[MPlayer-users] Playing ultra-high resolution video

[Dean S. Messing]

I need to be able to play video between Full HD (1920x1080) and QHD
(3840x2160) on our new experimental QHD Flat Panel.

The video will typically be uncompressed RGB in a .avi file.

If the video is entirely in memory, what's the best way to play it in
semi-real time (24 fps or higher)?  I have just ordered an Nvidia
Quadro FX5500 which is a dual - dual-link (sic) card.  The card
bandwidth is there.  So is the memory bandwidth.

However mplayer (on a high-end ATI card) doesn't seem to be able to
come close to this, even at Full HD.  Once it reads the 1.5 gig video
clip off of disk, the disk activity goes to zero so I know it's now
pulling from memory.  Yet I'm getting, maybe, 10fps.

Assuming that I can't tolerate artifacts generated by encoding as
YUV-4:2:0 or something like that, is there a video output device and
codec that will enable me to play at 24fps or more?

Will using the 64-bit version of mplayer make a ×2 speed difference
relative to the 32-bit

If mplayer can't do it, is there a recommendation for a some other
way.  I don't need fancy GUI interfaces. I just need to get the video
to the panel, be able to pause and single-step it (stepping backward
would be icing on the cake).

Thanks in advance for your advice.

Dean