[Openchrome-users] (driver bug) Xv/XvMC picture adjustments w/OpenChrome

[Thomas Hellström]

Daniel Kristjansson wrote:

>A little update. I had T?rbjorn try removing the "XV_SWOV" adjustment.
>The first interesting thing is this affected both XVideo and XvMC, so
>they are both using the same adaptor. You guys probably already knew
>this. The second interesting thing:
>
>  
>
>>Analog recordings looks almost black and while when hue is at 0%
>>Changing hue to 50% makes the picture look as before, something
>>that looks like red and blue is swaped and OSD looks OK.
>>    
>>
>
>  
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>>Dvb recordings at 0% hue also looks different, almost as if there
>>is less color or something. At 50% hue the picture looks good.
>>    
>>
>
>His DVB recordings are MPEG-2 and are displayed using XvMC, and his
>Analog recordings use MPEG-4 and are displayed using XVideo.
>
>Anyway, it sounds like in XvMC the driver's hue adjustment is
>controlling the hardware's saturation control. So this is a
>driver bug. He is using the driver that ships with Fedora Core 5,
>so this may be fixed in SVN...
>
>Perhaps the driver's saturation control is controlling the hue?
>  
>
This sounds strange.
XvMC is just forwarding the attributes to the corresponding Xv adaptor 
on a per-context basis, so Xv and XvMC should be using the same hue 
controls.

Does he have the same problems using Xine?

/Thomas



>-- Daniel
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