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author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2011-04-09 15:49:49 +0400 |
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committer | Anton Khirnov <anton@khirnov.net> | 2011-04-26 11:08:27 +0400 |
commit | 4bc282322ba1c03ed98737740f6b5e17b604ffa1 (patch) | |
tree | b9ba226cc8f41cda450876179cca8c5b6a5495af /doc/ffmpeg.texi | |
parent | 893722ceeb709fcb301a87f07b952d30633bcb06 (diff) |
documentation: extend documentation for ffmpeg -aspect option
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Diffstat (limited to 'doc/ffmpeg.texi')
-rw-r--r-- | doc/ffmpeg.texi | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/ffmpeg.texi b/doc/ffmpeg.texi index 0d12f65f02..cabf395582 100644 --- a/doc/ffmpeg.texi +++ b/doc/ffmpeg.texi @@ -230,7 +230,13 @@ The following abbreviations are recognized: @end table @item -aspect @var{aspect} -Set aspect ratio (4:3, 16:9 or 1.3333, 1.7777). +Set the video display aspect ratio specified by @var{aspect}. + +@var{aspect} can be a floating point number string, or a string of the +form @var{num}:@var{den}, where @var{num} and @var{den} are the +numerator and denominator of the aspect ratio. For example "4:3", +"16:9", "1.3333", and "1.7777" are valid argument values. + @item -croptop @var{size} @item -cropbottom @var{size} @item -cropleft @var{size} |