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Add -vf scale example for making pixels square

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This is a common use case.
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Tomas Härdin 2018-02-19 18:42:25 +01:00
parent fd76e7be70
commit 41317da325
1 changed files with 13 additions and 0 deletions
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doc/filters.texi
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@ -13721,6 +13721,19 @@ keeping the same aspect ratio as the input:
@example
scale=w='min(500\, iw*3/2):h=-1'
@end example
@item
Make pixels square by combining scale and setsar:
@example
scale='trunc(ih*dar):ih',setsar=1/1
@end example
@item
Make pixels square by combining scale and setsar,
making sure the resulting resolution is even (required by some codecs):
@example
scale='trunc(ih*dar/2)*2:trunc(ih/2)*2',setsar=1/1
@end example
@end itemize
@subsection Commands