Ok, the formatting is fine except for one. See below.
On 25-09-2019 03:56 AM, lance.lmw...@gmail.com wrote:
From: Limin Wang <lance.lmw...@gmail.com>
Reviewed-by: Gyan <ffm...@gyani.pro>
Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
---
doc/filters.texi | 42 +++++++++++++++++++++++++++++++++++++++++-
1 file changed, 41 insertions(+), 1 deletion(-)
diff --git a/doc/filters.texi b/doc/filters.texi
index e41384a..a8342c0 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -19057,6 +19057,13 @@ terminates. Default value is 0.
@itemize
@item
Display 4 inputs into 2x2 grid.
+
+Below is the 4 inputs position:
+@example
+input1(0, 0) | input3(w0, 0)
+input2(0, h0) | input4(w0, h0)
+@end example
+
Note that if inputs are of different sizes unused gaps might appear,
as not all of output video is used.
@example
@@ -19065,6 +19072,12 @@ xstack=inputs=4:layout=0_0|0_h0|w0_0|w0_h0
@item
Display 4 inputs into 1x4 grid.
+
+Below is the 4 inputs position:
+@example
+input1(0, 0) | input2(0, h0) | input3(0, h0+h1) | input4(0, h0+h1+h2)
Since this is 1 column x 4 rows, these should be different lines without
the separator.
+@end example
+
Note that if inputs are of different sizes unused gaps might appear,
as not all of output video is used.
@example
@@ -19073,11 +19086,38 @@ xstack=inputs=4:layout=0_0|0_h0|0_h0+h1|0_h0+h1+h2
@item
Display 9 inputs into 3x3 grid.
+
+Below is the 9 inputs position:
+@example
+input1(0, 0) | input4(w0, 0) | input7(w0+w1, 0)
+input2(0, h0) | input5(w0, h0) | input8(w0+w1, h0)
+input3(0, h0+h1) | input6(w0, h0+h1) | input9(w0+w1, h0+h1)
Shouldn't the third column be at x = w0+w3? w1 is width of input2, right?
+@end example
+
Note that if inputs are of different sizes unused gaps might appear,
as not all of output video is used.
@example
-xstack=inputs=9:layout=w3_0|w3_h0+h2|w3_h0|0_h4|0_0|w3+w1_0|0_h1+h2|w3+w1_h0|w3+w1_h1+h2
+xstack=inputs=9:layout=0_0|0_h0|0_h0+h1|w0_0|w0_h0|w0_h0+h1|w0+w1_0|w0+w1_h0|w0+w1_h0+h1
@end example
+
+@item
+Display 16 inputs into 4x4 grid.
+
+Below is the 16 inputs position:
+@example
+input1(0, 0) | input5(w0, 0) | input9 (w0+w1, 0) |
input13(w0+w1+w2, 0)
+input2(0, h0) | input6(w0, h0) | input10(w0+w1, h0) |
input14(w0+w1+w2, h0)
+input3(0, h0+h1) | input7(w0, h0+h1) | input11(w0+w1, h0+h1) |
input15(w0+w1+w2, h0+h1)
+input4(0, h0+h1+h2)| input8(w0, h0+h1+h2)| input12(w0+w1, h0+h1+h2)|
input16(w0+w1+w2, h0+h1+h2)
Same as above.
You should also note that when videos are of different sizes, the videos
may overlap e.g. if height of input5 is greater than input1, then input6
will be overlaid on top of part of input5.
Gyan
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