mplayer keyboard shortcuts

<- and ->                               Seek backward/forward 10 seconds.
up and down                             Seek forward/backward 1 minute.
pgup and pgdown                         Seek forward/backward 10 minutes.
[ and ]                                 Decrease/increase current playback speed by 10%.
{ and }                                 Halve/double current playback speed.
backspace                               Reset playback speed to normal.
< and >                                 Go backward/forward in the playlist.
ENTER                                   Go forward in the playlist, even over the end.
HOME and END                            next/previous playtree entry in the parent list
INS and DEL (ASX playlist only)         next/previous alternative source.
p / SPACE                               Pause (pressing again unpauses).
.                                       Step forward. Pressing once will pause movie, every consecutive press will play one frame and then go into pause mode again (any other key unpauses).
q / ESC                                 Stop playing and quit.
+ and -                                 Adjust audio delay by +/- 0.1 seconds.
/ and *                                 Decrease/increase volume.
9 and 0                                 Decrease/increase volume.
( and )                                 Adjust audio balance in favor of left/right channel.
m                                       Mute sound.
_ (MPEG-TS and libavformat only)        Cycle through the available video tracks.

# (DVD, MPEG, Matroska, AVI and libavformat only) Cycle through the available audio tracks.
TAB (MPEG-TS only)                      Cycle through the available programs.
f                                       Toggle fullscreen (also see -fs). 

T                                       Toggle stay-on-top (also see -ontop).
w and e                                 Decrease/increase pan-and-scan range.
o                                       Toggle OSD states: none / seek / seek + timer / seek + timer + total time.
d                                       Toggle frame dropping states: none / skip display / skip decoding (see -framedrop and -hardframedrop).
v                                       Toggle subtitle visibility.
j                                       Cycle through the available subtitles.
y and g                                 Step forward/backward in the subtitle list.
F                                       Toggle displaying forced subtitles .
a                                       Toggle subtitle alignment: top / middle / bottom.
x and z                                 Adjust subtitle delay by +/- 0.1 seconds.
r and t                                 Move subtitles up/down.
i (-edlout mode only)                   Set start or end of an EDL skip and write it out to the given file.
s (-vf screenshot only)                 Take a screenshot.
S (-vf screenshot only)                 Start/stop taking screenshots.
I                                       Show filename on the OSD.
! and @                                 Seek to the beginning of the previous/next chapter.
D (-vo xvmc, -vf yadif, -vf kerndeint only) Activate/deactivate deinterlacer.

1 and 2                                 Adjust contrast.
3 and 4                                 Adjust brightness.
5 and 6                                 Adjust hue.
7 and 8                                 Adjust saturation.