[mythtv-users] How to scale MAME for 16:9?
bryan at terralab.com
Fri May 13 20:11:40 UTC 2005
I've had overscan issues with MAME which are not too far removed from
what you are experiencing. I solved my problems by having MythTV
display the GUI in 640x480 resolution, while running videos at their
appropriate native resolutions (720p, 1080i, 480ip, etc.). You can
change what resolution the GUI runs in in your appearance settings menu.
I chose 640x480 because it gave me the least overscan and allowed my TV
to control how 4:3 was mapped to the 16:9 format. My experience has
been that my TV is better at it than myth, mplayer, and mame are by a
long shot. :)
John Clabaugh wrote:
> I've recently received my 16:9 aspect TV and I am trying to get MAME
> to scale properly. It currently looks like a 16:9 image squished
> inside a 4:3 frame running on a 16:9 TV. Not pretty. I have read
> several man pages and I see there is a "displayaspectratio 1.77"
> option that looks like it should do the trick. Unfortunately when I
> add this to the "Extras" field in the default options, MAME refuses to
> start. Here's a sample command line:
> /usr/bin/xmame -rompath /htpc/games/mame/roms -cheat_file
> /htpc/games/mame/cheats -history_file
> /htpc/games/mame/history/history.dat -snapshot_directory
> /htpc/games/mame/screens -hiscore_directory /htpc/games/mame/hiscores
> -hiscore_file /htpc/games/mame/hiscores/hiscore.dat -skip_disclaimer
> -skip_gameinfo -video-mode 0 -noartwork -noautoframeskip -bpp 0 -scale
> 1 -antialias -notranslucency -analogstick -nowinkeys -nograbmouse
> -joytype 4 -samples -volume -16 -nocheat -displayaspectratio 1.77
> I'm guessing that there is a certain combination of "scale",
> "video-mode", "keepaspect", and "displayaspectratio" that needs to be
> correct before it will fly.
> I have "DisplaySize" set to a 16:9 ratio in my xorg.conf and I'm
> running at 1280x720. Thank you in advance for your help.
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