doc/filters: add one more blend example

Signed-off-by: Paul B Mahol <onemda@gmail.com>
7 years ago · 05b1c60687
parent e6e58de03d
commit 05b1c60687
1 changed files with 6 additions and 0 deletions
--- a/doc/filters.texi
+++ b/doc/filters.texi
@ -4994,6 +4994,12 @@ Apply transition from bottom layer to top layer in first 10 seconds:
 blend=all_expr='A*(if(gte(T,10),1,T/10))+B*(1-(if(gte(T,10),1,T/10)))'
@end example

+@item
+Apply linear horizontal transition from top layer to bottom layer:
+@example
+blend=all_expr='A*(X/W)+B*(1-X/W)'
+@end example
+
@item
 Apply 1x1 checkerboard effect:
@example