MKVToolNix 42.0.0 (64-bit)

What's new in this version:

New features and enhancements:
mkvmerge: added an option for creating byte-identical files:
- `--deterministic <seed>`
- mkvmerge: Matroska reader: mkvmerge will remove the `icpf` atom headers if they're present in frames read from Matroska files
- mkvmerge: MP4 reader: ALAC tracks: the number of channels, sampling frequency and bit depth are now taken from the bitstream in order to fix
bogus values on the container level
- mkvpropedit: when changing track UIDs the referring elements in existing chapters & tags will be updated automatically, too
- mkvinfo: when the option `-p`/`--hex-positions` is used, element positions will be output regardless of the verbosity level
- mkvinfo: added the option `-P`/`--positions` for showing the position of each element in decimal regardless of the verbosity level used
- mkvinfo: added the option `-o`/`--continue` for continuing processing when the first cluster is encountered regardless of the verbosity level used
- mkvinfo: added the option `-a`/`--all` for outputting all sub-elements (even cues & seek head entries) and not stopping at the first cluster regardless
of the verbosity level used
- MKVToolNix GUI: multiplexer: added an option in the preferences for disabling adding cover images from Blu-ray discs
- MKVToolNix GUI: multiplexer: added mkvmerge's new `--deterministic` option in the "additional command-line options" dialog
- MKVToolNix GUI: header editor:: when changing track UIDs the referring elements in existing chapters & tags will be updated automatically, too

Bug fixes:
- mkvmerge: HEVC ES parser: fixed a bug in the slice parser calculating the size of a field which in turn could have led to the slice's type being read wrong. Patch by Torsten Hauska
- mkvmerge: Matroska reader: fixed a segmentation fault when trying to read a file that uses header removal compression but no removed bytes are present in the track headers
- mkvmerge: MPEG elementary stream parser: fixed an invalid memory access and use of uninitialized memory that could happen under certain circumstances
- mkvmerge: RealMedia reader: fixed a division by zero when all audio timestamps were zero
- mkvmerge: RealMedia reader: fixed an invalid memory access in the video frame assembly code triggered by invalid data in the file

Build system changes:
- `std::optional` (C++17 feature) is now used instead of `boost::optional`
- `std::regex` is now used instead of `boost::regex`

Other changes:
- New man page translations into French, Italian, Russian and Chinese Traditional have been added