Signed-off-by: Nicolas George <geo...@nsup.org>
---
doc/filters.texi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/doc/filters.texi b/doc/filters.texi
index 7e5a9a625a..886cd5a7e8 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -161,6 +161,11 @@ follow the same constraints order of the previous point.
The following
@end itemize
+Future evolutions of filters may require inserting new options or changing
+their order, especially for the non-essential options, and that would break
+options given without their name. For that reason, uses that require
+stability should favor the @var{key=value} notation.
+
If the option value itself is a list of items (e.g. the @code{format} filter
takes a list of pixel formats), the items in the list are usually separated by
@samp{|}.
--
2.13.2
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