Re: OT: vlc oscurece la pantalla
"Evgeny M. Zubok" <evgeny.zubok@tochka.ru> writes:
> "C. L. Martinez" <carlopmart@gmail.com> writes:
>
>> Pues tampco ... Esto empieza a ser un pelín desesperante ... Es
>> demasiado raro. El driver que utilizo es nvidia, pero si fuese tema de
>> driver me pasaria con videos flash también ...
>
> Puede ser que Flash no utilice Xv para escalar de vídeo, no sé.
Y eso así. Pero no estoy seguro de que tu problema esté ahí. Tendrás que
comprobar.
http://blogs.adobe.com/penguinswf/2008/05/flash_uses_the_gpu.html:
* FAQ regarding hardware acceleration: Why doesn’t the Flash Player
on Linux user the X video extension (Xv)?
* Answer: Because Xv scales YUV data. Flash Player operates on RGB
data.
For the uninitiated, many video codecs operate in a YUV
colorspace. Unix/X11 has an extension called X video that allows
hardware scaling of YUV images. This is a very mature system on Linux
which has allowed seamless, low CPU usage, fullscreen video playback on
Linux for many years. Unfortunately, the Flash Player can not easily
make use of this since Sorenson, On2, or H.264 video data — even though
it is decoded as YUV — has to be converted to RGB and possibly combined
with other graphical elements. This is why RGB scaling via OpenGL is the
future of Flash.
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