Moritz Bunkus heeft versie 82 van MKVToolNix uitgebracht. Met dit programma kunnen matroskabestanden worden bekeken, bewerkt en geconverteerd. Zo kunnen geluidssporen en ondertiteling worden toegevoegd, verwijderd of juist als standaard worden ingesteld. MKVToolNix is een verzameling afzonderlijke commandlinetools, maar er wordt ook een grafische gebruikersinterface meegeleverd. Downloads zijn beschikbaar voor Windows, macOS en diverse Linux-distributies. In deze uitgave zijn de volgende veranderingen en verbeteringen aangebracht:
New features and enhancementsBug fixes
- 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_idsthat 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
mkvpropeditit’s calledalpha-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.
Build system changes
- 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
EbmlDummyelements as well as elements that don’t have a value set) to the output file, which caused the underlyinglibebmllibrary to abort. These types of broken elements are now filtered out.
- Qt 5 is no longer supported. Qt 6 is now required for building MKVToolNix. This implies that the options to
configurerevolving 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
qmakecan now be found inconfig.log. See #3649.- Qt 6 detection:
configurewill 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:
configurewill now fail to detect Qt 6 if the ‘multimedia’ module is not found byqmake(e.g. due to development packages not being installed). See #3649.- The bundled
fmtlibrary was updated to v10.1.1.
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