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SLAVE MODE PROTOCOL
-------------------
The -slave option switches on slave mode, in which MPlayer works as a backend
for other programs. Instead of intercepting keyboard events, MPlayer will read
commands separated by a newline (\n) from stdin.
To try slave mode out by hand, run
mplayer -slave -quiet <movie>
and type slave commands into the console window.
Most slave mode commands are equivalent to command line options, though not
necessarily under the same name. Detailed descriptions can be found in the
man page.
All commands can be prefixed with "pausing ", causing MPlayer to pause as soon
as possible after processing the command. Please note that this can be before
the command is fully executed.
Available commands ('mplayer -input cmdlist' will print a list):
seek <value> [<type>]
Seek to some place in the movie.
0 is a relative seek of +/- <value> seconds (default).
1 is a seek to <value> % in the movie.
2 is a seek to an absolute position of <value> seconds.
speed_set <value>
Set the speed to <value>.
speed_incr <value>
Add <value> to the current playback speed.
speed_mult <value>
Multiply the current speed by <value>.
edl_mark
Write the current position into the EDL file.
audio_delay <value>
Adjust the audio delay by <value> seconds.
quit [<value>]
Quit MPlayer. The optional integer value is used as the return code
for the mplayer process (default: 0).
pause
Pause/unpause the playback.
frame_step
Play one frame, then pause again.
grab_frames
Currently unimplemented.
pt_step <value> [<force>]
Go to the next/previous entry in the playtree. The sign of <value> tells
the direction. If no entry is available in the given direction it will do
nothing unless force is non-zero.
pt_up_step <value> [<force>]
Similar to pt_step but jumps to the next/previous entry in the parent list.
Useful to break out of the inner loop in the playtree.
alt_src_step <value> (ASX playlist only)
When more than one source is available it selects the next/previous one.
sub_delay <value> [<abs>]
Adjust the subtitle delay by +/- <value> seconds or set it to <value>
seconds when <abs> is nonzero.
sub_step <value>
Step forward in the subtitle list by <value> steps or backwards if <value>
is negative.
osd [<level>]
Toggle OSD mode or set it to level when <level> >= 0.
osd_show_text <string>
Show <string> on the OSD.
volume <value>
Increase/decrease volume.
use_master
Switch volume control between master and PCM.
mute
Mute/unmute sound output.
switch_audio [<value>] (MPEG and Matroska only)
Switch to the audio track with the id <value>. Cycle through the
available tracks if <value> is omitted or negative.
[contrast|gamma|brightness|hue|saturation] <-100 - 100> [<abs>]
Set/adjust video parameters.
frame_drop [<value>]
Toggle/set frame dropping mode.
sub_pos <value>
Adjust subtitle position.
sub_alignment <value>
Set subtitle alignment.
sub_visibility
Toggle subtitle visibility.
get_sub_visibility
Print out subtitle visibility (1 == on, 0 == off).
sub_select [<value>]
Display subtitle with index <value>. Turn subtitle display off if
<value> is -1 or greater than the highest available subtitle index.
Cycle through the available subtitles if <value> is omitted or less
than -1. Supported subtitle sources are -sub options on the command
line, VOBsubs, DVD subtitles, and Ogg and Matroska text streams.
sub_log
Logs the current or last displayed subtitle together with filename
and time information to ~/.mplayer/subtitle_log. Intended purpose
is to allow convenient marking of bogus subtitles which need to be
fixed while watching the movie.
vobsub_lang
This is a stub linked to sub_select for backwards compatibility.
get_percent_pos
Print out the current position in the file, as integer percentage [0-100).
get_time_length
Print out the length of the current file in seconds.
vo_fullscreen
Switch to fullscreen mode.
get_vo_fullscreen
Print out fullscreen status (1 == fullscreened, 0 == windowed).
vo_ontop
Toggle stay-on-top.
vo_rootwin
Toggle playback on the root window.
switch_vsync [<value>]
Toggle vsync (1 == on, 0 == off). If no value is provided,
vsync status is inverted.
switch_ratio [<value>]
Change aspect ratio at runtime. Value is the new aspect ratio expressed
as a float (e.g. 1.77778 for 16/9).
There might be problems with some video filters.
panscan <-1.0 - 1.0> | <0.0 - 1.0> <absolute>
Increase or decrease the pan-and-scan range by <value>, 1.0 is the maximum.
Negative values decrease the pan-and-scan range.
If <absolute> is != 0, then the pan-and scan range is interpreted as an
absolute range.
loadfile <file|url>
Load the given file/URL.
loadlist <file>
Load the given playlist file.
change_rectangle <val1> <val2>
Change the position of the rectangle filter rectangle.
<val1>
Must be one of the following:
0 = width
1 = height
2 = x position
3 = y position
<val2>
If <val1> is 0 or 1:
Integer amount to add/subtract from the width/height.
Positive values add to width/height and negative values
subtract from it.
If <val1> is 2 or 3:
Relative integer amount by which to move the upper left
rectangle corner. Positive values move the rectangle
right/down and negative values move the rectangle left/up.
dvdnav <button>
Press the given dvdnav button.
1 up
2 down
3 left
4 right
5 menu
6 select
dvdnav_event <value>
Send <value> as DVDNAV event. DVDNAV support in MPlayer is disabled.
tv_step_channel <channel>
Select next/previous TV channel.
tv_step_norm
Change TV norm.
tv_step_chanlist
Change channel list.
tv_set_channel <channel>
Set the current TV channel.
tv_last_channel
Set the current TV channel to the last one.
tv_set_freq <frequency in MHz>
Set the TV tuner frequency.
tv_set_norm <norm>
Set the TV tuner norm (PAL, SECAM, NTSC, ...).
tv_set_brightness <-100 - 100>
Set TV tuner brightness.
tv_set_contrast <-100 -100>
Set TV tuner contrast.
tv_set_hue <-100 - 100>
Set TV tuner hue.
tv_set_saturation <-100 - 100>
Set TV tuner saturation.
gui_[loadfile|loadsubtitle|about|play|stop|gui_playlist|gui_preferences|skinbrowser]
GUI actions
forced_subs_only
Display forced subtitles only.
dvb_set_channel <channel_number> <card_number>
Set DVB channel.
screenshot
Take a screenshot. Currently not implemented in any video output driver.
menu <command>
Execute an OSD menu command.
up Move cursor up.
down Move cursor down.
ok Accept selection.
cancel Cancel selection.
hide Hide the OSD menu.
set_menu <menu_name>
Display the menu named <menu_name>.
The following commands are really only useful for OSD menu console mode:
help
Displays help text, currently empty.
exit
Exits from OSD menu console. Unlike 'quit', does not quit MPlayer.
hide
Hides the OSD menu console. Clicking a menu command unhides it. Other
keybindings act as usual.
run <value>
Run <value> as shell command. In OSD menu console mode stdout and stdin
are through the video output driver.
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