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-rw-r--r--doc/filters.texi6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index 8427b88d3d..26c5b4db48 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -27041,6 +27041,12 @@ The end time in seconds of the current command interval.
@item TI
The interpolated time of the current command interval, TI = (T - TS) / (TE - TS).
+
+@item W
+The video frame width.
+
+@item H
+The video frame height.
@end table
@end table