Moritz Bunkus heeft versie 61 van MKVToolNix uitgebracht. Met dit opensourceprogramma kunnen matroska-bestanden bekeken, bewerkt en worden geconverteerd. Zo kunnen geluidssporen en ondertiteling worden toegevoegd, verwijderd of juist als standaard worden ingesteld. MKVToolNix is een verzameling afzonderlijke commandline-tools, 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
- all: IETF BCP 47/RFC 5646 language tags: implemented support for officially registered IANA language tag extensions.
- mkvmerge: track selection: when using language tags for selecting which tracks to keep, mkvmerge will now use component-based language tag matching instead of comparing them verbatim. This means that only those components (language, region etc.) the user specified will be required to exist and be equal. For example, if a file contains three subtitle tracks with languages
es(generic Spanish),es-MX(Spanish as spoken in Mexico) andes-ES(Spanish as spoken in Spain), the user can use--stracks esto match all three tracks or be more specific with e.g.--stracks es-MXwhich would only match one track. Similarly inverting the selection with e.g.--stracks !eswould get rid of all three tracks, not just the one for the generic Spanish.- MKVToolNix GUI: multiplexer: deriving track languages from file names: the GUI can now detect full BCP 47/RFC 5646 language tags in file names. Part of the implementation of #3173.
- MKVToolNix GUI: multiplexer: deriving track languages from file names: the default list of boundary characters now includes
-. Part of the implementation of #3173.- MKVToolNix GUI: multiplexer: the GUI now defaults to the “lower” process priority setting for new installations in order to leave more room for other applications, especially interactive ones. Up to and including v59 the default was the “normal” process priority. v60 changed that to “lowest”, which turned out to be much slower on Windows for no real gain over “lower”. The setting will be auto-corrected by the GUI if the settings file were saved last with a version between v60.0.0.0 & v60.0.0.17 & “lowest” & it is still set to “lowest”.
- HEVC dumper development tool: the tool has been renamed to
xvc_dumpand extended to be able to dump AVC/H.264 bitstreams, too. It now also detects the type of bitstream framing (ISO 14496-15 vs. ITU-T H.264/H.265 Annex B).Build system changes
- all: IETF BCP 47/RFC 5646 language tags: fixed a corner case of wrongfully allowing scripts/variants not listed in any of the entries in the prefix list when the prefix list contains prefixes restricting scripts/variants and a prefix solely with the language at the same time (example: the variant
ekavskwith its prefixessr,sr-Cyrlandsr-Latnwhere e.g.sr-ekavskandsr-Cyrl-ekavskshould be allowed but notsr-Bali-ekavsk).- mkvmerge: HEVC/H.265: the frame type of B frames was often wrongfully signalled as P frames instead, both with
BlockGroup(missing second references) andSimpleBlock(“discardable” flag not set) elements.- mkvmerge: SSA/ASS packetizer: the frame numbers will now be re-calculated when appending SSA/ASS tracks so that frame numbers of appended tracks are always strictly higher than frame numbers of the track they’re appended to.
- mkvmerge, MKVToolNix GUI’s chapter editor: BCP 47/RFC 5646 language tags: when BCP 47 language tags are used with a language code that isn’t part of ISO 639-2, the programs will now write a legacy language element set to
und(“undetermined”) instead of not writing such an element at all or writing one with an invalid code. Fixes #3174.- mkvmerge, MKVToolNix GUI’s chapter editor: BCP 47/RFC 5646 language tags: the programs will ensure that the legacy and IETF language elements written will be unique within the scope of the same “chapter display” element.
- mkvinfo, MKVToolNix GUI’s info tool: in summary mode the frame type was reported wrong for
BlockGroupelements in which theReferenceBlockelements were located behind theBlockelement.
- all:
std::codecvt_utf8is now used instead of Boost’sutf8_codecvt_facet. The bundled copy the latter inlib/boosthas therefore been removed.
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