MKVToolNix v59.0.0 Final x86/x64 多语言中文正式版-MKV封装工具

MKV 是一种优秀的多媒体容器格式，它可把多种不同编码的视频及16条或以上不同格式的音频和语言不同的字幕封装到一个 MKV 文件中，而 MKVToolNix 是一款免费开源的 MKV 编辑器和工具集，能够合成、编辑 Matroska MKV 文件。

MKVToolNix 包含了以下几个 MKV 专用处理工具：
*mkvmerge：将多媒体文件封装、合并、混流为 MKV 文件；
*mkvinfo：输出 MKV 文件组件和编码信息；
*mkvextract：从 MKV 文件中提取视频、音频和字幕轨道；
*mkvpropedit：直接修改现有 MKV 文件的属性而无需重混流；
*mmg：mkvmerge GUI，并包含了章节编辑器和头部编辑器。

MKVToolNix 中的 Mkvmerge GUI 允许你导入多个视频、音频、字幕轨道，混流合并一个新的 MKV 文件，并可以设置导出视频的宽高比、显示比例、帧频等等。

MKVToolNix 中的 MKVExtractGUI 则可以从现有的 MKV 文件中提取其中的一个或多个视频、音频或者字幕信息，是专业的 MKV 分离工具。

MKVToolNix 是专用的 MKV 剪辑工具，提供了4种 MKV 切割模式，包括按尺寸、按时长、按特定时间码和按分段，都是无损剪辑、分割 MKV 过程，能够同步切割视频、音频和字幕轨道。比之前介绍的所有支持 MKV 分割的工具都要好用，包括 Boilsoft Video Splitter、SolveigMM AVI Trimmer 等。

更新记录：

# Version 59.0.0 "Shining Star" 2021-07-10

## 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. Part of #3139.
* 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. Implements
  #3143.
* 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. Implements
  #2366.
* 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. Implements
  #2866.
* 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. Part of #3139.
* 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. Fixes #3137.
* mkvmerge, mkvinfo, MKVToolNix GUI's info tool: only on Windows: displaying
  dates before 1970-01-01 00:00:00 UTC or after 2038-01-19 03:14:08 UTC was
  broken. Note that the header editor was not affected. Fixes #3148.
* MKVToolNix GUI: only on 64-bit Windows: under certain conditions, the 64-bit
  Windows binaries crashed when opening dialog windows. Even though the
  underlying bug hasn't been identified, the investigation showed that
  building it with newer versions than 10.2.0 of the mingw/gcc cross-compiler
  enabled the crashes, while binaries built with 10.2.0 were fine. This
  affected v57 and v58 which were built with gcc versions 10.3.0 and 11.1.0
  respectively. For the time being I've switched back to building Windows
  binaries with gcc 10.2.0. Fixes #3132 & #3133.
* 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). Fixes #3144.
* 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. Fixes #3155.


## 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.

官网地址：https://mkvtoolnix.download

官网更新记录： https://mkvtoolnix.download/doc/NEWS.md

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