MKVToolNix

Placement of key frames inside clusters has been improved. Support for PGS/SUP files has been added. Several crashes have been fixed. The handling of default values in mmg has been fixed. mkvmerge uses "header removal compression" for several track types. Muxing speed has been improved by caching write operations. The man pages have been translated into Dutch and the programs into Spanish.

This release introduces full WebM support for mkvmerge, mkvextract, and mmg. This consists of several restrictions for the WebM container, VP8 track support, and IVF container support. Several bugs reading Matroska/WebM files with elements with an unknown size have been fixed. mkvextract cannot extract FLAC into OggFLAC files anymore, only into raw FLAC files. mmg shows the estimated remaining time during muxing.

Translations into Russian and Ukrainian were added. The handling of non-spec compliant h.264 streams created by ffmpeg was fixed. A segfault in mkvmerge when reading certain Matroska files was fixed. mkvextract can handle ASS/SSA tracks that miss the "Text" format column. mkvpropedit and mmg's header editor can handle files created by Haali's muxer.

MP4 files created by current x264 versions and UTF-16 encoded chapters in MP4 files are handled correctly. The handling of damaged Matroska files has been greatly improved. Timestamps for interlaced MPEG-1/2 tracks are calculated correctly. mkvtoolnix can be compiled with MS Visual Studio and includes instructions for this and mingw. The programs now fall back to English if the system does not contain locales for the selected language instead of crashing. Several other crashes have been fixed.

Controls were added to mmg for mkvmerge's "--cropping" and "--segmentinfo" options. Tooltips are word-wrapped on Windows. Job files are saved in the application data folder. A crash when writing chapters to Matroska files was fixed. Handling of VOB files larger than 4GB and crashes on invalid XML files on Windows have been fixed for mkvmerge. mkvextract now only opens source files for reading, and proper error messages are shown if the source file cannot be read. A Chinese Simplified translation for the man pages was added.