MPlayer aspect ratio

[nic3]

I want Mplayer to start allways with 16:9 aspect ratio.
But even if i change "monitor aspect" to 16:9 this option is not saved.
Any solution to force this AR when Mplayer open any file or url?

[intracube]

Are you familiar with Mplayer's config file? Add the following to it, on a new line:
vf=dsize=16/9

The location of the config file will be different depending on the OS you're using. Under Linux, it's located at $HOME/.mplayer/config. I'm trying to find out where it is for Windows users.

What OS are you running?

EDIT: From this page:
http://wiki.multimedia.cx/index.php?title=MPlayer_FAQ
- 'on windows its in the mplayer directory where mplayer.exe is. for example c:\mplayer\mplayer.exe the config is c:\mplayer\mplayer\config'

[nic3]

I've tried to add this line in many combinations: on top, under video filtering, new line, but had no effect.

[intracube]

You've got a # symbol at the beginning of the line. Lines beginning with at least one # are interpreted as:
- a user comment and are ignored by the program
- they can also be used to disable a configuration option without having to delete the line from the config file

##vf=dsize=16/9 is invisible to Mplayer - remove both hashes.

If you want to add more video filter options to the config file, you can chain them together as one line with commas between them:
vf=dsize=16/9,flip,eq2=1:1:0:0
This example controls the aspect ratio, flips the image upside down and desaturates the image.

Adding multiple vf options on more than one line won't work properly:
vf=dsize=16/9
vf=flip
vf=eq2=1:1:0:0
In this example the third 'vf' option will override the previous ones.

EDIT: By setting the aspect ratio to 16/9 in the config file, all videos will be formatted to it - 4:3 videos will be s-t-r-e-t-c-h-e-d horizontally.

What's the reason for forcing all videos to 16/9? If you're trying to correct an individual video with the wrong aspect ratio, it should be possible to temporarily change the picture format via a menu option.

[nic3]

EDIT: By setting the aspect ratio to 16/9 in the config file, all videos will be formatted to it - 4:3 videos will be s-t-r-e-t-c-h-e-d horizontally.

What's the reason for forcing all videos to 16/9? If you're trying to correct an individual video with the wrong aspect ratio, it should be possible to temporarily change the picture format via a menu option.

I'm watching tv on pc via sopcast but all channels are in 4:3 AR.
With VLC or Mplayer the image quality is better (postprocessing) and all channels can be watched in full screen on 16:9 without any distortions.

I've assigned a key for quick change between 4:3 and 16:9

Thanks for answers.