Hi,
I have a 720x576 dvd with 2 black 8 pixel vertical border.

1) In the clip & zoom window :
I make a 1rst clip (0,0,8,8) (t/b/l/r) that give 704x576 with 1.25 eff
ratio

2) in the zoom calculator :
I put
- fast resize alignment : 8
- auto clipping : no-take existent clip1 (to use my clip1 entries on
the Clip & Zoom page)

and I obtain :
+-------+------+-------+-------+-------+
|result |eff |clip 1 |zoom |clip |
|size |AR | |size |2 |
+-------+------+-------+-------+-------+
|640x368|1.7787|0,0,8,8|640x368|0,0,0,0|
+-------+------+-------+-------+-------+
which is very fine but...
....but the resize command is -B 26,8,8 and I think it's better to have
-B 13,4,16 resize command. So I make :

3) in the zoom calculator :
I put
- fast resize alignment : 16
- auto clipping : no-take existent clip1 (to use my clip1 entries on
the Clip & Zoom page)

but I always obtain :
+---------+---------+-------+---------+---------+
|result |eff |clip 1 |zoom |clip |
|size |AR | |size |2 |
+---------+---------+-------+---------+---------+
|something|something|0,0,0,0|something|something|
+---------+---------+-------+---------+---------+

Impossible to get 0,0,8,8 in clip 1 !!

I don't understand why. Fast resize alignment= 16 is for RESIZING, not
for CLIPPING isn't it ?

So I can't understand why I can't get clip 1 (0,0,8,8) even with fast
resize alignment= 16 in the zoom calculator with the intention to get
-B 13,4,16 resize command.

Have you an argument ?

Cheers
--
Philippe Monroux
Ile de la Reunion
E 55.3 S 21.5