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| author | Stefano Sabatini <stefasab@gmail.com> | 2012-03-19 19:28:56 +0100 |
|---|---|---|
| committer | Stefano Sabatini <stefasab@gmail.com> | 2012-03-21 15:14:28 +0100 |
| commit | 8e0d3c03698b5917cb9163f035935ecc7a864ada (patch) | |
| tree | acf62087913af479007018d3677a13452083e292 /doc/filters.texi | |
| parent | c9399538b7561a27743e6a6c8a5784aa8c3f5805 (diff) | |
| download | ffmpeg-8e0d3c03698b5917cb9163f035935ecc7a864ada.tar.gz | |
lavfi/ass: add dar option
Allow to specify the display aspect ratio adopted for rendering
subtitles.
Diffstat (limited to 'doc/filters.texi')
| -rw-r--r-- | doc/filters.texi | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 9aedb01bb2..2863f8cf2a 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -753,7 +753,18 @@ 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. +This filter accepts the syntax: @var{ass_filename}[:@var{options}], +where @var{ass_filename} is the filename of the ASS file to read, and +@var{options} is an optional sequence of @var{key}=@var{value} pairs, +separated by ":". + +A description of the accepted options follows. + +@table @option +@item dar +Specifies the display aspect ratio adopted for rendering the +subtitles. Default value is "1.0". +@end table For example, to render the file @file{sub.ass} on top of the input video, use the command: |