>From: =?ISO-8859-1?Q?Thomas_B=F6rkel?= <[EMAIL PROTECTED]>
>Date: Tue, 27 Jan 2004 15:06:59 +0100
>
>HI!
>
>Sorry to reply on the list, but your host ist blacklisted, so I cannot
>send email to you.
(This message is meant for *me*, right? Lots of people on this list,
and quite a few even involved in this thread.
Who/what blacklisted my host? We've been receiving bounces here lately
because of some virus-laden email which has a spoofed "mir.com" in the
headers. But, if a server was actually blacklisting based on the From:
header of such messages, well, that would be pretty dumb.)
>I tried to use some automatic guesses from y4mscaler, but they did not
>do what's IMHO right.
...
Two things:
a) What is the sample aspect ratio of your source stream?
b) Could you send a copy of the log output?
y4mscaler produces a pretty detailed report of what it thinks
it is doing.
I didn't see "10/11" anywhere in your calculations, which leads me to
think that the bug probably belongs to you, not y4mscaler. :)
-matt m.
>Example:
>I have an NTSC AVI with 640x352 16:9. I want to transcode it to MPEG2
>NTSC 4:3 (720x480).
>According to my calculations, this means X-scaling to 720
>and adding 2 black letterbox bars of 64 pixels each:
>
>I calculate:
>destX = TVwidth
>destY = TVheight x 4/3 x sourceY/sourceX
>letterbox = (TVheight - destY) / 2
>
>So:
>destX = 720
>destY = 480 x 4/3 x 352/640 = 352 (that means, I do not have to scale Y)
>letterbox = (480 - 352) / 2 = 64
>
>
>I tried telling y4mscaler that the source is NTSC_WIDE and the
>destination is NTSC, I also tried supplying the destination size, but I
>always ended up with one of these problems:
>- uses only 630x350 of the source
>- sets destination active area to 720x204 or something
>
>So I now provide all info manually (source size, dest size, dest active,
>dest pos) and this works. Maybe I did something wrong, maybe it's a bug.
-------------------------------------------------------
The SF.Net email is sponsored by EclipseCon 2004
Premiere Conference on Open Tools Development and Integration
See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
http://www.eclipsecon.org/osdn
_______________________________________________
Mjpeg-users mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/mjpeg-users
