From b9f8ab3ef490738e7d459e2dbe1bfcb65a134d8e Mon Sep 17 00:00:00 2001 From: Gyan Doshi Date: Thu, 26 Sep 2019 21:46:55 +0530 Subject: [PATCH] doc/filters: warn about gaps/overlaps in xstack --- doc/filters.texi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/doc/filters.texi b/doc/filters.texi index 79a2b32aa0..5ad3927a95 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -19047,6 +19047,11 @@ where X is video input from which to take width or height. Multiple values can be used when separated by '+'. In such case values are summed together. +Note that if inputs are of different sizes gaps may appear, as not all of +the output video frame will be filled. Similarly, videos can overlap each +other if their position doesn't leave enough space for the full frame of +adjoining videos. + For 2 inputs, a default layout of @code{0_0|w0_0} is set. In all other cases, a layout must be set by the user.