[vlc-devel] Fwd: XV output green screen

[Martin Forget]

hi damien,
i never realized that 0 filled in YUV = green! makes perfect sense.

i am going to be honnest...
i looked around in the source...

but with the complexity and module inter-working of vlc , i am  
definitly out of my league !

i was wondering if you or an other member of the team  would be  
interested in doing this modification
for a bounty ( hardware, cash, service )  and post it back to the trunk?

what do you guys need?

thanks

-martin









Begin forwarded message:

> From: Damien Fouilleul <damien.fouilleul at laposte.net>
> Date: August 16, 2007 10:18:44 AM EDT (CA)
> To: Mailing list for VLC media player developers <vlc- 
> devel at videolan.org>
> Subject: Re: [vlc-devel] XV output green screen
> Reply-To: Mailing list for VLC media player developers <vlc- 
> devel at videolan.org>
>
> Martin,
>
> I remember fixing a similar issue for win32 vouts, basically the green
> flash appears when the vout is open, but has no picture to display  
> yet;
> the buffer is 0 filled initially, which translates as green in YUV
> colorspace. The best fix is to delay filling the vout window with the
> colorkey until the first picture has been rendered, the vout window
> should be filled with 'ordinary' black color till then.
>
> whenever you have it fixed, please post a patch so that we can  
> apply it
> to VLC development tree.
>
> Damien
>
> Martin Forget wrote:
>> hello everybody,
>>
>> i am building a digital signage player with vlc and i have a quick
>> question...
>>
>> first, i am primarly using the vlc.plugin.2 within a firefox browser
>> for display, using linux, the XV colorkey and overlaying an other  
>> window
>> to display some flash OSD on top of my video... works great.
>>
>> the problem is not related to vlc.plugin because i have also
>> experienced the same issue with root window or fullscreen playback,
>> on linux AND macosx.
>>
>> my problem is that when vlc has to define a new  vout, (like running
>> a new window, changing codec... or sometime (not all the time)
>> starting a video
>> of the same video as the last played... it creates a green flash.
>>
>> btw, my XV colorkey is set to black, so it's not related... the fact
>> that it does it also on mac sounds like more like a codec thing (like
>> the first frame would be green), but i am not sure why it would only
>> do it  on a new vout... thne it sounds like vout related???
>>
>> anyway,  i would like to force this flash to a black (or black like)
>> color, for estethic reasons,
>>
>> would someone have an idea where to look in the code for this? and
>> point me in the right direction
>>
>> thanks a lot!
>>
>> great work on vlc... !
>>
>> -martin
>>
>> _______________________________________________
>> vlc-devel mailing list
>> vlc-devel at videolan.org
>> http://mailman.videolan.org/listinfo/vlc-devel
>>
>
>
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