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Diffstat (limited to 'doc/filters.texi')
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diff --git a/doc/filters.texi b/doc/filters.texi index cefb8ad0c3..38856e5fa5 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -574,6 +574,22 @@ build. Below is a description of the currently available video filters. +@section ass + +Draw ASS (Advanced Substation Alpha) subtitles on top of input video +using the libass library. + +To enable compilation of this filter you need to configure FFmpeg with +@code{--enable-libass}. + +This filter accepts in input the name of the ass file to render. + +For example, to render the file @file{sub.ass} on top of the input +video, use the command: +@example +ass=sub.ass +@end example + @section blackframe Detect frames that are (almost) completely black. Can be useful to |