[Bug 24722] New: XV corruption

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=24722

           Summary: XV corruption
           Product: xorg
           Version: 7.4
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: ancoron at chaoslayer.de
         QAContact: xorg-team at lists.x.org


Created an attachment (id=30664)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=30664)
corruptions with XviD codec

For several months now I experience various corruptions using XV. Now I finally
got the time to file a bug here against that because I didn't see a similar
record yet.

Those corruptions seem to happen if I scale a movie double or more. When using
the software scaler all things are fine and on another system (nVidia card with
the nouveau driver) the same movies are scaled correctly and no corruption
appears.

The corruption itself is different from movie to movie. Although the amount and
type of corruption seem to depend on the video codec it may just be some kind
of race condition.

The system setup:
- ATI Radeon X1950XTX (R580)
- Kubuntu 9.04 (kernel 2.6.28)
- radeon driver from xorg-edgers PPA

The corruption can be seen best with kmplayer. Smplayer is the one that seems
to be mostly resistant to those corruptions but at least with Sorenson 3 or
MPEG 4 codec it also shows those corruptions. Also with a lot of codecs
fullscreen in mplayer works fine but when just maximizing the window the
corruptions appear. In the end all video players using XV can be made to
reproduce the corruption.

As my display setup is 2x 1280x1024 CRT's I cannot reproduce those corruptions
with Full-HD content as it cannot be scaled that large and therefore seem to
work fine. Also DVD-playback in one of the displays is fine (again, the frame
is scaled less than 2x the original size).

I am not using KMS.

I've added some screenshots from some of the corruptions.


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