[MPlayer-dev-eng] Writing a brand new D3D video output to fix Vista Aero disabling

[Georgi Petrov]

Interesting - benchmarking -vo gl2:yuv=1 vs -vo directx really doesn't
show and difference, but playing back in real time is another story...


On Fri, May 30, 2008 at 7:10 PM, Georgi Petrov <gogothebee at gmail.com> wrote:
> Hi Alban Bedel :)
>
> We discussed this topic back then exactly with you :)
> It turned out to be 2004:
> http://www.itdp.de/mplayer-dev-eng/2004-03/msg00415.html
>
> I don't remember the details, but I had a good reason. I only recall
> that tdfx_vid was kernel mode driver written by you, but something
> didn't quite work.... I don't have time right now, but tomorrow I'll
> check the thread :)
>
> It was something about the scaling - it didn't used overlay or the
> other driver (the console one - something like tdfxfb) didn't used it,
> BUT overlay was NEEDED in order to do bilinear scaling. Without
> overlay only nearest neighborhood was used by the video hardware.
>
> Just a quick info - I checked and in D3D9 you don't need necessary
> VMR7/9. D3D9 can be used to create YV12/YUY2 surface and this is
> enough. VMR7/9 is optional and you can still use D3D9 only for the
> surface and without any VMR7/9.
>
> Also as I preliminary understand VMR7/9 require DirectShow
> initialization (I could be wrong) and I don't want to go that far.
>
> About -vo gl:yuv=1 - it's slower than DirectDraw. Much slower. Try to
> run e real movie and observe CPU usage. Especially taking into account
> full screen or any size larger than the video itself. Try it ;)
>