MKVToolNix v46.0.0 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 46.0.0 "No Deeper Escape" 2020-05-01

## 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.
* MKVToolNix GUI: macOS: changed the default of the "elide tab header labels"
  feature introduced in v45 from "no" to "yes" to mirror how versions before
  v45 behaved on macOS.

# Version 45.0.0 "Heaven in Pennies" 2020-04-04

## 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: Windows: debug output sent via Qt's to Windows' debugging
  facility will use a more verbose message format including the application
  name, making it easier to filter for in SysInternal's "Debug View" utility.
* MKVToolNix GUI: multiplexer: if the file identification fails due to a JSON
  parser error, the output generated by `mkvmerge` will be output via Qt's
  debugging facility (viewable with SysInternal's "Debug View" utility on
  Windows; on other systems it's output on `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.
* mkvpropedit: Windows: mkvpropedit wasn't caching when reading the file to
  modify, slowing down operations such as adding track statistics tags
  considerably. Fixes #2761.
* 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 using the "show command line" menu option
  on Windows the path to the `mkvmerge` executable was shown with forward
  slashes instead of backslashes. This is a purely cosmetic fix as Windows
  supports both forward and backward slashes.
* 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.

官网地址：https://mkvtoolnix.download

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

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