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Mosu · 30th May 2020, 13:58

Well hello, gentle people.

Surprisingly it's still May, even though it feels much longer since… well everything, really. Anyway, roughly four weeks since the previous release means it's a good time for another MKVToolNix release.

v47 contains a couple of new enhancements and few bug fixes. However, under the hood big chunks of the source code was changed in an ongoing effort of switching from using Boost libraries to the C++ standard library. For end users this replacement doesn't mean much — apart from the usual danger of accidentally introducing bugs. Hopefully not too many.

For package maintainers the situation is different. There were several changes, not only due to this migration. Please read the news below carefully. Thanks.

Here are the usual links: the MKVToolNix home page, the Windows installer/portable version & macOS DMG & Linux AppImage and the source code.

The Windows and macOS binaries as well as the Linux AppImage are available already. The other Linux binaries are still being built and will be available over the course of the next couple of hours.

Here are the NEWS since the previous release:

Version 47.0.0 "Black Flag" 2020-05-30
New features and enhancements

mkvmerge: chapters: mkvmerge can now read chapters from DVDs if the user specifies the path to a DVD folder structure via the "--chapters …" parameter. By default chapters from the first title will be imported. This can be changed by append ":<title number>" to the file/directory name in the "--chapters …" argument, e.g. "--chapters /srv/dvds/BigBuckBunny/VIDEO_TS:3" This feature requires mkvmerge to have been built with the "libdvdread" library. Part of the implementation of #2808.
mkvmerge: added "--engage append_and_split_flac" that enables mkvmerge to append and split FLAC tracks, restoring pre-v45 behavior. The resulting tracks will be broken: the official FLAC tools will not be able to decode them and seeking will not work as expected.
MKVToolNix GUI: multiplexer: added support for mkvmerge's new support for reading chapters from DVDs if both have been built with the "libdvdread" library. Part of the implementation of #2808.
MKVToolNix GUI: multiplexer: when deriving languages from file names the GUI will now look for simplified language names instead of the full ones (e.g. instead of looking for "Greek, Modern (1453-)" it would simply look for "Greek").
MKVToolNix GUI: multiplexer: the options in the "additional command-line options" dialog are now sorted alphabetically. Additionally the "--append-mode" option has been added as one of the only missing global options.
MKVToolNix GUI: chapter editor: the chapter editor can now read chapters from DVDs if MKVToolNix has been build with the "libdvdread" library. Part of the implementation of #2808.
MKVToolNix GUI: header editor: added an option in the preferences for displaying all date & time values in UTC instead of the local time zone. Implements #2814.

Bug fixes

all: fixed a crash when using the "MTX_LOGGER=file" syntax for logging debug messages without specifying a file name to log to. It will now log to a file called "mkvtoolnix-debug.log" in the system's default temporary directory, as initially intended.

Build system changes

The "libdvdread" library will be used if found via "pkg-config". If it is found, support for reading chapters from DVDs will be enabled in "mkvmerge" and the MKVToolNix GUI. Part of the implementation of #2808.
Boost's Date/Time, Lexical Cast, Range, Range Adaptors, Tri-Bool, Variant libraries are not used anymore.
MKVToolNix now requires a C++ compiler & standard library that support the following features of the C++17 standard: ""std::variant"", ""std::gcd"". For the GNU Compiler Collection (gcc) this means v7 or newer; for clang it means v4 or newer — the same versions required by earlier MKVToolNix versions.
MKVToolNix now requires version 6.1.0 of fmtlib or later for the "fmt::to_string" function and bugfixes to the formatting of floating point numbers. If a system-wide version is installed that's older, the bundled copy will be used.
The bundled version of fmtlib has been updated to release 6.2.1.

Have fun

30th May 2020, 13:58	#773 \| Link
Mosu MKVToolNix author Join Date: Sep 2002 Location: Braunschweig, Germany Posts: 4,281	MKVToolNix v47.0.0 released Well hello, gentle people. Surprisingly it's still May, even though it feels much longer since… well everything, really. Anyway, roughly four weeks since the previous release means it's a good time for another MKVToolNix release. v47 contains a couple of new enhancements and few bug fixes. However, under the hood big chunks of the source code was changed in an ongoing effort of switching from using Boost libraries to the C++ standard library. For end users this replacement doesn't mean much — apart from the usual danger of accidentally introducing bugs. Hopefully not too many. For package maintainers the situation is different. There were several changes, not only due to this migration. Please read the news below carefully. Thanks. Here are the usual links: the MKVToolNix home page, the Windows installer/portable version & macOS DMG & Linux AppImage and the source code. The Windows and macOS binaries as well as the Linux AppImage are available already. The other Linux binaries are still being built and will be available over the course of the next couple of hours. Here are the NEWS since the previous release: Version 47.0.0 "Black Flag" 2020-05-30 New features and enhancements mkvmerge: chapters: mkvmerge can now read chapters from DVDs if the user specifies the path to a DVD folder structure via the "--chapters …" parameter. By default chapters from the first title will be imported. This can be changed by append ":<title number>" to the file/directory name in the "--chapters …" argument, e.g. "--chapters /srv/dvds/BigBuckBunny/VIDEO_TS:3" This feature requires mkvmerge to have been built with the "libdvdread" library. Part of the implementation of #2808. mkvmerge: added "--engage append_and_split_flac" that enables mkvmerge to append and split FLAC tracks, restoring pre-v45 behavior. The resulting tracks will be broken: the official FLAC tools will not be able to decode them and seeking will not work as expected. MKVToolNix GUI: multiplexer: added support for mkvmerge's new support for reading chapters from DVDs if both have been built with the "libdvdread" library. Part of the implementation of #2808. MKVToolNix GUI: multiplexer: when deriving languages from file names the GUI will now look for simplified language names instead of the full ones (e.g. instead of looking for "Greek, Modern (1453-)" it would simply look for "Greek"). MKVToolNix GUI: multiplexer: the options in the "additional command-line options" dialog are now sorted alphabetically. Additionally the "--append-mode" option has been added as one of the only missing global options. MKVToolNix GUI: chapter editor: the chapter editor can now read chapters from DVDs if MKVToolNix has been build with the "libdvdread" library. Part of the implementation of #2808. MKVToolNix GUI: header editor: added an option in the preferences for displaying all date & time values in UTC instead of the local time zone. Implements #2814. Bug fixes all: fixed a crash when using the "MTX_LOGGER=file" syntax for logging debug messages without specifying a file name to log to. It will now log to a file called "mkvtoolnix-debug.log" in the system's default temporary directory, as initially intended. Build system changes The "libdvdread" library will be used if found via "pkg-config". If it is found, support for reading chapters from DVDs will be enabled in "mkvmerge" and the MKVToolNix GUI. Part of the implementation of #2808. Boost's Date/Time, Lexical Cast, Range, Range Adaptors, Tri-Bool, Variant libraries are not used anymore. MKVToolNix now requires a C++ compiler & standard library that support the following features of the C++17 standard: ""std::variant"", ""std::gcd"". For the GNU Compiler Collection (gcc) this means v7 or newer; for clang it means v4 or newer — the same versions required by earlier MKVToolNix versions. MKVToolNix now requires version 6.1.0 of fmtlib or later for the "fmt::to_string" function and bugfixes to the formatting of floating point numbers. If a system-wide version is installed that's older, the bundled copy will be used. The bundled version of fmtlib has been updated to release 6.2.1. Have fun __________________ Latest MKVToolNix is v83.0 If I ever ask you to upload something, please use my file server.