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avfilter/vf_subtitles: add wrap_unicode option

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So CJK can be wrapped automatically.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
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Zhao Zhili
2023-05-23 13:22:25 +08:00
parent 8e2547ebb2
commit 43ace8f2bc
3 changed files with 26 additions and 1 deletions
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doc/filters.texi
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@@ -22440,6 +22440,13 @@ Set subtitles stream index. @code{subtitles} filter only.
@item force_style
Override default style or script info parameters of the subtitles. It accepts a
string containing ASS style format @code{KEY=VALUE} couples separated by ",".
@item wrap_unicode
Break lines according to the Unicode Line Breaking Algorithm. Only available
since libass version 0x01600010, and whether it's usable depends on the built
of libass.
The option is enabled by default except for native ASS.
@end table
If the first key is not specified, it is assumed that the first value