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diff --git a/doc/vfilters.texi b/doc/vfilters.texi
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@@ -28,6 +28,8 @@ integrate it into ffmpeg and ffplay.
But note that there may still be serious bugs in the code and its API
and ABI should not be considered stable yet!
+@chapter Tutorial
+
In libavfilter, it is possible for filters to have multiple inputs and
multiple outputs.
To illustrate the sorts of things that are possible, we can