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-rw-r--r--doc/filters.texi3
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index eaf46cf99f..800a666c40 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -9,9 +9,10 @@ To illustrate the sorts of things that are possible, we consider the
following filtergraph.
@example
+ [main]
input --> split ---------------------> overlay --> output
| ^
- | |
+ |[tmp] [flip]|
+-----> crop --> vflip -------+
@end example