MKVToolNix v67.0.0 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 67.0.0 "Under Stars" 2022-04-10

## 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.

官网地址：https://mkvtoolnix.download

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

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