[mythtv] Problems with latest CVS & DVB & Unichrome

[Ivor Hewitt]

On Saturday 05 Feb 2005 20:52, Daniel Thor Kristjansson wrote:
> On Sat, 5 Feb 2005, Ivor Hewitt wrote:
> ]On Saturday 05 Feb 2005 17:23, Daniel Thor Kristjansson wrote:
> ]I've gone back to 31/1/2005 and the VLD acceleration is fine there. I'm a
> bit ]busy at the moment but I'm trying to see what change caused the XvMC
> break. ]The bob deint is still broken for XV at that date. I assume it's a
> unichrome ]driver bug, but no-ones reported it to us so who knows when it
> happened.
>
> Here's a debugging patch for xvmc. I compared with versions back to 1.38
> and added enable and disable defines at the top of the file. These let
> you disable the changes one by one that may be causing problems.
>
Thanks Daniel,

Yup even #defining all the features out, VLD is still broken on changing 
channel.

Also I manually reverted the changes in just videoout_xvmc.cpp back to the 
30/1/2005 snapshot... and it's still broken. So there is a change somewhere 
else... that's causing the change in behaviour.
Going back to a full mythtv snapshot at 30/1/2005 and the VLD works fine.

> But if the change happened in 1.38 or earlier it begins to get
> complicated...
>

Now onto XV......  This only affects XV with bob-deint turned on.. Without 
bob, XV is fine.

> Are you saying the green flashing happening in XV with Jan 31st CVS?
>
Right going back to Jan 31st.. With bob-deint turned on the image flashes 
between a correct image and an reverse-video image. I think this must be a 
unichrome driver bug.... But there is no green flashing. So t appears to 
work.

The crazy green flashing only occurs with the current CVS.... and the flipping 
between normal and inverse video on odd/even frames is still there... 

> If you mean something else...
> In videoout_xv.cpp can you try changing
>     InitColorKey(true);
> to
>     InitColorKey(false);
> at around line 507? I think the color key painting might be
> getting triggered way too often of some reason.
>

Anyway its getting late and I've got an early start, so I'll have to leave 
this for tonight.

But in summary... with current CVS, changing channel causes the XVMC-VLD to 
barf. But going back to CVS of 31st Jan works fine. Just reverting the 
changes to videoout_xvmc.cpp does not fix the problem.

Turning on bob-deint on XV with current CVS causes green screen flashing... 
going back to 31st Jan works fine.... except.... the unichrome driver appears 
to have a bug and the second XV buffer that is flipped has inverted colours 
so its not usable anyway.

Cheers,

-- 
Ivor
http://www.ivor.it/goog - MSN Search unbiased?