From af007e36d1590d431282fd760175d92f631dc48f Mon Sep 17 00:00:00 2001 From: Limin Wang Date: Thu, 26 Sep 2019 22:57:42 +0800 Subject: doc/filters: add 4x4 layout example for xstack filter Add layouts for existing examples. Reviewed-by: Gyan Signed-off-by: Limin Wang --- doc/filters.texi | 57 +++++++++++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 50 insertions(+), 7 deletions(-) (limited to 'doc') diff --git a/doc/filters.texi b/doc/filters.texi index e6f8bf0ee9..79a2b32aa0 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -19060,27 +19060,70 @@ terminates. Default value is 0. @itemize @item Display 4 inputs into 2x2 grid. -Note that if inputs are of different sizes unused gaps might appear, -as not all of output video is used. + +Layout: +@example +input1(0, 0) | input3(w0, 0) +input2(0, h0) | input4(w0, h0) +@end example + @example xstack=inputs=4:layout=0_0|0_h0|w0_0|w0_h0 @end example +Note that if inputs are of different sizes, gaps or overlaps may occur. + @item Display 4 inputs into 1x4 grid. -Note that if inputs are of different sizes unused gaps might appear, -as not all of output video is used. + +Layout: +@example +input1(0, 0) +input2(0, h0) +input3(0, h0+h1) +input4(0, h0+h1+h2) +@end example + @example xstack=inputs=4:layout=0_0|0_h0|0_h0+h1|0_h0+h1+h2 @end example +Note that if inputs are of different widths, unused space will appear. + @item Display 9 inputs into 3x3 grid. -Note that if inputs are of different sizes unused gaps might appear, -as not all of output video is used. + +Layout: @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 +input1(0, 0) | input4(w0, 0) | input7(w0+w3, 0) +input2(0, h0) | input5(w0, h0) | input8(w0+w3, h0) +input3(0, h0+h1) | input6(w0, h0+h1) | input9(w0+w3, h0+h1) @end example + +@example +xstack=inputs=9:layout=0_0|0_h0|0_h0+h1|w0_0|w0_h0|w0_h0+h1|w0+w3_0|w0+w3_h0|w0+w3_h0+h1 +@end example + +Note that if inputs are of different sizes, gaps or overlaps may occur. + +@item +Display 16 inputs into 4x4 grid. + +Layout: +@example +input1(0, 0) | input5(w0, 0) | input9 (w0+w4, 0) | input13(w0+w4+w8, 0) +input2(0, h0) | input6(w0, h0) | input10(w0+w4, h0) | input14(w0+w4+w8, h0) +input3(0, h0+h1) | input7(w0, h0+h1) | input11(w0+w4, h0+h1) | input15(w0+w4+w8, h0+h1) +input4(0, h0+h1+h2)| input8(w0, h0+h1+h2)| input12(w0+w4, h0+h1+h2)| input16(w0+w4+w8, h0+h1+h2) +@end example + +@example +xstack=inputs=16:layout=0_0|0_h0|0_h0+h1|0_h0+h1+h2|w0_0|w0_h0|w0_h0+h1|w0_h0+h1+h2|w0+w4_0| +w0+w4_h0|w0+w4_h0+h1|w0+w4_h0+h1+h2|w0+w4+w8_0|w0+w4+w8_h0|w0+w4+w8_h0+h1|w0+w4+w8_h0+h1+h2 +@end example + +Note that if inputs are of different sizes, gaps or overlaps may occur. + @end itemize @anchor{yadif} -- cgit v1.2.3