I like to set the volume of mplayer to 28% of the volume instead of the 100% which is too large for me. And I also want mplayer to put to video window on the left top of the screen.
This is the method:
Add these lines to the ~/.mplayer/config file:
For setting the startup default volume:
volume=28
For setting the startup position to (0,0) (top left):
geometry=0:0
