[MPlayer-users] Re: aspect ratio change in 1920x1080 seq.

D Richard Felker III dalias at aerifal.cx
Thu Mar 13 01:54:41 CET 2003

On Wed, Mar 12, 2003 at 03:25:47PM -0800, Dean S. Messing wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> D Richard Felker III writes:
>  :: On Wed, Mar 12, 2003 at 11:36:22PM +0100, Balatoni Denes wrote:
>  :: > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>  :: > Hi!
>  :: > 
>  :: > How about adding -vop scale=width:height -sws X
>  :: > ( 0 <= X <= 10 , incase your cpu is not fast enough to use slower
>  :: > rescaling methods) ?
>  :: 
>  :: LOL!! There is no (non-classified ;))) cpu that can software scale
>  :: 1920x1080 in realtime!
>  :: 
>  :: I would suggest just using -x and -y to control hardware scaler... but
>  :: I think they fail when the aspect code fails to find a size that fits.
>  :: :(
>  :: 
>  :: Rich
> You are right. -x and -y don't work here.  What's this about "fails to
> find a size that fits?"  I just want MPlayer to leave the cotton-picking
> data alone and play it.  Since my screen is 1600x1200 I expect the
> window to hang off the edge.  That fine.

This should be fixed, but I don't know where the bug is...

> In fact, what MPlayer is doing is this:
> I have xinerama running (actually twinview on a GForce4---yes, I'm a bad boy :-)
> and the MPlayer window is starting up on the 2nd screen (1280x1024)
> horizonally squashed to fit.  Under other circumstances, i.e. with
> my 1280x1024 yuv sequences MPlayer starts up on the first screen and
> does no scaling.

Hmm, are you using -xineramascreen and/or -monitoraspect options to
mplayer? You might try playing with them...

> So how do I tell MPlayer to just play the data, unmolested.
> Since I am doing human visual system experiements which involve
> exact knowledge of the spatial freq. content of the sequence, the
> last thing I want is for scaling filters to muck up my data.

Then use -vo x11 and you'll be guaranteed no filters. And if you have
a 3 GHz Athlon you might even be able to get a whole 10fps... :))


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