Se você quiser usar o MPlayer a partir da linha de comando sem compilá-lo, varra o pacote do aplicativo MPlayer Extended. Olha o que eu encontrei em
/Applications/MPlayer\ OSX\ Extended.app/Contents/Resources/Binaries/mpextended.mpBinaries/Contents/mpextended-mt.mpBinaries/Contents/MacOS/mplayer
theBook:~ lennart$ /Applications/MPlayer\ OSX\ Extended.app/Contents/Resources/Binaries/mpextended.mpBinaries/Contents/mpextended-mt.mpBinaries/Contents/MacOS/mplayer -v
MPlayer SVN-r30478-4.2.1 (C) 2000-2010 MPlayer Team
CPU vendor name: GenuineIntel max cpuid level: 13
CPU: Intel(R) Core(TM)2 Duo CPU P8600 @ 2.40GHz (Family: 6, Model: 23, Stepping: 10)
extended cpuid-level: 8
extended cache-info: 201351232
Detected cache-line size is 64 bytes
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNowExt: 0 SSE: 1 SSE2: 1 SSSE3: 1
Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2 SSSE3 CMOV
get_path('codecs.conf') -> '/Applications/MPlayer OSX Extended.app/Contents/Resources/Binaries/mpextended.mpBinaries/Contents/mpextended-mt.mpBinaries/Contents/Resources/codecs.conf'
Reading /Applications/MPlayer OSX Extended.app/Contents/Resources/Binaries/mpextended.mpBinaries/Contents/mpextended-mt.mpBinaries/Contents/Resources/codecs.conf: Can't open '/Applications/MPlayer OSX Extended.app/Contents/Resources/Binaries/mpextended.mpBinaries/Contents/mpextended-mt.mpBinaries/Contents/Resources/codecs.conf': No such file or directory
Reading /Users/adrian/dev/mplayer/mplayer/usrs/local/etc/mplayer/codecs.conf: Can't open '/Users/adrian/dev/mplayer/mplayer/usrs/local/etc/mplayer/codecs.conf': No such file or directory
Using built-in default codecs.conf.
Usage: mplayer [options] [url|path/]filename
Basic options: (complete list in the man page)
-vo <drv> select video output driver ('-vo help' for a list)
-ao <drv> select audio output driver ('-ao help' for a list)
vcd://<trackno> play (S)VCD (Super Video CD) track (raw device, no mount)
dvd://<titleno> play DVD title from device instead of plain file
-alang/-slang select DVD audio/subtitle language (by 2-char country code)
-ss <position> seek to given (seconds or hh:mm:ss) position
-nosound do not play sound
-fs fullscreen playback (or -vm, -zoom, details in the man page)
-x <x> -y <y> set display resolution (for use with -vm or -zoom)
-sub <file> specify subtitle file to use (also see -subfps, -subdelay)
-playlist <file> specify playlist file
-vid x -aid y select video (x) and audio (y) stream to play
-fps x -srate y change video (x fps) and audio (y Hz) rate
-pp <quality> enable postprocessing filter (details in the man page)
-framedrop enable frame dropping (for slow machines)
Basic keys: (complete list in the man page, also check input.conf)
<- or -> seek backward/forward 10 seconds
down or up seek backward/forward 1 minute
pgdown or pgup seek backward/forward 10 minutes
< or > step backward/forward in playlist
p or SPACE pause movie (press any key to continue)
q or ESC stop playing and quit program
+ or - adjust audio delay by +/- 0.1 second
o cycle OSD mode: none / seekbar / seekbar + timer
* or / increase or decrease PCM volume
x or z adjust subtitle delay by +/- 0.1 second
r or t adjust subtitle position up/down, also see -vf expand
* * * SEE THE MAN PAGE FOR DETAILS, FURTHER (ADVANCED) OPTIONS AND KEYS * * *