Hey y’all.

MKVToolNix v84 is out, with a handful of bug fixes & a handful of enhancements. The usual stuff.

You can download the source code or one of the packages. The Windows packages and the Linux AppImage are available already. The other Linux packages are still being built and will be available over the course of the next couple of hours.

Please note that due to technical reasons I haven’t been able to build the macOS disk image yet. I don’t know when I’ll be able to fix it.

Here are the NEWS since the previous release:

New features and enhancements

• mkvmerge: added a new file-specific option --regenerate-track-uids. When used for Matroska files, mkvmerge will generate new random track UIDs instead of keeping existing track UIDs. This is done automatically when a Matroska file was created by MakeMKV.
• mkvmerge: MP4 reader: added support for FLAC in MP4. Implements #3692.
• MKVToolNix GUI: multiplexer: the “Attachments” tab’s title will now include the total number of attachments (both from source files & to newly attach). Implements #3693.
• translations: added a Norwegian Bokmål translation of the programs by Roger Knutsen (see AUTHORS).

Bug fixes

• configure: when called with --disable-gui the build system still ran the check for the GUI libraries & failed if they weren’t found. This check is now skipped when the option is given. Fixes #3680.
• mkvmerge: several color-related track header properties were parsed into & stored as a wrong integer type internally. This could result in wrong values being copied when very large values were present in source files, or in error messages when very large values were used as command-line parameters.
• MKVToolNix GUI: multiplexer: the keyboard shortcuts from the “modify selected tracks” sub-menu didn’t work right after opening a file. They only started working after opening the “multiplexer” menu. Fixes #3681.

Build system changes

• Release v8.0.0 of the fmt library is now required. If not found, the bundled copy will be used.
• A C++20 compatible compiler is now required for several but certainly not all C++20 features. g++ v10 & clang++ v10 should suffice.

Have fun 😁

Heyoooo!

Here’s a tiny release with two small new features. Mostly it’s so small because we’ve spent quite a lot of time improving & reworking two underlying libraries libEBML & libMatroska that MKVToolNix uses, among with required adjustments to MKVToolNix’s source code as well.

You can download the source code or one of the binaries. 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:

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.

Have fun 😁

Heya everyone!

Happy new year! Good time for a new release, I guess. This one with lots of bug fixes & enhancements. One important change is that Qt 5 is not supported anymore. The program now requires Qt 6.2 or newer for compilation.

You can download the source code or one of the binaries. 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:

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.

Have fun 😁

Heyo!

Here’s MKVToolNix v81, the latest & greatest etc. etc. A lot of work went into improving & finishing the support for Dolby Vision. Apart from that there are several usability improvements & bug fixes, as usual.

You can download the source code or one of the binaries. The Windows 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.

Please note that I don’t have macOS binaries yet, and due to issues with my build machine I cannot give an ETA for them either.

Here are the NEWS since the previous release:

New features and enhancements

• mkvmerge: MPEG transport stream reader: HEVC/H.265: added support for reading single-layer Dolby Vision from Annex B type bitstream read from MPEG transport streams. Partially implements #3113.
• mkvmerge: MPEG transport stream reader, HEVC/H.265 elementary stream reader: added support for reading dual-layer Dolby Vision with both the base & enhancement layers in the same track from Annex B type bitstreams in MPEG transport files & elementary stream files. Implements #3126.
• mkvmerge: MPEG transport stream reader: HEVC/H.265: implemented combining dual-layer Dolby Vision with base & enhancement layers in different tracks. Implements #3127.
• MKVToolNix GUI: multiplexer: added a new option in the preferences for always enabling ‘forced’ subtitle tracks. A subtitle track is considered to be ‘forced’ if: the corresponding property is set in the source file; the track’s name contains the word ‘forced’ (in English); deriving the ‘forced display’ flag from file names is active & the file name matches the corresponding pattern. The option is disabled by default. Implements #3627.
• MKVToolNix GUI: multiplexer: the functionality for detecting file name sequences when adding files can now recognize the patterns used by GoPro’s cameras for chaptered video files. Implements #3633.
• xyzvc_dump: the end position of the current NALU will be output in non-portable format as well.
• xyzvc_dump: HEVC: the tool will now also output the inner NALU type of Dolby Vision NALUs (unspec62 and unspec63).

Bug fixes

• mkvmerge: when the user requests processing be stopped after the video ends mkvmerge will now take appending files into account properly. It won’t stop processing unconditionally after the first file ends anymore. Fixes #3618.
• mkvmerge: AV1 handling in readers: the readers will now provide the pixel dimensions to the AV1 packetizer as early as possible, just like for other video packetizers. That way the pixel dimensions are available for calculating the display dimensions when command-line options such as --aspect-ratio & --aspect-ratio-factor are used. Before the change the calculation was done based on initial pixel dimension values of 0x0, resulting in display dimensions of 0x0, too. Fixes #3611.
• mkvmerge: HEVC/H.265 packetizer: when reading & appending HEVC/H.265 from Matroska, MP4/MOV or FLV files the first frame of all the appended files was sometimes dropped, resulting in broken video at the point where video is appended. Fixes #3479.
• mkvmerge: MPEG transport stream reader: when reading MPEG transport streams from Blu-rays the four-byte long TP_extra_header structure in front of the transport packets are now skipped properly. Before the fix a stray byte with value of 0x47 inside that TP_extra_header structure could have thrown off the detection of where the transport packets start, leading to mkvmerge dropping a few audio and/or video frames at the start of the file. Fixes #3632.
• mkvextract: AAC extractor: when an invalid program config element in the GA-specific config element is encountered, the program config element will be disregarded, which avoids mkvextract aborting with an exception. Fixes #3606.
• xyzvc_dump: fixed the tool aborting with an exception when the last NALU in an Annex B type file was shorter than four bytes.

Other changes

• AVC & HEVC dumper development tool: the tool has been renamed from xvc_dump to xyzvc_dump as xvc is an abbreviation for an existing video codec (Extreme Video Coding), and the tool has nothing to do with that codec.

Have fun! 😁