MKVToolNix v83.0.0 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 83.0 "Circle Of Friends" 2024-03-10

## New features and enhancements

* translations: added a Belarusian translation of the programs & the man pages
  by prydespar (see `AUTHORS`).
* mkvmerge, MKVToolNix GUI's chapter editor: added support for reading
  chapters from ffmpeg metadata files. Implements #3676.
* MKVToolNix GUI: added a new action type for execution after jobs or the
  queue finishes: quitting MKVToolNix. Implements #3677.

## Build system changes

* The bundled `fmt` library was updated to v10.2.1.

## Other changes

* Tons of changes were made to support the latest development versions of
  libEBML & libMatroska.

# Version 82.0 "I'm The President" 2024-01-02

## New features and enhancements

* mkvmerge: Matroska reader: the "video alpha mode" track header property will
  be copied to the output file if present. Part of the implementation of
  #3643.
* mkvmerge: Matroska reader: the "video alpha mode" track header property will
  be reported in JSON identification mode as the track property
  `alpha_mode`. Part of the implementation of #3643.
* mkvmerge: Matroska reader: the file's timestamp scaling factor will be
  reported in JSON identification mode as the container property
  `timestamp_scale`.
* mkvmerge: MPEG transport stream reader: teletext subtitles intended for
  hearing impaired people (type 0x05) are now marked as such via the
  appropriate flag in the track headers.
* mkvmerge: file identification: the JSON identification output schema version
  has been bumped to 19.
* mkvmerge: added a new hack `always_write_block_add_ids` that can be used as
  a workaround for players that don't support the handling of missing "Block
  Addition ID" sub-elements of "Block More" elements in block additions
  properly. These are used for e.g. alpha channel data in VP9 with a "Block
  Addition ID" value of 1, which is also its default value. Workaround for the
  player issues listed in #3643.
* mkvinfo: added support for the "video alpha mode" track header element. Part
  of the implementation of #3643.
* mkvpropedit, MKVToolNix GUI's header editor: added support for the "video
  alpha mode" track header property. In `mkvpropedit` it's called
  `alpha-mode`. Part of the implementation of #3643.
* MKVToolNix GUI: multiplexer: when adding files the GUI can automatically
  enable the "hearing impaired" flag for audio and subtitle tracks if the file
  name contains the word "cc" or "sdh" delimited by certain characters
  (configurable). This feature is turned on by default. Implements #3648.
* MKVToolNix GUI: multiplexer: when scanning for Blu-ray playlists the GUI
  will now ignore playlists that are likely meant for menus. Currently the GUI
  considers this to be the case when a playlist contains the same item at
  least five times. This behavior can be turned off in the
  preferences. Implements #3658.

## Bug fixes

* mkvmerge: MPEG transport stream reader: fixed a crash introduced in v81 that
  occurred when there was at least one PCM track that wasn't copied from the
  transport stream file. Fixes #3645.
* mkvmerge: when reading data from Matroska files damaged in a specific way,
  mkvmerge ended up trying to write various types of elements that aren't
  allowed to be written (so-called `EbmlDummy` elements as well as elements
  that don't have a value set) to the output file, which caused the underlying
  `libebml` library to abort. These types of broken elements are now filtered
  out.

## Build system changes

* Qt 5 is no longer supported. Qt 6 is now required for building
  MKVToolNix. This implies that the options to `configure` revolving around
  configuring Qt 5 or choosing between the two have been removed
  (e.g. `--disable-qt6`).
* Qt 6 detection: if detection fails, error messages from `qmake` can now be
  found in `config.log`. See #3649.
* Qt 6 detection: `configure` will only consider Qt 6.2.0 or newer, not 6.0.x
  or 6.1.y anymore, due to the lack of support for the multimedia module.
* Qt 6 detection: `configure` will now fail to detect Qt 6 if the 'multimedia'
  module is not found by `qmake` (e.g. due to development packages not being
  installed). See #3649.
* The bundled `fmt` library was updated to v10.1.1.

官网地址：https://mkvtoolnix.download

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

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