On Thu, Apr 29, 2004 at 12:49:40PM -0400, Rob wrote:
> Jiri and others:
> 
> Using the mplayer -v option yields the output below (options passed on the
> commandline are "-vo directfb -dr").  Enabling -dr did actually result in
> the movie being displayed (thanks for the tip).
> 
> I also tried using the -vo dfbmga option as suggested by someone but got
> the error:
> (*) DirectFB/Graphics: Matrox G200 0.7 (convergence integrated media GmbH)
> Can't get CRTC2 layer - Not supported!
> Error opening/initializing the selected video_out (-vo) device.

You need to use -vo dfbmga:bes

> And Ville, Microsoft defines the NV12 format as:
> "A format in which all Y samples are found first in memory as an array of
> unsigned char with an even number of lines (possibly with a larger stride
> for memory alignment), followed immediately by an array of unsigned char
> containing interleaved Cb and Cr samples (such that if addressed as a
> little-endian WORD type, Cb would be in the LSBs and Cr would be in the
> MSBs) with the same total stride as the Y samples. This is the preferred
> 4:2:0 pixel format."

That seems to confirm it then. G200 supports NV12.

> If its preferred by MS it could atleast be supported by directfb =)

I wonder how old that recommendation actually is. I was under the 
impression that most Windows video stuff prefers YUY2/UYVY.

-- 
Ville Syrj�l�
[EMAIL PROTECTED]
http://www.sci.fi/~syrjala/


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