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authorwm4 <wm4@nowhere>2019-12-18 05:11:57 +0100
committerwm4 <wm4@nowhere>2019-12-18 05:32:02 +0100
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options: increase consistency between list options and document them
Whenever I deal with this, I have to look at the code to make sense of this. And beyond that, there are some strange inconsistencies. (I think this code is cursed. It always was, and maybe always will be.) Although the manpage claimed that using multiple items for -add etc. is deprecated, string list options didn't warn against it. So add the warning, and add something in the changelog (even though nobody will ever read this). The manpage mentioned --vf-append, but this didn't even exist. So add it, I guess. We encourage using -append for the other option types, so for consistency, it should work on filter options. (And I already tricked me into believing it existed when I mentioned it in the manpage.) Make the "operations" table separate for all option types, and mention the option type on every single of the top-level list options.
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diff --git a/DOCS/man/vf.rst b/DOCS/man/vf.rst
index 40994dd652..a9288d7a93 100644
--- a/DOCS/man/vf.rst
+++ b/DOCS/man/vf.rst
@@ -85,6 +85,9 @@ libavfilter bridge.
Video filters are managed in lists. There are a few commands to manage the
filter list.
+``--vf-append=filter``
+ Appends the filter given as arguments to the filter list.
+
``--vf-add=filter``
Appends the filter given as arguments to the filter list. (Passing multiple
filters is currently still possible, but deprecated.)