Difference between revisions of "VLC-0-8-6 command-line help"
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-vvv "Verbose verbose verbose". Verbose output | -vvv "Verbose verbose verbose". Verbose output | ||
| − | Here's the output of ''vlc --longhelp --advanced --help-verbose'' of the version 0.8. | + | Here's the output of ''vlc --longhelp --advanced --help-verbose'' of the version 0.8.6i in Windows. If you are looking for 0.9.0 help, go [[VLC_command-line_help]]. |
Revision as of 16:36, 16 July 2008
- See also Command line, Console interfaces
As you may have noticed, running the command
vlc --help
on some command prompts is not very useful due to to the non-scrollable pop-up window that opened.
If you look for help, on a particular module, use
vlc -p module --advanced
Undocumented option:
-vvv "Verbose verbose verbose". Verbose output
Here's the output of vlc --longhelp --advanced --help-verbose of the version 0.8.6i in Windows. If you are looking for 0.9.0 help, go VLC_command-line_help.
Usage: vlc [options] [stream] ...
You can specify multiple streams on the commandline. They will be enqueued in the playlist.
The first item specified will be played first.
Options-styles:
--option A global option that is set for the duration of the program.
-option A single letter version of a global --option.
:option An option that only applies to the stream directly before it
and that overrides previous settings.
Stream MRL syntax:
[[access][/demux]://]URL[@[title][:chapter][-[title][:chapter]]] [:option=value ...]
Many of the global --options can also be used as MRL specific :options.
Multiple :option=value pairs can be specified.
URL syntax:
[file://]filename Plain media file
http://ip:port/file HTTP URL
ftp://ip:port/file FTP URL
mms://ip:port/file MMS URL
screen:// Screen capture
[dvd://][device][@raw_device] DVD device
[vcd://][device] VCD device
[cdda://][device] Audio CD device
udp:[[<source address>]@[<bind address>][:<bind port>]]
UDP stream sent by a streaming server
vlc:pause:<seconds> Special item to pause the playlist for a certain time
vlc:quit Special item to quit VLC
Help options
-h, --help print help for VLC (can be combined with
--advanced)
-H, --longhelp print help for VLC and all its modules (can
be combined with --advanced)
--advanced print help for the advanced options
--help-verbose ask for extra verbosity when displaying help
-l, --list print a list of available modules
-p, --module <string> print help on a specific module (can be
combined with --advanced)
--save-config save the current command line options in the
config
--reset-config reset the current config to the default values
--config <string> use alternate config file
--reset-plugins-cache resets the current plugins cache
--version print version information
Audio
--audio, --no-audio Enable audio (default enabled)
You can completely disable the audio output.
The audio decoding stage will not take place,
thus saving some processing power. (default
enabled)
--volume <integer> Default audio volume
You can set the default audio output volume
here, in a range from 0 to 1024.
--spdif, --no-spdif Use S/PDIF when available (default disabled)
S/PDIF can be used by default when your
hardware supports it as well as the audio
stream being played. (default disabled)
--force-dolby-surround {0 (Auto), 1 (On), 2 (Off)}
Force detection of Dolby Surround
Use this when you know your stream is (or is
not) encoded with Dolby Surround but fails to
be detected as such. Even if the stream is
not actually encoded with Dolby Surround,
turning on this option might enhance your
experience, especially when combined with the
Headphone Channel Mixer.
--audio-filter <string> Audio filters
This adds audio post processing filters, to
modify the sound rendering.
--audio-visual <string> Audio visualizations
This adds visualization modules (spectrum
analyzer, etc.).
Video
-f, --fullscreen, --no-fullscreen
Fullscreen video output (default disabled)
Start video in fullscreen mode (default
disabled)
--overlay, --no-overlay Overlay video output (default disabled)
Overlay is the hardware acceleration
capability of your video card (ability to
render video directly). VLC will try to use
it by default. (default disabled)
--video-on-top, --no-video-on-top
Always on top (default disabled)
Always place the video window on top of other
windows. (default disabled)
--snapshot-path <string> Video snapshot directory (or filename)
Directory where the video snapshots will be
stored.
--snapshot-prefix <string> Video snapshot file prefix
Video snapshot file prefix
--snapshot-format {png,jpg}
Video snapshot format
Image format which will be used to store the
video snapshots
--snapshot-preview, --no-snapshot-preview
Display video snapshot preview (default
enabled)
Display the snapshot preview in the screen's
top-left corner. (default enabled)
--snapshot-sequential, --no-snapshot-sequential
Use sequential numbers instead of timestamps
(default disabled)
Use sequential numbers instead of timestamps
for snapshot numbering (default disabled)
--crop <string> Video cropping
This forces the cropping of the source video.
Accepted formats are x:y (4:3, 16:9, etc.)
expressing the global image aspect.
--custom-crop-ratios <string>
Custom crop ratios list
Comma seperated list of crop ratios which
will be added in the interface's crop ratios
list.
--aspect-ratio <string> Source aspect ratio
This forces the source aspect ratio. For
instance, some DVDs claim to be 16:9 while
they are actually 4:3. This can also be used
as a hint for VLC when a movie does not have
aspect ratio information. Accepted formats
are x:y (4:3, 16:9, etc.) expressing the
global image aspect, or a float value (1.25,
1.3333, etc.) expressing pixel squareness.
--custom-aspect-ratios <string>
Custom aspect ratios list
Comma seperated list of aspect ratios which
will be added in the interface's aspect ratio
list.
--vout-filter <string> Video filter module
This adds post-processing filters to enhance
the picture quality, for instance
deinterlacing, or to clone or distort the
video window.
Subpictures
--osd, --no-osd On Screen Display (default enabled)
VLC can display messages on the video. This
is called OSD (On Screen Display). (default
enabled)
--sub-file <string> Use subtitle file
Load this subtitle file. To be used when
autodetect cannot detect your subtitle file.
--sub-autodetect-file, --no-sub-autodetect-file
Autodetect subtitle files (default enabled)
Automatically detect a subtitle file, if no
subtitle filename is specified (based on the
filename of the movie). (default enabled)
--sub-filter <string> Subpictures filter module
This adds so-called "subpicture filters".
These filters overlay some images or text
over the video (like a logo, arbitraty
text...).
--audio-language <string> Audio language
Language of the audio track you want to use
(comma separated, two or three letter country
code).
--sub-language <string> Subtitle language
Language of the subtitle track you want to
use (comma separated, two or tree letter
country code).
--input-repeat <integer> Input repetitions
Number of time the same input will be repeated
--dvd <string> DVD device
This is the default DVD drive (or file) to
use. Don't forget the colon after the drive
letter (eg. D:)
--vcd <string> VCD device
This is the default VCD device to use.
--cd-audio <string> Audio CD device
This is the default Audio CD device to use.
--server-port <integer> UDP port
This is the default port used for UDP
streams. Default is 1234.
-6, --ipv6, --no-ipv6 Force IPv6 (default disabled)
IPv6 will be used by default for all
connections. (default disabled)
-4, --ipv4, --no-ipv4 Force IPv4 (default disabled)
IPv4 will be used by default for all
connections. (default disabled)
Input
--access-filter <string> Access filter module
Access filters are used to modify the stream
that is being read. This is used for instance
for timeshifting.
--high-priority, --no-high-priority
Increase the priority of the process (default
disabled)
Increasing the priority of the process will
very likely improve your playing experience
as it allows VLC not to be disturbed by other
applications that could otherwise take too
much processor time. However be advised that
in certain circumstances (bugs) VLC could
take all the processor time and render the
whole system unresponsive which might require
a reboot of your machine. (default disabled)
Playlist
-Z, --random, --no-random Play files randomly forever (default disabled)
VLC will randomly play files in the playlist
until interrupted. (default disabled)
-L, --loop, --no-loop Repeat all (default disabled)
VLC will keep playing the playlist
indefinitely. (default disabled)
-R, --repeat, --no-repeat Repeat current item (default disabled)
VLC will keep playing the current playlist
item. (default disabled)
--play-and-stop, --no-play-and-stop
Play and stop (default disabled)
Stop the playlist after each played playlist
item. (default disabled)
--open <string> Default stream
This stream will always be opened at VLC
startup.
--auto-preparse, --no-auto-preparse
Automatically preparse files (default enabled)
Automatically preparse files added to the
playlist (to retrieve some metadata).
(default enabled)
-S, --services-discovery <string>
Services discovery modules
Specifies the services discovery modules to
load, separated by semi-colons. Typical
values are sap, hal, ...
-v, --verbose <integer> Verbosity (0,1,2)
This is the verbosity level (0=only errors
and standard messages, 1=warnings, 2=debug).
--language {auto,en,en_GB,ar,ca,cs,da,de,es,fa,fr,gl,he,hu,it,ja,ka,ko,ms,ne,nl,oc,pl,pt_BR,ro,ru,sk,sl,sr,sv,th,tr,zh_CN,zh_TW}
Language
You can manually select a language for the
interface. The system language is
auto-detected if "auto" is specified here.
--advanced, --no-advanced Show advanced options (default enabled)
When this is enabled, the preferences and/or
interfaces will show all available options,
including those that most users should never
touch. (default enabled)
--interact, --no-interact Interface interaction (default enabled)
When this is enabled, the interface will show
a dialog box each time some user input is
required. (default enabled)
--show-intf, --no-show-intf
Show interface with mouse (default disabled)
When this is enabled, the interface is shown
when you move the mouse to the edge of the
screen in fullscreen mode. (default disabled)
-I, --intf <string> Interface module
This is the main interface used by VLC. The
default behavior is to automatically select
the best module available.
--extraintf <string> Extra interface modules
You can select "additional interfaces" for
VLC. They will be launched in the background
in addition to the default interface. Use a
comma separated list of interface modules.
(common values are "rc" (remote control),
"http", "gestures" ...)
--control <string> Control interfaces
You can select control interfaces for VLC.
Hot keys
--key-fullscreen <integer> Fullscreen
Select the hotkey to use to swap fullscreen
state.
--key-play-pause <integer> Play/Pause
Select the hotkey to use to swap paused state.
--key-faster <integer> Faster
Select the hotkey to use for fast forward
playback.
--key-slower <integer> Slower
Select the hotkey to use for slow motion
playback.
--key-next <integer> Next
Select the hotkey to use to skip to the next
item in the playlist.
--key-prev <integer> Previous
Select the hotkey to use to skip to the
previous item in the playlist.
--key-stop <integer> Stop
Select the hotkey to stop playback.
--key-jump-extrashort <integer>
Very short backwards jump
Select the hotkey to make a very short
backwards jump.
--key-jump+extrashort <integer>
Very short forward jump
Select the hotkey to make a very short
forward jump.
--key-jump-short <integer> Short backwards jump
Select the hotkey to make a short backwards
jump.
--key-jump+short <integer> Short forward jump
Select the hotkey to make a short forward
jump.
--key-jump-medium <integer>
Medium backwards jump
Select the hotkey to make a medium backwards
jump.
--key-jump+medium <integer>
Medium forward jump
Select the hotkey to make a medium forward
jump.
--key-jump-long <integer> Long backwards jump
Select the hotkey to make a long backwards
jump.
--key-jump+long <integer> Long forward jump
Select the hotkey to make a long forward jump.
--key-quit <integer> Quit
Select the hotkey to quit the application.
--key-vol-up <integer> Volume up
Select the key to increase audio volume.
--key-vol-down <integer> Volume down
Select the key to decrease audio volume.
--key-vol-mute <integer> Mute
Select the key to mute audio.
--key-audio-track <integer>
Cycle audio track
Cycle through the available audio
tracks(languages).
--key-subtitle-track <integer>
Cycle subtitle track
Cycle through the available subtitle tracks.
--key-aspect-ratio <integer>
Cycle source aspect ratio
Cycle through a predefined list of source
aspect ratios.
--key-crop <integer> Cycle video crop
Cycle through a predefined list of crop
formats.
--key-deinterlace <integer>
Cycle deinterlace modes
Cycle through deinterlace modes.
--extrashort-jump-size <integer>
Very short jump length
Very short jump length, in seconds.
--short-jump-size <integer>
Short jump length
Short jump length, in seconds.
--medium-jump-size <integer>
Medium jump length
Medium jump length, in seconds.
--long-jump-size <integer> Long jump length
Long jump length, in seconds.
--bookmark1 <string> Playlist bookmark 1
This allows you to define playlist bookmarks.
--bookmark2 <string> Playlist bookmark 2
This allows you to define playlist bookmarks.
--bookmark3 <string> Playlist bookmark 3
This allows you to define playlist bookmarks.
--bookmark4 <string> Playlist bookmark 4
This allows you to define playlist bookmarks.
--bookmark5 <string> Playlist bookmark 5
This allows you to define playlist bookmarks.
--bookmark6 <string> Playlist bookmark 6
This allows you to define playlist bookmarks.
--bookmark7 <string> Playlist bookmark 7
This allows you to define playlist bookmarks.
--bookmark8 <string> Playlist bookmark 8
This allows you to define playlist bookmarks.
--bookmark9 <string> Playlist bookmark 9
This allows you to define playlist bookmarks.
--bookmark10 <string> Playlist bookmark 10
This allows you to define playlist bookmarks.
ATSC A/52 (AC-3) audio decoder
--a52-dynrng, --no-a52-dynrng
A/52 dynamic range compression (default
enabled)
Dynamic range compression makes the loud
sounds softer, and the soft sounds louder, so
you can more easily listen to the stream in a
noisy environment without disturbing anyone.
If you disable the dynamic range compression
the playback will be more adapted to a movie
theater or a listening room. (default enabled)
Standard filesystem directory input
--recursive {none,collapse,expand}
Subdirectory behavior
Select whether subdirectories must be
expanded.
none: subdirectories do not appear
in the playlist.
collapse: subdirectories
appear but are expanded on first
play.
expand: all subdirectories are
expanded.
--ignore-filetypes <string>
Ignored extensions
Files with these extensions will not be added
to playlist when opening a directory.
This is
useful if you add directories that contain
playlist files for instance. Use a
comma-separated list of extensions.
Dump
--dump-force, --no-dump-force
Force use of dump module (default disabled)
Activate the dump module even for media with
fast seeking. (default disabled)
--dump-margin <integer> Maximum size of temporary file (Mb)
The dump module will abort dumping of the
media if more than this much megabyte were
performed.
Timeshift
--timeshift-dir <string> Timeshift directory
Directory used to store the timeshift
temporary files.
--timeshift-force, --no-timeshift-force
Force use of the timeshift module (default
disabled)
Force use of the timeshift module even if the
access declares that it can control pace or
pause. (default disabled)
FTP input
--ftp-user <string> FTP user name
User name that will be used for the
connection.
--ftp-pwd <string> FTP password
Password that will be used for the connection.
--ftp-account <string> FTP account
Account that will be used for the connection.
HTTP input
--http-proxy <string> HTTP proxy
HTTP proxy to be usesd It must be of the form
http://[user[:pass]@]myproxy.mydomain:myport/
; if empty, the http_proxy environment
variable will be tried.
Microsoft Media Server (MMS) input
--mms-maxbitrate <integer> Maximum bitrate
Select the stream with the maximum bitrate
under that limit.
IceCAST output
--sout-shout-name <string> Stream name
Name to give to this stream/channel on the
icecast server.
--sout-shout-description <string>
Stream description
Description of the stream content or
information about your channel.
UDP stream output
SMB input
--smb-user <string> SMB user name
User name that will be used for the
connection.
--smb-pwd <string> SMB password
Password that will be used for the connection.
--smb-domain <string> SMB domain
Domain/Workgroup that will be used for the
connection.
Image properties filter
--contrast <float> Image contrast (0-2)
Set the image contrast, between 0 and 2.
Defaults to 1.
--brightness <float> Image brightness (0-2)
Set the image brightness, between 0 and 2.
Defaults to 1.
--hue <integer> Image hue (0-360)
Set the image hue, between 0 and 360.
Defaults to 0.
--saturation <float> Image saturation (0-3)
Set the image saturation, between 0 and 3.
Defaults to 1.
--gamma <float> Image gamma (0-10)
Set the image gamma, between 0.01 and 10.
Defaults to 1.
--brightness-threshold, --no-brightness-threshold
Brightness threshold (default disabled)
When this mode is enabled, pixels will be
shown as black or white. The threshold value
will be the brighness defined below. (default
disabled)
File audio output
--audiofile-file <string> Output file
File to which the audio samples will be
written to.
AVI demuxer
--avi-index {0 (Ask), 1 (Always fix), 2 (Never fix)}
Force index creation
Recreate a index for the AVI file. Use this
if your AVI file is damaged or incomplete
(not seekable).
Clone video filter
--clone-count <integer> Number of clones
Number of video windows in which to clone the
video.
Crop video filter
--crop-geometry <string> Crop geometry (pixels)
Set the geometry of the zone to crop. This is
set as <width> x <height> + <left offset> +
<top offset>.
--autocrop, --no-autocrop Automatic cropping (default disabled)
Automatic black border cropping. (default
disabled)
Deinterlacing video filter
--deinterlace-mode {discard,blend,mean,bob,linear,x}
Deinterlace mode
Deinterlace method to use for local playback.
--sout-deinterlace-mode {discard,blend,mean,bob,linear,x}
Streaming deinterlace mode
Deinterlace method to use for streaming.
File dumpper
--demuxdump-file <string> Dump filename
Name of the file to which the raw stream will
be dumped.
--demuxdump-append, --no-demuxdump-append
Append to existing file (default disabled)
If the file already exists, it will not be
overwritten. (default disabled)
Distort video filter
--distort-mode {wave,ripple,gradient,edge,hough,psychedelic}
Distort mode
Distort mode, one of "wave", "ripple",
"gradient", "edge", "hough" and "psychedelic".
--distort-gradient-type <integer>
Gradient image type
Gradient image type (0 or 1). 0 will turn the
image to white while 1 will keep colors.
--distort-cartoon, --no-distort-cartoon
Apply cartoon effect (default enabled)
Apply cartoon effect. It is only used by
"gradient" and "edge". (default enabled)
DirectShow input
--dshow-vdev {,none} Video device name
Name of the video device that will be used by
the DirectShow plugin. If you don't specify
anything, the default device will be used.
--dshow-adev {,none} Audio device name
Name of the audio device that will be used by
the DirectShow plugin. If you don't specify
anything, the default device will be used.
You can specify a standard size (cif, d1,
...) or <width>x<height>
--dshow-size <string> Video size
Size of the video that will be displayed by
the DirectShow plugin. If you don't specify
anything the default size for your device
will be used.
DTS Coherent Acoustics audio decoder
--dts-dynrng, --no-dts-dynrng
DTS dynamic range compression (default
enabled)
Dynamic range compression makes the loud
sounds softer, and the soft sounds louder, so
you can more easily listen to the stream in a
noisy environment without disturbing anyone.
If you disable the dynamic range compression
the playback will be more adapted to a movie
theater or a listening room. (default enabled)
Dummy interface function
--dummy-quiet, --no-dummy-quiet
Do not open a DOS command box interface
(default disabled)
By default the dummy interface plugin will
start a DOS command box. Enabling the quiet
mode will not bring this command box but can
also be pretty annoying when you want to stop
VLC and no video window is open. (default
disabled)
DVB subtitles decoder
--dvbsub-x <integer> Decoding X coordinate
X coordinate of the rendered subtitle
--dvbsub-y <integer> Decoding Y coordinate
Y coordinate of the rendered subtitle
--sout-dvbsub-x <integer> Encoding X coordinate
X coordinate of the encoded subtitle
--sout-dvbsub-y <integer> Encoding Y coordinate
Y coordinate of the encoded subtitle
DVDnav Input
--dvdnav-angle <integer> DVD angle
Default DVD angle.
--dvdnav-menu, --no-dvdnav-menu
Start directly in menu (default enabled)
Start the DVD directly in the main menu. This
will try to skip all the useless warning
introductions. (default enabled)
DVDRead Input (DVD without menu support)
--dvdread-angle <integer> DVD angle
Default DVD angle.
Equalizer with 10 bands
--equalizer-preset {flat,classical,club,dance,fullbass,fullbasstreble,fulltreble,headphones,largehall,live,party,pop,reggae,rock,ska,soft,softrock,techno}
Equalizer preset
Preset to use for the equalizer.
Fake video decoder
--fake-file <string> Image file
Path of the image file for fake input.
--fake-deinterlace, --no-fake-deinterlace
Deinterlace video (default disabled)
Deinterlace the image after loading it.
(default disabled)
--fake-deinterlace-module {deinterlace,ffmpeg-deinterlace}
Deinterlace module
Deinterlace module to use.
FFmpeg audio/video decoder/encoder ((MS)MPEG4,SVQ1,H263,WMV,WMA)
--ffmpeg-workaround-bugs <integer>
Workaround bugs
Try to fix some bugs:
1 autodetect
2 old
msmpeg4
4 xvid interlaced
8 ump4
16 no
padding
32 ac vlc
64 Qpel chroma.
This must
be the sum of the values. For example, to fix
"ac vlc" and "ump4", enter 40.
--ffmpeg-hurry-up, --no-ffmpeg-hurry-up
Hurry up (default disabled)
The decoder can partially decode or skip
frame(s) when there is not enough time. It's
useful with low CPU power but it can produce
distorted pictures. (default disabled)
--ffmpeg-pp-q <integer> Post processing quality
Quality of post processing. Valid range is 0
to 6
Higher levels require considerable more
CPU power, but produce better looking
pictures.
--sout-ffmpeg-hq {rd,bits,simple}
Quality level
Quality level for the encoding of motions
vectors (this can slow down the encoding very
much).
--sout-ffmpeg-keyint <integer>
Ratio of key frames
Number of frames that will be coded for one
key frame.
--sout-ffmpeg-bframes <integer>
Ratio of B frames
Number of B frames that will be coded between
two reference frames.
--sout-ffmpeg-hurry-up, --no-sout-ffmpeg-hurry-up
Hurry up (default disabled)
The encoder can make on-the-fly quality
tradeoffs if your CPU can't keep up with the
encoding rate. It will disable trellis
quantization, then the rate distortion of
motion vectors (hq), and raise the noise
reduction threshold to ease the encoder's
task. (default disabled)
Freetype2 font renderer
--freetype-font <string> Font
Filename for the font you want to use
--freetype-color {0 (Black), 8421504 (Gray), 12632256 (Silver), 16777215 (White), 8388608 (Maroon), 16711680 (Red), 16711935 (Fuchsia), 16776960 (Yellow), 8421376 (Olive), 32768 (Green), 32896 (Teal), 65280 (Lime), 8388736 (Purple), 128 (Navy), 255 (Blue), 65535 (Aqua)}
Text default color
The color of the text that will be rendered
on the video. This must be an hexadecimal
(like HTML colors). The first two chars are
for red, then green, then blue. #000000 =
black, #FF0000 = red, #00FF00 = green,
#FFFF00 = yellow (red + green), #FFFFFF =
white
--freetype-rel-fontsize {20 (Smaller), 18 (Small), 16 (Normal), 12 (Large), 6 (Larger)}
Relative font size
This is the relative default size of the
fonts that will be rendered on the video. If
absolute font size is set, relative size will
be overriden.
--freetype-effect {1 (Background), 2 (Outline), 3 (Fat Outline)}
Font Effect
It is possible to apply effects to the
rendered text to improve its readability.
Mouse gestures control interface
--gestures-button {left,middle,right}
Trigger button
Trigger button for mouse gestures.
GnuTLS TLS encryption layer
--tls-check-cert, --no-tls-check-cert
Check TLS/SSL server certificate validity
(default enabled)
This ensures that the server certificate is
valid (i.e. signed by an approved
Certification Authority). (default enabled)
--tls-check-hostname, --no-tls-check-hostname
Check TLS/SSL server hostname in certificate
(default enabled)
This ensures that the server hostname in
certificate matches the requested host name.
(default enabled)
Goom effect
--goom-width <integer> Goom display width
This allows you to set the resolution of the
Goom display (bigger resolution will be
prettier but more CPU intensive).
--goom-height <integer> Goom display height
This allows you to set the resolution of the
Goom display (bigger resolution will be
prettier but more CPU intensive).
--goom-speed <integer> Goom animation speed
This allows you to set the animation speed
(between 1 and 10, defaults to 6).
Growl Notification Plugin
--growl-server <string> Growl server
This is the host to which Growl notifications
will be sent. By default, notifications are
sent locally.
--growl-password <string> Growl password
Growl password on the server.
Headphone virtual spatialization effect
--headphone-dim <integer> Characteristic dimension
Distance between front left speaker and
listener in meters.
Image video output
--image-out-format {png,jpeg}
Image format
Format of the output images (png or jpg).
--image-out-ratio <integer>
Recording ratio
Ratio of images to record. 3 means that one
image out of three is recorded.
--image-out-prefix <string>
Filename prefix
Prefix of the output images filenames. Output
filenames will have the "prefixNUMBER.format"
form.
--image-out-replace, --no-image-out-replace
Always write to the same file (default
disabled)
Always write to the same file instead of
creating one file per image. In this case,
the number is not appended to the filename.
(default disabled)
File logging
--logfile <string> Log filename
Specify the log filename.
--logmode {text,html} Log format
Specify the log format. Available choices are
"text" (default) and "html".
Logo video filter
--logo-file <string> Logo filenames
Full path of the image files to use. Format
is <image>[,<delay in ms>[,<alpha>]][;<image>[
,<delay>[,<alpha>]]][;...]. If you only have
one file, simply enter its filename.
--logo-transparency <integer>
Transparency of the logo
Logo transparency value (from 0 for full
transparency to 255 for full opacity).
--logo-position {0 (Center), 1 (Left), 2 (Right), 4 (Top), 8 (Bottom), 5 (Top-Left), 6 (Top-Right), 9 (Bottom-Left), 10 (Bottom-Right)}
Logo position
Enforce the logo position on the video
(0=center, 1=left, 2=right, 4=top, 8=bottom,
you can also use combinations of these
values, eg 6 = top-right).
Marquee display
--marq-marquee <string> Text
Marquee text to display.
--marq-position <integer> Marquee position
You can enforce the marquee position on the
video (0=center, 1=left, 2=right, 4=top,
8=bottom, you can also use combinations of
these values, eg 6 = top-right).
--marq-opacity <integer> Opacity
Opacity (inverse of transparency) of
overlayed text. 0 = transparent, 255 =
totally opaque.
--marq-color {-268435456 (Default), 0 (Black), 8421504 (Gray), 12632256 (Silver), 16777215 (White), 8388608 (Maroon), 16711680 (Red), 16711935 (Fuchsia), 16776960 (Yellow), 8421376 (Olive), 32768 (Green), 32896 (Teal), 65280 (Lime), 8388736 (Purple), 128 (Navy), 255 (Blue), 65535 (Aqua)}
Color
Color of the text that will be rendered on
the video. This must be an hexadecimal (like
HTML colors). The first two chars are for
red, then green, then blue. #000000 = black,
#FF0000 = red, #00FF00 = green, #FFFF00 =
yellow (red + green), #FFFFFF = white
--marq-size <integer> Font size, pixels
Font size, in pixels. Default is -1 (use
default font size).
--marq-timeout <integer> Timeout
Number of milliseconds the marquee must
remain displayed. Default value is 0 (remains
forever).
M-JPEG camera demuxer
--mjpeg-fps <float> Frames per Second
This is the desired frame rate when playing
MJPEG from a file. Use 0 (this is the default
value) for a live stream (from a camera).
MOD demuxer (libmodplug)
--mod-noisereduction, --no-mod-noisereduction
Noise reduction (default enabled)
Enable noise reduction algorithm (default
enabled)
--mod-reverb, --no-mod-reverb
Reverb (default disabled)
Enable reverberation (default disabled)
--mod-megabass, --no-mod-megabass
Mega bass (default disabled)
Enable megabass mode (default disabled)
--mod-surround, --no-mod-surround
Surround (default disabled)
Surround (default disabled)
Mosaic video sub filter
--mosaic-alpha <integer> Transparency
Transparency of the mosaic foreground
pictures. 0 means transparent, 255 opaque
(default).
--mosaic-height <integer> Height
Total height of the mosaic, in pixels.
--mosaic-width <integer> Width
Total width of the mosaic, in pixels.
--mosaic-position {0 (auto), 1 (fixed)}
Positioning method
Positioning method for the mosaic. auto:
automatically choose the best number of rows
and columns. fixed: use the user-defined
number of rows and columns.
--mosaic-rows <integer> Number of rows
Number of image rows in the mosaic (only used
if positionning method is set to "fixed".
--mosaic-cols <integer> Number of columns
Number of image columns in the mosaic (only
used if positionning method is set to "fixed".
--mosaic-keep-aspect-ratio, --no-mosaic-keep-aspect-ratio
Keep aspect ratio (default disabled)
Keep the original aspect ratio when resizing
mosaic elements. (default disabled)
--mosaic-keep-picture, --no-mosaic-keep-picture
Keep original size (default disabled)
Keep the original size of mosaic elements.
(default disabled)
--mosaic-order <string> Elements order
You can enforce the order of the elements on
the mosaic. You must give a comma-separated
list of picture ID(s).These IDs are assigned
in the "mosaic-bridge" module.
--mosaic-delay <integer> Delay
Pictures coming from the mosaic elements will
be delayed according to this value (in
milliseconds). For high values you will need
to raise caching at input.
--mosaic-bs, --no-mosaic-bs
Bluescreen (default disabled)
This effect, also known as "greenscreen" or
"chroma key" blends the "blue parts" of the
foreground images of the mosaic on the
background (like wheather forecast
presenters). You can choose the "key" color
for blending (blue by default). (default
disabled)
--mosaic-bsu <integer> Bluescreen U value
"U" value for the bluescreen key color (in
YUV values). From 0 to 255. Defaults to 120
for blue.
--mosaic-bsv <integer> Bluescreen V value
"V" value for the bluescreen key color (in
YUV values). From 0 to 255. Defaults to 90
for blue.
--mosaic-bsut <integer> Bluescreen U tolerance
Tolerance of the bluescreen blender on color
variations for the U plane. A value between
10 and 20 seems sensible.
--mosaic-bsvt <integer> Bluescreen V tolerance
Tolerance of the bluescreen blender on color
variations for the V plane. A value between
10 and 20 seems sensible.
Motion blur filter
--blur-factor <integer> Blur factor (1-127)
The degree of blurring from 1 to 127.
Motion detect video filter
--motiondetect-history <integer>
History parameter
The umber of frames used for detection.
--motiondetect-description <string>
Description file
A file containing a simple playlist
MusePack demuxer
--mpc-replaygain-type {0 (None), 1 (Title), 2 (Album)}
Replay Gain type
Musepack can have a title-specific replay
gain (volume control) or an album-specific
one. Choose which type you want to use
MSN Now-Playing
--msn-format <string> MSN Title format string
Format of the string to send to MSN {0}
Artist, {1} Title, {2} Album. Defaults to
"Artist - Title" ({0} - {1}).
OpenGL video output
--opengl-effect {none,cube,transparent-cube}
Effect
Several visual OpenGL effects are available.
On Screen Display menu
--osdmenu-x <integer> X coordinate
You can move the OSD menu by left-clicking on
it.
--osdmenu-y <integer> Y coordinate
You can move the OSD menu by left-clicking on
it.
--osdmenu-position {0 (Center), 1 (Left), 2 (Right), 4 (Top), 8 (Bottom), 5 (Top-Left), 6 (Top-Right), 9 (Bottom-Left), 10 (Bottom-Right)}
Menu position
You can enforce the OSD menu position on the
video (0=center, 1=left, 2=right, 4=top,
8=bottom, you can also use combinations of
these values, eg. 6 = top-right).
--osdmenu-file <string> Configuration file
Configuration file for the OSD Menu
--osdmenu-file-path <string>
Path to OSD menu images
Path to the OSD menu images. This will
override the path defined in the OSD
configuration file.
--osdmenu-timeout <integer>
Menu timeout
OSD menu pictures get a default timeout of 15
seconds added to their remaining time. This
will ensure that they are at least the
specified time visible.
Parametric Equalizer
--param-eq-lowf <float> Low freq (Hz)
--param-eq-lowgain <float> Low freq gain (Db)
--param-eq-highf <float> High freq (Hz)
--param-eq-highgain <float>
High freq gain (Db)
--param-eq-f1 <float> Freq 1 (Hz)
--param-eq-gain1 <float> Freq 1 gain (Db)
--param-eq-q1 <float> Freq 1 Q
--param-eq-f2 <float> Freq 2 (Hz)
--param-eq-gain2 <float> Freq 2 gain (Db)
--param-eq-q2 <float> Freq 2 Q
--param-eq-f3 <float> Freq 3 (Hz)
--param-eq-gain3 <float> Freq 3 gain (Db)
--param-eq-q3 <float> Freq 3 Q
Playlist
--playlist-autostart, --no-playlist-autostart
Auto start (default enabled)
Automatically start playing the playlist
content once it's loaded.
(default enabled)
--m3u-extvlcopt, --no-m3u-extvlcopt
Enable parsing of EXTVLCOPT: options (default
disabled)
Enable parsing of EXTVLCOPT: options in m3u
playlists. This option is default disabled to
prevent untrusted sources using VLC options
without the user's knowledge. (default
disabled)
--shoutcast-show-adult, --no-shoutcast-show-adult
Show shoutcast adult content (default
disabled)
Show NC17 rated video streams when using
shoutcast video playlists. (default disabled)
Podcasts
--podcast-urls <string> Podcast URLs list
Enter the list of podcasts to retrieve,
separated by '|' (pipe).
PORTAUDIO audio output
--portaudio-device <integer>
Output device
Portaudio identifier for the output device
DV (Digital Video) demuxer
--rawdv-hurry-up, --no-rawdv-hurry-up
Hurry up (default disabled)
The demuxer will advance timestamps if the
input can't keep up with the rate. (default
disabled)
Remote control interface
--rc-quiet, --no-rc-quiet Do not open a DOS command box interface
(default disabled)
By default the rc interface plugin will start
a DOS command box. Enabling the quiet mode
will not bring this command box but can also
be pretty annoying when you want to stop VLC
and no video window is open. (default
disabled)
RSS and Atom feed display
--rss-urls <string> Feed URLs
RSS/Atom feed '|' (pipe) seperated URLs.
--rss-position {0 (Center), 1 (Left), 2 (Right), 4 (Top), 8 (Bottom), 5 (Top-Left), 6 (Top-Right), 9 (Bottom-Left), 10 (Bottom-Right)}
Text position
You can enforce the text position on the
video (0=center, 1=left, 2=right, 4=top,
8=bottom; you can also use combinations of
these values, eg 6 = top-right).
--rss-opacity <integer> Opacity
Opacity (inverse of transparency) of overlay
text. 0 = transparent, 255 = totally opaque.
--rss-color {-268435456 (Default), 0 (Black), 8421504 (Gray), 12632256 (Silver), 16777215 (White), 8388608 (Maroon), 16711680 (Red), 16711935 (Fuchsia), 16776960 (Yellow), 8421376 (Olive), 32768 (Green), 32896 (Teal), 65280 (Lime), 8388736 (Purple), 128 (Navy), 255 (Blue), 65535 (Aqua)}
Color
Color of the text that will be rendered on
the video. This must be an hexadecimal (like
HTML colors). The first two chars are for
red, then green, then blue. #000000 = black,
#FF0000 = red, #00FF00 = green, #FFFF00 =
yellow (red + green), #FFFFFF = white
--rss-size <integer> Font size, pixels
Font size, in pixels. Default is -1 (use
default font size).
--rss-speed <integer> Speed of feeds
Speed of the RSS/Atom feeds (bigger is
slower).
--rss-length <integer> Max length
Maximum number of characters displayed on the
screen.
--rss-ttl <integer> Refresh time
Number of seconds between each forced refresh
of the feeds. 0 means that the feeds are
never updated.
--rss-images, --no-rss-images
Feed images (default enabled)
Display feed images if available. (default
enabled)
Shoutcast radio listings
Skinnable Interface
--skins2-systray, --no-skins2-systray
Systray icon (default disabled)
Show a systray icon for VLC (default disabled)
--skins2-taskbar, --no-skins2-taskbar
Show VLC on the taskbar (default enabled)
Show VLC on the taskbar (default enabled)
--skins2-transparency, --no-skins2-transparency
Enable transparency effects (default disabled)
You can disable all transparency effects if
you want. This is mainly useful when moving
windows does not behave correctly. (default
disabled)
--skinned-playlist, --no-skinned-playlist
Enable skinned playlist (default enabled)
You can choose whether the playlist window is
rendered using the skin or the default GUI.
(default enabled)
Bridge stream output
--sout-bridge-out-id <integer>
ID
Integer identifier for this elementary
stream. This will be used to "find" this
stream later.
--sout-bridge-in-delay <integer>
Delay
Pictures coming from the picture video
outputs will be delayed according to this
value (in milliseconds, should be >= 100 ms).
For high values, you will need to raise
caching values.
--sout-bridge-in-id-offset <integer>
ID Offset
Offset to add to the stream IDs specified in
bridge_out to obtain the stream IDs bridge_in
will register.
Mosaic bridge stream output
--sout-mosaic-bridge-id <string>
ID
Specify an identifier string for this
subpicture
--sout-mosaic-bridge-sar <string>
Sample aspect ratio
Sample aspect ratio of the destination (1:1,
3:4, 2:3).
RTP stream output
--sout-rtp-mp4a-latm, --no-sout-rtp-mp4a-latm
MP4A LATM (default disabled)
This allows you to stream MPEG4 LATM audio
streams (see RFC3016). (default disabled)
Standard stream output
--sout-standard-access <string>
Output access method
This is the output access method that will be
used.
--sout-standard-mux <string>
Output muxer
This is the muxer that will be used.
--sout-standard-dst <string>
Output destination
This is the destination (URL) that will be
used for the stream.
Transcode stream output
--sout-transcode-venc <string>
Video encoder
This is the video encoder module that will be
used (and its associated options).
--sout-transcode-vcodec <string>
Destination video codec
This is the video codec that will be used.
--sout-transcode-vb <integer>
Video bitrate
Target bitrate of the transcoded video stream.
--sout-transcode-scale <float>
Video scaling
Scale factor to apply to the video while
transcoding (eg: 0.25)
--sout-transcode-fps <float>
Video frame-rate
Target output frame rate for the video stream.
--sout-transcode-hurry-up, --no-sout-transcode-hurry-up
Hurry up (default enabled)
The transcoder will drop frames if your CPU
can't keep up with the encoding rate.
(default enabled)
--sout-transcode-deinterlace, --no-sout-transcode-deinterlace
Deinterlace video (default disabled)
Deinterlace the video before encoding.
(default disabled)
--sout-transcode-deinterlace-module {deinterlace,ffmpeg-deinterlace}
Deinterlace module
Specify the deinterlace module to use.
--sout-transcode-vfilter <string>
Video filter
Video filters will be applied to the video
streams (after overlays are applied). You
must enter a comma-separated list of filters.
--sout-transcode-canvas-aspect <string>
Video canvas aspect ratio
This sets aspect (like 4:3) of the video
canvas and letterbox the video accordingly.
--sout-transcode-aenc <string>
Audio encoder
This is the audio encoder module that will be
used (and its associated options).
--sout-transcode-acodec <string>
Destination audio codec
This is the audio codec that will be used.
--sout-transcode-ab <integer>
Audio bitrate
Target bitrate of the transcoded audio stream.
--sout-transcode-channels <integer>
Audio channels
Number of audio channels in the transcoded
streams.
--sout-transcode-audio-sync, --no-sout-transcode-audio-sync
Synchronise on audio track (default disabled)
This option will drop/duplicate video frames
to synchronise the video track on the audio
track. (default disabled)
--sout-transcode-senc <string>
Subtitles encoder
This is the subtitles encoder module that
will be used (and its associated options).
--sout-transcode-scodec <string>
Destination subtitles codec
This is the subtitles codec that will be used.
--sout-transcode-soverlay, --no-sout-transcode-soverlay
Destination subtitles codec (default disabled)
This is the subtitles codec that will be
used. (default disabled)
--sout-transcode-sfilter <string>
Overlays
This allows you to add overlays (also known
as "subpictures" on the transcoded video
stream. The subpictures produced by the
filters will be overlayed directly onto the
video. You must specify a comma-separated
list of subpicture modules
--sout-transcode-osd, --no-sout-transcode-osd
OSD menu (default disabled)
Stream the On Screen Display menu (using the
osdmenu subpicture module). (default disabled)
Text subtitles decoder
--subsdec-align {0 (Center), 1 (Left), 2 (Right)}
Subtitles justification
Set the justification of subtitles
--subsdec-encoding {Default,ASCII,UTF-8,,ISO-8859-1,CP1252,MacRoman,MacIceland,ISO-8859-15,,ISO-8859-2,CP1250,MacCentralEurope,MacCroatian,MacRomania,,ISO-8859-5,CP1251,MacCyrillic,MacUkraine,KOI8-R,KOI8-U,KOI8-RU,,ISO-8859-6,CP1256,MacArabic,,ISO-8859-7,CP1253,MacGreek,,ISO-8859-8,CP1255,MacHebrew,,ISO-8859-9,CP1254,MacTurkish,,ISO-8859-13,CP1257,,ISO-2022-JP,ISO-2022-JP-1,ISO-2022-JP-2,EUC-JP,SHIFT_JIS,,ISO-2022-CN,ISO-2022-CN-EXT,EUC-CN,EUC-TW,BIG5,BIG5-HKSCS,,ISO-2022-KR,EUC-KR,,MacThai,KOI8-T,,ISO-8859-3,ISO-8859-4,ISO-8859-10,ISO-8859-14,ISO-8859-16,,CP850,CP862,CP866,CP874,CP932,CP949,CP950,CP1133,CP1258,,Macintosh,,UTF-7,UTF-16,UTF-16BE,UTF-16LE,UTF-32,UTF-32BE,UTF-32LE,C99,JAVA,UCS-2,UCS-2BE,UCS-2LE,UCS-4,UCS-4BE,UCS-4LE,,HZ,GBK,GB18030,JOHAB,ARMSCII-8,Georgian-Academy,Georgian-PS,TIS-620,MuleLao-1,VISCII,TCVN,HPROMAN8,NEXTSTEP}
Subtitles text encoding
Set the encoding used in text subtitles
--subsdec-autodetect-utf8, --no-subsdec-autodetect-utf8
UTF-8 subtitles autodetection (default
enabled)
This enables automatic detection of UTF-8
encoding within subtitles files. (default
enabled)
--subsdec-formatted, --no-subsdec-formatted
Formatted Subtitles (default enabled)
Some subtitle formats allow for text
formatting. VLC partly implements this, but
you can choose to disable all formatting.
(default enabled)
Theora video decoder
--sout-theora-quality <integer>
Encoding quality
Enforce a quality between 1 (low) and 10
(high), instead of specifying a particular
bitrate. This will produce a VBR stream.
Time display sub filter
--time-position {0 (Center), 1 (Left), 2 (Right), 4 (Top), 8 (Bottom), 5 (Top-Left), 6 (Top-Right), 9 (Bottom-Left), 10 (Bottom-Right)}
Text position
You can enforce the text position on the
video (0=center, 1=left, 2=right, 4=top,
8=bottom, you can also use combinations of
these values, e.g. 6 = top-right).
--time-opacity <integer> Opacity
Opacity (inverse of transparency) of overlay
text. 0 = transparent, 255 = totally opaque.
--time-color {-268435456 (Default), 0 (Black), 8421504 (Gray), 12632256 (Silver), 16777215 (White), 8388608 (Maroon), 16711680 (Red), 16711935 (Fuchsia), 16776960 (Yellow), 8421376 (Olive), 32768 (Green), 32896 (Teal), 65280 (Lime), 8388736 (Purple), 128 (Navy), 255 (Blue), 65535 (Aqua)}
Color
Color of the text that will be rendered on
the video. This must be an hexadecimal (like
HTML colors). The first two chars are for
red, then green, then blue. #000000 = black,
#FF0000 = red, #00FF00 = green, #FFFF00 =
yellow (red + green), #FFFFFF = white
--time-size <integer> Font size, pixels
Font size, in pixels. Default is -1 (use
default font size).
Video transformation filter
--transform-type {90,180,270,hflip,vflip}
Transform type
One of '90', '180', '270', 'hflip' and 'vflip'
MPEG Transport Stream demuxer
--ts-dump-file <string> Filename of dump
Specify a filename where to dump the TS in.
--ts-dump-append, --no-ts-dump-append
Append (default disabled)
If the file exists and this option is
selected, the existing file will not be
overwritten. (default disabled)
Libtwolame audio encoder
--sout-twolame-quality <float>
Encoding quality
Force a specific encoding quality between 0.0
(high) and 50.0 (low), instead of specifying
a particular bitrate. This will produce a VBR
stream.
--sout-twolame-mode {0 (Stereo), 1 (Dual mono), 2 (Joint stereo)}
Stereo mode
Handling mode for stereo streams
--sout-twolame-vbr, --no-sout-twolame-vbr
VBR mode (default disabled)
Use Variable BitRate. Default is to use
Constant BitRate (CBR). (default disabled)
--sout-twolame-psy <integer>
Psycho-acoustic model
Integer from -1 (no model) to 4.
Visualizer filter
--effect-width <integer> Video width
The width of the effects video window, in
pixels.
--effect-height <integer> Video height
The height of the effects video window, in
pixels.
Vorbis audio decoder
--sout-vorbis-quality <integer>
Encoding quality
Enforce a quality between 1 (low) and 10
(high), instead of specifying a particular
bitrate. This will produce a VBR stream.
--sout-vorbis-max-bitrate <integer>
Maximum encoding bitrate
Maximum bitrate in kbps. This is useful for
streaming applications.
--sout-vorbis-min-bitrate <integer>
Minimum encoding bitrate
Minimum bitrate in kbps. This is useful for
encoding for a fixed-size channel.
--sout-vorbis-cbr, --no-sout-vorbis-cbr
CBR encoding (default disabled)
Force a constant bitrate encoding (CBR).
(default disabled)
Wall video filter
--wall-cols <integer> Number of columns
Number of horizontal windows in which to
split the video.
--wall-rows <integer> Number of rows
Number of vertical windows in which to split
the video.
--wall-element-aspect <string>
Element aspect ratio
Aspect ratio of the individual displays
building the wall.
wxWidgets interface module
--wx-embed, --no-wx-embed Embed video in interface (default enabled)
Embed the video inside the interface instead
of having it in a separate window. (default
enabled)
--wx-bookmarks, --no-wx-bookmarks
Bookmarks dialog (default disabled)
Show bookmarks dialog at startup (default
disabled)
--wx-taskbar, --no-wx-taskbar
Taskbar (default enabled)
Show VLC on the taskbar (default enabled)
--wx-extended, --no-wx-extended
Extended GUI (default disabled)
Show extended GUI (equalizer, image adjust,
video filters...) at startup (default
disabled)
--wx-playlist-view {0 (Normal), 1 (Embedded), 2 (Both)}
Playlist view
There are two possible playlist views in the
interface : the normal playlist (separate
window), or an embedded playlist (within the
main interface, but with less features). You
can select which one will be available on the
toolbar (or both).
--wx-systray, --no-wx-systray
Systray icon (default disabled)
Show a systray icon for VLC (default disabled)
H.264/MPEG4 AVC encoder (using x264 library)
--sout-x264-keyint <integer>
Maximum GOP size
Sets maximum interval between
IDR-frames.Larger values save bits, thus
improving quality for a given bitrate at the
cost of seeking precision.
--sout-x264-min-keyint <integer>
Minimum GOP size
Sets minimum interval between IDR-frames. 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
reference frame option). Therefore, I-frames
are not necessarily seekable. IDR-frames
restrict subsequent P-frames from referring
to any frame prior to the IDR-frame.
If
scenecuts appear within this interval, they
are still encoded as I-frames, but do not
start a new GOP.
--sout-x264-scenecut <integer>
Extra I-frames aggressivity
Scene-cut detection. Controls how
aggressively to insert extra I-frames. 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
every other keyint frames, which probably
leads to ugly encoding artifacts. Range 1 to
100.
--sout-x264-bframes <integer>
B-frames between I and P
Number of consecutive B-frames between I and
P-frames. Range 1 to 16.
--sout-x264-b-adapt, --no-sout-x264-b-adapt
Adaptive B-frame decision (default enabled)
Force the specified number of consecutive
B-frames to be used, except possibly before
an I-frame. (default enabled)
--sout-x264-b-bias <integer>
Influence (bias) B-frames usage
Bias the choice to use B-frames. Positive
values cause more B-frames, negative values
cause less B-frames.
--sout-x264-bpyramid, --no-sout-x264-bpyramid
Keep some B-frames as references (default
disabled)
Allows B-frames to be used as references for
predicting other frames. Keeps the middle of
2+ consecutive B-frames as a reference, and
reorders frame appropriately. (default
disabled)
--sout-x264-cabac, --no-sout-x264-cabac
CABAC (default enabled)
CABAC (Context-Adaptive Binary Arithmetic
Coding). Slightly slows down encoding and
decoding, but should save 10 to 15% bitrate.
(default enabled)
--sout-x264-ref <integer> Number of reference frames
Number of previous frames used as predictors.
This is effective in Anime, but seems to make
little difference in live-action source
material. Some decoders are unable to deal
with large frameref values. Range 1 to 16.
--sout-x264-nf, --no-sout-x264-nf
Skip loop filter (default disabled)
Deactivate the deblocking loop filter
(decreases quality). (default disabled)
--sout-x264-deblock <string>
Loop filter AlphaC0 and Beta parameters
alpha:beta
Loop filter AlphaC0 and Beta parameters.
Range -6 to 6 for both alpha and beta
parameters. -6 means light filter, 6 means
strong.
--sout-x264-level <string> H.264 level
Specify H.264 level (as defined by Annex A of
the standard). Levels are not enforced; it's
up to the user to select a level compatible
with the rest of the encoding options. Range
1 to 5.1 (10 to 51 is also allowed).
--sout-x264-interlaced, --no-sout-x264-interlaced
Interlaced mode (default disabled)
Pure-interlaced mode. (default disabled)
--sout-x264-qp <integer> Set QP
This selects the quantizer to use. Lower
values result in better fidelity, but higher
bitrates. 26 is a good default value. Range 0
(lossless) to 51.
--sout-x264-crf <integer> Quality-based VBR
1-pass Quality-based VBR. Range 0 to 51.
--sout-x264-qpmin <integer>
Min QP
Minimum quantizer parameter. 15 to 35 seems
to be a useful range.
--sout-x264-qpmax <integer>
Max QP
Maximum quantizer parameter.
--sout-x264-qpstep <integer>
Max QP step
Max QP step between frames.
--sout-x264-ratetol <float>
Average bitrate tolerance
Allowed variance in average bitrate (in
kbits/s).
--sout-x264-vbv-maxrate <integer>
Max local bitrate
Sets a maximum local bitrate (in kbits/s).
--sout-x264-vbv-bufsize <integer>
VBV buffer
Averaging period for the maximum local
bitrate (in kbits).
--sout-x264-vbv-init <float>
Initial VBV buffer occupancy
Sets the initial buffer occupancy as a
fraction of the buffer size. Range 0.0 to 1.0.
--sout-x264-ipratio <float>
QP factor between I and P
QP factor between I and P. Range 1.0 to 2.0.
--sout-x264-pbratio <float>
QP factor between P and B
QP factor between P and B. Range 1.0 to 2.0.
--sout-x264-chroma-qp-offset <integer>
QP difference between chroma and luma
QP difference between chroma and luma.
--sout-x264-qcomp <float> QP curve compression
QP curve compression. Range 0.0 (CBR) to 1.0
(QCP).
--sout-x264-cplxblur <float>
Reduce fluctuations in QP
This reduces the fluctuations in QP before
curve compression. Temporally blurs
complexity.
--sout-x264-qblur <float> Reduce fluctuations in QP
This reduces the fluctations in QP after
curve compression. Temporally blurs quants.
--sout-x264-partitions {none,fast,normal,slow,all}
Partitions to consider
Partitions to consider in analyse mode:
-
none :
- fast : i4x4
- normal:
i4x4,p8x8,(i8x8)
- slow : i4x4,p8x8,(i8x8),b
8x8
- all : i4x4,p8x8,(i8x8),b8x8,p4x4
(p4x
4 requires p8x8. i8x8 requires 8x8dct).
--sout-x264-direct {none,spatial,temporal,auto}
Direct MV prediction mode
Direct MV prediction mode.
--sout-x264-direct-8x8 <integer>
Direct prediction size
Direct prediction size: - 0: 4x4
- 1:
8x8
- -1: smallest possible according to
level
--sout-x264-weightb, --no-sout-x264-weightb
Weighted prediction for B-frames (default
disabled)
Weighted prediction for B-frames. (default
disabled)
--sout-x264-me {dia,hex,umh,esa}
Integer pixel motion estimation method
Selects the motion estimation algorithm: -
dia: diamond search, radius 1 (fast)
- hex:
hexagonal search, radius 2
- umh: uneven
multi-hexagon search (better but slower)
-
esa: exhaustive search (extremely slow,
primarily for testing)
--sout-x264-merange <integer>
Maximum motion vector search range
Maximum distance to search for motion
estimation, measured from predicted
position(s). Default of 16 is good for most
footage, high motion sequences may benefit
from settings between 24 and 32. Range 0 to
64.
--sout-x264-subme <integer>
Subpixel motion estimation and partition
decision quality
This parameter controls quality versus speed
tradeoffs involved in the motion estimation
decision process (lower = quicker and higher
= better quality). Range 1 to 7.
--sout-x264-b-rdo, --no-sout-x264-b-rdo
RD based mode decision for B-frames (default
disabled)
RD based mode decision for B-frames. This
requires subme 6 (or higher). (default
disabled)
--sout-x264-mixed-refs, --no-sout-x264-mixed-refs
Decide references on a per partition basis
(default disabled)
Allows each 8x8 or 16x8 partition to
independently select a reference frame, as
opposed to only one ref per macroblock.
(default disabled)
--sout-x264-chroma-me, --no-sout-x264-chroma-me
Chroma in motion estimation (default enabled)
Chroma ME for subpel and mode decision in
P-frames. (default enabled)
--sout-x264-bime, --no-sout-x264-bime
Jointly optimize both MVs in B-frames
(default disabled)
Joint bidirectional motion refinement.
(default disabled)
--sout-x264-8x8dct, --no-sout-x264-8x8dct
Adaptive spatial transform size (default
disabled)
SATD-based decision for 8x8 transform in
inter-MBs. (default disabled)
--sout-x264-trellis <integer>
Trellis RD quantization
Trellis RD quantization:
- 0: disabled
-
1: enabled only on the final encode of a MB
- 2: enabled on all mode decisions
This
requires CABAC.
--sout-x264-fast-pskip, --no-sout-x264-fast-pskip
Early SKIP detection on P-frames (default
enabled)
Early SKIP detection on P-frames. (default
enabled)
--sout-x264-dct-decimate, --no-sout-x264-dct-decimate
Coefficient thresholding on P-frames (default
enabled)
Coefficient thresholding on P-frames.Eliminate
dct blocks containing only a small single
coefficient. (default enabled)
--sout-x264-nr <integer> Noise reduction
Dct-domain noise reduction. Adaptive
pseudo-deadzone. 10 to 1000 seems to be a
useful range.
--sout-x264-deadzone-inter <integer>
Inter luma quantization deadzone
Set the size of the intra luma quantization
deadzone. Range 0 to 32.
--sout-x264-deadzone-intra <integer>
Intra luma quantization deadzone
Set the size of the intra luma quantization
deadzone. Range 0 to 32.
--sout-x264-asm, --no-sout-x264-asm
CPU optimizations (default enabled)
Use assembler CPU optimizations. (default
enabled)
--sout-x264-psnr, --no-sout-x264-psnr
PSNR computation (default disabled)
Compute and print PSNR stats. This has no
effect on the actual encoding quality.
(default disabled)
--sout-x264-ssim, --no-sout-x264-ssim
SSIM computation (default disabled)
Compute and print SSIM stats. This has no
effect on the actual encoding quality.
(default disabled)
--sout-x264-quiet, --no-sout-x264-quiet
Quiet mode (default disabled)
Quiet mode. (default disabled)
--sout-x264-sps-id <integer>
SPS and PPS id numbers
Set SPS and PPS id numbers to allow
concatenating streams with different settings.
--sout-x264-aud, --no-sout-x264-aud
Access unit delimiters (default disabled)
Generate access unit delimiter NAL units.
(default disabled)
--sout-x264-verbose, --no-sout-x264-verbose
Statistics (default disabled)
Print stats for each frame. (default disabled)
