[MPlayer-users] lagging video using -vf scale on OS X

[Reimar Döffinger]

On Mon, Nov 17, 2008 at 12:17:35AM -0700, Peter McGuire wrote:
> - Running on MAC OS X (10.3 and up)
> - Fullscreen
> - Scaled to ~75% of the system display size
> - Remaining space is filled in with black
> - Video is centered
> 
> To accomplish this, I'm using the following command (example system
> has a display size of 1280x854):
> 
> mplayer -vf scale=960:-2,expand=1280:854 -sws 0 -framedrop -fs video.avi
> 
> This does what I want and is fine on a faster machine with decent
> graphics support, but the scale causes video lag on slower machines.
> 
> Is there another approach to this problem that would allow slower
> machines to accomplish this task?

Expand to 4/3 of the original video size (without scaling).
Alternatively try the -panscan... options, if they are supported on OSX.