[MPlayer-users] Monitor Aspect Ratio

[D Richard Felker III]

On Fri, Oct 17, 2003 at 11:06:47PM -0400, Doug Carman wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
                     ^^^^
> I have been working on compiling MPlayer 1.0pre1 for the Dell Inspiron
> 8500 laptop.  The system is running RedHat 9, and has the ATI Radeon M9
> chipset with the wide aspect ratio 330mm x 210mm LCD display.
> 
> This configuration requires a custom mode line in the XF86Config file to
> support 1680x1050 resolution, and requires the option DisplaySize to be
> set to "330 210".
> 
> While viewing a DVD, I noticed that the aspect ratio was wrong when
> viewing full screen, but appeared to be correct when viewing in a window.
> 
> After hunting through the source code, found the following in libvo/aspec.c:
> 
> float monitor_aspect=4.0/3.0;
> 
> This appears to hard code the monitor aspect ratio to 4:3 regardless of
> what the hardware might actually be.  While changing monitor_aspect to
> 3.3/2.1 solves my problem, I have to believe that there is a better way to
> do this either by using the XFree configuration or at least making it a
                                                              ^^^^^^^^^^^
> configurable parameter.  More and more new systems are making the
  ^^^^^^^^^^^^^^^^^^^^^^

Use -monitoraspect!

Using the physical size from the X server is unacceptable since it's
often (at least slightly) wrong, and will mess things up in the (much
more common) case where aspect should be exact 4:3.

Rich