[MPlayer-users] MPEG files have a vertical ripple with Xv and not with x11 driver

[Brian J. Murrell]

On Fri, Jan 04, 2002 at 04:04:19AM -0500, Brian J. Murrell wrote:
> 
> I have downloaded a couple of mpegs from usenet.  They seem to have
> this strange vertical "ripple" when played with VESA and Xv drivers
> but when played with the x11 driver it looks just fine.  File fragment
> as per bugreport.html uploaded as L\&O-12x10(VCD)[TBV].mpg 

OK, I have perhaps a better description of what is going wrong in the
picture.  What it looks like is that every so many vertical lines, two
lines are swapped.  So given an ascii-art picture of a circle (column
numbers at the top):

         111
123456789012
     ooo
   oo   oo
  o       o
 o         o
 o         o
 o         o
  o       o
   oo   oo
     ooo

the output on the window is something more like:

         111
132456798012
     oo o
   oo  o o
 o        o
  o        o
  o        o
  o        o
 o        o
   oo  o o
     oo o

Notice that colums 2 and 3 and 8 and 9 are swapped.

My previous message on this should be a pretty complete bug report.  I
did a cvs update today and still the same problem.  I have it on two
different machines, one with a Matrox and ATI Mach64 card in it and
another machine with a Radeon.  Both the VESA and mga modes on the
Radeon exhibit this problem as well.

I hope you still have the sample mpeg file.  If you look closely at
diagonal shapes with good color contrast you should hopefully see the
"ripples" I am talking about here.

If you want any more info, I would be most pleased to supply it.

Thanx,
b.

-- 
Brian J. Murrell