On Sat, 03 Feb 2007 17:10:20 +0000, ][ wrote:

> If there is no distortion during the 2 DAR conversion, the result should
> be exactly 720x576. What's wrong here?

Just my thinking, the following statement from the transcode manual might be
relevant to the issue: 

,-----
| The _final result_ should be 640x480, encoded as 480x480 @ 4:3 (the height
| 480 multiplied by the aspect ratio 4:3 gives the width 640).
`-----

I.e., a 640x480 video frame, if encoded @ 4:3, the output frame size should
be 480x480. This complies with the knowledge and practice back in the days
when I used mplayer to do the video transcoding. By then, I have to
explicitly adjust the output frame width by dividing the input frame width
by 4/3.

-- 
Tong (remove underscore(s) to reply)
  http://xpt.sf.net/techdocs/
  http://xpt.sf.net/tools/

Reply via email to