577.

    Build system changes:

    The compilation database (`compile_commands.json`) is now always built.The variable `BUILD_COMPILATION_DATABASE` is not evaluated anymore.

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