[MPlayer-dev-eng] [PATCH] Pivoting

[Rich Felker]

On Fri, Aug 19, 2005 at 04:40:29PM +0200, Pawe? Sakowski wrote:
> I've recently played with the screen rotation feature of RandR X server
> extension. A quick introduction to the concept: you get a 1024x1280 (in
> my case) X display, which is rotated 90 degrees before being sent to the
> monitor. You can invoke it with `xrandr -o 1` if supported by your X
> server (I had to add Option "RandRRotation" "true" to xorg.conf to make
> it work on my nvidia). It is pretty useful with pivoted TFT displays.
> 
> While such rotation is meant to be transparent to X clients, it turns
> out that MPlayer doesn't cope well with a rotated display on full screen
> (with -vo xv and a few others).
> 
> Problem #1: XF86VidModeGetModeLine returns the physical monitor's
> dimensions (1280x1024) as opposed to the logical ones returned by
> Display{Width,Height} (1024x1280). Attaching a patch that makes mplayer
> use the latter even if xf86vm is available. Note: I'm not sure if this

Display{Width,Height} will not work with vidmode changes.

> change is valid for all setups. Is there a situation where the modeline
> dimensions are more reliable than Display{Width,Height}? No other
> modeline information is being retrieved from the call to
> XF86VidModeGetModeLine. Note #2: I don't have Xinerama available, so I
> don't know how XineramaQueryScreens copes with rotated screens.
> 
> Problem #2: aspect.c sets monitor_aspect to the fixed value of 4:3,
> unless overridden by command line or config file. It's a pretty
> arbitrary value, and it's wrong for my monitor (which has aspect ratio

This has been discussed before. If you want it different, override it
in your config file.

Rich