... | ... | @@ -58,11 +58,12 @@ All of `mkvmerge`'s options that accept a language accept a BCP 47 language tag. |
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When identifying a file in JSON mode, existing "LanguageIETF" track header elements will be output as the `language_ietf` track property.
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When writing a file will always write the "LanguageIETF" and "ChapLanguageIETF" elements. In addition to those elements the corresponding
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old elements will be written; they'll be set to the ISO 639-2 code portion of the BCP 47 language tag. For example, when the track language
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is set to `sr-Cyrl-RS` "LanguageIETF" will be set to `sr-Cyrl-RS` and the old "Language" element will be set to "srp").
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When writing a file will always write the "LanguageIETF", "ChapLanguageIETF" and "TagLanguageIETF" elements (the latter two only if chapters
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or tags are written in general, of course). In addition to those elements the corresponding old elements will be written; they'll be set to
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the ISO 639-2 code portion of the BCP 47 language tag. For example, when the track language is set to `sr-Cyrl-RS` "LanguageIETF" will be
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set to `sr-Cyrl-RS` and the old "Language" element will be set to "srp").
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When reading existing files (Matroska files, XML chapter files etc.) that already contain those "…LanguageIETF" elements the existing
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When reading existing files (Matroska files, XML chapter or tag files etc.) that already contain those "…LanguageIETF" elements the existing
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elements will be kept. Otherwise "…LanguageIETF" elements will be added based on command-line options and other existing "…Language"
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elements.
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... | ... | @@ -78,7 +79,7 @@ Changes to the old `language` track header property will cause `mkvpropedit` to |
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as well as the old "Language" element similar to how `mkvmerge` applied the language to both elements. For example, when using `mkvpropedit
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movie.mkv --edit track:2 --set language=zh-TW` the "LanguageIETF" element will be set to `zh-TW` and the old "Language" element to `chi`.
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When reading XML chapter files `mkvpropedit` works like `mkvmerge` does (see above).
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When reading XML chapter or tag files `mkvpropedit` works like `mkvmerge` does (see above).
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The creation of the new elements can be disabled completely with the command-line option `--disable-language-ietf` which operates on all
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three new elements.
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... | ... | @@ -111,8 +112,8 @@ Matroska file that contains them. Here's how to do that: |
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* For `mkvmerge` add the command-line option `--disable-language-ietf`. Not only does it prevent `mkvmerge` from adding those elements,
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they'll also be removed if they exist in the source file.
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* For `mkvpropedit` add the command-line option `--disable-language-ietf`. It'll prevent `mkvpropedit` from writing the track header
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"LanguageIETF" element when working on the `language` property and remove the "ChapLanguageIETF" element when working on chapters. For
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removing existing track header "LanguageIETF" elements, use `--edit track:… --delete language-ietf`.
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"LanguageIETF" element when working on the `language` property and remove the "ChapLanguageIETF" & "TagLanguageIETF" elements when working
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on chapters or tags respectively. For removing existing track header "LanguageIETF" elements, use `--edit track:… --delete language-ietf`.
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* For MKVToolNix GUI's multiplexer you can add `--disable-language-ietf` to the default list of additional command-line options in the
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preferences → "Multiplexer" → "Default values" → "Default additional command-line options".
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* For MKVToolNix GUI's chapter editor you currently cannot disable the creation of "ChapLanguageIETF" elements. Such functionality might be
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