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doc/filters: warn about gaps/overlaps in xstack

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Gyan Doshi 2019-09-26 21:46:55 +05:30
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commit b9f8ab3ef4
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@ -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 Multiple values can be used when separated by '+'. In such
case values are summed together. 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, 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. a layout must be set by the user.