Matroska
| mkvmerge | Merge multimedia streams into a Matroska file | mkvmerge(1) |
| mkvinfo | Print information about elements in Matroska files | mkvinfo(1) |
| mkvextract | Extract tracks from Matroska files into other files | mkvextract(1) |
| mkvpropedit | Modify properties of existing Matroska files without a complete remux | mkvpropedit(1) |
| NOTE All commands provided by mkvtoolnix RPM package | ||
Datetime
By default mkvmerge sets the date (element in the category "segment information") to the time and date when multiplexing started.
$ exiftool '-DateTimeOriginal' movie.mkv # no writable tag for exiftool
Date/Time Original : 2014:12:17 21:59:58Z
$ exiftool '-DateTimeOriginal<FileModifyDate' movie.mkv
Error: Writing of MKV files is not yet supported
$ exiftool '-FileModifyDate<DateTimeOriginal' movie.mkv
1 image files updated
$ mkvinfo movie.mkv | grep -i Date
| + Date: 2014-12-17 21:59:58 UTC
$ mkvmerge --identification-format json --identify movie.mkv | grep -i date
"date_local": "2014-12-17T22:59:58+01:00",
"date_utc": "2014-12-17T21:59:58Z",
$ mkvmerge -J movie.mkv # -J is a convenient alias for --identification-format json --identify
$ mkvpropedit --list-property-names | grep -i date $ mkvpropedit movie.mkv --edit info --delete "date" --verbose $ mkvpropedit movie.mkv --edit info --set "date=2024-03-22T17:18:19Z" --verbose
By default mkvpropedit will edit the "segment information" section. The segment information can be selected with one of these three words: info, segment_info or segmentinfo. It contains properties like the segment title, the segment UID or date.
$ mkvpropedit movie.mkv --set "date=2024-03-22T17:18:19Z" --verbose $ mkvpropedit movie.mkv --delete "date" --verbose $ mkvpropedit movie.mkv --delete "title" --verbose
The recognized format is YYYY-mm-ddTHH:MM:SS+zz:zz; example: 2017-03-28T17:28:00-02:00. The letter Z can be used instead of the time zone's offset from UTC to indicate UTC aka Zulu time.