[MPlayer-users] Playing QHD (3840x2160) material with mplayer

[Kevin DeKorte]

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Dean S. Messing wrote:
| On Apr 11, 2008, Dominik 'Rathann' Mierzejewski wrote:
|> You could try using -vo gl:yuv=X with various X values or -vo xvidix (see
|> man mplayer), but there are other limiting factors as well.
|
| and
|
| On 11 Apr 2008, Reimar Doeffinger wrote:
|> At this resolution, I think at best some really new cards will be able
|> to handle it via -vo gl, probably only -vo gl2 will work. And it
|> certainly should not be that much faster that x11.
|
| I finally got a few minutes to try both of your suggestions.
| None come close to playing QHD at 24 fps. There were certainly
| speed differences between -vo gl:yuv=X for X==0 compared to the
| other values (which were all faster) but all are slower
| that -vo x11.
|
| I am baffled by two things:
|
| 1)    As mplayer sucks the video off of disk the first time around
|       I would expect to see the glrellm memory meter (Fedora 6) increase,
|       but I don't.  Once the disk activity drops to zero mplayer speeds up
|       form 2 or 3 fps to ~14, so it is clearly playing from memory.
|       The meter shows that I'm using maybe 15% of the memory before
|       calling mplayer.  The clip is 2.4GB long and i have 4GB of memory
|       so the meter should move.  But it doesn't.
|
| 2)    It turns out I _can_ play a few frames at 24 fps or faster
|       using `animate' from ImageMagick.  The problem is that ImageMagick
|       is a memory pig: a single QHD frame is 24.8MB but it eats more
|       than 5 times that amount w/in ImageMagick.
|
|       Nonetheless, it would seem that since it is able to ship the pixels
|       to the display panel, the system is fundamentally capable of it.
|
| I wrote down the system specs in a previous message in this thread:
| <http://lists.mplayerhq.hu/pipermail/mplayer-users/2008-April/072641.html>
|
| Thanks again for any help you provide!
|
| Dean

Dean,

Really dumb question here, have you tried playing the media with the
really huge cache setting...

mplayer -cache 1000000000

The cache value is in kbytes, might take a second or two to load

Kevin


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