Provided by:
mencoder_0.99+1.0pre7try2+cvs20060117-0ubuntu8_i386 
NAME
mplayer - movie player
mencoder - movie encoder
SYNOPSIS
mplayer [options] [ file | URL | playlist | - ]
mplayer [global options] file1 [specific options] [file2] [specific
options]
mplayer [global options] {group of files and options} [group specific
options]
mplayer dvd://[title | [start_title]-end_title ] [options]
mplayer vcd://track[/device]
mplayer tv://[channel] [options]
mplayer dvb://[card_number@]channel [options]
mplayer mf://filemask [-mf options] [options]
mplayer [cdda|cddb]://track[-endtrack][:speed][/device] [options]
mplayer cue://file[:track] [options]
mplayer [file|mms[t]|http|http_proxy|rt[s]p|ftp|udp|unsv]://
[user:passwd@]URL[:port] [options]
mplayer sdp://file [options]
mplayer mpst://host[:port]/URL [options]
mplayer tivo://host/list [options]
mplayer tivo://host/llist [options]
mplayer tivo://host/fsid [options]
gmplayer [options] [-skin skin]
mencoder [options] [ file | URL | - ] [-o file]
mencoder [global options] file1 [specific options] [file2] [specific
options]
DESCRIPTION
mplayer is a movie player for Linux (runs on many other platforms and
CPU architectures, see the documentation). It plays most MPEG/VOB,
AVI, ASF/WMA/WMV, RM, QT/MOV/MP4, Ogg/OGM, MKV, VIVO, FLI, NuppelVideo,
yuv4mpeg, FILM and RoQ files, supported by many native and binary
codecs. You can watch Video CD, SVCD, DVD, 3ivx, DivX 3/4/5 and even
WMV movies, too.
MPlayer supports a wide range of video and audio output drivers. It
works with X11, Xv, DGA, OpenGL, SVGAlib, fbdev, AAlib, libcaca,
DirectFB, Quartz, Mac OS X CoreVideo, but you can also use GGI, SDL
(and all their drivers), VESA (on every VESA-compatible card, even
without X11), some low-level card-specific drivers (for Matrox, 3dfx
and ATI) and some hardware MPEG decoder boards, such as the Siemens
DVB, DXR2 and DXR3/Hollywood+. Most of them support software or
hardware scaling, so you can enjoy movies in fullscreen mode.
MPlayer has an onscreen display (OSD) for status information, nice big
antialiased shaded subtitles and visual feedback for keyboard controls.
European/ISO 8859-1,2 (Hungarian, English, Czech, etc), Cyrillic and
Korean fonts are supported along with 12 subtitle formats (MicroDVD,
SubRip, OGM, SubViewer, Sami, VPlayer, RT, SSA, AQTitle, JACOsub, PJS
and our own: MPsub) and DVD subtitles (SPU streams, VOBsub and Closed
Captions).
mencoder (MPlayer’s Movie Encoder) is a simple movie encoder, designed
to encode MPlayer-playable movies (see above) to other MPlayer-playable
formats (see below). It encodes to MPEG-4 (DivX/XviD), one of the
libavcodec codecs and PCM/MP3/VBRMP3 audio in 1, 2 or 3 passes.
Furthermore it has stream copying abilities, a powerful filter system
(crop, expand, flip, postprocess, rotate, scale, noise, RGB/YUV
conversion) and more.
gmplayer is MPlayer with a graphical user interface. It has the same
options as MPlayer.
Usage examples to get you started quickly can be found at the end of
this man page.
Also see the HTML documentation!
INTERACTIVE CONTROL
MPlayer has a fully configurable, command-driven control layer which
allows you to control MPlayer using keyboard, mouse, joystick or remote
control (with LIRC). See the -input option for ways to customize it.
keyboard control
<- and ->
Seek backward/forward 10 seconds.
up and down
Seek backward/forward 1 minute.
pgup and pgdown
Seek backward/forward 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.
m
Mute sound.
# (MPEG and Matroska only)
Cycle through the available audio tracks.
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.
b / 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
Set EDL mark.
s (screenshot filter must be loaded)
Take a screenshot.
(The following keys are valid only when using a hardware
accelerated video output (xv, (x)vidix, (x)mga, etc), the
software equalizer (-vf eq or -vf eq2) or hue filter (-vf hue).
1 and 2
Adjust contrast.
3 and 4
Adjust brightness.
5 and 6
Adjust hue.
7 and 8
Adjust saturation.
(The following keys are valid only when using the quartz or
macosx video output driver.)
command + 0
Resize movie window to half its original size.
command + 1
Resize movie window to its original size.
command + 2
Resize movie window to double its original size.
command + f
Toggle fullscreen (also see -fs).
command + [ and command + ]
Set movie window alpha.
(The following keys are valid if you have a keyboard with
multimedia keys.)
PAUSE
Pause.
STOP
Stop playing and quit.
PREVIOUS and NEXT
Seek backward/forward 1 minute.
(The following keys are only valid if GUI support is compiled in
and will take precedence over the keys defined above.)
ENTER
Start playing.
ESC
Stop playing.
l
Load file.
t
Load subtitle.
c
Open skin browser.
p
Open playlist.
r
Open preferences.
(The following keys are only valid if you compiled with TV input
support and will take precedence over the keys defined above.)
h and k
Select previous/next channel.
n
Change norm.
u
Change channel list.
mouse control
button 3 and button 4
Seek backward/forward 1 minute.
button 5 and button 6
Decrease/increase volume.
joystick control
left and right
Seek backward/forward 10 seconds.
up and down
Seek backward/forward 1 minute.
button 1
pause
button 2
Toggle OSD states: none / seek / seek + timer / seek +
timer + total time.
button 3 and button 4
Decrease/increase volume.
USAGE
Every ’flag’ option has a ’noflag’ counterpart, e.g. the opposite of
the -fs option is -nofs.
If an option is marked as (XXX only), it will only work in combination
with the XXX option or if XXX is compiled in.
NOTE: The suboption parser (used for example for -ao pcm suboptions)
supports a special kind of string-escaping intended for use with
external GUIs.
It has the following format:
%n%string_of_length_n
EXAMPLES:
mplayer -ao pcm:file=%10%C:test.wav test.avi
Or in a script:
mplayer -ao pcm:file=%‘expr length "$NAME"‘%"$NAME" test.avi
CONFIGURATION FILES
You can put all of the options in configuration files which will be
read every time MPlayer/MEncoder is run. The system-wide configuration
file ’mplayer.conf’ is in your configuration directory (e.g. /etc/
mplayer or /usr/local/etc/mplayer), the user specific one is ’~/
.mplayer/config’. The configuration file for MEncoder is
’mencoder.conf’ in your configuration directory (e.g. /etc/mplayer or
/usr/local/etc/mplayer), the user specific one is ’~/.mplayer/mencoder.
User specific options override system-wide options and options given on
the command line override either. The syntax of the configuration
files is ’option=<value>’, everything after a ’#’ is considered a
comment. Options that work without values can be enabled by setting
them to ’yes’ or ’1’ or ’true’ and disabled by setting them to ’no’ or
’0’ or ’false’. Even suboptions can be specified in this way.
EXAMPLE MPLAYER CONFIGURATION FILE:
# Use Matrox driver by default.
vo=xmga
# I love practicing handstands while watching videos.
flip=yes
# Decode/encode multiple files from png,
# start with mf://filemask
mf=type=png:fps=25
# Eerie negative images are cool.
vf=eq2=1.0:-0.8
EXAMPLE MENCODER CONFIGURATION FILE:
# Make MEncoder output to a default filename.
o=encoded.avi
# The next 4 lines allow mencoder tv:// to start capturing immediately.
oac=pcm=yes
ovc=lavc=yes
lavcopts=vcodec=mjpeg
tv=driver=v4l2:input=1:width=768:height=576:device=/dev/video0:audiorate=48000
# more complex default encoding option set
lavcopts=vcodec=mpeg4:autoaspect=1
lameopts=aq=2:vbr=4
ovc=lavc=1
oac=lavc=1
passlogfile=pass1stats.log
noautoexpand=1
subfont-autoscale=3
subfont-osd-scale=6
subfont-text-scale=4
subalign=2
subpos=96
spuaa=20
You can also write file-specific configuration files. If you wish to
have a configuration file for a file called ’movie.avi’, create a file
named ’movie.avi.conf’ with the file-specific options in it and put it
in ~/.mplayer/ or in the same directory as the file.
GENERAL OPTIONS
-codecs-file <filename> (also see -afm, -ac, -vfm, -vc)
Override the standard search path and use the specified file
instead of the builtin codecs.conf.
-include <configuration file>
Specify configuration file to be parsed after the default ones.
-msglevel <all=<level>:<module>=<level>:...>
Control verbosity directly for each module. The ’all’ module
changes the verbosity of all the modules not explicitly
specified on the command line. See ’-msglevel help’ for a list
of all modules.
NOTE: Messages printed before the command line is loaded cannot
be controlled.
Available levels:
-1 complete silence
0 fatal messages only
1 error messages
2 warning messages
3 short hints
4 informational messages
5 status messages (those hidden by -quiet)
6 verbose messages
7 debug level 2
8 debug level 3
9 debug level 4
-quiet
Make console output less verbose; in particular, prevents the
status line (i.e. A: 0.7 V: 0.6 A-V: 0.068 ...) from being
displayed. Particularly useful on slow terminals or broken ones
which do not properly handle carriage return (i.e.
).
-priority <prio> (Windows only)
Set process priority for MPlayer according to the predefined
priorities available under Windows. Possible values of <prio>:
idle|belownormal|normal|abovenormal|high|realtime
WARNING: Using realtime priority can cause system lockup.
-really-quiet (also see -quiet)
Display even less output and status messages than with -quiet.
-v
Increment verbosity level, one level for each -v found on the
command line.
PLAYER OPTIONS (MPLAYER ONLY)
-autoq <quality> (use with -vf [s]pp)
Dynamically changes the level of postprocessing depending on the
available spare CPU time. The number you specify will be the
maximum level used. Usually you can use some big number. You
have to use -vf [s]pp without parameters in order for this to
work.
-autosync <factor>
Gradually adjusts the A/V sync based on audio delay
measurements. Specifying -autosync 0, the default, will cause
frame timing to be based entirely on audio delay measurements.
Specifying -autosync 1 will do the same, but will subtly change
the A/V correction algorithm. An uneven video framerate in a
movie which plays fine with -nosound can often be helped by
setting this to an integer value greater than 1. The higher the
value, the closer the timing will be to -nosound. Try
-autosync 30 to smooth out problems with sound drivers which do
not implement a perfect audio delay measurement. With this
value, if large A/V sync offsets occur, they will only take
about 1 or 2 seconds to settle out. This delay in reaction time
to sudden A/V offsets should be the only side-effect of turning
this option on, for all sound drivers.
-benchmark
Prints some statistics on CPU usage and dropped frames at the
end of playback. Use in combination with -nosound and -vo null
for benchmarking only the video codec.
NOTE: With this option MPlayer will also ignore frame duration
when playing only video (you can think of that as infinite fps).
-colorkey <number>
Changes the colorkey to an RGB value of your choice. 0x000000
is black and 0xffffff is white. Only supported by the cvidix,
fbdev, svga, vesa, winvidix, xmga, xvidix, xover, xv (see -vo
xv:ck), xvmc (see -vo xv:ck) and directx video output drivers.
-nocolorkey
Disables colorkeying. Only supported by the cvidix, fbdev,
svga, vesa, winvidix, xmga, xvidix, xover, xv (see -vo xv:ck),
xvmc (see -vo xv:ck) and directx video output drivers.
-crash-debug (DEBUG CODE)
Automatically attaches gdb upon crash or SIGTRAP. Support must
be compiled in by configuring with --enable-crash-debug or by
having a .developer file in the source tree.
-edlout <filename> (EDL only)
Creates a new file and writes edit decision list (EDL) records
to that file. During playback, when the user hits ’i’, an entry
to skip over the last two seconds of playback will be written to
the file. This provides a starting point from which the user
can fine-tune EDL entries later. See DOCS/HTML/en/edl.html for
details.
-enqueue (GUI only)
Enqueue files given on the command line in the playlist instead
of playing them immediately.
-fixed-vo (BETA CODE!)
Enforces a fixed video system for multiple files (one
(un)initialization for all files). Therefore only one window
will be opened for all files. Currently the following drivers
are fixed-vo compliant: gl, gl2, mga, svga, x11, xmga, xv,
xvidix and dfbmga.
-framedrop (also see -hardframedrop)
Skip displaying some frames to maintain A/V sync on slow
systems. Video filters are not applied to such frames. For B-
frames even decoding is skipped completely.
-h, -help, --help
Show short summary of options.
-hardframedrop
More intense frame dropping (breaks decoding). Leads to image
distortion!
-identify
Show file parameters in an easily parseable format. Also prints
more detailed information about subtitle and audio track
languages and IDs. The wrapper script TOOLS/midentify
suppresses the other MPlayer output and (hopefully) shellescapes
the filenames.
-idle (also see -slave)
Makes MPlayer wait idly instead of quitting when there is no
file to play. Mostly useful in slave mode where MPlayer can be
controlled through input commands.
-input <commands>
This option can be used to configure certain parts of the input
system. Paths are relative to ~/.mplayer/.
NOTE: Autorepeat is currently only supported by joysticks.
Available commands are:
conf=<filename>
Specify input configuration file other than the default
~/.mplayer/input.conf. ~/.mplayer/<filename> is assumed
if no full path is given.
ar-delay
Delay in milliseconds before we start to autorepeat a
key (0 to disable).
ar-rate
Number of key presses to generate per second on
autorepeat.
keylist
Prints all keys that can be bound to commands.
cmdlist
Prints all commands that can be bound to keys.
js-dev
Specifies the joystick device to use (default: /dev/
input/js0).
file=<filename>
Read commands from the given file. Mostly useful with a
FIFO.
NOTE: When the given file is a FIFO MPlayer opens both
ends so you can do several ’echo "seek 10" > mp_pipe’
and the pipe will stay valid.
-key-fifo-size <2-65000>
Specify the size of the FIFO that buffers key events (default:
10). A FIFO of size n can buffer (n-1) events. If it is too
small some events may be lost (leading to "stuck mouse buttons"
and similar effects). If it is too big, MPlayer may seem to
hang while it processes the buffered events. To get the same
behavior as before this option was introduced, set it to 2 for
Linux or 1024 for Windows.
-lircconf <filename> (LIRC only)
Specifies a configuration file for LIRC (default: ~/.lircrc).
-list-options
Prints all available options.
-loop <number>
Loops movie playback <number> times. 0 means forever.
-menu (OSD menu only)
Turn on OSD menu support.
-menu-cfg <filename> (OSD menu only)
Use an alternative menu.conf.
-menu-root <value> (OSD menu only)
Specify the main menu.
-menu-startup (OSD menu only)
Display the main menu at MPlayer startup.
-noconsolecontrols
Prevent MPlayer from reading key events from standard input.
Useful when reading data from standard input. This is
automatically enabled when - is found on the command line.
There are situations where you have to set it manually, e.g. if
you open /dev/stdin (or the equivalent on your system), use
stdin in a playlist or intend to read from stdin later on via
the loadfile or loadlist slave commands.
-nojoystick
Turns off joystick support.
-nolirc
Turns off LIRC support.
-nomouseinput (X11 only)
Disable mouse button press/release input (mozplayerxp’s context
menu relies on this option).
-nortc (RTC only)
Turns off usage of the Linux RTC (realtime clock - /dev/rtc) as
timing mechanism.
-playlist <filename>
Play files according to a playlist file (ASX, Winamp, SMIL, or
one-file-per-line format).
NOTE: This option is considered an entry so options found after
it will apply only to the elements of this playlist.
FIXME: This needs to be clarified and documented thoroughly.
-rtc-device <device>
Use the specified device for RTC timing.
-shuffle
Play files in random order.
-skin <name> (GUI only)
Loads a skin from the directory given as parameter below the
default skin directories, /usr/local/share/mplayer/Skin/ and
~/.mplayer/Skin/.
EXAMPLE:
-skin fittyfene
Tries /usr/local/share/mplayer/Skin/fittyfene and
afterwards ~/.mplayer/Skin/fittyfene.
-slave (also see -input)
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 (
) from
stdin.
NOTE: See -input cmdlist for a list of slave commands and
DOCS/tech/slave.txt for their description.
-softsleep
Use high-quality software timers instead of the RTC. As precise
as the RTC without requiring special privileges. Comes at the
price of higher CPU consumption.
-sstep <sec>
Skip <sec> seconds after every frame. The normal framerate of
the movie is kept, so playback is accelerated. Since MPlayer
can only seek to the next keyframe this may be inexact.
DEMUXER/STREAM OPTIONS
-a52drc <level>
Select the Dynamic Range Compression level for AC3 audio
streams. <level> is a float value ranging from 0 to 1, where 0
means no compression and 1 (which is the default) means full
compression (make loud passages more silent and vice versa).
This option only shows an effect if the AC3 stream contains the
required range compression information.
-aid <ID> (also see -alang)
Select audio channel (MPEG: 0-31, AVI/OGM: 1-99, ASF/RM: 0-127,
VOB(AC3): 128-159, VOB(LPCM): 160-191, MPEG-TS 17-8190).
MPlayer prints the available audio IDs when run in verbose (-v)
mode. When playing an MPEG-TS stream, MPlayer/MEncoder will use
the first program (if present) with the chosen audio stream.
-alang <language code[,language code,...]> (also see -aid)
Specify a priority list of audio languages to use. Different
container formats employ different language codes. DVDs use ISO
639-1 two letter language codes, Matroska and NUT use ISO 639-2
three letter language codes while OGM uses a free-form
identifier. MPlayer prints the available languages when run in
verbose (-v) mode.
EXAMPLE:
mplayer dvd://1 -alang hu,en
Chooses the Hungarian language track on a DVD and falls
back on English if Hungarian is not available.
mplayer -alang jpn example.mkv
Plays a Matroska file in Japanese.
-audio-demuxer <[+]name> (-audiofile only)
Force audio demuxer type for -audiofile. Use a ’+’ before the
name to force it, this will skip some checks! Give the demuxer
name as printed by -audio-demuxer help. For backward
compatibility it also accepts the demuxer ID as defined in
libmpdemux/demuxer.h. -audio-demuxer audio or -audio-demuxer 17
forces MP3.
-audiofile <filename>
Play audio from an external file (WAV, MP3 or Ogg Vorbis) while
viewing a movie.
-audiofile-cache <kBytes>
Enables caching for the stream used by -audiofile, using the
specified amount of memory.
-bandwidth <value> (network only)
Specify the maximum bandwidth for network streaming (for servers
that are able to send content in different bitrates). Useful if
you want to watch live streamed media behind a slow connection.
With Real RTSP streaming, it is also used to set the maximum
delivery bandwidth allowing faster cache filling and stream
dumping.
-cache <kBytes>
This option specifies how much memory (in kBytes) to use when
precaching a file or URL. Especially useful on slow media.
-cache-min <percentage>
Playback will start when the cache has been filled up to
<percentage> of the total.
-cache-seek-min <percentage>
If a seek is to be made to a position within <percentage> of the
cache size from the current position, MPlayer will wait for the
cache to be filled to this position rather than performing a
stream seek (default: 50).
-cdda <option1:option2> (CDDA only)
This option can be used to tune the CD Audio reading feature of
MPlayer.
Available options are:
speed=<value>
Set CD spin speed.
paranoia=<0-2>
Set paranoia level. Values other than 0 seem to break
playback of anything but the first track.
0: disable checking (default)
1: overlap checking only
2: full data correction and verification
generic-dev=<value>
Use specified generic SCSI device.
sector-size=<value>
Set atomic read size.
overlap=<value>
Force minimum overlap search during verification to
<value> sectors.
toc-bias
Assume that the beginning offset of track 1 as reported
in the TOC will be addressed as LBA 0. Some Toshiba
drives need this for getting track boundaries correct.
toc-offset=<value>
Add <value> sectors to the values reported when
addressing tracks. May be negative.
(no)skip
(Never) accept imperfect data reconstruction.
-cdrom-device <path to device>
Specify the CD-ROM device (default: /dev/cdrom).
-channels <number> (also see -af channels)
Request the number of playback channels (default: 2). MPlayer
asks the decoder to decode the audio into as many channels as
specified. Then it is up to the decoder to fulfill the
requirement. This is usually only important when playing videos
with AC3 audio (like DVDs). In that case liba52 does the
decoding by default and correctly downmixes the audio into the
requested number of channels. To directly control the number of
output channels independently of how many channels are decoded,
use the channels filter.
NOTE: This option is honored by codecs (AC3 only), filters
(surround) and audio output drivers (OSS at least).
Available options are:
2 stereo
4 surround
6 full 5.1
-chapter <chapter ID>[-<end chapter ID>] (DVD only)
Specify which chapter to start playing at. Optionally specify
which chapter to end playing at (default: 1).
-cookies (network only)
Send cookies when making HTTP requests.
-cookies-file <filename> (network only)
Read HTTP cookies from <filename> (default: ~/.mozilla/ and
~/.netscape/) and skip reading from default locations. The file
is assumed to be in Netscape format.
-delay <sec>
audio delay in seconds (positive or negative float value)
NOTE: When used with MEncoder, this is not guaranteed to work
correctly with -ovc copy.
-demuxer <[+]name>
Force demuxer type. Use a ’+’ before the name to force it, this
will skip some checks! Give the demuxer name as printed by
-demuxer help. For backward compatibility it also accepts the
demuxer ID as defined in libmpdemux/demuxer.h. -demuxer audio
or -demuxer 17 forces MP3.
-dumpaudio (MPlayer only)
Dumps raw compressed audio stream to ./stream.dump (useful with
MPEG/AC3). If you give more than one of -dumpaudio, -dumpvideo,
-dumpstream on the command line only the last one will work.
-dumpfile <filename> (MPlayer only)
Specify which file MPlayer should dump to. Should be used
together with -dumpaudio / -dumpvideo / -dumpstream.
-dumpstream (MPlayer only)
Dumps the raw stream to ./stream.dump. Useful when ripping from
DVD or network. If you give more than one of -dumpaudio,
-dumpvideo, -dumpstream on the command line only the last one
will work.
-dumpvideo (MPlayer only)
Dump raw compressed video stream to ./stream.dump (not very
usable). If you give more than one of -dumpaudio, -dumpvideo,
-dumpstream on the command line only the last one will work.
-dvbin <options> (DVB only)
Pass the following parameters to the DVB input module, in order
to override the default ones:
card=<1-4>
Specifies using card number 1-4 (default: 1).
file=<filename>
Instructs MPlayer to read the channels list from
<filename>. Default is ~/.mplayer/
channels.conf.{sat,ter,cbl,atsc} (based on your card
type) or ~/.mplayer/channels.conf as a last resort.
-dvd-device <path to device> (DVD only)
Specify the DVD device (default: /dev/dvd). You can also
specify a directory that contains files previously copied
directly from a DVD (with e.g. vobcopy). Note that using
-dumpstream is usually a better way to copy DVD titles in the
first place (see the examples).
-dvdangle <angle ID> (DVD only)
Some DVD discs contain scenes that can be viewed from multiple
angles. Here you can tell MPlayer which angles to use (default:
1).
-edl <filename> (EDL only)
Enables edit decision list (EDL) actions during playback. Video
will be skipped over and audio will be muted and unmuted
according to the entries in the given file. See DOCS/HTML/en/
edl.html for details on how to use this.
-forceidx
Force index rebuilding. Useful for files with broken index (A/V
desync, etc). This will enable seeking in files where seeking
was not possible. You can fix the index permanently with
MEncoder (see the documentation).
NOTE: This option only works if the underlying media supports
seeking (i.e. not with stdin, pipe, etc).
-fps <float value>
Override video framerate. Useful if the original value is wrong
or missing.
-frames <number>
Play/convert only first <number> frames, then quit.
-hr-mp3-seek (MP3 only)
Hi-res MP3 seeking. Enabled when playing from an external MP3
file, as we need to seek to the very exact position to keep A/V
sync. Can be slow especially when seeking backwards since it
has to rewind to the beginning to find an exact frame position.
-idx (also see -forceidx)
Rebuilds index of files if no index was found, allowing seeking.
Useful with broken/incomplete downloads, or badly created files.
NOTE: This option only works if the underlying media supports
seeking (i.e. not with stdin, pipe, etc).
-ipv4-only-proxy (network only)
Skip the proxy for IPv6 addresses. It will still be used for
IPv4 connections.
-loadidx <index file>
The file from which to read the video index data saved by
-saveidx. This index will be used for seeking, overriding any
index data contained in the AVI itself. MPlayer will not
prevent you from loading an index file generated from a
different AVI, but this is sure to cause unfavorable results.
NOTE: This option is obsolete now that MPlayer has OpenDML
support.
-mc <seconds/frame>
maximum A-V sync correction per frame (in seconds)
-mf <option1:option2:...>
Used when decoding from multiple PNG or JPEG files.
Available options are:
w=<value>
output width (default: autodetect)
h=<value>
output height (default: autodetect)
fps=<value>
output fps (default: 25)
type=<value>
input file type (available: jpeg, png, tga, sgi)
-ni (AVI only)
Force usage of non-interleaved AVI parser (fixes playback of
some bad AVI files).
-nobps (AVI only)
Do not use average byte/second value for A-V sync. Helps with
some AVI files with broken header.
-noextbased
Disables extension-based demuxer selection. By default, when
the file type (demuxer) cannot be detected reliably (the file
has no header or it is not reliable enough), the filename
extension is used to select the demuxer. Always falls back on
content-based demuxer selection.
-passwd <password> (also see -user) (network only)
Specify password for HTTP authentication.
-prefer-ipv4 (network only)
Use IPv4 on network connections. Falls back on IPv6
automatically.
-prefer-ipv6 (IPv6 network only)
Use IPv6 on network connections. Falls back on IPv4
automatically.
-rawaudio <option1:option2:...>
This option lets you play raw audio files. You have to use
-demuxer rawaudio as well. It may also be used to play audio
CDs which are not 44kHz 16-bit stereo. For playing raw AC3
streams use -rawaudio format=0x2000 -demuxer rawaudio.
Available options are:
channels=<value>
number of channels
rate=<value>
rate in samples per second
samplesize=<value>
sample size in bytes
bitrate=<value>
bitrate for rawaudio files
format=<value>
fourcc in hex
-rawvideo <option1:option2:...>
This option lets you play raw video files. You have to use
-demuxer rawvideo as well.
Available options are:
fps=<value>
rate in frames per second (default: 25.0)
sqcif|qcif|cif|4cif|pal|ntsc
set standard image size
w=<value>
image width in pixels
h=<value>
image height in pixels
i420|yv12|yuy2|y8
set colorspace
format=<value>
colorspace (fourcc) in hex
size=<value>
frame size in Bytes
EXAMPLE:
mplayer foreman.qcif -demuxer rawvideo -rawvideo qcif
Play the famous "foreman" sample video.
mplayer sample-720x576.yuv -demuxer rawvideo -rawvideo
w=720:h=576
Play a raw YUV sample.
-rtsp-stream-over-tcp (LIVE555 only)
Used with ’rtsp://’ URLs to specify that the resulting incoming
RTP and RTCP packets be streamed over TCP (using the same TCP
connection as RTSP). This option may be useful if you have a
broken internet connection that does not pass incoming UDP
packets (see http://www.live555.com/mplayer/).
-saveidx <filename>
Force index rebuilding and dump the index to <filename>.
Currently this only works with AVI files.
NOTE: This option is obsolete now that MPlayer has OpenDML
support.
-sb <byte position> (also see -ss)
Seek to byte position. Useful for playback from CD-ROM images
or VOB files with junk at the beginning.
-speed <0.01-100>
Slow down or speed up playback by the factor given as parameter.
Not guaranteed to work correctly with -oac copy.
-srate <Hz>
Selects the output sample rate to be used (of course sound cards
have limits on this). If the sample frequency selected is
different from that of the current media, the resample or
lavcresample audio filter will be inserted into the audio filter
layer to compensate for the difference. The type of resampling
can be controlled by the -af-adv option. The default is fast
resampling that may cause distortion.
-ss <time> (also see -sb)
Seek to given time position.
EXAMPLE:
-ss 56
Seeks to 56 seconds.
-ss 01:10:00
Seeks to 1 hour 10 min.
-tskeepbroken
Tells MPlayer not to discard TS packets reported as broken in
the stream. Sometimes needed to play corrupted MPEG-TS files.
-tsprobe <byte position>
When playing an MPEG-TS stream, this option lets you specify how
many bytes in the stream you want MPlayer to search for the
desired audio and video IDs.
-tsprog <1-65534>
When playing an MPEG-TS stream, you can specify with this option
which program (if present) you want to play. Can be used with
-vid and -aid.
-tv <option1:option2:...> (TV only)
This option tunes various properties of the TV capture module.
For watching TV with MPlayer, use ’tv://’ or
’tv://<channel_number>’ or even ’tv://<channel_name> (see option
channels for channel_name below) as a movie URL.
Available options are:
noaudio
no sound
driver=<value>
available: dummy, v4l, v4l2, bsdbt848
device=<value>
Specify TV device (default: /dev/video0).
input=<value>
Specify input (default: 0 (TV), see console output for
available inputs).
freq=<value>
Specify the frequency to set the tuner to (e.g.
511.250). Not compatible with the channels parameter.
outfmt=<value>
Specify the output format of the tuner with a preset
value supported by the V4L driver (yv12, rgb32, rgb24,
rgb16, rgb15, uyvy, yuy2, i420) or an arbitrary format
given as hex value. Try outfmt=help for a list of all
available formats.
width=<value>
output window width
height=<value>
output window height
fps=<value>
framerate at which to capture video (frames per second)
buffersize=<value>
maximum size of the capture buffer in megabytes
(default: dynamical)
norm=<value>
For bsdbt848 and v4l, PAL, SECAM, NTSC are available.
For v4l2, see the console output for a list of all
available norms, also see the normid option below.
normid=<value> (v4l2 only)
Sets the TV norm to the given numeric ID. The TV norm
depends on the capture card. See the console output for
a list of available TV norms.
channel=<value>
Set tuner to <value> channel.
chanlist=<value>
available: europe-east, europe-west, us-bcast, us-cable,
etc
channels=<channel>-<name>,<channel>-<name>,...
Set names for channels. Use _ for spaces in names (or
play with quoting ;-). The channel names will then be
written using OSD, and the slave commands
tv_step_channel, tv_set_channel and tv_last_channel will
be usable for a remote control (see LIRC). Not
compatible with the frequency parameter.
NOTE: The channel number will then be the position in
the ’channels’ list, beginning with 1.
EXAMPLE: tv://1, tv://TV1, tv_set_channel 1,
tv_set_channel TV1
[brightness|contrast|hue|saturation]=<-100-100>
Set the image equalizer on the card.
audiorate=<value>
Set audio capture bitrate.
forceaudio
Capture audio even if there are no audio sources
reported by v4l.
alsa
Capture from ALSA.
amode=<0-3>
Choose an audio mode:
0: mono
1: stereo
2: language 1
3: language 2
forcechan=<1-2>
By default, the count of recorded audio channels is
determined automatically by querying the audio mode from
the TV card. This option allows forcing stereo/mono
recording regardless of the amode option and the values
returned by v4l. This can be used for troubleshooting
when the TV card is unable to report the current audio
mode.
adevice=<value>
Set an audio device. <value> should be /dev/xxx for OSS
and a hardware ID for ALSA. You must replace any ’:’ by
a ’.’ in the hardware ID for ALSA.
audioid=<value>
Choose an audio output of the capture card, if it has
more than one.
[volume|bass|treble|balance]=<0-65535> (v4l1)
[volume|bass|treble|balance]=<0-100> (v4l2)
These options set parameters of the mixer on the video
capture card. They will have no effect, if your card
does not have one. For v4l2 50 maps to the default
value of the control, as reported by the driver.
immediatemode=<bool>
A value of 0 means capture and buffer audio and video
together (default for MEncoder). A value of 1 (default
for MPlayer) means to do video capture only and let the
audio go through a loopback cable from the TV card to
the sound card.
mjpeg
Use hardware MJPEG compression (if the card supports
it). When using this option, you do not need to specify
the width and height of the output window, because
MPlayer will determine it automatically from the
decimation value (see below).
decimation=<1|2|4>
choose the size of the picture that will be compressed
by hardware MJPEG compression:
1: full size
704x576 PAL
704x480 NTSC
2: medium size
352x288 PAL
352x240 NTSC
4: small size
176x144 PAL
176x120 NTSC
quality=<0-100>
Choose the quality of the JPEG compression (< 60
recommended for full size).
-user <username> (also see -passwd) (network only)
Specify username for HTTP authentication.
-user-agent <string>
Use <string> as user agent for HTTP streaming.
-vid <ID>
Select video channel (MPG: 0-15, ASF: 0-255, MPEG-TS: 17-8190).
When playing an MPEG-TS stream, MPlayer/MEncoder will use the
first program (if present) with the chosen video stream.
-vivo <sub-options> (DEBUG CODE)
Force audio parameters for the VIVO demuxer (for debugging
purposes).
OSD/SUB OPTIONS
NOTE: Also see -vf expand.
-dumpjacosub (MPlayer only)
Convert the given subtitle (specified with the -sub option) to
the time-based JACOsub subtitle format. Creates a dumpsub.js
file in the current directory.
-dumpmicrodvdsub (MPlayer only)
Convert the given subtitle (specified with the -sub option) to
the MicroDVD subtitle format. Creates a dumpsub.sub file in the
current directory.
-dumpmpsub (MPlayer only)
Convert the given subtitle (specified with the -sub option) to
MPlayer’s subtitle format, MPsub. Creates a dump.mpsub file in
the current directory.
-dumpsami (MPlayer only)
Convert the given subtitle (specified with the -sub option) to
the time-based SAMI subtitle format. Creates a dumpsub.smi file
in the current directory.
-dumpsrtsub (MPlayer only)
Convert the given subtitle (specified with the -sub option) to
the time-based SubViewer (SRT) subtitle format. Creates a
dumpsub.srt file in the current directory.
NOTE: Some broken hardware players choke on SRT subtitle files
with Unix line endings. If you are unlucky enough to have such
a box, pass your subtitle files through unix2dos or a similar
program to replace Unix line endings with DOS/Windows line
endings.
-dumpsub (MPlayer only) (BETA CODE)
Dumps the subtitle substream from VOB streams. Also see the
-dump*sub and -vobsubout* options.
-ffactor <number> (OSD only)
Resample the font alphamap. Can be:
0 plain white fonts
0.75 very narrow black outline (default)
1 narrow black outline
10 bold black outline
-flip-hebrew (FriBiDi only)
Turns on flipping subtitles using FriBiDi.
-noflip-hebrew-commas
Change FriBiDi’s assumptions about the placements of commas in
subtitles. Use this if commas in subtitles are shown at the
start of a sentence instead of at the end.
-font <path to font.desc file> (OSD only)
Search for the OSD/SUB fonts in an alternative directory
(default for normal fonts: ~/.mplayer/font/font.desc, default
for FreeType fonts: ~/.mplayer/subfont.ttf).
NOTE: With FreeType, this option determines the path to the text
font file. With fontconfig, this option determines the
fontconfig font name.
EXAMPLE:
-font ~/.mplayer/arial-14/font.desc
-font ~/.mplayer/arialuni.ttf
-font ’Bitstream Vera Sans’
-fontconfig (fontconfig only)
Enables the usage of fontconfig managed fonts.
-forcedsubsonly
Display only forced subtitles for the DVD subtitle stream
selected by e.g. -slang.
-fribidi-charset <charset name> (FriBiDi only)
Specifies the character set that will be passed to FriBiDi when
decoding non-UTF-8 subtitles (default: ISO8859-8).
-ifo <VOBsub ifo file>
Indicate the file that will be used to load palette and frame
size for VOBsub subtitles.
-noautosub
Turns off automatic subtitle file loading.
-osd-duration <time>
Set the duration of the OSD messages in ms (default: 1000).
-osdlevel <0-3> (MPlayer only)
Specifies which mode the OSD should start in.
0 subtitles only
1 volume + seek (default)
2 volume + seek + timer + percentage
3 volume + seek + timer + percentage + total time
-overlapsub
Allows the next subtitle to be displayed while the current one
is still visible (default is to enable the support only for
specific formats).
-sid <ID> (also see -slang, -vobsubid)
Display the subtitle stream specified by <ID> (0-31). MPlayer
prints the available subtitle IDs when run in verbose (-v) mode.
If you cannot select one of the subtitles on a DVD, also try
-vobsubid.
-slang <language code[,language code,...]> (also see -sid)
Specify a priority list of subtitle languages to use. Different
container formats employ different language codes. DVDs use ISO
639-1 two letter language codes, Matroska uses ISO 639-2 three
letter language codes while OGM uses a free-form identifier.
MPlayer prints the available languages when run in verbose (-v)
mode.
EXAMPLE:
mplayer dvd://1 -slang hu,en
Chooses the Hungarian subtitle track on a DVD and falls
back on English if Hungarian is not available.
mplayer -slang jpn example.mkv
Plays a Matroska file with Japanese subtitles.
-spuaa <mode> (OSD only)
Antialiasing/scaling mode for DVD/VOBsub. A value of 16 may be
added to <mode> in order to force scaling even when original and
scaled frame size already match. This can be employed to e.g.
smooth subtitles with gaussian blur. Available modes are:
0 none (fastest, very ugly)
1 approximate (broken?)
2 full (slow)
3 bilinear (default, fast and not too bad)
4 uses swscaler gaussian blur (looks very good)
-spualign <-1-2> (OSD only)
Specify how SPU (DVD/VOBsub) subtitles should be aligned.
-1 original position
0 Align at top (original behavior, default).
1 Align at center.
2 Align at bottom.
-spugauss <0.0-3.0> (OSD only)
Variance parameter of gaussian used by -spuaa 4. Higher means
more blur (default: 1.0).
-sub <subtitlefile1,subtitlefile2,...>
Use/display these subtitle files. Only one file can be
displayed at the same time.
-sub-bg-alpha <0-255>
Specify the alpha channel value for subtitles and OSD
backgrounds. Big values mean more transparency. 0 means
completely transparent.
-sub-bg-color <0-255>
Specify the color value for subtitles and OSD backgrounds.
Currently subtitles are grayscale so this value is equivalent to
the intensity of the color. 255 means white and 0 black.
-sub-demuxer <[+]name> (-subfile only) (BETA CODE)
Force subtitle demuxer type for -subfile. Use a ’+’ before the
name to force it, this will skip some checks! Give the demuxer
name as printed by -sub-demuxer help. For backward
compatibility it also accepts the demuxer ID as defined in
libmpdemux/demuxer.h.
-sub-fuzziness <mode>
Adjust matching fuzziness when searching for subtitles:
0 exact match
1 Load all subs containing movie name.
2 Load all subs in the current directory.
-sub-no-text-pp
Disables any kind of text post processing done after loading the
subtitles. Used for debug purposes.
-subalign <0-2> (OSD only)
Specify which edge of the subtitles should be aligned at the
height given by -subpos.
0 Align subtitle top edge (original behavior).
1 Align subtitle center.
2 Align subtitle bottom edge (default).
-subcc
Display DVD Closed Caption (CC) subtitles. These are not the
VOB subtitles, these are special ASCII subtitles for the hearing
impaired encoded in the VOB userdata stream on most region 1
DVDs. CC subtitles have not been spotted on DVDs from other
regions so far.
-subcp <codepage> (iconv only)
If your system supports iconv(3), you can use this option to
specify the subtitle codepage.
EXAMPLE:
-subcp latin2
-subcp cp1250
-subcp enca:<language>:<fallback codepage> (ENCA only)
You can specify your language using a two letter language code
to make ENCA detect the codepage automatically. If unsure,
enter anything and watch mplayer -v output for available
languages. Fallback codepage specifies the codepage to use,
when autodetection fails.
EXAMPLE:
-subcp enca:cs:latin2
Guess the encoding, assuming the subtitles are Czech,
fall back on latin 2, if the detection fails.
-subcp enca:pl:cp1250
Guess the encoding for Polish, fall back on cp1250.
-subdelay <sec>
Delays subtitles by <sec> seconds. Can be negative.
-subfile <filename> (BETA CODE)
Currently useless. Same as -audiofile, but for subtitle streams
(OggDS?).
-subfont-autoscale <0-3> (FreeType only)
Sets the autoscale mode.
NOTE: 0 means that text scale and OSD scale are font heights in
points.
The mode can be:
0 no autoscale
1 proportional to movie height
2 proportional to movie width
3 proportional to movie diagonal (default)
-subfont-blur <0-8> (FreeType only)
Sets the font blur radius (default: 2).
-subfont-encoding <value> (FreeType only)
Sets the font encoding. When set to ’unicode’, all the glyphs
from the font file will be rendered and unicode will be used
(default: unicode).
-subfont-osd-scale <0-100> (FreeType only)
Sets the autoscale coefficient of the OSD elements (default: 6).
-subfont-outline <0-8> (FreeType only)
Sets the font outline thickness (default: 2).
-subfont-text-scale <0-100> (FreeType only)
Sets the subtitle text autoscale coefficient as percentage of
the screen size (default: 5).
-subfps <rate>
Specify the framerate of the subtitle file (default: movie fps).
NOTE: Only for frame-based subtitle files, i.e. MicroDVD format.
-subpos <0-100> (useful with -vf expand) (OSD only)
Specify the position of subtitles on the screen. The value is
the vertical position of the subtitle in % of the screen height.
-subwidth <10-100> (OSD only)
Specify the maximum width of subtitles on the screen. Useful
for TV-out. The value is the width of the subtitle in % of the
screen width.
-noterm-osd
Disable the display of OSD messages on the console when no video
output is available.
-term-osd-esc <escape sequence>
Specify the escape sequence to use before writing an OSD message
on the console. The escape sequence should move the pointer to
the beginning of the line used for the OSD and clear it
(default: ^[[A
^[[K).
-unicode
Tells MPlayer to handle the subtitle file as unicode.
-utf8
Tells MPlayer to handle the subtitle file as UTF-8.
-vobsub <VOBsub file without extension>
Specify a VOBsub file to use for subtitles. Has to be the full
pathname without extension, i.e. without the ’.idx’, ’.ifo’ or
’.sub’.
-vobsubid <0-31>
Specify the VOBsub subtitle ID.
AUDIO OUTPUT OPTIONS (MPLAYER ONLY)
-abs <value> (-ao oss only) (OBSOLETE)
Override audio driver/card buffer size detection.
-format <format> (also see the format audio filter)
Select the sample format used for output from the audio filter
layer to the sound card. The values that <format> can adopt are
listed below in the description of the format audio filter.
-mixer <device>
Use a mixer device different from the default /dev/mixer. For
ALSA this is the mixer name.
-mixer-channel <mixer line>[,mixer index] (-ao oss and -ao alsa only)
This option will tell MPlayer to use a different channel for
controlling volume than the default PCM. Options for OSS
include vol, pcm, line. For a complete list of options look for
SOUND_DEVICE_NAMES in /usr/include/linux/soundcard.h. For ALSA
you can use the names e.g. alsamixer displays, like Master,
Line, PCM.
NOTE: ALSA mixer channel names followed by a number must be
specified in the <name,number> format, i.e. a channel labeled
’PCM 1’ in alsamixer must be converted to PCM,1.
-softvol
Force the use of the software mixer, instead of using the sound
card mixer.
-softvol-max <10.0-10000.0>
Set the maximum amplification level in percent (default: 110).
A value of 200 will allow you to adjust the volume up to a
maximum of double the current level. With values below 100 the
initial volume (which is 100%) will be above the maximum, which
e.g. the OSD cannot display correctly.
-volstep <0-100>
Set the step size of mixer volume changes in percent of the
whole range (default: 3).
AUDIO OUTPUT DRIVERS (MPLAYER ONLY)
Audio output drivers are interfaces to different audio output
facilities. The syntax is:
-ao <driver1[:suboption1[=value]:...],driver2,...[,]>
Specify a priority list of audio output drivers to be used.
If the list has a trailing ’,’ MPlayer will fall back on drivers not
contained in the list. Suboptions are optional and can mostly be
omitted.
NOTE: See -ao help for a list of compiled-in audio output drivers.
EXAMPLE:
-ao alsa,oss,
Try the ALSA driver, then the OSS driver, then others.
-ao alsa:mmap:noblock:device=hw=0.3
Sets noblock-mode, mmap-mode and the device-name as
first card, fourth device.
Available audio output drivers are:
alsa
ALSA 0.9/1.x audio output driver
mmap
Sets experimental mmap-mode (does not work for more than
2 channels).
noblock
Sets noblock-mode.
device=<device>
Sets the device name. Replace any ’,’ with ’.’ and any
’:’ with ’=’ in the ALSA device name. Make sure you do
not set this when you want hwac3 output via S/PDIF,
unless you really know how to set it correctly.
alsa5
ALSA 0.5 audio output driver
oss
OSS audio output driver
<dsp-device>
Sets the audio output device (default: /dev/dsp).
<mixer-device>
Sets the audio mixer device (default: /dev/mixer).
<mixer-channel>
Sets the audio mixer channel (default: pcm).
sdl
highly platform independent SDL (Simple Directmedia Layer)
library audio output driver
<driver>
Explicitly choose the SDL audio driver to use (default:
let SDL choose).
arts
audio output through the aRts daemon
esd
audio output through the ESD daemon
<server>
Explicitly choose the ESD server to use (default:
localhost).
jack
audio output through JACK (Jack Audio Connection Kit)
port=<name>
Connects to the ports with the given name (default:
physical ports).
name=<client
Client name that is passed to JACK (default: MPlayer
[<PID>]). Useful if you want to have certain
connections established automatically.
(no)estimate
Estimate the audio delay, supposed to make the video
playback smoother (default: enabled).
nas
audio output through NAS
macosx (Mac OS X only)
native Mac OS X audio output driver
sgi (SGI only)
native SGI audio output driver
<output device name>
Explicitly choose the output device/interface to use
(default: system-wide default). For example,
’Analog Out’ or ’Digital Out’.
sun (Sun only)
native Sun audio output driver
<device>
Explicitly choose the audio device to use (default:
/dev/audio).
win32 (Windows only)
native Windows waveout audio output driver
dsound (Windows only)
DirectX DirectSound audio output driver
device=<devicenum>
Sets the device number to use. Playing a file with -v
will show a list of available devices.
dxr2 (also see -dxr2) (DXR2 only)
Creative DXR2 specific output driver
mpegpes (DVB only)
DVB specific output driver
null
Produces no audio output but maintains video playback speed.
Use -nosound for benchmarking.
pcm
raw PCM/wave file writer audio output
(no)waveheader
Include or do not include the wave header (default:
included). When not included, raw PCM will be
generated.
file=<filename>
Write the sound to <filename> instead of the default
audiodump.wav. If nowaveheader is specified, the
default is audiodump.pcm.
plugin
plugin audio output driver
VIDEO OUTPUT OPTIONS (MPLAYER ONLY)
-adapter <value>
Set the graphics card that will receive the image. Needs the
-vm option to work. You can get a list of available cards when
you run this option with -v. Currently only works with the
directx video output driver.
-bpp <depth>
Override the autodetected color depth. Only supported by the
fbdev, dga, svga, vesa video output drivers.
-border
Play movie with window border and decorations. Since this is on
by default, use -noborder to disable the standard window
decorations. Supported by directx video output driver.
-brightness <-100-100>
Adjust the brightness of the video signal (default: 0). Not
supported by all video output drivers.
-contrast <-100-100>
Adjust the contrast of the video signal (default: 0). Not
supported by all video output drivers.
-display <name> (X11 only)
Specify the hostname and display number of the X server you want
to display on.
EXAMPLE:
-display xtest.localdomain:0
-dr
Turns on direct rendering (not supported by all codecs and video
outputs)
WARNING: May cause OSD/SUB corruption!
-dxr2 <option1:option2:...>
This option is used to control the dxr2 video output driver.
ar-mode=<value>
aspect ratio mode (0 = normal, 1 = pan-and-scan, 2 =
letterbox (default))
iec958-encoded
Set iec958 output mode to encoded.
iec958-decoded
Set iec958 output mode to decoded (default).
macrovision=<value>
macrovision mode (0 = off (default), 1 = agc, 2 = agc 2
colorstripe, 3 = agc 4 colorstripe)
mute
mute sound output
unmute
unmute sound output
ucode=<value>
path to the microcode
TV output
75ire
enable 7.5 IRE output mode
no75ire
disable 7.5 IRE output mode (default)
bw
b/w TV output
color
color TV output (default)
interlaced
interlaced TV output (default)
nointerlaced
disable interlaced TV output
norm=<value>
TV norm (ntsc (default), pal, pal60, palm, paln, palnc)
square-pixel
set pixel mode to square
ccir601-pixel
set pixel mode to ccir601
overlay
cr-left=<0-500>
Set the left cropping value (default: 50).
cr-right=<0-500>
Set the right cropping value (default: 300).
cr-top=<0-500>
Set the top cropping value (default: 0).
cr-bottom=<0-500>
Set the bottom cropping value (default: 0).
ck-[r|g|b]=<0-255>
Set the r(ed), g(reen) or b(lue) gain of the overlay
color-key.
ck-[r|g|b]min=<0-255>
minimum value for the respective color key
ck-[r|g|b]max=<0-255>
maximum value for the respective color key
ignore-cache
Ignore cached overlay settings.
update-cache
Update cached overlay settings.
ol-osd
Enable overlay onscreen display.
nool-osd
Disable overlay onscreen display (default).
ol[h|w|x|y]-cor=<-20-20>
Adjust the overlay size (h,w) and position (x,y) in case
it does not match the window perfectly (default: 0).
overlay
Activate overlay (default).
nooverlay
Activate TVout.
overlay-ratio=<1-2500>
Tune the overlay (default: 1000).
-fbmode <modename> (-vo fbdev only)
Change video mode to the one that is labeled as <modename> in
/etc/fb.modes.
NOTE: VESA framebuffer does not support mode changing.
-fbmodeconfig <filename> (-vo fbdev only)
Override framebuffer mode configuration file (default: /etc/
fb.modes).
-fs (also see -zoom)
Fullscreen playback (centers movie, and paints black bands
around it). Not supported by all video output drivers.
-fsmode-dontuse <0-31> (OBSOLETE, use the -fs option)
Try this option if you still experience fullscreen problems.
-fstype <type1,type2,...> (X11 only)
Specify a priority list of fullscreen modes to be used. You can
negate the modes by prefixing them with ’-’. If you experience
problems like the fullscreen window being covered by other
windows try using a different order.
NOTE: See -fstype help for a full list of available modes.
The available types are:
above
Use the _NETWM_STATE_ABOVE hint if available.
below
Use the _NETWM_STATE_BELOW hint if available.
fullscreen
Use the _NETWM_STATE_FULLSCREEN hint if available.
layer
Use the _WIN_LAYER hint with the default layer.
layer=<0...15>
Use the _WIN_LAYER hint with the given layer number.
netwm
Force NETWM style.
none
Do not set fullscreen window layer.
stays_on_top
Use _NETWM_STATE_STAYS_ON_TOP hint if available.
EXAMPLE:
layer,stays_on_top,above,fullscreen
Default order, will be used as a fallback if incorrect
or unsupported modes are specified.
-fullscreen
Fixes fullscreen switching on OpenBox 1.x.
-geometry x[%][:y[%]] or [WxH][+x+y]
Adjust where the output is on the screen initially. The x and y
specifications are in pixels measured from the top-left of the
screen to the top-left of the image being displayed, however if
a percentage sign is given after the argument it turns the value
into a percentage of the screen size in that direction. It also
supports the standard X11 -geometry option format. If an
external window is specified using the -wid option, then the x
and y coordinates are relative to the top-left corner of the
window rather than the screen.
NOTE: This option is only supported by the x11, xmga, xv, xvmc,
xvidix, gl, gl2, directx and tdfxfb video output drivers.
EXAMPLE:
50:40
Places the window at x=50, y=40.
50%:50%
Places the window in the middle of the screen.
100%
Places the window at the middle of the right edge of the
screen.
100%:100%
Places the window at the bottom right corner of the
screen.
-guiwid <window ID> (also see -wid) (GUI only)
This tells the GUI to also use an X11 window and stick itself to
the bottom of the video, which is useful to embed a mini-GUI in
a browser (with the MPlayer plugin for instance).
-hue <-100-100>
Adjust the hue of the video signal (default: 0). You can get a
colored negative of the image with this option. Not supported
by all video output drivers.
-monitor-dotclock <range[,range,...]> (-vo fbdev and vesa only)
Specify the dotclock or pixelclock range of the monitor.
-monitor-hfreq <range[,range,...]> (-vo fbdev and vesa only)
Specify the horizontal frequency range of the monitor.
-monitor-vfreq <range[,range,...]> (-vo fbdev and vesa only)
Specify the vertical frequency range of the monitor.
-monitoraspect <ratio> (also see -aspect)
Set the aspect ratio of your monitor or TV screen.
EXAMPLE:
-monitoraspect 4:3 or 1.3333
-monitoraspect 16:9 or 1.7777
-nodouble
Disables double buffering, mostly for debugging purposes.
Double buffering fixes flicker by storing two frames in memory,
and displaying one while decoding another. It can affect OSD
negatively, but often removes OSD flickering.
-nograbpointer
Do not grab the mouse pointer after a video mode change (-vm).
Useful for multihead setups.
-nokeepaspect
Do not keep window aspect ratio when resizing windows. Only
works with the x11, xv, xmga, xvidix, directx video output
drivers. Furthermore under X11 your window manager has to honor
window aspect hints.
-ontop
Makes the player window stay on top of other windows. Supported
by video output drivers which use X11, except SDL, as well as
directx, macosx, quartz, ggi and gl2.
-panscan <0.0-1.0>
Enables pan-and-scan functionality (cropping the sides of e.g. a
16:9 movie to make it fit a 4:3 display without black bands).
The range controls how much of the image is cropped. Only works
with the xv, xmga, mga, gl, gl2, quartz, macosx and xvidix video
output drivers.
-panscanrange <-19.0-99.0> (experimental)
Change the range of the pan-and-scan functionality (default: 1).
Positive values mean multiples of the default range. Negative
numbers mean you can zoom in up to a factor of -panscanrange+1.
E.g. -panscanrange -3 allows a zoom factor of up to 4. This
feature is experimental. Do not report bugs unless you are
using -vo gl.
-refreshrate <Hz>
Set the monitor refreshrate in Hz. Currently only supported by
-vo directx combined with the -vm option.
-rootwin
Play movie in the root window (desktop background). Desktop
background images may cover the movie window, though. Only
works with the x11, xv, xmga, xvidix, quartz, macosx and directx
video output drivers.
-saturation <-100-100>
Adjust the saturation of the video signal (default: 0). You can
get grayscale output with this option. Not supported by all
video output drivers.
-screenh <pixels>
Specify the vertical screen resolution for video output drivers
which do not know the screen resolution like fbdev, x11 and
TVout.
-screenw <pixels>
Specify the horizontal screen resolution for video output
drivers which do not know the screen resolution like fbdev, x11
and TVout.
-stop-xscreensaver (X11 only)
Turns off xscreensaver at startup and turns it on again on exit.
-vm
Try to change to a different video mode. Supported by the dga,
x11, xv, sdl and directx video output drivers. If used with the
directx video output driver the -screenw, -screenh, -bpp and
-refreshrate options can be used to set the new display mode.
-vsync
Enables VBI for the vesa, dfbmga and svga video output drivers.
-wid <window ID> (also see -guiwid) (X11, OpenGL and DirectX only)
This tells MPlayer to attach to an existing window. Useful to
embed MPlayer in a browser (e.g. the plugger extension).
-xineramascreen <0-...>
In Xinerama configurations (i.e. a single desktop that spans
across multiple displays) this option tells MPlayer which screen
to display the movie on.
-zrbw (-vo zr only)
Display in black and white. For optimal performance, this can
be combined with ’-lavdopts gray’.
-zrcrop <[width]x[height]+[x offset]+[y offset]> (-vo zr only)
Select a part of the input image to display, multiple
occurrences of this option switch on cinerama mode. In cinerama
mode the movie is distributed over more than one TV (or beamer)
to create a larger image. Options appearing after the n-th
-zrcrop apply to the n-th MJPEG card, each card should at least
have a -zrdev in addition to the -zrcrop. For examples, see the
output of -zrhelp and the Zr section of the documentation.
-zrdev <device> (-vo zr only)
Specify the device special file that belongs to your MJPEG card,
by default the zr video output driver takes the first v4l device
it can find.
-zrfd (-vo zr only)
Force decimation: Decimation, as specified by -zrhdec and
-zrvdec, only happens if the hardware scaler can stretch the
image to its original size. Use this option to force
decimation.
-zrhdec <1|2|4> (-vo zr only)
Horizontal decimation: Ask the driver to send only every 2nd or
4th line/pixel of the input image to the MJPEG card and use the
scaler of the MJPEG card to stretch the image to its original
size.
-zrhelp (-vo zr only)
Display a list of all -zr* options, their default values and a
cinerama mode example.
-zrnorm <norm> (-vo zr only)
Specify the TV norm as PAL or NTSC (default: no change).
-zrquality <1-20> (-vo zr only)
A number from 1 (best) to 20 (worst) representing the JPEG
encoding quality.
-zrvdec <1|2|4> (-vo zr only)
Vertical decimation: Ask the driver to send only every 2nd or
4th line/pixel of the input image to the MJPEG card and use the
scaler of the MJPEG card to stretch the image to its original
size.
-zrxdoff <x display offset> (-vo zr only)
If the movie is smaller than the TV screen, this option
specifies the x offset from the upper-left corner of the TV
screen (default: centered).
-zrydoff <y display offset> (-vo zr only)
If the movie is smaller than the TV screen, this option
specifies the y offset from the upper-left corner of the TV
screen (default: centered).
VIDEO OUTPUT DRIVERS (MPLAYER ONLY)
Video output drivers are interfaces to different video output
facilities. The syntax is:
-vo <driver1[:suboption1[=value]:...],driver2,...[,]>
Specify a priority list of video output drivers to be used.
If the list has a trailing ’,’ MPlayer will fall back on drivers not
contained in the list. Suboptions are optional and can mostly be
omitted.
NOTE: See -vo help for a list of compiled-in video output drivers.
EXAMPLE:
-vo xmga,xv,
Try the Matrox X11 driver, then the Xv driver, then
others.
-vo directx:noaccel
Uses the DirectX driver with acceleration features
turned off.
Available video output drivers are:
xv (X11 only)
Uses the XVideo extension of XFree86 4.x to enable hardware
accelerated playback. If you cannot use a hardware specific
driver, this is probably the best option. For information about
what colorkey is used and how it is drawn run MPlayer with -v
option and look out for the lines tagged with [xv common] at the
beginning.
port=<number>
Select a specific XVideo port.
ck=<cur|use|set>
Select the source from which the colorkey is taken
(default: cur).
cur The default takes the colorkey currently set in
Xv.
use Use but do not set the colorkey from MPlayer
(use -colorkey option to change it).
set Same as use but also sets the supplied colorkey.
ck-method=<man|bg|auto>
Sets the colorkey drawing method (default: man).
man Draw the colorkey manually (reduces flicker in
some cases).
bg Set the colorkey as window background.
auto Let Xv draw the colorkey.
x11 (X11 only)
Shared memory video output driver without hardware acceleration
that works whenever X11 is present.
xover (X11 only)
Adds X11 support to all overlay based video output drivers.
Currently only supported by tdfx_vid.
<vo_driver>
Select the driver to use as source to overlay on top of
X11.
xvmc (X11 with -vc ffmpeg12mc only)
Video output driver that uses the XvMC (X Video Motion
Compensation) extension of XFree86 4.x to speed up MPEG-1/2 and
VCR2 decoding.
port=<number>
Select a specific XVideo port.
(no)benchmark
Disables image display. Necessary for proper
benchmarking of drivers that change image buffers on
monitor retrace only (nVidia). Default is not to
disable image display (nobenchmark).
(no)queue
Queue frames for display to allow more parallel work of
the video hardware. May add a small (not noticeable)
constant A/V desync (default: noqueue).
(no)sleep
Use sleep function while waiting for rendering to finish
(not recommended on Linux) (default: nosleep).
ck=cur|use|set
Same as -vo xv:ck (see -vo xv).
ck-method=man|bg|auto
Same as -vo xv:ck-method (see -vo xv).
dga (X11 only)
Play video through the XFree86 Direct Graphics Access extension.
Considered obsolete.
sdl (SDL only)
Highly platform independent SDL (Simple Directmedia Layer)
library video output driver. Since SDL uses its own X11 layer,
MPlayer X11 options do not have any effect on SDL.
driver=<driver>
Explicitly choose the SDL driver to use.
(no)forcexv
Use XVideo through the sdl video output driver (default:
forcexv).
(no)hwaccel
Use hardware accelerated scaler (default: hwaccel).
vidix
VIDIX (VIDeo Interface for *niX) is an interface to the video
acceleration features of different graphics cards. Very fast
video output driver on cards that support it.
<subdevice>
Explicitly choose the VIDIX subdevice driver to use.
Available subdevice drivers are cyberblade_vid.so,
mach64_vid.so, mga_crtc2_vid.so, mga_vid.so,
nvidia_vid.so, pm3_vid.so, radeon_vid.so,
rage128_vid.so, sis_vid.so and unichrome_vid.so.
xvidix (X11 only)
X11 frontend for VIDIX
<subdevice>
same as vidix
cvidix
Generic and platform independent VIDIX frontend, can even run in
a text console with nVidia cards.
<subdevice>
same as vidix
winvidix (Windows only)
Windows frontend for VIDIX
<subdevice>
same as vidix
directx (Windows only)
Video output driver that uses the DirectX interface.
noaccel
Turns off hardware acceleration. Try this option if you
have display problems.
quartz (Mac OS X only)
Mac OS X Quartz video output driver. Under some circumstances,
it might be more efficient to force a packed YUV output format,
with e.g. -vf format=yuy2.
device_id=<number>
Choose the display device to use in fullscreen.
fs_res=<width>:<height>
Specify the fullscreen resolution (useful on slow
systems).
macosx (Mac OS X 10.4 or 10.3.9 with QuickTime 7)
Mac OS X CoreVideo video output driver
device_id=<number>
Choose the display device to use in fullscreen.
fbdev (Linux only)
Uses the kernel framebuffer to play video.
<device>
Explicitly choose the fbdev device name to use (e.g.
/dev/fb0) or the name of the VIDIX subdevice if the
device name starts with ’vidix’ (e.g. ’vidixsis_vid’ for
the sis driver).
fbdev2 (Linux only)
Uses the kernel framebuffer to play video, alternative
implementation.
<device>
Explicitly choose the fbdev device name to use (default:
/dev/fb0).
vesa
Very general video output driver that should work on any VESA
VBE 2.0 compatible card.
dga
Turns on DGA mode.
nodga
Turns off DGA mode.
neotv_pal
Activate the NeoMagic TV out and set it to PAL norm.
neotv_ntsc
Activate the NeoMagic TV out and set it to NTSC norm.
vidix
Use the VIDIX driver.
lvo:
Activate the Linux Video Overlay on top of VESA mode.
svga
Play video using the SVGA library.
<video mode>
Specify video mode to use. The mode can be given in a
<width>x<height>x<colors> format, e.g. 640x480x16M or be
a graphics mode number, e.g. 84.
bbosd
Draw OSD into black bands below the movie (slower).
native
Use only native drawing functions. This avoids direct
rendering, OSD and hardware acceleration.
retrace
Force frame switch on vertical retrace. Usable only
with -double. It has the same effect as the -vsync
option.
sq
Try to select a video mode with square pixels.
vidix
Use svga with VIDIX.
gl
OpenGL video output driver, simple version. Video size must be
smaller than the maximum texture size of your OpenGL
implementation. Intended to work even with the most basic
OpenGL implementations, but also makes use of newer extensions,
which allow support for more colorspaces and direct rendering.
Please use -dr if it works with your OpenGL implementation,
since for higher resolutions this provides a big speedup. The
code performs very few checks, so if a feature does not work,
this might be because it is not supported by your card/OpenGL
implementation even if you do not get any error message. Use
glxinfo or a similar tool to display the supported OpenGL
extensions.
(no)manyfmts
Enables support for more (RGB and BGR) color formats
(default: enabled). Needs OpenGL version >= 1.2.
slice-height=<0-...>
Number of lines copied to texture in one piece (default:
4). 0 for whole image.
NOTE: If YUV colorspace is used (see yuv suboption),
special rules apply:
If the decoder uses slice rendering (see -noslices),
this setting has no effect, the size of the slices as
provided by the decoder is used.
If the decoder does not use slice rendering, the
default is 16.
(no)osd
Enable or disable support for OSD rendering via OpenGL
(default: enabled). This option is for testing; to
disable the OSD use -osdlevel 0 instead.
(no)scaled-osd
Changes the way the OSD behaves when the size of the
window changes (default: disabled). When enabled
behaves more like the other video output drivers, which
is better for fixed-size fonts. Disabled looks much
better with FreeType fonts and uses the borders in
fullscreen mode.
(no)aspect
Enable or disable aspect scaling and pan-and-scan
support (default: enabled). Disabling might increase
speed.
rectangle=<0,1,2>
Select usage of rectangular textures which saves video
RAM, but often is slower (default: 0).
0: Use power-of-two textures (default).
1: Use the GL_ARB_texture_rectangle extension.
2: Use the GL_ARB_texture_non_power_of_two extension.
In some cases only supported in software and thus
very slow.
(no)glfinish
Call glFinish() before swapping buffers. Slower but in
some cases more correct output (default: disabled).
swapinterval=<n>
Minimum interval between two buffer swaps, counted in
displayed frames (default: 1). 1 is equivalent to
enabling VSYNC, 0 to disabling VSYNC. Values below 0
will leave it at the system default. This limits the
framerate to (horizontal refresh rate / n). Requires
GLX_SGI_swap_control support to work. With some
(most/all?) implementations this only works in
fullscreen mode.
yuv=<n>
Select the type of YUV to RGB conversion.
0: Use software conversion (default). Compatible
with all OpenGL versions. Provides brightness,
contrast and saturation control.
1: Use register combiners. This uses an nVidia-
specific extension (GL_NV_register_combiners). At
least three texture units are needed. Provides
saturation and hue control.
2: Use a fragment program. Needs the
GL_ARB_fragment_program extension and at least three
texture units. Provides brightness, contrast,
saturation and hue control.
3: Use a fragment program using the POW instruction.
Needs the GL_ARB_fragment_program extension and at
least three texture units. Provides brightness,
contrast, saturation, hue and gamma control. Gamma
can also be set independently for red, green and
blue. Method 4 is usually faster.
4: Use a fragment program with additional lookup.
Needs the GL_ARB_fragment_program extension and at
least four texture units. Provides brightness,
contrast, saturation, hue and gamma control. Gamma
can also be set independently for red, green and
blue.
5: Use ATI-specific method (for older cards). This
uses an ATI-specific extension
(GL_ATI_fragment_shader - not
GL_ARB_fragment_shader!). At least three texture
units are needed. Provides saturation and hue
control.
customprog=<filename>
Load a custom fragment program from <filename>. See
TOOLS/edgedect.fp for an example.
customtex=<filename>
Load a custom "gamma ramp" texture from <filename>.
This can be used in combination with yuv=4 or with the
customprog option.
gl2
OpenGL video output driver, second generation. Supports OSD and
videos larger than the maximum texture size.
(no)glfinish
same as gl (default: enabled)
yuv=<n>
Select the type of YUV to RGB conversion. If set to
anything except 0 OSD will be disabled and brightness,
contrast and gamma setting is only available via the
global X server settings. Apart from this the values
have the same meaning as for -vo gl.
null
Produces no video output. Useful for benchmarking.
aa
ASCII art video output driver that works on a text console. You
can get a list and an explanation of available suboptions
executing mplayer -vo aa:help
caca
Color ASCII art video output driver that works on a text
console.
bl
Video playback using the Blinkenlights UDP protocol. This
driver is highly hardware specific.
<subdevice>
Explicitly choose the Blinkenlights subdevice driver to
use. It is something like arcade:host=localhost:2323 or
hdl:file=name1,file=name2. You must specify a
subdevice.
ggi
GGI graphics system video output driver
<driver>
Explicitly choose the GGI driver to use. Replace any
’,’ that would appear in the driver string by a ’.’.
directfb
Play video using the DirectFB library.
(no)input
Use the DirectFB instead of the MPlayer keyboard code
(default: enabled).
buffermode=single|double|triple
Double and triple buffering give best results if you
want to avoid tearing issues. Triple buffering is more
efficient than double buffering as it does not block
MPlayer while waiting for the vertical retrace. Single
buffering should be avoided (default: single).
fieldparity=top|bottom
Control the output order for interlaced frames (default:
disabled). Valid values are top = top fields first,
bottom = bottom fields first. This option does not have
any effect on progressive film material like most MPEG
movies are. You need to enable this option if you have
tearing issues/unsmooth motions watching interlaced film
material.
layer=N
Will force layer with ID N for playback (default: -1 -
auto).
dfbopts=<list>
Specify a parameter list for DirectFB.
dfbmga
Matrox G400/G450/G550 specific video output driver that uses the
DirectFB library to make use of special hardware features.
Enables CRTC2 (second head), displaying video independently of
the first head.
(no)input
same as directfb (default: disabled)
buffermode=single|double|triple
same as directfb (default: triple)
fieldparity=top|bottom
same as directfb
(no)bes
Enable the use of the Matrox BES (backend scaler)
(default: disabled). Gives very good results concerning
speed and output quality as interpolated picture
processing is done in hardware. Works only on the
primary head.
(no)spic
Make use of the Matrox sub picture layer to display the
OSD (default: enabled).
(no)crtc2
Turn on TV-out on the second head (default: enabled).
The output quality is amazing as it is a full interlaced
picture with proper sync to every odd/even field.
tvnorm=pal|ntsc|auto
Will set the TV norm of the Matrox card without the need
for modifying /etc/directfbrc (default: disabled).
Valid norms are pal = PAL, ntsc = NTSC. Special norm is
auto (auto-adjust using PAL/NTSC) because it decides
which norm to use by looking at the framerate of the
movie.
mga (Linux only)
Matrox specific video output driver that makes use of the YUV
back end scaler on Gxxx cards through a kernel module. If you
have a Matrox card, this is the fastest option.
<device>
Explicitly choose the Matrox device name to use
(default: /dev/mga_vid).
xmga (Linux, X11 only)
The mga video output driver, running in an X11 window.
<device>
Explicitly choose the Matrox device name to use
(default: /dev/mga_vid).
syncfb
Video output driver for the SyncFB kernel module, which provides
special hardware features of Matrox Gxxx cards like hardware
deinterlacing, scaling and synchronizing your video output to
the vertical retrace of your monitor.
3dfx (Linux only)
3dfx specific video output driver. This driver directly uses
the 3dfx hardware on top of X11. Only 16 bpp are supported.
FIXME: It’ ok the difference between 3dfx, tdfxfb and tdfx_vid?
tdfxfb (Linux only)
This driver employs the tdfx framebuffer driver to play movies
with YUV acceleration on 3dfx cards. FIXME: It’ ok the
difference between 3dfx, tdfxfb and tdfx_vid?
<device>
Explicitly choose the fbdev device name to use (default:
/dev/fb0).
tdfx_vid (Linux only)
3dfx specific video output driver. This driver directly uses
the tdfx_vid kernel module. FIXME: It’ ok the difference
between 3dfx, tdfxfb and tdfx_vid?
<device>
Explicitly choose the device name to use (default: /dev/
tdfx_vid).
dxr2 (also see -dxr2) (DXR2 only)
Creative DXR2 specific video output driver.
<vo_driver>
Output video subdriver to use as overlay (x11, xv).
dxr3 (DXR3 only)
Sigma Designs em8300 MPEG decoder chip (Creative DXR3, Sigma
Designs Hollywood Plus) specific video output driver. Also see
the lavc video filter.
overlay
Activates the overlay instead of TVOut.
prebuf
Turns on prebuffering.
sync
Will turn on the new sync-engine.
norm=<norm>
Specifies the TV norm.
0: Does not change current norm (default).
1: Auto-adjust using PAL/NTSC.
2: Auto-adjust using PAL/PAL-60.
3: PAL
4: PAL-60
5: NTSC
<0-3>
Specifies the device number to use if you have more than
one em8300 card.
mpegpes (DVB only)
Video output driver for DVB cards that writes the output to an
MPEG-PES file if no DVB card is installed.
card=<1-4>
Specifies the device number to use if you have more than
one DVB output card (V3 API only, such as 1.x.y series
drivers).
<filename>
Allows specifying the output filename (default:
./grab.mpg).
zr (also see -zr* and -zrhelp)
Video output driver for a number of MJPEG capture/playback
cards.
zr2 (also see the zrmjpeg video filter)
Video output driver for a number of MJPEG capture/playback
cards, second generation.
dev=<device>
Specifies the video device to use.
norm=<PAL|NTSC|SECAM|auto>
Specifies the video norm to use (default: auto).
(no)prebuf
(De)Activate prebuffering, not yet supported.
md5sum
Calculate MD5 sums of each frame and write them to a file.
Supports RGB24 and YV12 colorspaces. Useful for debugging.
outfile=<value>
Specify the output filename (default: ./md5sums).
yuv4mpeg
Transforms the video stream into a sequence of uncompressed YUV
4:2:0 images and stores it in a file (default: ./stream.yuv).
The format is the same as the one employed by mjpegtools, so
this is useful if you want to process the video with the
mjpegtools suite. It supports the YV12, RGB (24 bpp) and BGR
(24 bpp) format. You can combine it with the -fixed-vo option
to concatenate files with the same dimensions and fps value.
interlaced
Write the output as interlaced frames, top field first.
interlaced_bf
Write the output as interlaced frames, bottom field
first.
file=<filename>
Write the output to <filename> instead of the default
stream.yuv.
NOTE: If you do not specify any option the output is progressive
(i.e. not interlaced).
gif89a
Output each frame into a single animated GIF file in the current
directory. It supports only RGB format with 24 bpp and the
output is converted to 256 colors.
<fps>
Float value to specify framerate (default: 5.0).
<filename>
Specify the output filename (default: ./out.gif).
NOTE: You must specify the framerate before the filename or the
framerate will be part of the filename.
EXAMPLE:
mplayer video.nut -vo gif89a:fps=15.0:filename=test.gif
jpeg
Output each frame into a JPEG file in the current directory.
Each file takes the frame number padded with leading zeros as
name.
[no]progressive
Specify standard or progressive JPEG (default:
noprogressive).
[no]baseline
Specify use of baseline or not (default: baseline).
optimize=<0-100>
optimization factor (default: 100)
smooth=<0-100>
smooth factor (default: 0)
quality=<0-100>
quality factor (default: 75)
outdir=<dirname>
Specify the directory to save the JPEG files to
(default: ./).
subdirs=<prefix>
Create numbered subdirectories with the specified prefix
to save the files in instead of the current directory.
maxfiles=<value>
Maximum number of files to be saved per subdirectory.
Must be equal to or larger than 1 (default: 1000).
pnm
Output each frame into a PNM file in the current directory.
Each file takes the frame number padded with leading zeros as
name. It supports PPM, PGM and PGMYUV files in both raw and
ASCII mode. Also see pnm(5), ppm(5) and pgm(5).
ppm
Write PPM files (default).
pgm
Write PGM files.
pgmyuv
Write PGMYUV files. PGMYUV is like PGM, but it also
contains the U and V plane, appended at the bottom of
the picture.
raw
Write PNM files in raw mode (default).
ascii
Write PNM files in ASCII mode.
outdir=<dirname>
Specify the directory to save the PNM files to (default:
./).
subdirs=<prefix>
Create numbered subdirectories with the specified prefix
to save the files in instead of the current directory.
maxfiles=<value>
Maximum number of files to be saved per subdirectory.
Must be equal to or larger than 1 (default: 1000).
png
Output each frame into a PNG file in the current directory.
Each file takes the frame number padded with leading zeros as
name. 24bpp RGB and BGR formats are supported.
z=<0-9>
Specifies the compression level. 0 is no compression, 9
is maximum compression.
tga
Output each frame into a Targa file in the current directory.
Each file takes the frame number padded with leading zeros as
name. The purpose of this video output driver is to have a
simple lossless image writer to use without any external
library. It supports the BGR[A] color format, with 15, 24 and
32 bpp. You can force a particular format with the format video
filter.
EXAMPLE:
mplayer video.nut -vf format=bgr15 -vo tga
DECODING/FILTERING OPTIONS
-ac <[-|+]codec1,[-|+]codec2,...[,]>
Specify a priority list of audio codecs to be used, according to
their codec name in codecs.conf. Use a ’-’ before the codec
name to omit it. Use a ’+’ before the codec name to force it,
this will likely crash! If the list has a trailing ’,’ MPlayer
will fall back on codecs not contained in the list.
NOTE: See -ac help for a full list of available codecs.
EXAMPLE:
-ac mp3acm
Force the l3codeca.acm MP3 codec.
-ac mad,
Try libmad first, then fall back on others.
-ac hwac3,a52,
Try hardware AC3 passthrough, software AC3, then others.
-ac -ffmp3,
Skip FFmpeg’s MP3 decoder.
-af-adv <force=(0-7):list=(filters)> (also see -af)
Specify advanced audio filter options:
force=<0-7>
Forces the insertion of audio filters to one of the
following:
0: Use completely automatic filter insertion.
1: Optimize for accuracy (default).
2: Optimize for speed. Warning: Some features in the
audio filters may silently fail, and the sound
quality may drop.
3: Use no automatic insertion of filters and no
optimization. Warning: It may be possible to crash
MPlayer using this setting.
4: Use automatic insertion of filters according to 0
above, but use floating point processing when
possible.
5: Use automatic insertion of filters according to 1
above, but use floating point processing when
possible.
6: Use automatic insertion of filters according to 2
above, but use floating point processing when
possible.
7: Use no automatic insertion of filters according to
3 above, and use floating point processing when
possible.
list=<filters>
Same as -af.
-afm <driver1,driver2,...>
Specify a priority list of audio codec families to be used,
according to their codec name in codecs.conf. Falls back on the
default codecs if none of the given codec families work.
NOTE: See -afm help for a full list of available codec families.
EXAMPLE:
-afm ffmpeg
Try FFmpeg’s libavcodec codecs first.
-afm acm,dshow
Try Win32 codecs first.
-aspect <ratio> (also see -zoom)
Override movie aspect ratio, in case aspect information is
incorrect or missing in the file being played.
EXAMPLE:
-aspect 4:3 or -aspect 1.3333
-aspect 16:9 or -aspect 1.7777
-noaspect
Disable automatic movie aspect ratio compensation.
-flip
Flip image upside-down.
-lavdopts <option1:option2:...> (DEBUG CODE)
Specify libavcodec decoding parameters.
EXAMPLE:
-lavdopts bug=1
Available options are:
bitexact
Only use bit-exact algorithms in all decoding steps (for
codec testing).
bug=<value>
Manually work around encoder bugs.
0: nothing
1: autodetect bugs (default)
2 (msmpeg4v3): some old lavc generated msmpeg4v3
files (no autodetection)
4 (mpeg4): XviD interlacing bug (autodetected if
fourcc==XVIX)
8 (mpeg4): UMP4 (autodetected if fourcc==UMP4)
16 (mpeg4): padding bug (autodetected)
32 (mpeg4): illegal vlc bug (autodetected per fourcc)
64 (mpeg4): XviD and DivX qpel bug (autodetected per
fourcc/version)
128 (mpeg4): old standard qpel (autodetected per
fourcc/version)
256 (mpeg4): another qpel bug (autodetected per
fourcc/version)
512 (mpeg4): direct-qpel-blocksize bug (autodetected
per fourcc/version)
1024 (mpeg4): edge padding bug (autodetected per
fourcc/version)
debug=<value>
Display debugging information.
0: disabled
1: picture info
2: rate control
4: bitstream
8: macroblock (MB) type
16: per-block quantization parameter (QP)
32: motion vector
0x0040: motion vector visualization (use -noslices)
0x0080: macroblock (MB) skip
0x0100: startcode
0x0200: PTS
0x0400: error resilience
0x0800: memory management control operations (H.264)
0x1000: bugs
0x2000: Visualize quantization parameter (QP), lower
QP are tinted greener.
0x4000: Visualize block types.
ec=<value>
Set error concealment strategy.
1: Use strong deblock filter for damaged MBs.
2: iterative motion vector (MV) search (slow)
3: all (default)
er=<value>
Set error resilience strategy.
0: disabled
1: careful (Should work with broken encoders.)
2: normal (default) (Works with compliant encoders.)
3: aggressive (More checks, but might cause problems
even for valid bitstreams.)
4: very aggressive
fast
Enable optimizations which do not comply to the
specification and might potentially cause problems, like
simpler dequantization, assuming use of the default
quantization matrix, assuming YUV 4:2:0 and skipping a
few checks to detect damaged bitstreams.
gray
grayscale only decoding (a bit faster than with color)
idct=<0-99> (see -lavcopts)
For best decoding quality use the same IDCT algorithm
for decoding and encoding. This may come at a price in
accuracy, though.
lowres=<number>[,<w>]
Decode at lower resolutions. Low resolution decoding is
not supported by all codecs, and it will often result in
ugly artifacts. This is not a bug, but a side effect of
not decoding at full resolution.
0: disabled
1: 1/2 resolution
2: 1/4 resolution
3: 1/8 resolution
If <w> is specified lowres decoding will be used only if
the width of the video is major than or equal to <w>.
sb=<number> (MPEG-2 only)
Skip the given number of macroblock rows at the bottom.
st=<number> (MPEG-2 only)
Skip the given number of macroblock rows at the top.
skiploopfilter=<skipvalue>
Skips the loop filter (AKA deblocking) during H.264
decoding. Since the filtered frame is supposed to be
used as reference for decoding dependant frames this has
a worse effect on quality than not doing deblocking on
e.g. MPEG-2 video. But at least for high bitrate HDTV
this provides a big speedup with no visible quality
loss.
<skipvalue> can be either one of the following:
none: Never skip.
default: Skip useless processing steps (e.g. 0 size
packets in AVI).
nonref: Skip frames that are not referenced (i.e. not
used for decoding other frames, the error cannot
"build up").
bidir: Skip B-Frames.
nonkey: Skip all frames except keyframes.
all: Skip all frames.
skipidct=<skipvalue>
Skips the IDCT step. This degrades quality a lot of in
almost all cases (see skiploopfilter for available skip
values).
skipframe=<skipvalue>
Skips decoding of frames completely. Big speedup, but
jerky motion and sometimes bad artifacts (see
skiploopfilter for available skip values).
threads=<1-8>
number of threads to use for decoding (default: 1)
vismv=<value>
Visualize motion vectors.
0: disabled
1: Visualize forward predicted MVs of P-frames.
2: Visualize forward predicted MVs of B-frames.
4: Visualize backward predicted MVs of B-frames.
vstats
Prints some statistics and stores them in
./vstats_*.log.
-noslices
Disable drawing video by 16-pixel height slices/bands, instead
draws the whole frame in a single run. May be faster or slower,
depending on card/cache. It has effect only with libmpeg2 and
libavcodec codecs.
-nosound
Do not play/encode sound. Useful for benchmarking.
-novideo
Do not play/encode video. In many cases this will not work, use
-vc null -vo null instead.
-oldpp <quality> (OpenDivX only) (OBSOLETE)
Use the OpenDivX postprocessing code instead of the internal
one. Superseded by -pp, the internal postprocessing offers
better quality and performance. The valid range of -oldpp
values varies by codec, it is mostly 0-6, where 0=disable,
6=slowest/best.
-pp <quality> (also see -vf pp)
Set the DLL postprocess level. This option is no longer usable
with -vf pp. It only works with Win32 DirectShow DLLs with
internal postprocessing routines. The valid range of -pp values
varies by codec, it is mostly 0-6, where 0=disable, 6=slowest/
best.
-pphelp (also see -vf pp)
Show a summary about the available postprocess filters and their
usage.
-ssf <mode>
Specifies software scaler parameters.
EXAMPLE:
-vf scale -ssf lgb=3.0
lgb=<0-100>
gaussian blur filter (luma)
cgb=<0-100>
gaussian blur filter (chroma)
ls=<0-100>
sharpen filter (luma)
cs=<0-100>
sharpen filter (chroma)
chs=<h>
chroma horizontal shifting
cvs=<v>
chroma vertical shifting
-stereo <mode>
Select type of MP2/MP3 stereo output.
0 stereo
1 left channel
2 right channel
-sws <software scaler type> (also see -vf scale and -zoom)
Specify the software scaler algorithm to be used with the -zoom
option. This affects video output drivers which lack hardware
acceleration, e.g. x11.
Available types are:
0 fast bilinear
1 bilinear
2 bicubic (good quality) (default)
3 experimental
4 nearest neighbor (bad quality)
5 area
6 luma bicubic / chroma bilinear
7 gauss
8 sincR
9 lanczos
10 natural bicubic spline
NOTE: Some -sws options are tunable. The description of the
scale video filter has further information.
-vc <[-|+]codec1,[-|+]codec2,...[,]>
Specify a priority list of video codecs to be used, according to
their codec name in codecs.conf. Use a ’-’ before the codec
name to omit it. Use a ’+’ before the codec name to force it,
this will likely crash! If the list has a trailing ’,’ MPlayer
will fall back on codecs not contained in the list.
NOTE: See -vc help for a full list of available codecs.
EXAMPLE:
-vc divx
Force Win32/VfW DivX codec, no fallback.
-vc divx4,
Try divx4linux codec first, then fall back on others.
-vc -divxds,-divx,
Skip Win32 DivX codecs.
-vc ffmpeg12,mpeg12,
Try libavcodec’s MPEG-1/2 codec, then libmpeg2, then
others.
-vfm <driver1,driver2,...>
Specify a priority list of video codec families to be used,
according to their names in codecs.conf. Falls back on the
default codecs if none of the given codec families work.
NOTE: See -vfm help for a full list of available codec families.
EXAMPLE:
-vfm ffmpeg,dshow,vfw
Try the libavcodec, then Directshow, then VfW codecs and
fall back on others, if they do not work.
-vfm xanim
Try XAnim codecs first.
-x <x> (also see -zoom) (MPlayer only)
Scale image to width <x> (if software/hardware scaling is
available). Disables aspect calculations.
-xvidopts <option1:option2:...>
Specify additional parameters when decoding with XviD.
NOTE: Since libavcodec is faster than XviD you might want to use
the libavcodec postprocessing filter (-vf pp) and decoder (-vfm
ffmpeg) instead.
XviD’s internal postprocessing filters:
deblock-chroma
chroma deblock filter
deblock-luma
luma deblock filter
dering-luma
luma deringing filter
dering-chroma
chroma deringing filter
filmeffect
Adds artificial film grain to the video. May increase
perceived quality, while lowering true quality.
rendering methods:
dr2
Activate direct rendering method 2.
nodr2
Deactivate direct rendering method 2.
-xy <value> (also see -zoom)
value<=8
Scale image by factor <value>.
value>8
Set width to value and calculate height to keep correct
aspect ratio.
-y <y> (also see -zoom) (MPlayer only)
Scale image to height <y> (if software/hardware scaling is
available). Disables aspect calculations.
-zoom
Allow software scaling, where available. This will allow
scaling with output drivers (like x11, fbdev) that do not
support hardware scaling where MPlayer disables scaling by
default for performance reasons.
AUDIO FILTERS
Audio filters allow you to modify the audio stream and its properties.
The syntax is:
-af <filter1[=parameter1:parameter2:...],filter2,...>
Setup a chain of audio filters.
NOTE: To get a full list of available audio filters, see -af help.
Available filters are:
resample[=srate[:sloppy[:type]]]
Changes the sample rate of the audio stream. Can be used if you
have a fixed frequency sound card or if you are stuck with an
old sound card that is only capable of max 44.1kHz. This filter
is automatically enabled if necessary. It only supports 16-bit
integer and float in native-endian format as input.
NOTE: With MEncoder, you need to also use -srate <srate>.
<srate>
output sample frequency in Hz. The valid range for this
parameter is 8000 to 192000. If the input and output
sample frequency are the same or if this parameter is
omitted the filter is automatically unloaded. A high
sample frequency normally improves the audio quality,
especially when used in combination with other filters.
<sloppy>
Allow (1) or disallow (0) the output frequency to differ
slightly from the frequency given by <srate> (default:
1). Can be used if the startup of the playback is
extremely slow.
<type>
Selects which resampling method to use.
0: linear interpolation (fast, poor quality
especially when upsampling)
1: polyphase filterbank and integer processing
2: polyphase filterbank and floating point processing
(slow, best quality)
EXAMPLE:
mplayer -af resample=44100:0:0
would set the output frequency of the resample filter to
44100Hz using exact output frequency scaling and linear
interpolation.
lavcresample[=srate[:length[:linear[:count[:cutoff]]]]]
Changes the sample rate of the audio stream to an integer
<srate> in Hz. It only supports the 16-bit native-endian
format.
NOTE: With MEncoder, you need to also use -srate <srate>.
<srate>
the output sample rate
<length>
length of the filter with respect to the lower sampling
rate (default: 16)
<linear>
if 1 then filters will be linearly interpolated between
polyphase entries
<count>
log2 of the number of polyphase entries (..., 10->1024,
11->2048, 12->4096, ...) (default: 10->1024)
<cutoff>
cutoff frequency (0.0-1.0), default set depending upon
filter length
sweep[=speed]
Produces a sine sweep.
<0.0-1.0>
Sine function delta, use very low values to hear the
sweep.
hrtf[=flag]
Head-related transfer function: Converts multichannel audio to 2
channel output for headphones, preserving the spatiality of the
sound.
Flag Meaning
m matrix decoding of the rear channel
s 2-channel matrix decoding
0 no matrix decoding (default)
equalizer=[g1:g2:g3:...:g10]
10 octave band graphic equalizer, implemented using 10 IIR band
pass filters. This means that it works regardless of what type
of audio is being played back. The center frequencies for the
10 bands are:
No. frequency
0 31.25 Hz
1 62.50 Hz
2 125.00 Hz
3 250.00 Hz
4 500.00 Hz
5 1.00 kHz
6 2.00 kHz
7 4.00 kHz
8 8.00 kHz
9 16.00 kHz
If the sample rate of the sound being played is lower than the
center frequency for a frequency band, then that band will be
disabled. A known bug with this filter is that the
characteristics for the uppermost band are not completely
symmetric if the sample rate is close to the center frequency of
that band. This problem can be worked around by upsampling the
sound using the resample filter before it reaches this filter.
<g1>:<g2>:<g3>:...:<g10>
floating point numbers representing the gain in dB for
each frequency band (-12-12)
EXAMPLE:
mplayer -af equalizer=11:11:10:5:0:-12:0:5:12:12 media.avi
Would amplify the sound in the upper and lower frequency
region while canceling it almost completely around 1kHz.
channels=nch[:nr:from1:to1:from2:to2:from3:to3:...]
Can be used for adding, removing, routing and copying audio
channels. If only <nch> is given the default routing is used,
it works as follows: If the number of output channels is bigger
than the number of input channels empty channels are inserted
(except mixing from mono to stereo, then the mono channel is
repeated in both of the output channels). If the number of
output channels is smaller than the number of input channels the
exceeding channels are truncated.
<nch>
number of output channels (1-6)
<nr>
number of routes (1-6)
<from1:to1:from2:to2:from3:to3:...>
Pairs of numbers between 0 and 5 that define where to
route each channel.
EXAMPLE:
mplayer -af channels=4:4:0:1:1:0:2:2:3:3 media.avi
Would change the number of channels to 4 and set up 4
routes that swap channel 0 and channel 1 and leave
channel 2 and 3 intact. Observe that if media
containing two channels was played back, channels 2 and
3 would contain silence but 0 and 1 would still be
swapped.
mplayer -af channels=6:4:0:0:0:1:0:2:0:3 media.avi
Would change the number of channels to 6 and set up 4
routes that copy channel 0 to channels 0 to 3. Channel
4 and 5 will contain silence.
format[=format] (also see -format)
Convert between different sample formats. Automatically enabled
when needed by the sound card or another filter.
<format>
Sets the desired format. The general form is ’sbe’,
where ’s’ denotes the sign (either ’s’ for signed or ’u’
for unsigned), ’b’ denotes the number of bits per sample
(16, 24 or 32) and ’e’ denotes the endianness (’le’
means little-endian, ’be’ big-endian and ’ne’ the
endianness of the computer MPlayer is running on).
Valid values (amongst others) are: ’s16le’, ’u32be’ and
’u24ne’. Exceptions to this rule that are also valid
format specifiers: u8, s8, floatle, floatbe, floatne,
mulaw, alaw, mpeg2, ac3 and imaadpcm.
volume[=v[:sc]]
Implements software volume control. Use this filter with
caution since it can reduce the signal to noise ratio of the
sound. In most cases it is best to set the level for the PCM
sound to max, leave this filter out and control the output level
to your speakers with the master volume control of the mixer.
In case your sound card has a digital PCM mixer instead of an
analog one, and you hear distortion, use the MASTER mixer
instead. If there is an external amplifier connected to the
computer (this is almost always the case), the noise level can
be minimized by adjusting the master level and the volume knob
on the amplifier until the hissing noise in the background is
gone.
This filter has a second feature: It measures the overall
maximum sound level and prints out that level when MPlayer
exits. This volume estimate can be used for setting the sound
level in MEncoder such that the maximum dynamic range is
utilized.
NOTE: This filter is not reentrant and can therefore only be
enabled once for every audio stream.
<v>
Sets the desired gain in dB for all channels in the
stream from -200dB to +60dB, where -200dB mutes the
sound completely and +60dB equals a gain of 1000
(default: 0).
<sc>
Turns soft clipping on (1) or off (0). Soft-clipping
can make the sound more smooth if very high volume
levels are used. Enable this option if the dynamic
range of the loudspeakers is very low.
WARNING: This feature creates distortion and should be
considered a last resort.
EXAMPLE:
mplayer -af volume=10.1:0 media.avi
Would amplify the sound by 10.1dB and hard-clip if the
sound level is too high.
pan=n[:l01:l02:...l10:l11:l12:...ln0:ln1:ln2:...]
Mixes channels arbitrarily. Basically a combination of the
volume and the channels filter that can be used to down-mix many
channels to only a few, e.g. stereo to mono or vary the "width"
of the center speaker in a surround sound system. This filter
is hard to use, and will require some tinkering before the
desired result is obtained. The number of options for this
filter depends on the number of output channels. An example how
to downmix a six-channel file to two channels with this filter
can be found in the examples section near the end.
<n>
number of output channels (1-6)
<lij>
How much of input channel i is mixed into output channel
j (0-1). So in principle you first have n numbers
saying what to do with the first input channel, then n
numbers that act on the second input channel etc. If
you do not specify any numbers for some input channels,
0 is assumed.
EXAMPLE:
mplayer -af pan=1:0.5:0.5 media.avi
Would down-mix from stereo to mono.
mplayer -af pan=3:1:0:0.5:0:1:0.5 media.avi
Would give 3 channel output leaving channels 0 and 1
intact, and mix channels 0 and 1 into output channel 2
(which could be sent to a subwoofer for example).
sub[=fc:ch]
Adds a subwoofer channel to the audio stream. The audio data
used for creating the subwoofer channel is an average of the
sound in channel 0 and channel 1. The resulting sound is then
low-pass filtered by a 4th order Butterworth filter with a
default cutoff frequency of 60Hz and added to a separate channel
in the audio stream.
Warning: Disable this filter when you are playing DVDs with
Dolby Digital 5.1 sound, otherwise this filter will disrupt the
sound to the subwoofer.
<fc>
cutoff frequency in Hz for the low-pass filter (20Hz to
300Hz) (default: 60Hz) For the best result try setting
the cutoff frequency as low as possible. This will
improve the stereo or surround sound experience.
<ch>
Determines the channel number in which to insert the
sub-channel audio. Channel number can be between 0 and
5 (default: 5). Observe that the number of channels
will automatically be increased to <ch> if necessary.
EXAMPLE:
mplayer -af sub=100:4 -channels 5 media.avi
Would add a sub-woofer channel with a cutoff frequency
of 100Hz to output channel 4.
center
Creates a center channel from the front channels. May currently
be low quality as it does not implement a high-pass filter for
proper extraction yet, but averages and halves the channels
instead.
<ch>
Determines the channel number in which to insert the
center channel. Channel number can be between 0 and 5
(default: 5). Observe that the number of channels will
automatically be increased to <ch> if necessary.
surround[=delay]
Decoder for matrix encoded surround sound like Dolby Surround.
Many files with 2 channel audio actually contain matrixed
surround sound. Requires a sound card supporting at least 4
channels.
<delay>
delay time in ms for the rear speakers (0 to 1000)
(default: 20) This delay should be set as follows: If d1
is the distance from the listening position to the front
speakers and d2 is the distance from the listening
position to the rear speakers, then the delay should be
set to 15ms if d1 <= d2 and to 15 + 5*(d1-d2) if d1 >
d2.
EXAMPLE:
mplayer -af surround=15 -channels 4 media.avi
Would add surround sound decoding with 15ms delay for
the sound to the rear speakers.
delay[=ch1:ch2:...]
Delays the sound to the loudspeakers such that the sound from
the different channels arrives at the listening position
simultaneously. It is only useful if you have more than 2
loudspeakers.
ch1,ch2,...
The delay in ms that should be imposed on each channel
(floating point number between 0 and 1000).
To calculate the required delay for the different channels do as
follows:
1. Measure the distance to the loudspeakers in meters in
relation to your listening position, giving you the distances
s1 to s5 (for a 5.1 system). There is no point in
compensating for the subwoofer (you will not hear the
difference anyway).
2. Subtract the distances s1 to s5 from the maximum distance,
i.e. s[i] = max(s) - s[i]; i = 1...5.
3. Calculate the required delays in ms as d[i] = 1000*s[i]/342;
i = 1...5.
EXAMPLE:
mplayer -af delay=10.5:10.5:0:0:7:0 media.avi
Would delay front left and right by 10.5ms, the two rear
channels and the sub by 0ms and the center channel by
7ms.
export[=mmapped_file[:nsamples]]
Exports the incoming signal to other processes using memory
mapping (mmap()). Memory mapped areas contain a header:
int nch /*number of channels*/
int size /*buffer size*/
unsigned long long counter /*Used to keep sync, updated every
time new data is exported.*/
The rest is payload (non-interleaved) 16 bit data.
<mmapped_file>
file to map data to (default: ~/.mplayer/mplayer-
af_export)
<nsamples>
number of samples per channel (default: 512)
EXAMPLE:
mplayer -af export=/tmp/mplayer-af_export:1024 media.avi
Would export 1024 samples per channel to ’/tmp/mplayer-
af_export’.
extrastereo[=mul]
(Linearly) increases the difference between left and right
channels which adds some sort of "live" effect to playback.
<mul>
Sets the difference coefficient (default: 2.5). 0.0
means mono sound (average of both channels), with 1.0
sound will be unchanged, with -1.0 left and right
channels will be swapped.
volnorm[=method:target]
Maximizes the volume without distorting the sound.
<method>
Sets the used method.
1: Use a single sample to smooth the variations via
the standard weighted mean over past samples
(default).
2: Use several samples to smooth the variations via
the standard weighted mean over past samples.
<target>
Sets the target amplitude as a fraction of the maximum
for the sample type (default: 0.25).
ladspa=file:label[:controls...]
Load a LADSPA (Linux Audio Developer’s Simple Plugin API)
plugin. This filter is reentrant, so multiple LADSPA plugins
can be used at once.
<file>
Specifies the LADSPA plugin library file. If
LADSPA_PATH is set, it searches for the specified file.
If it is not set, you must supply a fully specified
pathname.
<label>
Specifies the filter within the library. Some libraries
contain only one filter, but others contain many of
them. Entering ’help’ here, will list all available
filters within the specified library, which eliminates
the use of ’listplugins’ from the LADSPA SDK.
<controls>
Controls are zero or more floating point values that
determine the behavior of the loaded plugin (for example
delay, threshold or gain). In verbose mode (add -v to
the MPlayer command line), all available controls and
their valid ranges are printed. This eliminates the use
of ’analyseplugin’ from the LADSPA SDK.
comp
Compressor/expander filter usable for microphone input.
Prevents artifacts on very loud sound and raises the volume on
very low sound. This filter is untested, maybe even unusable.
gate
Noise gate filter similar to the comp audio filter. This filter
is untested, maybe even unusable.
VIDEO FILTERS
Video filters allow you to modify the video stream and its properties.
The syntax is:
-vf <filter1[=parameter1:parameter2:...],filter2,...>
Setup a chain of video filters.
-vop <...,filter2[=parameter1:parameter2:...],filter1> (OBSOLETE)
Setup a chain of video filters, to be applied in reverse order.
Deprecated in favor of -vf.
Many parameters are optional and set to default values if omitted. To
explicitly use a default value set a parameter to ’-1’. Parameters w:h
means width x height in pixels, x:y means x;y position counted from the
upper left corner of the bigger image.
NOTE: To get a full list of available video filters, see -vf help.
Video filters are managed in lists. There are a few commands to manage
the filter list.
-vf-add <filter1[,filter2,...]>
Appends the filters given as arguments to the filter list.
-vf-pre <filter1[,filter2,...]>
Prepends the filters given as arguments to the filter list.
-vf-del <index1[,index2,...]>
Deletes the filters at the given indexes. Index numbers start
at 0, negative numbers address the end of the list (-1 is the
last).
-vf-clr
Completely empties the filter list.
With filters that support it, you can access parameters by their name.
-vf <filter>=help
Prints the parameter names and parameter value ranges for a
particular filter.
-vf <filter=named_parameter1=value1[:named_parameter2=value2:...]>
Sets a named parameter to the given value. Use on and off or
yes and no to set flag parameters.
Available filters are:
crop[=w:h:x:y]
Crops the given part of the image and discards the rest. Useful
to remove black bands from widescreen movies.
<w>,<h>
Cropped width and height, defaults to original width and
height.
<x>,<y>
Position of the cropped picture, defaults to center.
cropdetect[=limit:round]
Calculates necessary cropping parameters and prints the
recommended parameters to stdout.
<limit>
Threshold, which can be optionally specified from
nothing (0) to everything (255) (default: 24).
<round>
Value which the width/height should be divisible by
(default: 16). The offset is automatically adjusted to
center the video. Use 2 to get only even dimensions
(needed for 4:2:2 video). 16 is best when encoding to
most video codecs.
rectangle[=w:h:x:y]
The plugin responds to the input.conf directive
’change_rectangle’ that takes two parameters.
<w>,<h>
width and height (default: -1, maximum possible width
where boundaries are still visible.)
<x>,<y>
top left corner position (default: -1, uppermost
leftmost)
expand[=w:h:x:y:o:a:r]
Expands (not scales) movie resolution to the given value and
places the unscaled original at coordinates x, y. Can be used
for placing subtitles/OSD in the resulting black bands.
<w>,<h>
Expanded width,height (default: original width,height).
Negative values for w and h are treated as offsets to
the original size.
EXAMPLE:
expand=0:-50:0:0
Adds a 50 pixel border to the bottom of the
picture.
<x>,<y>
position of original image on the expanded image
(default: center)
<o>
OSD/subtitle rendering
0: disable (default)
1: enable
<a>
Expands to fit an aspect instead of a resolution
(default: 0).
EXAMPLE:
expand=800::::4/3
Expands to 800x600, unless the source is
higher resolution, in which case it expands
to fill a 4/3 aspect.
<r>
Rounds up to make both width and height divisible by <r>
(default: 1).
flip (also see -flip)
Flips the image upside down.
mirror
Mirrors the image on the Y axis.
rotate[=<0-7>]
Rotates the image by 90 degrees and optionally flips it. For
values between 4-7 rotation is only done if the movie geometry
is portrait and not landscape.
0 Rotate by 90 degrees clockwise and flip (default).
1 Rotate by 90 degrees clockwise.
2 Rotate by 90 degrees counterclockwise.
3 Rotate by 90 degrees counterclockwise and flip.
scale[=w:h[:interlaced[:chr_drop[:param[:param2[:presize]]]]]]
Scales the image with the software scaler (slow) and performs a
YUV<->RGB colorspace conversion (also see -sws).
<w>,<h>
scaled width/height (default: original width/height)
NOTE: If -zoom is used, and underlying filters
(including libvo) are incapable of scaling, it defaults
to d_width/d_height!
0: scaled d_width/d_height
-1: original width/height
-2: Calculate w/h using the other dimension and the
prescaled aspect ratio.
-3: Calculate w/h using the other dimension and the
original aspect ratio.
-(n+8): Like -n above, but rounding the dimension to
the closest multiple of 16.
<interlaced>
Toggle interlaced scaling.
0: off (default)
1: on
<chr_drop>
chroma skipping
0: Use all available input lines for chroma.
1: Use only every 2. input line for chroma.
2: Use only every 4. input line for chroma.
3: Use only every 8. input line for chroma.
<param>[:<param2>] (also see -sws)
Set some scaling parameters depending on the type of
scaler selected with -sws.
-sws 2 (bicubic): B (blurring) and C (ringing)
0.00:0.60 default
0.00:0.75 VirtualDub’s "precise bicubic"
0.00:0.50 Catmull-Rom spline
0.33:0.33 Mitchell-Netravali spline
1.00:0.00 cubic B-spline
-sws 7 (gaussian): sharpness (0 (soft) - 100 (sharp))
-sws 9 (lanczos): filter length (1-10)
<presize>
Scale to preset sizes.
qntsc: 352x240 (NTSC quarter screen)
qpal: 352x288 (PAL quarter screen)
ntsc: 720x480 (standard NTSC)
pal: 720x576 (standard PAL)
sntsc: 640x480 (square pixel NTSC)
spal: 768x576 (square pixel PAL)
dsize[=aspect|w:h:aspect-method:r]
Changes the intended display size/aspect at an arbitrary point
in the filter chain. Aspect can be given as a fraction (4/3) or
floating point number (1.33). Alternatively, you may specify
the exact display width and height desired. Note that this
filter does not do any scaling itself; it just affects what
later scalers (software or hardware) will do when auto-scaling
to correct aspect.
<w>,<h>
New display width and height. Can also be these special
values:
0: original display width and height
-1: original video width/height (default)
-2: Calculate w/h using the other dimension and the
original display aspect ratio.
-3: Calculate w/h using the other dimension and the
original video aspect ratio.
EXAMPLE:
dsize=800:-2
Specifies a display resolution of 800x600
for a 4/3 aspect video, or 800x450 for a
16/9 aspect video.
<aspect-method>
Modifies width and height according to original aspect
ratios.
-1: Ignore original aspect ratio (default).
0: Keep display aspect ratio by using <w> and <h> as
maximum resolution.
1: Keep display aspect ratio by using <w> and <h> as
minimum resolution.
2: Keep video aspect ratio by using <w> and <h> as
maximum resolution.
3: Keep video aspect ratio by using <w> and <h> as
minimum resolution.
EXAMPLE:
dsize=800:600:0
Specifies a display resolution of at most
800x600, or smaller, in order to keep
aspect.
<r>
Rounds up to make both width and height divisible by <r>
(default: 1).
yuy2
Forces software YV12/I420/422P to YUY2 conversion. Useful for
video cards/drivers with slow YV12 but fast YUY2 support.
yvu9
Forces software YVU9 to YV12 colorspace conversion. Deprecated
in favor of the software scaler.
yuvcsp
Clamps YUV color values to the CCIR 601 range without doing real
conversion.
rgb2bgr[=swap]
RGB 24/32 <-> BGR 24/32 colorspace conversion.
swap
Also perform R <-> B swapping.
palette
RGB/BGR 8 -> 15/16/24/32bpp colorspace conversion using palette.
format[=fourcc]
Restricts the colorspace for the next filter without doing any
conversion. Use together with the scale filter for a real
conversion.
NOTE: For a list of available formats see format=fmt=help.
<fourcc>
format name like rgb15, bgr24, yv12, etc (default: yuy2)
noformat[=fourcc]
Restricts the colorspace for the next filter without doing any
conversion. Unlike the format filter, this will allow any
colorspace except the one you specify.
NOTE: For a list of available formats see noformat=fmt=help.
<fourcc>
format name like rgb15, bgr24, yv12, etc (default: yv12)
pp[=filter1[:option1[:option2...]]/[-]filter2...] (also see -pphelp)
Enables the specified chain of postprocessing subfilters.
Subfilters must be separated by ’/’ and can be disabled by
prepending a ’-’. Each subfilter and some options have a short
and a long name that can be used interchangeably, i.e. dr/dering
are the same. All subfilters share common options to determine
their scope:
a/autoq
Automatically switch the subfilter off if the CPU is too
slow.
c/chrom
Do chrominance filtering, too (default).
y/nochrom
Do luminance filtering only (no chrominance).
n/noluma
Do chrominance filtering only (no luminance).
NOTE: -pphelp shows a list of available subfilters.
Available subfilters are
hb/hdeblock[:difference[:flatness]]
horizontal deblocking filter
<difference>: Difference factor where higher values
mean more deblocking (default: 32).
<flatness>: Flatness threshold where lower values
mean more deblocking (default: 39).
vb/vdeblock[:difference[:flatness]]
vertical deblocking filter
<difference>: Difference factor where higher values
mean more deblocking (default: 32).
<flatness>: Flatness threshold where lower values
mean more deblocking (default: 39).
ha/hadeblock[:difference[:flatness]]
accurate horizontal deblocking filter
<difference>: Difference factor where higher values
mean more deblocking (default: 32).
<flatness>: Flatness threshold where lower values
mean more deblocking (default: 39).
va/vadeblock[:difference[:flatness]]
accurate vertical deblocking filter
<difference>: Difference factor where higher values
mean more deblocking (default: 32).
<flatness>: Flatness threshold where lower values
mean more deblocking (default: 39).
The horizontal and vertical deblocking filters share the
difference and flatness values so you cannot set different
horizontal and vertical thresholds.
h1/x1hdeblock
experimental horizontal deblocking filter
v1/x1vdeblock
experimental vertical deblocking filter
dr/dering
deringing filter
tn/tmpnoise[:threshold1[:threshold2[:threshold3]]]
temporal noise reducer
<threshold1>: larger -> stronger filtering
<threshold2>: larger -> stronger filtering
<threshold3>: larger -> stronger filtering
al/autolevels[:f/fullyrange]
automatic brightness / contrast correction
f/fullyrange: Stretch luminance to (0-255).
lb/linblenddeint
Linear blend deinterlacing filter that deinterlaces the
given block by filtering all lines with a (1 2 1)
filter.
li/linipoldeint
Linear interpolating deinterlacing filter that
deinterlaces the given block by linearly interpolating
every second line.
ci/cubicipoldeint
Cubic interpolating deinterlacing filter deinterlaces
the given block by cubically interpolating every second
line.
md/mediandeint
Median deinterlacing filter that deinterlaces the given
block by applying a median filter to every second line.
fd/ffmpegdeint
FFmpeg deinterlacing filter that deinterlaces the given
block by filtering every second line with a (-1 4 2 4
-1) filter.
l5/lowpass5
Vertically applied FIR lowpass deinterlacing filter that
deinterlaces the given block by filtering all lines with
a (-1 2 6 2 -1) filter.
fq/forceQuant[:quantizer]
Overrides the quantizer table from the input with the
constant quantizer you specify.
<quantizer>: quantizer to use
de/default
default pp filter combination (hb:a,vb:a,dr:a)
fa/fast
fast pp filter combination (h1:a,v1:a,dr:a)
ac
high quality pp filter combination
(ha:a:128:7,va:a,dr:a)
EXAMPLE:
-vf pp=hb/vb/dr/al
horizontal and vertical deblocking, deringing and
automatic brightness/contrast
-vf pp=de/-al
default filters without brightness/contrast correction
-vf pp=default/tmpnoise:1:2:3
Enable default filters & temporal denoiser.
-vf pp=hb:y/vb:a
Horizontal deblocking on luminance only, and switch
vertical deblocking on or off automatically depending on
available CPU time.
spp[=quality[:qp[:mode]]]
Simple postprocessing filter that compresses and decompresses
the image at several (or - in the case of quality level 6 - all)
shifts and averages the results.
<quality>
0-6 (default: 3)
<qp>
Force quantization parameter (default: 0, use QP from
video).
<mode>
0: hard thresholding (default)
1: soft thresholding (better deringing, but blurrier)
4: like 0, but also use B-frames’ QP (may cause flicker)
5: like 1, but also use B-frames’ QP (may cause flicker)
uspp[=quality[:qp]]
Ultra simple & slow postprocessing filter that compresses and
decompresses the image at several (or - in the case of quality
level 8 - all) shifts and averages the results. The way this
differs from the behavior of spp is that uspp actually encodes &
decodes each case with libavcodec MPEG-4, whereas spp uses a
simplified intra only 8x8 DCT similar to MJPEG.
<quality>
0-8 (default: 3)
<qp>
Force quantization parameter (default: 0, use QP from
video).
fspp[=quality[:qp[:strength[:bframes]]]]
faster version of the simple postprocessing filter
<quality>
4-5 (equivalent to spp; default: 4)
<qp>
Force quantization parameter (default: 0, use QP from
video).
<-15-32>
Filter strength, lower values mean more details but also
more artifacts, while higher values make the image
smoother but also blurrier (default: 0 - PSNR optimal).
<bframes>
0: do not use QP from B-frames (default)
1: use QP from B-frames too (may cause flicker)
pp7[=qp[:mode]]
Variant of the spp filter, similar to spp=6 with 7 point DCT
where only the center sample is used after IDCT.
<qp> Force quantization parameter (default: 0, use QP from
video).
<mode>
0: hard thresholding
1: soft thresholding (better deringing, but blurrier)
2: medium thresholding (default, good results)
qp=equation
quantization parameter (QP) change filter
<equation>
some equation like "2+2*sin(PI*qp)"
test
Generate various test patterns.
rgbtest
Generate an RGB test pattern useful for detecting RGB vs BGR
issues. You should see a red, green and blue stripe from top to
bottom.
lavc[=quality:fps]
Fast software YV12 to MPEG-1 conversion with libavcodec for use
with DVB/DXR3. Faster and of better quality than -vf fame.
<quality>
1-31: fixed qscale
32-: fixed bitrate in kbits
<fps>
force output fps (float value) (default: 0, autodetect
based on height)
fame
Fast software YV12 to MPEG-1 conversion with libfame for use
with DVB/DXR3.
dvbscale[=aspect]
Set up optimal scaling for DVB cards, scaling the x axis in
hardware and calculating the y axis scaling in software to keep
aspect. Only useful together with expand and scale.
<aspect>
Control aspect ratio, calculate as
DVB_HEIGHT*ASPECTRATIO (default: 576*4/3=768), set it to
576*(16/9)=1024 for a 16:9 TV.
EXAMPLE:
-vf dvbscale,scale=-1:0,expand=-1:576:-1:-1:1,lavc
FIXME: Explain what this does.
noise[=luma[u][t|a][h][p]:chroma[u][t|a][h][p]]
Adds noise.
<0-100>
luma noise
<0-100>
chroma noise
u uniform noise (gaussian otherwise)
t temporal noise (noise pattern changes between frames)
a averaged temporal noise (smoother, but a lot slower)
h high quality (slightly better looking, slightly slower)
p mix random noise with a (semi)regular pattern
denoise3d[=luma:chroma:time]
This filter aims to reduce image noise producing smooth images
and making still images really still (This should enhance
compressibility.).
<luma>
spatial luma strength (default: 4)
<chroma>
spatial chroma strength (default: 3)
<time>
temporal strength (default: 6)
hqdn3d[=luma:chroma:time]
High precision/quality version of the denoise3d filter.
Parameters and usage are the same.
eq[=brightness:contrast] (OBSOLETE)
Software equalizer with interactive controls just like the
hardware equalizer, for cards/drivers that do not support
brightness and contrast controls in hardware. Might also be
useful with MEncoder, either for fixing poorly captured movies,
or for slightly reducing contrast to mask artifacts and get by
with lower bitrates.
<-100-100>
initial brightness
<-100-100>
initial contrast
eq2[=gamma:contrast:brightness:saturation:rg:gg:bg:weight]
Alternative software equalizer that uses lookup tables (very
slow), allowing gamma correction in addition to simple
brightness and contrast adjustment. Note that it uses the same
MMX optimized code as -vf eq if all gamma values are 1.0. The
parameters are given as floating point values.
<0.1-10>
initial gamma value (default: 1.0)
<-2-2>
initial contrast, where negative values result in a
negative image (default: 1.0)
<-1-1>
initial brightness (default: 0.0)
<0-3>
initial saturation (default: 1.0)
<0.1-10>
gamma value for the red component (default: 1.0)
<0.1-10>
gamma value for the green component (default: 1.0)
<0.1-10>
gamma value for the blue component (default: 1.0)
<0-1>
The weight parameter can be used to reduce the effect of
a high gamma value on bright image areas, e.g. keep them
from getting overamplified and just plain white. A
value of 0.0 turns the gamma correction all the way down
while 1.0 leaves it at its full strength (default: 1.0).
hue[=hue:saturation]
Software equalizer with interactive controls just like the
hardware equalizer, for cards/drivers that do not support hue
and saturation controls in hardware.
<-180-180>
initial hue (default: 0.0)
<-100-100>
initial saturation, where negative values result in a
negative chroma (default: 1.0)
halfpack[=f]
Convert planar YUV 4:2:0 to half-height packed 4:2:2,
downsampling luma but keeping all chroma samples. Useful for
output to low-resolution display devices when hardware
downscaling is poor quality or is not available. Can also be
used as a primitive luma-only deinterlacer with very low CPU
usage.
<f>
By default, halfpack averages pairs of lines when
downsampling. Any value different from 0 or 1 gives the
default (averaging) behavior.
0: Only use even lines when downsampling.
1: Only use odd lines when downsampling.
ilpack[=mode]
When interlaced video is stored in YUV 4:2:0 formats, chroma
interlacing does not line up properly due to vertical
downsampling of the chroma channels. This filter packs the
planar 4:2:0 data into YUY2 (4:2:2) format with the chroma lines
in their proper locations, so that in any given scanline, the
luma and chroma data both come from the same field.
<mode>
Select the sampling mode.
0: nearest-neighbor sampling, fast but incorrect
1: linear interpolation (default)
harddup
Only useful with MEncoder. If harddup is used when encoding, it
will force duplicate frames to be encoded in the output. This
uses slightly more space, but is necessary for output to MPEG
files or if you plan to demux and remux the video stream after
encoding. Should be placed at or near the end of the filter
chain unless you have a good reason to do otherwise.
softskip
Only useful with MEncoder. Softskip moves the frame skipping
(dropping) step of encoding from before the filter chain to some
point during the filter chain. This allows filters which need
to see all frames (inverse telecine, temporal denoising, etc.)
to function properly. Should be placed after the filters which
need to see all frames and before any subsequent filters that
are CPU-intensive.
decimate[=max:hi:lo:frac]
Drops frames that do not differ greatly from the previous frame
in order to reduce framerate. The main use of this filter is
for very-low-bitrate encoding (e.g. streaming over dialup
modem), but it could in theory be used for fixing movies that
were inverse-telecined incorrectly.
<max>
Sets the maximum number of consecutive frames which can
be dropped (if positive), or the minimum interval
between dropped frames (if negative).
<hi>,<lo>,<frac>
A frame is a candidate for dropping if no 8x8 region
differs by more than a threshold of <hi>, and if not
more than <frac> portion (1 meaning the whole image)
differs by more than a threshold of <lo>. Values of
<hi> and <lo> are for 8x8 pixel blocks and represent
actual pixel value differences, so a threshold of 64
corresponds to 1 unit of difference for each pixel, or
the same spread out differently over the block.
dint[=sense:level]
The drop-deinterlace (dint) filter detects and drops the first
from a set of interlaced video frames.
<0.0-1.0>
relative difference between neighboring pixels (default:
0.1)
<0.0-1.0>
What part of the image has to be detected as interlaced
to drop the frame (default: 0.15).
lavcdeint (OBSOLETE)
FFmpeg deinterlacing filter, same as -vf pp=fd
kerndeint[=thresh[:map[:order[:sharp[:twoway]]]]]
Donald Graft’s adaptive kernel deinterlacer. Deinterlaces parts
of a video if a configurable threshold is exceeded.
<0-255>
threshold (default: 10)
<map>
0: Ignore pixels exceeding the threshold (default).
1: Paint pixels exceeding the threshold white.
<order>
0: Leave fields alone (default).
1: Swap fields.
<sharp>
0: Disable additional sharpening (default).
1: Enable additional sharpening.
<twoway>
0: Disable twoway sharpening (default).
1: Enable twoway sharpening.
unsharp[=l|cWxH:amount[:l|cWxH:amount]]
unsharp mask / gaussian blur
l
Apply effect on luma component.
c
Apply effect on chroma components.
<width>x<height>
width and height of the matrix, odd sized in both
directions (min = 3x3, max = 13x11 or 11x13, usually
something between 3x3 and 7x7)
amount
Relative amount of sharpness/blur to add to the image (a
sane range should be -1.5-1.5).
<0: blur
>0: sharpen
swapuv
Swap U & V plane.
il[=d|i][s][:[d|i][s]]
(De)interleaves lines. The goal of this filter is to add the
ability to process interlaced images pre-field without
deinterlacing them. You can filter your interlaced DVD and play
it on a TV without breaking the interlacing. While
deinterlacing (with the postprocessing filter) removes
interlacing permanently (by smoothing, averaging, etc)
deinterleaving splits the frame into 2 fields (so called half
pictures), so you can process (filter) them independently and
then re-interleave them.
d deinterleave (placing one above the other)
i interleave
s swap fields (exchange even & odd lines)
fil[=i|d]
(De)interleaves lines. This filter is very similar to the il
filter but much faster, the main disadvantage is that it does
not always work. Especially if combined with other filters it
may produce randomly messed up images, so be happy if it works
but do not complain if it does not for your combination of
filters.
d Deinterleave fields, placing them side by side.
i Interleave fields again (reversing the effect of fil=d).
field[=n]
Extracts a single field from an interlaced image using stride
arithmetic to avoid wasting CPU time. The optional argument n
specifies whether to extract the even or the odd field
(depending on whether n is even or odd).
detc[=var1=value1:var2=value2:...]
Attempts to reverse the ’telecine’ process to recover a clean,
non-interlaced stream at film framerate. This was the first and
most primitive inverse telecine filter to be added to MPlayer/
MEncoder. It works by latching onto the telecine 3:2 pattern
and following it as long as possible. This makes it suitable
for perfectly-telecined material, even in the presence of a fair
degree of noise, but it will fail in the presence of complex
post-telecine edits. Development on this filter is no longer
taking place, as ivtc, pullup, and filmdint are better for most
applications. The following arguments (see syntax above) may be
used to control detc’s behavior:
<dr>
Set the frame dropping mode.
0: Do not drop frames to maintain fixed output
framerate (default).
1: Always drop a frame when there have been no drops
or telecine merges in the past 5 frames.
2: Always maintain exact 5:4 input to output frame
ratio.
NOTE: Use mode 1 or 2 with MEncoder.
<am>
Analysis mode.
0: Fixed pattern with initial frame number specified
by <fr>.
1: aggressive search for telecine pattern (default)
<fr>
Set initial frame number in sequence. 0-2 are the three
clean progressive frames; 3 and 4 are the two interlaced
frames. The default, -1, means ’not in telecine
sequence’. The number specified here is the type for
the imaginary previous frame before the movie starts.
<t0>, <t1>, <t2>, <t3>
Threshold values to be used in certain modes.
ivtc[=1]
Experimental ’stateless’ inverse telecine filter. Rather than
trying to lock on to a pattern like the detc filter does, ivtc
makes its decisions independently for each frame. This will
give much better results for material that has undergone heavy
editing after telecine was applied, but as a result it is not as
forgiving of noisy input, for example TV capture. The optional
parameter (ivtc=1) corresponds to the dr=1 option for the detc
filter, and should be used with MEncoder but not with MPlayer.
As with detc, you must specify the correct output framerate
(-ofps 24000/1001) when using MEncoder. Further development on
ivtc has stopped, as the pullup and filmdint filters appear to
be much more accurate.
pullup[=jl:jr:jt:jb:sb:mp]
Third-generation pulldown reversal (inverse telecine) filter,
capable of handling mixed hard-telecine, 24000/1001 fps
progressive, and 30000/1001 fps progressive content. The pullup
filter is designed to be much more robust than detc or ivtc, by
taking advantage of future context in making its decisions.
Like ivtc, pullup is stateless in the sense that it does not
lock onto a pattern to follow, but it instead looks forward to
the following fields in order to identify matches and rebuild
progressive frames. It is still under development, but believed
to be quite accurate. The jl, jr, jt, and jb options set the
amount of "junk" to ignore at the left, right, top, and bottom
of the image, respectively. Left/right are in units of 8
pixels, while top/bottom are in units of 2 lines. The default
is 8 pixels on each side. Setting the sb (strict breaks) option
to 1 will reduce the chances of pullup generating an occasional
mismatched frame, but it may also cause an excessive number of
frames to be dropped during high motion sequences. Conversely,
setting it to -1 will make pullup match fields more easily.
This may help processing of video where there is slight blurring
between the fields, but may also cause there to be interlaced
frames in the output. The mp (metric plane) option may be set
to 1 or 2 to use a chroma plane instead of the luma plane for
doing pullup’s computations. This may improve accuracy on very
clean source material, but more likely will decrease accuracy,
especially if there is chroma noise (rainbow effect) or any
grayscale video. The main purpose of setting mp to a chroma
plane is to reduce CPU load and make pullup usable in realtime
on slow machines.
NOTE: Always follow pullup with the softskip filter when
encoding to ensure that pullup is able to see each frame.
Failure to do so will lead to incorrect output and will usually
crash, due to design limitations in the codec/filter layer.
filmdint[=options]
Inverse telecine filter, similar to the pullup filter above. It
is designed to handle any pulldown pattern, including mixed soft
and hard telecine and limited support for movies that are slowed
down or sped up from their original framerate for TV. Only the
luma plane is used to find the frame breaks. If a field has no
match, it is deinterlaced with simple linear approximation. If
the source is MPEG-2, this must be the first filter to allow
access to the field-flags set by the MPEG-2 decoder. Depending
on the source MPEG, you may be fine ignoring this advice, as
long as you do not see lots of "Bottom-first field" warnings.
With no options it does normal inverse telecine, and should be
used together with mencoder -fps 30000/1001 -ofps 24000/1001.
When this filter is used with mplayer, it will result in an
uneven framerate during playback, but it is still generally
better than using pp=lb or no deinterlacing at all. Multiple
options can be specified separated by /.
crop=<w>:<h>:<x>:<y>
Just like the crop filter, but faster, and works on
mixed hard and soft telecined content as well as when y
is not a multiple of 4. If x or y would require
cropping fractional pixels from the chroma planes, the
crop area is extended. This usually means that x and y
must be even.
io=<ifps>:<ofps>
For each ifps input frames the filter will output ofps
frames. The ratio of ifps/ofps should match the
-fps/-ofps ratio. This could be used to filter movies
that are broadcast on TV at a frame rate different from
their original framerate.
luma_only=<n>
If n is nonzero, the chroma plane is copied unchanged.
This is useful for YV12 sampled TV, which discards one
of the chroma fields.
mmx2=<n>
On x86, if n=1, use MMX2 optimized functions, if n=2,
use 3DNow! optimized functions, otherwise, use plain C.
If this option is not specified, MMX2 and 3DNow! are
auto-detected, use this option to override auto-
detection.
fast=<n>
The larger n will speed up the filter at the expense of
accuracy. The default value is n=3. If n is odd, a
frame immediately following a frame marked with the
REPEAT_FIRST_FIELD MPEG flag is assumed to be
progressive, thus filter will not spend any time on
soft-telecined MPEG-2 content. This is the only effect
of this flag if MMX2 or 3DNow! is available. Without
MMX2 and 3DNow, if n=0 or 1, the same calculations will
be used as with n=2 or 3. If n=2 or 3, the number of
luma levels used to find the frame breaks is reduced
from 256 to 128, which results in a faster filter
without losing much accuracy. If n=4 or 5, a faster,
but much less accurate metric will be used to find the
frame breaks, which is more likely to misdetect high
vertical detail as interlaced content.
verbose=<n>
If n is nonzero, print the detailed metrics for each
frame. Useful for debugging.
dint_thres=<n>
Deinterlace threshold. Used during de-interlacing of
unmatched frames. Larger value means less
deinterlacing, use n=256 to completely turn off
deinterlacing. Default is n=8.
comb_thres=<n>
Threshold for comparing a top and bottom fields.
Defaults to 128.
diff_thres=<n>
Threshold to detect temporal change of a field. Default
is 128.
sad_thres=<n>
Sum of Absolute Difference threshold, default is 64.
softpulldown
This filter works only correct with MEncoder and acts on the
MPEG-2 flags used for soft 3:2 pulldown (soft telecine). If you
want to use the ivtc or detc filter on movies that are partly
soft telecined, inserting this filter before them should make
them more reliable.
divtc[=options]
Inverse telecine for deinterlaced video. If 3:2-pulldown
telecined video has lost one of the fields or is deinterlaced
using a method that keeps one field and interpolates the other,
the result is a juddering video that has every fourth frame
duplicated. This filter is intended to find and drop those
duplicates and restore the original film framerate. When using
this filter, you must specify -ofps that is 4/5 of the fps of
the input file and place the softskip later in the filter chain
to make sure that divtc sees all the frames. Two different
modes are available: One pass mode is the default and is
straightforward to use, but has the disadvantage that any
changes in the telecine phase (lost frames or bad edits) cause
momentary judder until the filter can resync again. Two pass
mode avoids this by analyzing the whole video beforehand so it
will have forward knowledge about the phase changes and can
resync at the exact spot. These passes do not correspond to
pass one and two of the encoding process. You must run an extra
pass using divtc pass one before the actual encoding throwing
the resulting video away. Use -nosound -ovc raw -o /dev/null to
avoid wasting CPU power for this pass. You may add something
like crop=2:2:0:0 after divtc to speed things up even more.
Then use divtc pass two for the actual encoding. If you use
multiple encoder passes, use divtc pass two for all of them.
The options are:
pass=1|2
Use two pass mode.
file=<filename>
Set the two pass log filename (default:
"framediff.log").
threshold=<value>
Set the minimum strength the telecine pattern must have
for the filter to believe in it (default: 0.5). This is
used to avoid recognizing false pattern from the parts
of the video that are very dark or very still.
window=<numframes>
Set the number of past frames to look at when searching
for pattern (default: 30). Longer window improves the
reliability of the pattern search, but shorter window
improves the reaction time to the changes in the
telecine phase. This only affects the one pass mode.
The two pass mode currently uses fixed window that
extends to both future and past.
phase=0|1|2|3|4
Sets the initial telecine phase for one pass mode
(default: 0). The two pass mode can see the future, so
it is able to use the correct phase from the beginning,
but one pass mode can only guess. It catches the
correct phase when it finds it, but this option can be
used to fix the possible juddering at the beginning.
The first pass of the two pass mode also uses this, so
if you save the output from the first pass, you get
constant phase result.
deghost=<value>
Set the deghosting threshold (0-255 for one pass mode,
-255-255 for two pass mode, default 0). If nonzero,
deghosting mode is used. This is for video that has
been deinterlaced by blending the fields together
instead of dropping one of the fields. Deghosting
amplifies any compression artifacts in the blended
frames, so the parameter value is used as a threshold to
exclude those pixels from deghosting that differ from
the previous frame less than specified value. If two
pass mode is used, then negative value can be used to
make the filter analyze the whole video in the beginning
of pass-2 to determine whether it needs deghosting or
not and then select either zero or the absolute value of
the parameter. Specify this option for pass-2, it makes
no difference on pass-1.
phase[=t|b|p|a|u|T|B|A|U][:v]
Delay interlaced video by one field time so that the field order
changes. The intended use is to fix PAL movies that have been
captured with the opposite field order to the film-to-video
transfer. The options are:
t Capture field order top-first, transfer bottom-first.
Filter will delay the bottom field.
b Capture bottom-first, transfer top-first. Filter will
delay the top field.
p Capture and transfer with the same field order. This
mode only exists for the documentation of the other
options to refer to, but if you actually select it, the
filter will faithfully do nothing ;-)
a Capture field order determined automatically by field
flags, transfer opposite. Filter selects among t and b
modes on a frame by frame basis using field flags. If
no field information is available, then this works just
like u.
u Capture unknown or varying, transfer opposite. Filter
selects among t and b on a frame by frame basis by
analyzing the images and selecting the alternative that
produces best match between the fields.
T Capture top-first, transfer unknown or varying. Filter
selects among t and p using image analysis.
B Capture bottom-first, transfer unknown or varying.
Filter selects among b and p using image analysis.
A Capture determined by field flags, transfer unknown or
varying. Filter selects among t, b and p using field
flags and image analysis. If no field information is
available, then this works just like U. This is the
default mode.
U Both capture and transfer unknown or varying. Filter
selects among t, b and p using image analysis only.
v Verbose operation. Prints the selected mode for each
frame and the average squared difference between fields
for t, b, and p alternatives.
telecine[=start]
Apply 3:2 ’telecine’ process to increase framerate by 20%. This
most likely will not work correctly with MPlayer, but it can be
used with ’mencoder -fps 30000/1001 -ofps 30000/1001 -vf
telecine’. Both fps options are essential! (A/V sync will
break if they are wrong.) The optional start parameter tells
the filter where in the telecine pattern to start (0-3).
tinterlace[=mode]
Temporal field interlacing - merge pairs of frames into an
interlaced frame, halving the framerate. Even frames are moved
into the upper field, odd frames to the lower field. This can
be used to fully reverse the effect of the tfields filter (in
mode 0). Available modes are:
0 Move odd frames into the upper field, even into the
lower field, generating a full-height frame at half
framerate.
1 Only output odd frames, even frames are dropped; height
unchanged.
2 Only output even frames, odd frames are dropped; height
unchanged.
3 Expand each frame to full height, but pad alternate
lines with black; framerate unchanged.
tfields[=mode[:field_dominance]]
Temporal field separation - split fields into frames, doubling
the output framerate. Like the telecine filter, tfields will
only work properly with MEncoder, and only if both -fps and
-ofps are set to the desired (double) framerate! Available
modes are:
0 Leave fields unchanged. (This will jump/flicker.)
1 Interpolate missing lines. (The algorithm used might not
be so good.)
2 Translate fields by 1/4 pixel with linear interpolation
(no jump).
4 Translate fields by 1/4 pixel with 4tap filter (higher
quality). (default)
Available field dominances are:
-1 auto (default) Only works if the decoder exports the
appropriate information and no other filters which
discard that information come before tfields in the
filter chain, otherwise it falls back to 0 (top field
first).
0 top-first
1 bottom-first
boxblur=radius:power[:radius:power]
box blur
<radius>
blur filter strength
<power>
number of filter applications
sab=radius:pf:colorDiff[:radius:pf:colorDiff]
shape adaptive blur
<radius>
blur filter strength (~0.1-4.0) (slower if larger)
<pf>
prefilter strength (~0.1-2.0)
<colorDiff>
maximum difference between pixels to still be considered
(~0.1-100.0)
smartblur=radius:strength:threshold[:radius:strength:threshold]
smart blur
<radius>
blur filter strength (~0.1-5.0) (slower if larger)
<strength>
blur (0.0-1.0) or sharpen (-1.0-0.0)
<threshold>
filter all (0), filter flat areas (0-30) or filter edges
(-30-0)
perspective=x0:y0:x1:y1:x2:y2:x3:y3:t
Correct the perspective of movies not filmed perpendicular to
the screen.
<x0>,<y0>,...
coordinates of the top left, top right, bottom left,
bottom right corners
<t>
linear (0) or cubic resampling (1)
2xsai
Scale and smooth the image with the 2x scale and interpolate
algorithm.
1bpp
1bpp bitmap to YUV/BGR 8/15/16/32 conversion
down3dright[=lines]
Reposition and resize stereoscopic images. Extracts both stereo
fields and places them side by side, resizing them to maintain
the original movie aspect.
<lines>
number of lines to select from the middle of the image
(default: 12)
bmovl=hidden:opaque:fifo
The bitmap overlay filter reads bitmaps from a FIFO and displays
them on top of the movie, allowing some transformations on the
image. Also see TOOLS/bmovl-test.c for a small bmovl test
program.
<hidden>
Set the default value of the ’hidden’ flag (0=visible,
1=hidden).
<opaque>
Set the default value of the ’opaque’ flag
(0=transparent, 1=opaque).
<fifo>
path/filename for the FIFO (named pipe connecting
’mplayer -vf bmovl’ to the controlling application)
FIFO commands are:
RGBA32 width height xpos ypos alpha clear
followed by width*height*4 Bytes of raw RGBA32 data.
ABGR32 width height xpos ypos alpha clear
followed by width*height*4 Bytes of raw ABGR32 data.
RGB24 width height xpos ypos alpha clear
followed by width*height*3 Bytes of raw RGB24 data.
BGR24 width height xpos ypos alpha clear
followed by width*height*3 Bytes of raw BGR24 data.
ALPHA width height xpos ypos alpha
Change alpha transparency of the specified area.
CLEAR width height xpos ypos
Clear area.
OPAQUE
Disable all alpha transparency. Send "ALPHA 0 0 0 0 0"
to enable it again.
HIDE
Hide bitmap.
SHOW
Show bitmap.
Arguments are:
<width>, <height>
image/area size
<xpos>, <ypos>
Start blitting at position x/y.
<alpha>
Set alpha difference. If you set this to -255 you can
then send a sequence of ALPHA-commands to set the area
to -225, -200, -175 etc for a nice fade-in-effect! ;)
0: same as original
255: Make everything opaque.
-255: Make everything transparent.
<clear>
Clear the framebuffer before blitting.
0: The image will just be blitted on top of the old
one, so you do not need to send 1.8MB of RGBA32 data
every time a small part of the screen is updated.
1: clear
framestep=I|[i]step
Renders only every nth frame or every intra frame (keyframe).
If you call the filter with I (uppercase) as the parameter, then
only keyframes are rendered. For DVDs it generally means one in
every 15/12 frames (IBBPBBPBBPBBPBB), for AVI it means every
scene change or every keyint value (see -lavcopts keyint= value
if you use MEncoder to encode the video).
When a keyframe is found, an ’I!’ string followed by a newline
character is printed, leaving the current line of MPlayer/
MEncoder output on the screen, because it contains the time (in
seconds) and frame number of the keyframe (You can use this
information to split the AVI.).
If you call the filter with a numeric parameter ’step’ then only
one in every ’step’ frames is rendered.
If you put an ’i’ (lowercase) before the number then an ’I!’ is
printed (like the I parameter).
If you give only the i then nothing is done to the frames, only
I! is printed.
tile=xtiles:ytiles:output:start:delta
Tile a series of images into a single, bigger image. If you
omit a parameter or use a value less than 0, then the default
value is used. You can also stop when you are satisfied (...
-vf tile=10:5 ...). It is probably a good idea to put the scale
filter before the tile :-)
The parameters are:
<xtiles>
number of tiles on the x axis (default: 5)
<ytiles>
number of tiles on the y axis (default: 5)
<output>
Render the tile when ’output’ number of frames are
reached, where ’output’ should be a number less than
xtile * ytile. Missing tiles are left blank. You
could, for example, write an 8 * 7 tile every 50 frames
to have one image every 2 seconds @ 25 fps.
<start>
outer border thickness in pixels (default: 2)
<delta>
inner border thickness in pixels (default: 4)
delogo[=x:y:w:h:t]
Suppresses a TV station logo by a simple interpolation of the
surrounding pixels. Just set a rectangle covering the logo and
watch it disappear (and sometimes something even uglier appear -
your mileage may vary).
<x>,<y>
top left corner of the logo
<w>,<h>
width and height of the cleared rectangle
<t> Thickness of the fuzzy edge of the rectangle (added to w
and h). When set to -1, a green rectangle is drawn on
the screen to simplify finding the right x,y,w,h
parameters.
remove-logo=/path/to/logo_bitmap_file_name.pgm
Suppresses a TV station logo, using a PGM or PPM image file to
determine which pixels comprise the logo. The width and height
of the image file must match those of the video stream being
processed. Uses the filter image and a circular blur algorithm
to remove the logo.
/path/to/logo_bitmap_file_name.pgm
[path] + filename of the filter image.
zrmjpeg[=options]
Software YV12 to MJPEG encoder for use with the zr2 video output
device.
maxheight=<h>|maxwidth=<w>
These options set the maximum width and height the zr
card can handle (the MPlayer filter layer currently
cannot query those).
{dc10+,dc10,buz,lml33}-{PAL|NTSC}
Use these options to set maxwidth and maxheight
automatically to the values known for card/mode combo.
For example, valid options are: dc10-PAL and buz-NTSC
(default: dc10+PAL)
color|bw
Select color or black and white encoding. Black and
white encoding is faster. Color is the default.
hdec={1,2,4}
Horizontal decimation 1, 2 or 4.
vdec={1,2,4}
Vertical decimation 1, 2 or 4.
quality=1-20
Set JPEG compression quality [BEST] 1 - 20 [VERY BAD].
fd|nofd
By default, decimation is only performed if the Zoran
hardware can upscale the resulting MJPEG images to the
original size. The option fd instructs the filter to
always perform the requested decimation (ugly).
screenshot
Allows acquiring screenshots of the movie using the screenshot
command (bound to the ’s’ key by default). Files named
’shotNNNN.png’ will be saved in the working directory, using the
first available number - no files will be overwritten. The
filter has no overhead when not used and accepts an arbitrary
colorspace, so it is safe to add it to the configuration file.
GENERAL ENCODING OPTIONS (MENCODER ONLY)
-audio-delay <0.0-...>
Sets the audio delay field in the header. Default is 0.0,
negative values do not work. This does not delay the audio
while encoding, but the player will see the default audio delay,
sparing you the use of the -delay option.
-audio-density <1-50>
Number of audio chunks per second (default is 2 for 0.5s long
audio chunks).
NOTE: CBR only, VBR ignores this as it puts each packet in a new
chunk.
-audio-preload <0.0-2.0>
Sets up the audio buffering time interval (default: 0.5s).
-endpos <[[hh:]mm:]ss[.ms]|size[b|kb|mb]> (also see -ss and -sb)
Stop encoding at the given time or byte position.
NOTE: Byte position will not be accurate, as it can only stop at
a frame boundary.
EXAMPLE:
-endpos 56
Encode only 56 seconds.
-endpos 01:10:00
Encode only 1 hour 10 minutes.
-endpos 100mb
Encode only 100 MB.
-fafmttag <format>
Can be used to override the audio format tag of the output file.
EXAMPLE:
-fafmttag 0x55
Will have the output file contain 0x55 (mp3) as audio
format tag.
-ffourcc <fourcc>
Can be used to override the video fourcc of the output file.
EXAMPLE:
-ffourcc div3
Will have the output file contain ’div3’ as video
fourcc.
-force-avi-aspect <0.2-3.0>
Override the aspect stored in the AVI OpenDML vprp header. This
can be used to change the aspect ratio with ’-ovc copy’.
-frameno-file <filename> (DEPRECATED)
Specify the name of the audio file with framenumber mappings
created in the first (audio only) pass of a special three pass
encoding mode.
NOTE: Using this mode will most likely give you A-V desync. Do
not use it. It is kept for backwards compatibility only and
will possibly be removed in a future version.
-hr-edl-seek (EDL only)
Use a more precise, but much slower method for skipping areas.
Areas marked for skipping are not seeked over, instead all
frames are decoded, but only the necessary frames are encoded.
This allows starting at non-keyframe boundaries.
NOTE: Not guaranteed to work right with ’-ovc copy’.
-info <option1:option2:...> (AVI only)
Specify the info header of the resulting AVI file.
Available options are:
help
Show this description.
name=<value>
title of the work
artist=<value>
artist or author of the work
genre=<value>
original work category
subject=<value>
contents of the work
copyright=<value>
copyright information
srcform=<value>
original format of the digitized material
comment=<value>
general comments about the work
-noautoexpand
Do not automatically insert the expand filter into the MEncoder
filter chain. Useful to control at which point of the filter
chain subtitles are rendered when hardcoding subtitles onto a
movie.
-noencodedups
Do not attempt to encode duplicate frames in duplicate; always
output zero-byte frames to indicate duplicates. Zero-byte
frames will be written anyway unless a filter or encoder capable
of doing duplicate encoding is loaded. Currently the only such
filter is harddup.
-noodml (-of avi only)
Do not write OpenDML index for AVI files >1GB.
-noskip
Do not skip frames.
-o <filename>
Outputs to the given filename.
If you want a default output filename, you can put this option
in the MEncoder config file.
-oac <codec name>
Encode with the given audio codec (no default set).
NOTE: Use -oac help to get a list of available audio codecs.
EXAMPLE:
-oac copy
no encoding, just streamcopy
-oac pcm
Encode to uncompressed PCM.
-oac mp3lame
Encode to MP3 (using LAME).
-oac lavc
Encode with a libavcodec codec.
-of <format> (BETA CODE!)
Encode to the specified container format (default: AVI).
NOTE: Use -of help to get a list of available container formats.
EXAMPLE:
-of avi
Encode to AVI.
-of mpeg
Encode to MPEG (also see -mpegopts).
-of lavf
Encode with libavformat muxers (also see -lavfopts).
-of rawvideo
raw video stream (no muxing - one video stream only)
-of rawaudio
raw audio stream (no muxing - one audio stream only)
-ofps <fps>
Specify a frames per second (fps) value for the output file,
which can be different from that of the source material. Must
be set for variable fps (ASF, some MOV) and progressive
(30000/1001 fps telecined MPEG) files.
-ovc <codec name>
Encode with the given video codec (no default set).
NOTE: Use -ovc help to get a list of available video codecs.
EXAMPLE:
-ovc copy
no encoding, just streamcopy
-ovc divx4
Encode to DivX4/DivX5.
-ovc raw
Encode to an arbitrary uncompressed format (use ’-vf
format’ to select).
-ovc lavc
Encode with a libavcodec codec.
-passlogfile <filename>
Dump first pass information to <filename> instead of the default
divx2pass.log in two pass encoding mode.
-skiplimit <value>
Specify the maximum number of frames that may be skipped after
encoding one frame (-noskiplimit for unlimited).
-vobsubout <basename>
Specify the basename for the output .idx and .sub files. This
turns off subtitle rendering in the encoded movie and diverts it
to VOBsub subtitle files.
-vobsuboutid <langid>
Specify the language two letter code for the subtitles. This
overrides what is read from the DVD or the .ifo file.
-vobsuboutindex <index>
Specify the index of the subtitles in the output files (default:
0).
CODEC SPECIFIC ENCODING OPTIONS (MENCODER ONLY)
You can specify codec specific encoding parameters using the following
syntax:
-<codec>opts <option1[=value],option2,...>
Where <codec> may be: lavc, xvidenc, divx4, lame, toolame, twolame,
nuv, vfw, faac, x264enc, mpeg, lavf.
divx4 (-divx4opts)
DivX4 is obsolete and only supported for completeness. For details
about DivX4 options, read the source, most options are not described
here.
help
get help
br=<value>
Specify bitrate.
4-16000
(in kbit)
16001-24000000
(in bit)
key=<value>
maximum keyframe interval (in frames)
deinterlace
Enable deinterlacing (avoid it, DivX4 is buggy).
q=<1-5>
quality (1-fastest, 5-best)
min_quant=<1-31>
minimum quantizer
max_quant=<1-31>
maximum quantizer
rc_period=<value>
rate control period
rc_reaction_period=<value>
rate control reaction period
rc_reaction_ratio=<value>
rate control reaction ratio
crispness=<0-100>
Specify crispness/smoothness.
pass=<1-2>
With this you can encode two pass DivX4 files. First encode
with pass=1, then do another encode with the same parameters and
pass=2.
vbrpass=<0-2>
Override the pass argument and use the XviD VBR library instead
of DivX4 VBR. Available options are:
0 one pass encoding (as in not putting pass on the command
line)
1 Analysis (first) pass of two pass encoding. The
resulting AVI file can be directed to /dev/null.
2 Final (second) pass of two pass encoding.
lame (-lameopts)
help
get help
vbr=<0-4>
variable bitrate method
0 cbr
1 mt
2 rh (default)
3 abr
4 mtrh
abr
average bitrate
cbr
constant bitrate Also forces CBR mode encoding on subsequent ABR
presets modes.
br=<0-1024>
bitrate in kbps (CBR and ABR only)
q=<0-9>
quality (0 - highest, 9 - lowest) (VBR only)
aq=<0-9>
algorithmic quality (0 - best/slowest, 9 - worst/fastest)
ratio=<1-100>
compression ratio
vol=<0-10>
audio input gain
mode=<0-3>
(default: auto)
0 stereo
1 joint-stereo
2 dualchannel
3 mono
padding=<0-2>
0 none
1 all
2 adjust
fast
Switch on faster encoding on subsequent VBR presets modes. This
results in slightly lower quality and higher bitrates.
highpassfreq=<freq>
Set a highpass filtering frequency in Hz. Frequencies below the
specified one will be cut off. A value of -1 will disable
filtering, a value of 0 will let LAME choose values
automatically.
lowpassfreq=<freq>
Set a lowpass filtering frequency in Hz. Frequencies above the
specified one will be cut off. A value of -1 will disable
filtering, a value of 0 will let LAME choose values
automatically.
preset=<value>
preset values
help
Print additional options and information about presets
settings.
medium
VBR encoding, good quality, 150-180 kbps bitrate range
standard
VBR encoding, high quality, 170-210 kbps bitrate range
extreme
VBR encoding, very high quality, 200-240 kbps bitrate
range
insane
CBR encoding, highest preset quality, 320 kbps bitrate
<8-320>
ABR encoding at average given kbps bitrate
EXAMPLES:
fast:preset=standard
suitable for most people and most music types and
already quite high quality
cbr:preset=192
Encode with ABR presets at a 192 kbps forced constant
bitrate.
preset=172
Encode with ABR presets at a 172 kbps average bitrate.
preset=extreme
for people with extremely good hearing and similar
equipment
toolame and twolame (-toolameopts and -twolameopts respectively)
br=<32-384>
In CBR mode this parameter indicates the bitrate in kbps, when
in VBR mode it is the minimum bitrate allowed per frame. VBR
mode will not work with a value below 112.
vbr=<-50-50> (VBR only)
variability range; if negative the encoder shifts the average
bitrate towards the lower limit, if positive towards the higher.
When set to 0 CBR is used (default).
maxvbr=<32-384> (VBR only)
maximum bitrate allowed per frame, in kbps
mode=<stereo | jstereo | mono | dual>
(default: mono for 1-channel audio, stereo otherwise)
psy=<-1-4>
psychoacoustic model (default: 2)
errprot=<0 | 1>
Include error protection.
debug=<0-10>
debug level
faac (-faacopts)
br=<bitrate>
average bitrate in kbps (mutually exclusive with quality)
quality=<1-1000>
quality mode, the higher the better (mutually exclusive with br)
object=<0-3>
object type complexity
0 MAIN (default)
1 LOW
2 SSR
3 LTP (extremely slow)
mpeg=<2|4>
MPEG version (default: 4)
tns
Enables temporal noise shaping.
cutoff=<0-sampling_rate/2>
cutoff frequency (default: sampling_rate/2)
raw
Stores the bitstream as raw payload with extradata in the
container header (default: 0, corresponds to ADTS). Do not set
this flag if not explicitly required or you will not be able to
remux the audio stream later on.
lavc (-lavcopts)
Many libavcodec (lavc for short) options are tersely documented. Read
the source for full details.
EXAMPLE:
vcodec=msmpeg4:vbitrate=1800:vhq:keyint=250
acodec=<value>
audio codec (default: mp2)
mp2
MPEG Layer 2
mp3
MPEG Layer 3
ac3
AC3
adpcm_ima_wav
IMA Adaptive PCM (4bits per sample, 4:1 compression)
sonic
Experimental lossy/lossless codec
abitrate=<value>
audio bitrate in kbps (default: 224)
atag=<value>
Use the specified Windows audio format tag (e.g. atag=0x55).
bit_exact
Use only bit exact algorithms (except (I)DCT). Additionally
bit_exact disables several optimizations and thus should only be
used for regression tests, which need binary identical files
even if the encoder version changes. This also suppresses the
user_data header in MPEG-4 streams. Do not use this option
unless you know exactly what you are doing.
threads=<1-8>
Maximum number of threads to use (default: 1). May have a
slight negative effect on motion estimation.
vcodec=<value>
Employ the specified codec (default: mpeg4).
mjpeg
Motion JPEG
ljpeg
Lossless JPEG
h261
H.261
h263
H.263
h263p
H.263+
mpeg4
MPEG-4 (DivX 4/5)
msmpeg4
DivX 3
msmpeg4v2
MS MPEG4v2
wmv1
Windows Media Video, version 1 (AKA WMV7)
wmv2
Windows Media Video, version 2 (AKA WMV8)
rv10
an old RealVideo codec
mpeg1video
MPEG-1 video
mpeg2video
MPEG-2 video
huffyuv
HuffYUV
ffvhuff
nonstandard 20% smaller HuffYUV using YV12
asv1
ASUS Video v1
asv2
ASUS Video v2
ffv1 (also see: vstrict)
FFmpeg’s lossless video codec
flv
Sorenson H.263 used in Flash Video
dvvideo
Sony Digital Video
svq1
Apple Sorenson Video 1
snow (also see: vstrict)
FFmpeg’s experimental wavelet-based codec
vqmin=<1-31>
minimum quantizer (pass 1/2)
1 Not recommended (much larger file, little quality
difference and weird side effects: msmpeg4, h263 will be
very low quality, ratecontrol will be confused resulting
in lower quality and some decoders will not be able to
decode it).
2 Recommended for normal mpeg4/mpeg1video encoding
(default).
3 Recommended for h263(p)/msmpeg4. The reason for
preferring 3 over 2 is that 2 could lead to overflows.
(This will be fixed for h263(p) by changing the
quantizer per MB in the future, msmpeg4 cannot be fixed
as it does not support that.)
lmin=<0.01-255.0>
Minimum Lagrange multiplier for ratecontrol, you probably want
it to be equal to or lower than vqmin (default: 2.0).
lmax=<0.01-255.0>
maximum Lagrange multiplier for ratecontrol (default: 31.0)
vqscale=<1-31>
Constant quantizer / constant quality encoding (selects fixed
quantizer mode). A lower value means better quality but larger
files (default: 0 (disabled)). 1 is not recommended (see vqmin
for details).
vqmax=<1-31>
Maximum quantizer (pass 1/2), 10-31 should be a sane range
(default: 31).
mbqmin=<1-31>
obsolete, use vqmin
mbqmax=<1-31>
obsolete, use vqmax
vqdiff=<1-31>
maximum quantizer difference between consecutive I- or P-frames
(pass 1/2) (default: 3)
vmax_b_frames=<0-4>
maximum number of B-frames between non-B-frames:
0 no B-frames (default)
0-2 sane range for MPEG-4
vme=<0-5>
motion estimation method. Available methods are:
0 none (very low quality)
1 full (slow, currently unmaintained and disabled)
2 log (low quality, currently unmaintained and disabled)
3 phods (low quality, currently unmaintained and disabled)
4 EPZS: size=1 diamond, size can be adjusted with the *dia
options (default)
5 X1 (experimental, currently aliased to EPZS)
8 iter (iterative overlapped block, only used in snow)
NOTE: 0-3 currently ignores the amount of bits spent, so quality
may be low.
me_range=<0-9999>
motion estimation search range (default: 0 (unlimited))
mbd=<0-2>
Macroblock decision algorithm (high quality mode), encode each
macro block in all modes and choose the best. This is slow but
results in better quality and file size.
0 Use mbcmp (default).
1 Select the MB mode which needs the fewest bits (=vhq).
2 Select the MB mode which has the best rate distortion.
vhq
Same as mbd=1, kept for compatibility reasons.
v4mv
Allow 4 motion vectors per macroblock (slightly better quality).
Works better if used with mbd>0.
obmc
overlapped block motion compensation (H.263+)
loop
loop filter (H.263+) note, this is broken
inter_threshold <-1000-1000>
Does absolutely nothing at the moment.
keyint=<0-300>
maximum interval between keyframes in frames (default: 250 or
one keyframe every ten seconds in a 25fps movie. This is the
recommended default for MPEG-4). Most codecs require regular
keyframes in order to limit the accumulation of mismatch error.
Keyframes are also needed for seeking, as seeking is only
possible to a keyframe - but keyframes need more space than
other frames, so larger numbers here mean slightly smaller files
but less precise seeking. 0 is equivalent to 1, which makes
every frame a keyframe. Values >300 are not recommended as the
quality might be bad depending upon decoder, encoder and luck.
It is a common for MPEG-1/2 to use values <=30.
sc_threshold=<-1000000000-1000000000>
Threshold for scene change detection. A keyframe is inserted by
libavcodec when it detects a scene change. You can specify the
sensitivity of the detection with this option. -1000000000
means there is a scene change detected at every frame,
1000000000 means no scene changes are detected (default: 0).
vb_strategy=<0-2> (pass one only)
strategy to choose between I/P/B-frames:
0 Always use the maximum number of B-frames (default).
1 Avoid B-frames in high motion scenes.
2 Places B-frames more or less optimally to yield maximum
quality (slower). You may want to reduce the speed
impact of this option tuning the option brd_scale.
brd_scale=<0-10>
Downscales frames for dynamic B-frame decision (default: 0).
Speed should increase by a factor of 4 every time brd_scale is
increased by 1.
bidir_refine=<0-4>
Refine the two motion vectors used in bidirectional macroblocks,
rather than re-using vectors from the forward and backward
searches. This option has no effect without B-frames.
0 Disabled (default).
1-4 Use a wider search (larger values are slower).
vpass=<1-3>
Activates internal two (or more) pass mode, only specify if you
wish to use two (or more) pass encoding.
1 first pass (also see turbo)
2 second pass
3 Nth pass (second and subsequent passes of N-pass
encoding)
Here is how it works, and how to use it:
The first pass (vpass=1) writes the statistics file. You might
want to deactivate some CPU-hungry options, like "turbo" mode
does.
In two pass mode, the second pass (vpass=2) reads the statistics
file and bases ratecontrol decisions on it.
In N-pass mode, the second pass (vpass=3, that is not a typo)
does both: It first reads the statistics, then overwrites them.
You might want to backup divx2pass.log before doing this if
there is any possibility that you will have to cancel MEncoder.
You can use all encoding options, except very CPU-hungry options
like "qns".
You can run this same pass over and over to refine the encode.
Each subsequent pass will use the statistics from the previous
pass to improve. The final pass can include any CPU-hungry
encoding options.
If you want a 2 pass encode, use first vpass=1, and then
vpass=2.
If you want a 3 or more pass encode, use vpass=1 for the first
pass and then vpass=3 and then vpass=3 again and again until you
are satisfied with the encode.
huffyuv:
pass 1
Saves statistics.
pass 2
Encodes with an optimal Huffman table based upon
statistics from the first pass.
turbo (two pass only)
Dramatically speeds up pass one using faster algorithms and
disabling CPU-intensive options. This will probably reduce
global PSNR a little bit (around 0.01dB) and change individual
frame type and PSNR a little bit more (up to 0.03dB).
aspect=<x/y>
Store movie aspect internally, just like with MPEG files. Much
nicer than rescaling, because quality is not decreased. Only
MPlayer will play these files correctly, other players will
display them with wrong aspect. The aspect parameter can be
given as a ratio or a floating point number.
EXAMPLE:
aspect=16/9 or aspect=1.78
autoaspect
Same as the aspect option, but automatically computes aspect,
taking into account all the adjustments (crop/expand/scale/etc.)
made in the filter chain. Does not incur a performance penalty,
so you can safely leave it always on.
vbitrate=<value>
Specify bitrate (pass 1/2) (default: 800).
WARNING: 1kbit = 1000 bits
4-16000
(in kbit)
16001-24000000
(in bit)
vratetol=<value>
approximated file size tolerance in kbit. 1000-100000 is a sane
range. (warning: 1kbit = 1000 bits) (default: 8000)
NOTE: vratetol should not be too large during the second pass or
there might be problems if vrc_(min|max)rate is used.
vrc_maxrate=<value>
maximum bitrate in kbit/sec (pass 1/2) (default: 0, unlimited)
vrc_minrate=<value>
minimum bitrate in kbit/sec (pass 1/2) (default: 0, unlimited)
vrc_buf_size=<value>
buffer size in kbit (pass 1/2). For MPEG-1/2 this also sets the
vbv buffer size, use 327 for VCD, 917 for SVCD and 1835 for DVD.
vrc_buf_aggressivity
currently useless
vrc_strategy
Dummy, reserved for future use.
vb_qfactor=<-31.0-31.0>
quantizer factor between B- and non-B-frames (pass 1/2)
(default: 1.25)
vi_qfactor=<-31.0-31.0>
quantizer factor between I- and non-I-frames (pass 1/2)
(default: 0.8)
vb_qoffset=<-31.0-31.0>
quantizer offset between B- and non-B-frames (pass 1/2)
(default: 1.25)
vi_qoffset=<-31.0-31.0>
(pass 1/2) (default: 0.0)
if v{b|i}_qfactor > 0
I/B-frame quantizer = P-frame quantizer * v{b|i}_qfactor +
v{b|i}_qoffset
else
do normal ratecontrol (do not lock to next P-frame quantizer)
and set q= -q * v{b|i}_qfactor + v{b|i}_qoffset
HINT: To do constant quantizer encoding with different
quantizers for I/P- and B-frames you can use: lmin=
<ip_quant>:lmax= <ip_quant>:vb_qfactor= <b_quant/ip_quant>.
vqblur=<0.0-1.0> (pass one)
Quantizer blur (default: 0.5), larger values will average the
quantizer more over time (slower change).
0.0 Quantizer blur disabled.
1.0 Average the quantizer over all previous frames.
vqblur=<0.0-99.0> (pass two)
Quantizer gaussian blur (default: 0.5), larger values will
average the quantizer more over time (slower change).
vqcomp=<0.0-1.0>
Quantizer compression, vrc_eq depends upon this (pass 1/2)
(default: 0.5). For instance, assuming the default rate control
equation is used, if vqcomp=1.0, the ratecontrol allocates to
each frame the number of bits needed to encode them all at the
same QP. If vqcomp=0.0, the ratecontrol allocates the same
number of bits to each frame, i.e. strict CBR. NOTE: Those are
extreme settings and should never be used. Perceptual quality
will be optimal somewhere in between these two extremes.
vrc_eq=<equation>
main ratecontrol equation (pass 1/2)
1
constant bitrate
tex
constant quality
1+(tex/avgTex-1)*qComp
approximately the equation of the old ratecontrol code
tex^qComp
with qcomp 0.5 or something like that (default)
infix operators:
+,-,*,/,^
variables:
tex
texture complexity
iTex,pTex
intra, non-intra texture complexity
avgTex
average texture complexity
avgIITex
average intra texture complexity in I-frames
avgPITex
average intra texture complexity in P-frames
avgPPTex
average non-intra texture complexity in P-frames
avgBPTex
average non-intra texture complexity in B-frames
mv
bits used for motion vectors
fCode
maximum length of motion vector in log2 scale
iCount
number of intra macroblocks / number of macroblocks
var
spatial complexity
mcVar
temporal complexity
qComp
qcomp from the command line
isI, isP, isB
Is 1 if picture type is I/P/B else 0.
Pi,E
See your favorite math book.
functions:
max(a,b),min(a,b)
maximum / minimum
gt(a,b)
is 1 if a>b, 0 otherwise
lt(a,b)
is 1 if a<b, 0 otherwise
eq(a,b)
is 1 if a==b, 0 otherwise
sin, cos, tan, sinh, cosh, tanh, exp, log, abs
vrc_override=<options>
User specified quality for specific parts (ending, credits, ...)
(pass 1/2). The options are <start-frame>, <end-frame>,
<quality>[/<start-frame>, <end-frame>, <quality>[/...]]:
quality (2-31)
quantizer
quality (-500-0)
quality correction in %
vrc_init_cplx=<0-1000>
initial complexity (pass 1)
vrc_init_occupancy=<0.0-1.0>
initial buffer occupancy, as a fraction of vrc_buf_size
(default: 0.9)
vqsquish=<0|1>
Specify how to keep the quantizer between qmin and qmax (pass 1/
2).
0 Use clipping.
1 Use a nice differentiable function (default).
vlelim=<-1000-1000>
Sets single coefficient elimination threshold for luminance.
Negative values will also consider the DC coefficient (should be
at least -4 or lower for encoding at quant=1):
0 disabled (default)
-4 JVT recommendation
vcelim=<-1000-1000>
Sets single coefficient elimination threshold for chrominance.
Negative values will also consider the DC coefficient (should be
at least -4 or lower for encoding at quant=1):
0 disabled (default)
7 JVT recommendation
vstrict=<-2|-1|0|1>
strict standard compliance
0 disabled
1 Only recommended if you want to feed the output into the
MPEG-4 reference decoder.
-1 Allow libavcodec specific extensions (default).
-2 Enables experimental codecs and features which may not
be playable with future MPlayer versions (snow, ffvhuff,
ffv1).
vdpart
Data partitioning. Adds 2 Bytes per video packet, improves
error-resistance when transferring over unreliable channels
(e.g. streaming over the internet). Each video packet will be
encoded in 3 separate partitions:
1. MVs
movement
2. DC coefficients
low res picture
3. AC coefficients
details
MV & DC are most important, loosing them looks far worse than
loosing the AC and the 1. & 2. partition. (MV & DC) are far
smaller than the 3. partition (AC) meaning that errors will hit
the AC partition much more often than the MV & DC partitions.
Thus, the picture will look better with partitioning than
without, as without partitioning an error will trash AC/DC/MV
equally.
vpsize=<0-10000> (also see vdpart)
Video packet size, improves error-resistance.
0
disabled (default)
100-1000
good choice
ss
slice structured mode for H.263+
gray
grayscale only encoding (faster)
vfdct=<0-10>
DCT algorithm
0 Automatically select a good one (default).
1 fast integer
2 accurate integer
3 MMX
4 mlib
5 AltiVec
6 floating point AAN
idct=<0-99>
IDCT algorithm
NOTE: To the best of our knowledge all these IDCTs do pass the
IEEE1180 tests.
0 Automatically select a good one (default).
1 JPEG reference integer
2 simple
3 simplemmx
4 libmpeg2mmx (inaccurate, do not use for encoding with
keyint >100)
5 ps2
6 mlib
7 arm
8 AltiVec
9 sh4
lumi_mask=<0.0-1.0>
Luminance masking is a ’psychosensory’ setting that is supposed
to make use of the fact that the human eye tends to notice fewer
details in very bright parts of the picture. Luminance masking
compresses bright areas stronger than medium ones, so it will
save bits that can be spent again on other frames, raising
overall subjective quality, while possibly reducing PSNR.
WARNING: Be careful, overly large values can cause disastrous
things.
WARNING: Large values might look good on some monitors but may
look horrible on other monitors.
0.0
disabled (default)
0.0-0.3
sane range
dark_mask=<0.0-1.0>
Darkness masking is a ’psychosensory’ setting that is supposed
to make use of the fact that the human eye tends to notice fewer
details in very dark parts of the picture. Darkness masking
compresses dark areas stronger than medium ones, so it will save
bits that can be spent again on other frames, raising overall
subjective quality, while possibly reducing PSNR.
WARNING: Be careful, overly large values can cause disastrous
things.
WARNING: Large values might look good on some monitors but may
look horrible on other monitors / TV / TFT.
0.0
disabled (default)
0.0-0.3
sane range
tcplx_mask=<0.0-1.0>
Temporal complexity masking (default: 0.0 (disabled)). Imagine
a scene with a bird flying across the whole scene; tcplx_mask
will raise the quantizers of the bird’s macroblocks (thus
decreasing their quality), as the human eye usually does not
have time to see all the bird’s details. Be warned that if the
masked object stops (e.g. the bird lands) it is likely to look
horrible for a short period of time, until the encoder figures
out that the object is not moving and needs refined blocks. The
saved bits will be spent on other parts of the video, which may
increase subjective quality, provided that tcplx_mask is
carefully chosen.
scplx_mask=<0.0-1.0>
Spatial complexity masking. Larger values help against
blockiness, if no deblocking filter is used for decoding, which
is maybe not a good idea.
Imagine a scene with grass (which usually has great spatial
complexity), a blue sky and a house; scplx_mask will raise the
quantizers of the grass’ macroblocks, thus decreasing its
quality, in order to spend more bits on the sky and the house.
HINT: Crop any black borders completely as they will reduce the
quality of the macroblocks (also applies without scplx_mask).
0.0
disabled (default)
0.0-0.5
sane range
NOTE: This setting does not have the same effect as using a
custom matrix that would compress high frequencies harder, as
scplx_mask will reduce the quality of P blocks even if only DC
is changing. The result of scplx_mask will probably not look as
good.
p_mask=<0.0-1.0> (also see vi_qfactor)
Reduces the quality of inter blocks. This is equivalent to
increasing the quality of intra blocks, because the same average
bitrate will be distributed by the rate controller to the whole
video sequence (default: 0.0 (disabled)). p_mask=1.0 doubles
the bits allocated to each intra block.
border_mask=<0.0-1.0>
border-processing for MPEG-style encoders. Border processing
increases the quantizer for macroblocks which are less than
1/5th of the frame width/height away from the frame border,
since they are often visually less important.
naq
Normalize adaptive quantization (experimental). When using
adaptive quantization (*_mask), the average per-MB quantizer may
no longer match the requested frame-level quantizer. Naq will
attempt to adjust the per-MB quantizers to maintain the proper
average.
ildct
Use interlaced DCT.
ilme
Use interlaced motion estimation (mutually exclusive with qpel).
alt
Use alternative scantable.
top=<-1-1>
-1 automatic
0 bottom field first
1 top field first
format=<value>
YV12
default
444P
for ffv1
422P
for HuffYUV, lossless JPEG and ffv1
411P,YVU9
for lossless JPEG and ffv1
BGR32
for lossless JPEG and ffv1
pred
(for HuffYUV)
0 left prediction
1 plane/gradient prediction
2 median prediction
pred
(for lossless JPEG)
0 left prediction
1 top prediction
2 topleft prediction
3 plane/gradient prediction
6 mean prediction
coder
(for ffv1)
0 vlc coding (Golomb-Rice)
1 arithmetic coding (CABAC)
context
(for ffv1)
0 small context model
1 large context model
(for ffvhuff)
0 predetermined Huffman tables (builtin or two pass)
1 adaptive Huffman tables
qpel
Use quarter pel motion compensation (mutually exclusive with
ilme).
HINT: This seems only useful for high bitrate encodings.
mbcmp=<0-2000>
Sets the comparison function for the macroblock decision, only
used if mbd=0.
0 (SAD)
sum of absolute differences, fast (default)
1 (SSE)
sum of squared errors
2 (SATD)
sum of absolute Hadamard transformed differences
3 (DCT)
sum of absolute DCT transformed differences
4 (PSNR)
sum of squared quantization errors (avoid, low quality)
5 (BIT)
number of bits needed for the block
6 (RD)
rate distortion optimal, slow
7 (ZERO)
0
8 (VSAD)
sum of absolute vertical differences
9 (VSSE)
sum of squared vertical differences
10 (NSSE)
noise preserving sum of squared differences
11 (W53)
5/3 wavelet, only used in snow
12 (W97)
9/7 wavelet, only used in snow
+256
Also use chroma, currently does not work (correctly)
with B-frames.
ildctcmp=<0-2000>
Sets the comparison function for interlaced DCT decision (see
mbcmp for available comparison functions).
precmp=<0-2000>
Sets the comparison function for motion estimation pre pass (see
mbcmp for available comparison functions) (default: 0).
cmp=<0-2000>
Sets the comparison function for full pel motion estimation (see
mbcmp for available comparison functions) (default: 0).
subcmp=<0-2000>
Sets the comparison function for sub pel motion estimation (see
mbcmp for available comparison functions) (default: 0).
nssew=<0-1000000>
This setting controls NSSE weight, where larger weights will
result in more noise. 0 NSSE is identical to SSE You may find
this useful if you prefer to keep some noise in your encoded
video rather than filtering it away before encoding (default:
8).
predia=<-99-6>
diamond type and size for motion estimation pre-pass
dia=<-99-6>
Diamond type & size for motion estimation. Motion search is an
iterative process. Using a small diamond does not limit the
search to finding only small motion vectors. It is just
somewhat more likely to stop before finding the very best motion
vector, especially when noise is involved. Bigger diamonds
allow a wider search for the best motion vector, thus are slower
but result in better quality.
Big normal diamonds are better quality than shape-adaptive
diamonds.
Shape-adaptive diamonds are a good tradeoff between speed and
quality.
NOTE: The sizes of the normal diamonds and shape adaptive ones
do not have the same meaning.
-3 shape adaptive (fast) diamond with size 3
-2 shape adaptive (fast) diamond with size 2
-1 slightly special: Can be slower and/or better than
dia=-2.
1 normal size=1 diamond (default) =EPZS type diamond
0
000
0
2 normal size=2 diamond
0
000
00000
000
0
trell
Trellis searched quantization. This will find the optimal
encoding for each 8x8 block. Trellis searched quantization is
quite simply an optimal quantization in the PSNR versus bitrate
sense (Assuming that there would be no rounding errors
introduced by the IDCT, which is obviously not the case.). It
simply finds a block for the minimum of error and lambda*bits.
lambda
quantization parameter (QP) dependent constant
bits
amount of bits needed to encode the block
error
sum of squared errors of the quantization
cbp
Rate distorted optimal coded block pattern. Will select the
coded block pattern which minimizes distortion + lambda*rate.
This can only be used together with trellis quantization.
mv0
Try to encode each MB with MV=<0,0> and choose the better one.
This has no effect if mbd=0.
qprd (mbd=2 only)
rate distorted optimal quantization parameter (QP) for the given
lambda of each macroblock
last_pred=<0-99>
amount of motion predictors from the previous frame
0 (default)
a Will use 2a+1 x 2a+1 macroblock square of motion vector
predictors from the previous frame.
preme=<0-2>
motion estimation pre-pass
0 disabled
1 only after I-frames (default)
2 always
subq=<1-8>
subpel refinement quality (for qpel) (default: 8 (high quality))
NOTE: This has a significant effect on speed.
psnr
print the PSNR (peak signal to noise ratio) for the whole video
after encoding and store the per frame PSNR in a file with a
name like ’psnr_hhmmss.log’. Returned values are in dB
(decibel), the higher the better.
mpeg_quant
Use MPEG quantizers instead of H.263.
aic
ac prediction (advanced intra prediction for H.263+)
NOTE: vqmin should be 8 or larger for H.263+ AIC.
aiv
alternative inter vlc for H.263+
umv
unlimited MVs (H.263+ only) Allows encoding of arbitrarily long
MVs.
ibias=<-256-256>
intra quantizer bias (256 equals 1.0, MPEG style quantizer
default: 96, H.263 style quantizer default: 0)
NOTE: The H.263 MMX quantizer cannot handle positive biases (set
vfdct=1 or 2), the MPEG MMX quantizer cannot handle negative
biases (set vfdct=1 or 2).
pbias=<-256-256>
inter quantizer bias (256 equals 1.0, MPEG style quantizer
default: 0, H.263 style quantizer default: -64)
NOTE: The H.263 MMX quantizer cannot handle positive biases (set
vfdct=1 or 2), the MPEG MMX quantizer cannot handle negative
biases (set vfdct=1 or 2).
HINT: A more positive bias (-32 - -16 instead of -64) seems to
improve the PSNR.
nr=<0-100000>
Noise reduction, 0 means disabled. 0-600 is a useful range for
typical content, but you may want to turn it up a bit more for
very noisy content (default: 0). Given its small impact on
speed, you might want to prefer to use this over filtering noise
away with video filters like denoise3d or hqdn3d.
qns=<0-3>
Quantizer noise shaping. Rather than choosing quantization to
most closely match the source video in the PSNR sense, it
chooses quantization such that noise (usually ringing) will be
masked by similar-frequency content in the image. Larger values
are slower but may not result in better quality. This can and
should be used together with trellis quantization, in which case
the trellis quantization (optimal for constant weight) will be
used as startpoint for the iterative search.
0 disabled (default)
1 Only lower the absolute value of coefficients.
2 Only change coefficients before the last non-zero
coefficient + 1.
3 Try all.
inter_matrix=<comma separated matrix>
Use custom inter matrix. It needs a comma separated string of
64 integers.
intra_matrix=<comma separated matrix>
Use custom intra matrix. It needs a comma separated string of
64 integers.
vqmod_amp
experimental quantizer modulation
vqmod_freq
experimental quantizer modulation
dc
intra DC precision in bits (default: 8). If you specify
vcodec=mpeg2video this value can be 8, 9, 10 or 11.
cgop (also see sc_threshold)
Close all GOPs. Currently it only works if scene change
detection is disabled (sc_threshold=1000000000).
nuv (-nuvopts)
Nuppel video is based on RTJPEG and LZO. By default frames are first
encoded with RTJPEG and then compressed with LZO, but it is possible to
disable either or both of the two passes. As a result, you can in fact
output raw i420, LZO compressed i420, RTJPEG, or the default LZO
compressed RTJPEG.
NOTE: The nuvrec documentation contains some advice and examples about
the settings to use for the most common TV encodings.
c=<0-20>
chrominance threshold (default: 1)
l=<0-20>
luminance threshold (default: 1)
lzo
Enable LZO compression (default).
nolzo
Disable LZO compression.
q=<3-255>
quality level (default: 255)
raw
Disable RTJPEG encoding.
rtjpeg
Enable RTJPEG encoding (default).
xvidenc (-xvidencopts)
There are three modes available: constant bitrate (CBR), fixed
quantizer and two pass.
pass=<1|2>
Specify the pass in two pass mode.
turbo (two pass only)
Dramatically speeds up pass one using faster algorithms and
disabling CPU-intensive options. This will probably reduce
global PSNR a little bit and change individual frame type and
PSNR a little bit more.
bitrate=<value> (CBR or two pass mode)
Sets the bitrate to be used in kbits/second if <16000 or in
bits/second if >16000. If <value> is negative, XviD will use
its absolute value as the target size (in kBytes) of the video
and compute the associated bitrate automagically (default: 687
kbits/s).
fixed_quant=<1-31>
Switch to fixed quantizer mode and specify the quantizer to be
used.
zones=<zone0>[/<zone1>[/...]] (CBR or two pass mode)
User specified quality for specific parts (ending, credits,
...). Each zone is <start-frame>,<mode>,<value> where <mode>
may be
q Constant quantizer override, where value=<2.0-31.0>
represents the quantizer value.
w Ratecontrol weight override, where value=<0.01-2.00>
represents the quality correction in %.
EXAMPLE:
zones=90000,q,20
Encodes all frames starting with frame 90000 at constant
quantizer 20.
zones=0,w,0.1/10001,w,1.0/90000,q,20
Encode frames 0-10000 at 10% bitrate, encode frames
90000 up to the end at constant quantizer 20. Note that
the second zone is needed to delimit the first zone, as
without it everything up until frame 89999 would be
encoded at 10% bitrate.
me_quality=<0-6>
This option controls the motion estimation subsystem. The
higher the value, the more precise the estimation should be
(default: 6). The more precise the motion estimation is, the
more bits can be saved. Precision is gained at the expense of
CPU time so decrease this setting if you need realtime encoding.
(no)interlacing
Encode the fields of interlaced video material. Turn this
option on for interlaced content.
NOTE: Should you rescale the video, you would need an interlace-
aware resizer, which you can activate with -vf
scale=<width>:<height>:1.
4mv
Use 4 motion vectors per macroblock. This might give better
compression, but slows down encoding.
WARNING: As of XviD-1.0.x, this option is no longer available
separately, and its functionality is included in the me_quality
option. When me_quality > 4, 4mv is activated.
rc_reaction_delay_factor=<value>
This parameter controls the number of frames the CBR rate
controller will wait before reacting to bitrate changes and
compensating for them to obtain a constant bitrate over an
averaging range of frames.
rc_averaging_period=<value>
Real CBR is hard to achieve. Depending on the video material,
bitrate can be variable, and hard to predict. Therefore XviD
uses an averaging period for which it guarantees a given amount
of bits (minus a small variation). This settings expresses the
"number of frames" for which XviD averages bitrate and tries to
achieve CBR.
rc_buffer=<value>
size of the rate control buffer
quant_range=<1-31>-<1-31>[/<1-31>-<1-31>]
CBR mode: min & max quantizer for all frames (default: 2-31)
two pass mode: min & max quantizer for I/P-frames (default:
2-31/2-31)
WARNING: As of XviD-1.0.x, this option is replaced by the
[min|max]_[i|p|b]quant options.
min_key_interval=<value> (two pass only)
minimum interval between keyframes (default: 0)
max_key_interval=<value>
maximum interval between keyframes (default: 10*fps)
mpeg_quant
Use MPEG quantizers instead of H.263. For high bitrates, you
will find that MPEG quantization preserves more detail. For low
bitrates, the smoothing of H.263 will give you less block noise.
When using custom matrices, MPEG must be used.
WARNING: As of XviD-1.0.x, this option is replaced by the
quant_type option.
mod_quant
Decide whether to use MPEG or H.263 quantizers on a frame-by-
frame basis (two pass mode only).
WARNING: This will generate an illegal bitstream, and most
likely not be decodable by any MPEG-4 decoder besides libavcodec
or XviD.
WARNING: As of XviD-1.0.x, this option is no longer available.
keyframe_boost=<0-1000> (two pass mode only)
Shift some bits from the pool for other frame types to intra
frames, thus improving keyframe quality. This amount is an
extra percentage, so a value of 10 will give your keyframes 10%
more bits than normal (default: 0).
kfthreshold=<value> (two pass mode only)
Works together with kfreduction. Determines the minimum
distance below which you consider that two frames are considered
consecutive and treated differently according to kfreduction
(default: 10).
kfreduction=<0-100> (two pass mode only)
The above two settings can be used to adjust the size of
keyframes that you consider too close to the first (in a row).
kfthreshold sets the range in which keyframes are reduced, and
kfreduction determines the bitrate reduction they get. The last
I-frame will get treated normally (default: 30).
divx5bvop
Generate DivX5 compatible B-frames (default: on). This seems to
be mandatory only for old versions of DivX’s decoder.
WARNING: As of XviD-1.0.x, this option is replaced by the
closed_gop option.
(no)greyscale
Make XviD discard chroma planes so the encoded video is
greyscale only. Note that this does not speed up encoding, it
just prevents chroma data from being written in the last stage
of encoding.
debug
Save per-frame statistics in ./xvid.dbg. (This is not the two
pass control file.)
The following options are only available with the latest stable
releases of XviD 1.0.x (api4).
(no)packed
This option is meant to solve frame-order issues when encoding
to container formats like AVI that cannot cope with out-of-order
frames. In practice, most decoders (both software and hardware)
are able to deal with frame-order themselves, and may get
confused when this option is turned on, so you can safely leave
if off, unless you really know what you are doing.
WARNING: This will generate an illegal bitstream, and will not
be decodable by ISO-MPEG-4 decoders except DivX/libavcodec/XviD.
WARNING: This will also store a fake DivX version in the file so
the bug autodetection of some decoders might be confused.
max_bframes=<0-4>
Maximum number of B-frames to put between I/P-frames (default:
2).
bquant_ratio=<0-1000>
quantizer ratio between B- and non-B-frames, 150=1.50 (default:
150)
bquant_offset=<-1000-1000>
quantizer offset between B- and non-B-frames, 100=1.00 (default:
100)
bf_threshold=<-255-255>
This setting allows you to specify what priority to place on the
use of B-frames. The higher the value, the higher the
probability of B-frames being used (default: 0). Do not forget
that B-frames usually have a higher quantizer, and therefore
aggressive production of B-frames may cause worse visual
quality.
(no)closed_gop
This option tells XviD to close every GOP (Group Of Pictures
bounded by two I-frames), which makes GOPs independent from each
other. This just implies that the last frame of the GOP is
either a P-frame or a N-frame but not a B-frame. It is usually
a good idea to turn this option on (default: on).
frame_drop_ratio=<0-100> (max_bframes=0 only)
This setting allows the creation of variable framerate video
streams. The value of the setting specifies a threshold under
which, if the difference of the following frame to the previous
frame is below or equal to this threshold, a frame gets not
coded (a so called n-vop is placed in the stream). On playback,
when reaching an n-vop the previous frame will be displayed.
WARNING: Playing with this setting may result in a jerky video,
so use it at your own risks!
(no)qpel
MPEG-4 uses a half pixel precision for its motion search by
default. The standard proposes a mode where encoders are
allowed to use quarter pixel precision. This option usually
results in a sharper image. Unfortunately it has a great impact
on bitrate and sometimes the higher bitrate use will prevent it
from giving a better image quality at a fixed bitrate. It is
better to test with and without this option and see whether it
is worth activating.
(no)gmc
Enable Global Motion Compensation, which makes XviD generate
special frames (GMC-frames) which are well suited for Pan/Zoom/
Rotating images. Whether or not the use of this option will
save bits is highly dependent on the source material.
(no)trellis
Trellis Quantization is a kind of adaptive quantization method
that saves bits by modifying quantized coefficients to make them
more compressible by the entropy encoder. Its impact on quality
is good, and if VHQ uses too much CPU for you, this setting can
be a good alternative to save a few bits (and gain quality at
fixed bitrate) at a lesser cost than with VHQ (default: on).
(no)cartoon
Activate this if your encoded sequence is an anime/cartoon. It
modifies some XviD internal thresholds so XviD takes better
decisions on frame types and motion vectors for flat looking
cartoons.
quant_type=<h263|mpeg>
Sets the type of quantizer to use. For high bitrates, you will
find that MPEG quantization preserves more detail. For low
bitrates, the smoothing of H.263 will give you less block noise.
When using custom matrices, MPEG quantization must be used.
(no)chroma_me
The usual motion estimation algorithm uses only the luminance
information to find the best motion vector. However for some
video material, using the chroma planes can help find better
vectors. This setting toggles the use of chroma planes for
motion estimation (default: on).
(no)chroma_opt
Enable a chroma optimizer prefilter. It will do some extra
magic on color information to minimize the stepped-stairs effect
on edges. It will improve quality at the cost of encoding
speed. It reduces PSNR by nature, as the mathematical deviation
to the original picture will get bigger, but the subjective
image quality will raise. Since it works with color
information, you might want to turn it off when encoding in
greyscale.
(no)hq_ac
Activates high-quality prediction of AC coefficients for intra
frames from neighbor blocks (default: on).
vhq=<0-4>
The motion search algorithm is based on a search in the usual
color domain and tries to find a motion vector that minimizes
the difference between the reference frame and the encoded
frame. With this setting activated, XviD will also use the
frequency domain (DCT) to search for a motion vector that
minimizes not only the spatial difference but also the encoding
length of the block. Fastest to slowest:
0 off
1 mode decision (inter/intra MB) (default)
2 limited search
3 medium search
4 wide search
(no)lumi_mask
Adaptive quantization allows the macroblock quantizers to vary
inside each frame. This is a ’psychosensory’ setting that is
supposed to make use of the fact that the human eye tends to
notice fewer details in very bright and very dark parts of the
picture. It compresses those areas more strongly than medium
ones, which will save bits that can be spent again on other
frames, raising overall subjective quality and possibly reducing
PSNR.
min_iquant=<0-31>
minimum I-frame quantizer (default: 2)
max_iquant=<0-31>
maximum I-frame quantizer (default: 31)
min_pquant=<0-31>
minimum P-frame quantizer (default: 2)
max_pquant=<0-31>
maximum P-frame quantizer (default: 31)
min_bquant=<0-31>
minimum B-frame quantizer (default: 2)
max_bquant=<0-31>
maximum B-frame quantizer (default: 31)
quant_intra_matrix=<filename>
Load a custom intra matrix file. You can build such a file with
xvid4conf’s matrix editor.
quant_inter_matrix=<filename>
Load a custom inter matrix file. You can build such a file with
xvid4conf’s matrix editor.
curve_compression_high=<0-100>
This setting allows XviD to take a certain percentage of bits
away from high bitrate scenes and give them back to the bit
reservoir. You could also use this if you have a clip with so
many bits allocated to high-bitrate scenes that the
low(er)-bitrate scenes start to look bad (default: 0).
curve_compression_low=<0-100>
This setting allows XviD to give a certain percentage of extra
bits to the low bitrate scenes, taking a few bits from the
entire clip. This might come in handy if you have a few low-
bitrate scenes that are still blocky (default: 0).
overflow_control_strength=<0-100>
During pass one of two pass encoding, a scaled bitrate curve is
computed. The difference between that expected curve and the
result obtained during encoding is called overflow. Obviously,
the two pass rate controller tries to compensate for that
overflow, distributing it over the next frames. This setting
controls how much of the overflow is distributed every time
there is a new frame. Low values allow lazy overflow control,
big rate bursts are compensated for more slowly (could lead to
lack of precision for small clips). Higher values will make
changes in bit redistribution more abrupt, possibly too abrupt
if you set it too high, creating artifacts (default: 5).
NOTE: This setting impacts quality a lot, play with it
carefully!
max_overflow_improvement=<0-100>
During the frame bit allocation, overflow control may increase
the frame size. This parameter specifies the maximum percentage
by which the overflow control is allowed to increase the frame
size, compared to the ideal curve allocation (default: 5).
max_overflow_degradation=<0-100>
During the frame bit allocation, overflow control may decrease
the frame size. This parameter specifies the maximum percentage
by which the overflow control is allowed to decrease the frame
size, compared to the ideal curve allocation (default: 5).
container_frame_overhead=<0...>
Specifies a frame average overhead per frame, in bytes. Most of
the time users express their target bitrate for video w/o taking
care of the video container overhead. This small but (mostly)
constant overhead can cause the target file size to be exceeded.
XviD allows users to set the amount of overhead per frame the
container generates (give only an average per frame). 0 has a
special meaning, it lets XviD use its own default values
(default: 24 - AVI average overhead).
profile=<profile_name>
Restricts options and VBV (peak bitrate over a short period)
according to the Simple, Advanced Simple and DivX profiles. The
resulting videos should be playable on standalone players
adhering to these profile specifications.
unrestricted
no restrictions (default)
sp0
simple profile at level 0
sp1
simple profile at level 1
sp2
simple profile at level 2
sp3
simple profile at level 3
asp0
advanced simple profile at level 0
asp1
advanced simple profile at level 1
asp2
advanced simple profile at level 2
asp3
advanced simple profile at level 3
asp4
advanced simple profile at level 4
asp5
advanced simple profile at level 5
dxnhandheld
DXN handheld profile
dxnportntsc
DXN portable NTSC profile
dxnportpal
DXN portable PAL profile
dxnhtntsc
DXN home theater NTSC profile
dxnhtpal
DXN home theater PAL profile
dxnhdtv
DXN HDTV profile
NOTE: These profiles should be used in conjunction with an
appropriate -ffourcc. Generally DX50 is applicable, as some
players do not recognize XviD but most recognize DivX.
par=<mode>
Specifies the Pixel Aspect Ratio mode (not to be confused with
DAR, the Display Aspect Ratio). PAR is the ratio of the width
and height of a single pixel. So both are related like this:
DAR = PAR * (width/height).
MPEG-4 defines 5 pixel aspect ratios and one extended one,
giving the opportunity to specify a specific pixel aspect ratio.
5 standard modes can be specified:
vga11
It is the usual PAR for PC content. Pixels are a square
unit.
pal43
PAL standard 4:3 PAR. Pixels are rectangles.
pal169
same as above
ntsc43
same as above
ntsc169
same as above (Do not forget to give the exact ratio.)
ext
Allows you to specify your own pixel aspect ratio with
par_width and par_height.
NOTE: In general, setting aspect and autoaspect options is
enough.
par_width=<1-255> (par=ext only)
Specifies the width of the custom pixel aspect ratio.
par_height=<1-255> (par=ext only)
Specifies the height of the custom pixel aspect ratio.
aspect=<x/y | f (float value)>
Store movie aspect internally, just like MPEG files. Much nicer
solution than rescaling, because quality is not decreased.
MPlayer and a few others players will play these files
correctly, others will display them with the wrong aspect. The
aspect parameter can be given as a ratio or a floating point
number.
(no)autoaspect
Same as the aspect option, but automatically computes aspect,
taking into account all the adjustments (crop/expand/scale/etc.)
made in the filter chain.
psnr
Print the PSNR (peak signal to noise ratio) for the whole video
after encoding and store the per frame PSNR in a file with a
name like ’psnr_hhmmss.log’ in the current directory. Returned
values are in dB (decibel), the higher the better.
The following option is only available in development versions of XviD
1.1.x.
bvhq=<0|1>
This setting allows vector candidates for B-frames to be used
for the encoding chosen using a rate distortion optimized
operator, which is what is done for P-frames by the vhq option.
This produces nicer-looking B-frames while incurring almost no
performance penalty (default: 1).
x264enc (-x264encopts)
bitrate=<value>
Sets the average bitrate to be used in kbits/second (default:
off). Since local bitrate may vary, this average may be
inaccurate for very short videos (see ratetol). Constant
bitrate can be achieved by combining this with vbv_maxrate, at
significant reduction in quality.
qp_constant=<0-51>
This selects the quantizer to use for P-frames. I- and B-frames
are offset from this value by ip_factor and pb_factor,
respectively. 20-40 is a useful range (default: 26). Lower
values result in better fidelity, but higher bitrates. 0 is
lossless. Note that quantization in H.264 works differently
from MPEG-1/2/4: H.264’s quantization parameter (QP) is on a
logarithmic scale. The mapping is approximately H264QP = 12 +
6*log2(MPEGQP). For example, MPEG at QP=2 is equivalent to
H.264 at QP=18.
crf=<1-50>
Enables constant quality mode, and selects the quality. The
scale is similar to QP. Like the bitrate-based modes, this
allows each frame to use a different QP based on the frame’s
complexity.
pass=<1-3>
Enable 2 or 3-pass mode. It is recommended to always encode in
2 or 3-pass mode as it leads to a better bit distribution and
improves overall quality.
1 first pass
2 second pass (of two pass encoding)
3 Nth pass (second and third passes of three pass
encoding)
Here is how it works, and how to use it:
The first pass (pass=1) collects statistics on the video and
writes them to a file. You might want to deactivate some CPU-
hungry options, apart from the ones that are on by default.
In two pass mode, the second pass (pass=2) reads the statistics
file and bases ratecontrol decisions on it.
In three pass mode, the second pass (pass=3, that is not a typo)
does both: It first reads the statistics, then overwrites them.
You can use all encoding options, except very CPU-hungry
options.
The third pass (pass=3) is the same as the second pass, except
that it has the second pass’ statistics to work from. You can
use all encoding options, including CPU-hungry ones.
The first pass may use either average bitrate or constant
quantizer. ABR is recommended, since it does not require
guessing a quantizer. Subsequent passes are ABR, and must
specify bitrate.
NOTE: x264 three pass support being quite recent in MEncoder, we
welcome any feedback you could give us on good combinations of
x264 options that are both fast and provide good quality.
turbo=<0-2>
Fast first pass mode. During the first pass of a two or more
pass encode it is possible to gain speed by disabling some
options with negligible or even no impact on the final pass
output quality.
0 disabled (default)
1 Reduce subq, frameref and disable some inter-macroblock
partition analysis modes.
2 Reduce subq and frameref to 1, use a diamond ME search
and disable all partition analysis modes.
Level 1 can increase first pass speed up to 2x with no change in
the global PSNR of the final pass compared to a full quality
first pass.
Level 2 can increase first pass speed up to 4x with about +/-
0.05dB change in the global PSNR of the final pass compared to a
full quality first pass.
keyint=<value>
Sets maximum interval between IDR-frames (default: 250). Larger
values save bits, thus improve quality, at the cost of seeking
precision. Unlike MPEG-1/2/4, H.264 does not suffer from DCT
drift with large values of keyint.
keyint_min=<1-keyint/2>
Sets minimum interval between IDR-frames (default: 25). If
scenecuts appear within this interval, they are still encoded as
I-frames, but do not start a new GOP. In H.264, I-frames do not
necessarily bound a closed GOP because it is allowable for a P-
frame to be predicted from more frames than just the one frame
before it (also see frameref). Therefore, I-frames are not
necessarily seekable. IDR-frames restrict subsequent P-frames
from referring to any frame prior to the IDR-frame.
scenecut=<-1-100>
Controls how aggressively to insert extra I-frames (default:
40). With small values of scenecut, the codec often has to
force an I-frame when it would exceed keyint. Good values of
scenecut may find a better location for the I-frame. Large
values use more I-frames than necessary, thus wasting bits. -1
disables scene-cut detection, so I-frames are inserted only once
every other keyint frames, even if a scene-cut occurs earlier.
This is not recommended and wastes bitrate as scenecuts encoded
as P-frames are just as big as I-frames, but do not reset the
"keyint counter".
frameref=<1-16>
Number of previous frames used as predictors in B- and P-frames
(default: 1). This is effective in anime, but in live-action
material the improvements usually drop off very rapidly above 6
or so reference frames. This has no effect on decoding speed,
but does increase the memory needed for decoding. Some decoders
can only handle a maximum of 15 reference frames.
bframes=<0-16>
maximum number of consecutive B-frames between I- and P-frames
(default: 0)
(no)b_adapt
Automatically decides when to use B-frames and how many, up to
the maximum specified above (default: on). If this option is
disabled, then the maximum number of B-frames is used.
b_bias=<-100-100>
Controls the decision performed by b_adapt. A higher b_bias
produces more B-frames (default: 0).
(no)b_pyramid
Allows B-frames to be used as references for predicting other
frames. For example, consider 3 consecutive B-frames: I0 B1 B2
B3 P4. Without this option, B-frames follow the same pattern as
MPEG-[124]. So they are coded in the order I0 P4 B1 B2 B3, and
all the B-frames are predicted from I0 and P4. With this
option, they are coded as I0 P4 B2 B1 B3. B2 is the same as
above, but B1 is predicted from I0 and B2, and B3 is predicted
from B2 and P4. This usually results in slightly improved
compression, at almost no speed cost. However, this is an
experimental option: it is not fully tuned and may not always
help. Requires bframes >= 2. Disadvantage: increases decoding
delay to 2 frames.
(no)deblock
Use deblocking filter (default: on). As it takes very little
time compared to its quality gain, it is not recommended to
disable it.
deblockalpha=<-6-6>
AlphaC0 parameter of deblocking filter (default: 0). This
adjusts thresholds for the H.264 in-loop deblocking filter.
First, this parameter adjusts the maximum amount of change that
the filter is allowed to cause on any one pixel. Secondly, this
parameter affects the threshold for difference across the edge
being filtered. A positive value reduces blocking artifacts
more, but will also smear details.
The default behavior of the filter almost always achieves
optimal quality, so it is best to either leave it alone, or make
only small adjustments. However, if your source material
already has some blocking or noise which you would like to
remove, it may be a good idea to turn it up a little bit.
deblockbeta=<-6-6>
Beta parameter of deblocking filter (default: 0). Affects the
detail threshold. Very detailed blocks are not filtered, since
the smoothing caused by the filter would be more noticeable than
the original blocking.
(no)cabac
Use CABAC (Context-Adaptive Binary Arithmetic Coding) (default:
on). Slightly slows down encoding and decoding, but should save
10-15% bitrate. Unless you are looking for decoding speed, you
should not disable it.
qp_min=<1-51> (ABR or two pass)
Minimum quantizer, 10-30 seems to be a useful range (default:
10).
qp_max=<1-51> (ABR or two pass)
maximum quantizer (default: 51)
qp_step=<1-50> (ABR or two pass)
maximum value by which the quantizer may be
incremented/decremented between frames (default: 2)
ratetol=<0.1-100.0> (ABR or two pass)
allowed variance in average bitrate (no particular units)
(default: 1.0)
vbv_maxrate=<value> (ABR or two pass)
maximum local bitrate, in kbits/second (default: disabled)
vbv_bufsize=<value> (ABR or two pass)
averaging period for vbv_maxrate, in kbits (default: none, must
be specified if vbv_maxrate is enabled)
vbv_init=<0.0-1.0> (ABR or two pass)
initial buffer occupancy, as a fraction of vbv_bufsize (default:
0.9)
ip_factor=<value>
quantizer factor between I- and P-frames (default: 1.4)
pb_factor=<value>
quantizer factor between P- and B-frames (default: 1.3)
qcomp=<0-1> (ABR or two pass)
quantizer compression (default: 0.6). A lower value makes the
bitrate more constant, while a higher value makes the
quantization parameter more constant.
cplx_blur=<0-999> (two pass only)
Temporal blur of the estimated frame complexity, before curve
compression (default: 20). Lower values allow the quantizer
value to jump around more, higher values force it to vary more
smoothly. cplx_blur ensures that each I-frame has quality
comparable to the following P-frames, and ensures that
alternating high and low complexity frames (e.g. low fps
animation) do not waste bits on fluctuating quantizer.
qblur=<0-99> (two pass only)
Temporal blur of the quantization parameter, after curve
compression (default: 0.5). Lower values allow the quantizer
value to jump around more, higher values force it to vary more
smoothly.
zones=<zone0>[/<zone1>[/...]]
User specified quality for specific parts (ending, credits, ...)
(ABR or two pass). Each zone is <start-frame>,<end-
frame>,<option> where option may be
q=<0-51>
quantizer
b=<0.01-100.0>
bitrate multiplier
NOTE: The quantizer option is not strictly enforced. It affects
only the planning stage of ratecontrol, and is still subject to
overflow compensation and qp_min/qp_max.
direct_pred=<0-2>
Determines the type of motion prediction used for direct
macroblocks in B-frames.
0 None: direct macroblocks are not used.
1 Spatial: motion vectors are extrapolated from
neighboring blocks.
2 Temporal: motion vectors are interpolated from the
following P-frame. (default)
Spatial and temporal are approximately the same speed and PSNR,
but temporal often looks better. direct_pred=0 is both slower
and lower quality.
(no)weight_b
Use weighted prediction in B-frames. Without this option,
bidirectionally predicted macroblocks give equal weight to each
reference frame. With this option, the weights are determined
by the temporal position of the B-frame relative to the
references. Requires bframes > 1.
(no)i4x4
Use additional macroblock type i4x4 (default: enabled). Without
this option, P- and B-frames will use only i16x16 and the inter
types specified below.
(no)i8x8
Use additional macroblock type i8x8 (default: enabled). This
option has no effect unless 8x8dct is enabled.
(no)b8x8mv
Use additional macroblock types b16x8, b8x16, b8x8 (default:
enabled). Without this option, B-frames will use only types
i16x16, i8x8, i4x4, b16x16, skip, direct. See 4x4mv for
details.
(no)8x8mv
Use additional macroblock types p16x8, p8x16, p8x8 (default:
enabled). Without this option, P-frames will use only types
i16x16, i8x8, i4x4, p16x16, skip. This option is provided for
experimentation only. It is not recommended to disable 8x8mv in
a real encode.
(no)4x4mv
Use additional macroblock types p8x4, p4x8, p4x4 (default:
disabled). Without this option, P-frames will use only types
i16x16, i8x8, i4x4, p16x16, p16x8, p8x16, p8x8, skip. Requires
8x8mv.
The idea is to find the type and size that best describe a
certain area of the picture. For example, a global pan is
better represented by 16x16 blocks, while small moving objects
are better represented by smaller blocks.
4x4mv is recommended only with subq >= 3.
(no)8x8dct
Adaptive spatial transform size: allows macroblocks to choose
between 4x4 and 8x8 DCT. Also allows the i8x8 macroblock type.
Without this option, only 4x4 DCT is used.
me=<1-4>
Select fullpixel motion estimation algorithm.
1 diamond search, radius 1 (fast)
2 hexagon search, radius 2 (default)
3 uneven multi-hexagon search
4 exhaustive search (very slow)
me_range=<4-64>
radius of exhaustive or multi-hexagon motion search (default:
16)
subq=<1-6>
Adjust subpel refinement quality. This parameter controls
quality versus speed tradeoffs involved in the motion estimation
decision process. subq=5 can compress up to 10% better than
subq=1.
1 Runs fullpixel precision motion estimation on all
candidate macroblock types. Then selects the best type.
Then refines the motion of that type to fast
quarterpixel precision (fastest).
2 As 1, but uses a slower quarterpixel refinement.
3 Runs halfpixel precision motion estimation on all
candidate macroblock types. Then selects the best type.
Then refines the motion of that type to quarterpixel
precision.
4 Runs fast quarterpixel precision motion estimation on
all candidate macroblock types. Then selects the best
type. Then finishes the quarterpixel refinement for
that type.
5 Runs best quality quarterpixel precision motion
estimation on all candidate macroblock types, before
selecting the best type (default).
6 Enables rate-distortion optimization of macroblock types
in I- and P-frames. (best)
In the above, "all candidates" does not exactly mean all enabled
types: 4x4, 4x8, 8x4 are tried only if 8x8 is better than 16x16.
(no)chroma_me
Takes into account chroma information during subpixel motion
search (default: enabled). Requires subq>=5.
(no)mixed_refs
Allows each 8x8 or 16x8 motion partition to independently select
a reference frame. Without this option, a whole macroblock must
use the same reference. Requires frameref>1.
(no)brdo
Enables rate-distortion optimization of macroblock types in B-
frames. Requires subq=6.
(no)bime
Refine the two motion vectors used in bidirectional macroblocks,
rather than re-using vectors from the forward and backward
searches. This option has no effect without B-frames.
trellis=<0-2>
rate-distortion optimal quantization
0 disabled
1 enabled only for the final encode (default)
2 enabled during all mode decisions (slow, requires
subq=6)
(no)fast_pskip
Performs early skip detection in P-frames (default: enabled).
This usually improves speed at no cost, but it can sometimes
produce artifacts in areas with no details, like sky.
nr=<0-100000>
Noise reduction, 0 means disabled. 100-1000 is a useful range
for typical content, but you may want to turn it up a bit more
for very noisy content (default: 0). Given its small impact on
speed, you might want to prefer to use this over filtering noise
away with video filters like denoise3d or hqdn3d.
chroma_qp_offset=<-12-12>
Use a different quantizer for chroma as compared to luma.
Useful values are in the range <-2-2> (default: 0).
cqm=<flat|jvt|<filename>>
Either uses a predefined custom quantization matrix or loads a
JM format matrix file.
flat
Use the predefined flat 16 matrix (default).
jvt
Use the predefined JVT matrix.
<filename>
Use the provided JM format matrix file.
NOTE: Windows CMD.EXE users may experience problems with parsing
the command line if they attempt to use all the CQM lists. This
is due to a command line length limitation. In this case it is
recommended the lists be put into a JM format CQM file and
loaded as specified above.
cqm4iy=<list> (also see cqm)
Custom 4x4 intra luminance matrix, given as a list of 16 comma
separated values in the 1-255 range.
cqm4ic=<list> (also see cqm)
Custom 4x4 intra chrominance matrix, given as a list of 16 comma
separated values in the 1-255 range.
cqm4py=<list> (also see cqm)
Custom 4x4 inter luminance matrix, given as a list of 16 comma
separated values in the 1-255 range.
cqm4pc=<list> (also see cqm)
Custom 4x4 inter chrominance matrix, given as a list of 16 comma
separated values in the 1-255 range.
cqm8iy=<list> (also see cqm)
Custom 8x8 intra luminance matrix, given as a list of 64 comma
separated values in the 1-255 range.
cqm8py=<list> (also see cqm)
Custom 8x8 inter luminance matrix, given as a list of 64 comma
separated values in the 1-255 range.
level_idc=<10-51>
Set the bitstream’s level as defined by annex A of the H.264
standard (default: 51 - Level 5.1). This is used for telling
the decoder what capabilities it needs to support. Use this
parameter only if you know what it means, and you have a need to
set it.
threads=<1-4>
Split each frame into slices and encode them in parallel
(default: 1). Also allows multithreaded decoding if the decoder
supports it (lavc does not). This has a slight penalty to
compression. Requires that libx264 was compiled with pthread
support; if not, this option will produce a warning and enable
slices but not multithreading.
log=<-1-3>
Adjust the amount of logging info printed to the screen.
-1 none
0 Print errors only.
1 warnings
2 PSNR and other analysis statistics when the encode
finishes (default)
3 PSNR, QP, frametype, size, and other statistics for
every frame
(no)psnr
Print signal-to-noise ratio statistics.
NOTE: The ’Y’, ’U’, ’V’, and ’Avg’ PSNR fields in the summary
are not mathematically sound (they are simply the average of
per-frame PSNRs). They are kept only for comparison to the JM
reference codec. For all other purposes, please use either the
’Global’ PSNR, or the per-frame PSNRs printed by log=3.
(no)visualize
Enable x264 visualizations during encoding. If the x264 on your
system supports it, a new window will be opened during the
encoding process, in which x264 will attempt to present an
overview of how each frame gets encoded. Each block type on the
visualized movie will be colored as follows:
red/pink
intra block
blue
inter block
green
skip block
yellow
B-block
This feature can be considered experimental and subject to
change. In particular, it depends on x264 being compiled with
visualizations enabled. Note that as of writing this, x264
pauses after encoding and visualizing each frame, waiting for
the user to press a key, at which point the next frame will be
encoded.
MPEG muxer (-mpegopts)
The MPEG muxer can generate 5 types of streams, each of which has
reasonable default parameters that the user can override. Generally,
when generating MPEG files, it is advisable to disable MEncoder’s
frame-skip code (see -noskip, -mc as well as the harddup and softskip
video filters).
format=<mpeg1 | mpeg2 | xvcd | xsvcd | dvd>
stream format (default: mpeg2)
size=<up to 65535>
Pack size in bytes, do not change unless you know exactly what
you are doing (default: 2048).
muxrate=<int>
Nominal muxrate in kbit/s used in the pack headers (default:
1800 kb/s). Will be updated as necessary in the case of
’format=mpeg1’ or ’mpeg2’.
tsaf
Sets timestamps on all frames, if possible.
init_vpts=<100-700>
initial video pts, in milliseconds (default: 200)
init_apts=<100-700>
initial audio pts, in milliseconds (default: 200)
vdelay=<1-32760>
Initial video delay time, in milliseconds (default: 0), use it
if you want to delay video with respect to audio.
drop
When used with init_adelay the muxer drops the part of audio
that was anticipated.
vwidth, vheight=<1-4095>
Set the video width and height when video is MPEG-1/2.
vpswidth, vpsheight=<1-4095>
Set pan and scan video width and height when video is MPEG-2.
vaspect=<1 | 4/3 | 16/9 | 221/100>
Sets the aspect ratio for MPEG-1/2 video.
vbitrate=<int>
Sets the video bitrate in kbit/s for MPEG-1/2 video.
vframerate=<24000/1001 | 24 | 25 | 30000/1001 | 30 | 50 | 60000/1001 |
60 >
Sets the framerate for MPEG-1/2 video. This option will be
ignored if used with the telecine option.
telecine
Enables soft telecine mode: the muxer will trick the video
stream so as to make it look like encoded at 30000/1001 or 30
fps; it only works with MPEG-2 video when the output framerate,
eventually converted with -ofps, is either 24000/1001 or 24 fps.
Any other framerate is incompatible with this option.
FFmpeg libavformat muxers (-lavfopts) (also see -of lavf)
format=<container_format>
Override which container format to mux into (default: autodetect
from output file extension).
mpg
MPEG-1 systems and MPEG-2 PS
asf
Advanced Streaming Format
avi
Audio Video Interleave file
wav
Waveform Audio
swf
Macromedia Flash
flv
Macromedia Flash video files
rm
RealAudio and RealVideo
au
SUN AU format
nut
NUT open container format (experimental)
mov
QuickTime
mp4
MPEG-4 format
dv
Sony Digital Video container
ENVIRONMENT VARIABLES
There are a number of environment variables that can be used to control
the behavior of MPlayer and MEncoder.
MPLAYER_HOME
Directory where MPlayer looks for user settings.
libaf:
LADSPA_PATH
If LADSPA_PATH is set, it searches for the specified file. If
it is not set, you must supply a fully specified pathname.
FIXME: This is also mentioned in the ladspa section.
libmpdvdkit2:
DVDCSS_CACHE
Specify a directory in which to store title key values. This
will speed up descrambling of DVDs which are in the cache. The
DVDCSS_CACHE directory is created if it does not exist, and a
subdirectory is created named after the DVD’s title or
manufacturing date. If DVDCSS_CACHE is not set or is empty,
libdvdcss will use the default value which is "${HOME}/.dvdcss/"
under Unix and "C:\Documents and Settings\$USER\Application
Data\dvdcss\" under Win32. The special value "off" disables
caching.
DVDCSS_METHOD
Sets the authentication and decryption method that libdvdcss
will use to read scrambled discs. Can be one of title, key or
disc.
key
is the default method. libdvdcss will use a set of
calculated player keys to try and get the disc key.
This can fail if the drive does not recognize any of the
player keys.
disc
is a fallback method when key has failed. Instead of
using player keys, libdvdcss will crack the disc key
using a brute force algorithm. This process is CPU
intensive and requires 64 MB of memory to store
temporary data.
title
is the fallback when all other methods have failed. It
does not rely on a key exchange with the DVD drive, but
rather uses a crypto attack to guess the title key. On
rare cases this may fail because there is not enough
encrypted data on the disc to perform a statistical
attack, but in the other hand it is the only way to
decrypt a DVD stored on a hard disc, or a DVD with the
wrong region on an RPC2 drive.
DVDCSS_RAW_DEVICE
Specify the raw device to use. Exact usage will depend on your
operating system, the Linux utility to set up raw devices is
raw(8) for instance. Please note that on most operating
systems, using a raw device requires highly aligned buffers:
Linux requires a 2048 bytes alignment (which is the size of a
DVD sector).
DVDCSS_VERBOSE
Sets the libdvdcss verbosity level.
0 Outputs no messages at all.
1 Outputs error messages to stderr.
2 Outputs error messages and debug messages to stderr.
DVDREAD_NOKEYS
Skip retrieving all keys on startup. Currently disabled.
HOME FIXME: Document this.
libao2:
AO_SUN_DISABLE_SAMPLE_TIMING
FIXME: Document this.
AUDIODEV
FIXME: Document this.
AUDIOSERVER
Specifies the Network Audio System server to which the nas audio
output driver should connect and the transport that should be
used. If unset DISPLAY is used instead. The transport can be
one of tcp and unix. Syntax is tcp/<somehost>:<someport>,
<somehost>:<instancenumber> or [unix]:<instancenumber>. The NAS
base port is 8000 and <instancenumber> is added to that.
EXAMPLES:
AUDIOSERVER=somehost:0
Connect to NAS server on somehost using default port and
transport.
AUDIOSERVER=tcp/somehost:8000
Connect to NAS server on somehost listening on TCP port
8000.
AUDIOSERVER=(unix)?:0
Connect to NAS server instance 0 on localhost using unix
domain sockets.
DISPLAY
FIXME: Document this.
vidix:
VIDIX_CRT
FIXME: Document this.
osdep:
TERM FIXME: Document this.
libvo:
DISPLAY
FIXME: Document this.
FRAMEBUFFER
FIXME: Document this.
HOME FIXME: Document this.
libmpdemux:
HOME FIXME: Document this.
HOMEPATH
FIXME: Document this.
http_proxy
FIXME: Document this.
LOGNAME
FIXME: Document this.
USERPROFILE
FIXME: Document this.
libmpcodecs:
XANIM_MOD_DIR
FIXME: Document this.
GUI:
CHARSET
FIXME: Document this.
DISPLAY
FIXME: Document this.
HOME FIXME: Document this.
libavformat:
AUDIO_FLIP_LEFT
FIXME: Document this.
BKTR_DEV
FIXME: Document this.
BKTR_FORMAT
FIXME: Document this.
BKTR_FREQUENCY
FIXME: Document this.
http_proxy
FIXME: Document this.
no_proxy
FIXME: Document this.
FILES
/usr/local/etc/mplayer/mplayer.conf
system-wide settings
~/.mplayer/config
user settings
~/.mplayer/input.conf
input bindings (see ’-input keylist’ for the full list)
~/.mplayer/gui.conf
GUI configuration file
~/.mplayer/gui.pl
GUI playlist
~/.mplayer/font/
font directory (There must be a font.desc file and files with
.RAW extension.)
~/.mplayer/DVDkeys/
cached CSS keys
Assuming that /path/to/movie.avi is played, MPlayer searches for sub
files
in this order:
/path/to/movie.sub
~/.mplayer/sub/movie.sub
~/.mplayer/default.sub
EXAMPLES OF MPLAYER USAGE
Quickstart DVD playing:
mplayer dvd://1
Play in Japanese with English subtitles:
mplayer dvd://1 -alang ja -slang en
Play only chapters 5, 6, 7:
mplayer dvd://1 -chapter 5-7
Play only titles 5, 6, 7:
mplayer dvd://5-7
Play a multiangle DVD:
mplayer dvd://1 -dvdangle 2
Play from a different DVD device:
mplayer dvd://1 -dvd-device /dev/dvd2
Play DVD video from a directory with VOB files:
mplayer dvd://1 -dvd-device /path/to/directory/
Copy a DVD title to hard disk, saving to file title1.vob :
mplayer dvd://1 -dumpstream -dumpfile title1.vob
Stream from HTTP:
mplayer http://mplayer.hq/example.avi
Stream using RTSP:
mplayer rtsp://server.example.com/streamName
Convert subtitles to MPsub format:
mplayer dummy.avi -sub source.sub -dumpmpsub
Convert subtitles to MPsub format without watching the movie:
mplayer /dev/zero -rawvideo pal:fps=xx -demuxer rawvideo -vc null -vo null -noframedrop -benchmark -sub source.sub -dumpmpsub
input from standard V4L:
mplayer tv:// -tv driver=v4l:width=640:height=480:outfmt=i420 -vc rawi420 -vo xv
Playback on Zoran cards (old style, deprecated):
mplayer -vo zr -vf scale=352:288 file.avi
Playback on Zoran cards (new style):
mplayer -vo zr2 -vf scale=352:288,zrmjpeg file.avi
Play a 6-channel AAC file with only two speakers:
mplayer -rawaudio format=0xff -demuxer rawaudio -af pan=2:.32:.32:.39:.06:.06:.39:.17:-.17:-.17:.17:.33:.33 adts_he-aac160_51.aac
You might want to play a bit with the pan values (e.g multiply with a
value) to increase volume or avoid clipping.
EXAMPLES OF MENCODER USAGE
Encode DVD title #2, only selected chapters:
mencoder dvd://2 -chapter 10-15 -o title2.avi -oac copy -ovc lavc -lavcopts vcodec=mpeg4
Encode DVD title #2, resizing to 640x480:
mencoder dvd://2 -vf scale=640:480 -o title2.avi -oac copy -ovc lavc -lavcopts vcodec=mpeg4
Encode DVD title #2, resizing to 512xHHH (keep aspect ratio):
mencoder dvd://2 -vf scale -zoom -xy 512 -o title2.avi -oac copy -ovc lavc -lavcopts vcodec=mpeg4
The same, but with bitrate set to 1800kbit and optimized macroblocks:
mencoder dvd://2 -o title2.avi -oac copy -ovc lavc -lavcopts vcodec=mpeg4:mbd=1:vbitrate=1800
The same, but with MJPEG compression:
mencoder dvd://2 -o title2.avi -oac copy -ovc lavc -lavcopts vcodec=mjpeg:mbd=1:vbitrate=1800
Encode all *.jpg files in the current directory:
mencoder "mf://*.jpg" -mf fps=25 -o output.avi -ovc lavc -lavcopts vcodec=mpeg4
Encode from a tuner (specify a format with -vf format):
mencoder -tv driver=v4l:width=640:height=480 tv:// -o tv.avi -ovc raw
Encode from a pipe:
rar p test-SVCD.rar | mencoder -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=800 -ofps 24 -
BUGS
Don’t panic. If you find one, report it to us, but please make sure
you have read all of the documentation first. Also look out for
smileys. :) Many bugs are the result of incorrect setup or parameter
usage. The bug reporting section of the documentation (DOCS/HTML/en/
bugreports.html) explains how to create useful bug reports.
AUTHORS
MPlayer was initially written by Arpad Gereoffy. See the AUTHORS file
for a list of some of the many other contributors.
MPlayer is (C) 2000-2006 The MPlayer Team
This man page was written mainly by Gabucino, Jonas Jermann and Diego
Biurrun. It is maintained by Diego Biurrun. Please send mails about
it to the MPlayer-DOCS mailing list. Translation specific mails belong
on the MPlayer-translations mailing list.