LEFT and RIGHT

Seek backward/forward 5 seconds. Shift+arrow does a 1 second exact seek (see --hr-seek).

UP and DOWN

Seek forward/backward 1 minute. Shift+arrow does a 5 second exact seek (see --hr-seek).

Ctrl+LEFT and Ctrl+RIGHT

Seek to the previous/next subtitle. Subject to some restrictions and might not always work; see sub-seek command.

Ctrl+Shift+Left and Ctrl+Shift+Right

Adjust subtitle delay so that the next or previous subtitle is displayed now. This is especially useful to sync subtitles to audio.

[ and ]

Decrease/increase current playback speed by 10%.

{ and }

Halve/double current playback speed.

BACKSPACE

Reset playback speed to normal.

Shift+BACKSPACE

Undo the last seek. This works only if the playlist entry was not changed. Hitting it a second time will go back to the original position. See revert-seek command for details.

Shift+Ctrl+BACKSPACE

Mark the current position. This will then be used by Shift+BACKSPACE as revert position (once you seek back, the marker will be reset). You can use this to seek around in the file and then return to the exact position where you left off.

< and >

Go backward/forward in the playlist.

ENTER

Go forward in the playlist.

p / SPACE

Pause (pressing again unpauses).

.

Step forward. Pressing once will pause, every consecutive press will play one frame and then go into pause mode again.

,

Step backward. Pressing once will pause, every consecutive press will play one frame in reverse and then go into pause mode again.

q

Stop playing and quit.

Q

Like q, but store the current playback position. Playing the same file later will resume at the old playback position if possible.

/ and *

Decrease/increase volume.

9 and 0

Decrease/increase volume.

m

Mute sound.

_

Cycle through the available video tracks.

#

Cycle through the available audio tracks.

f

Toggle fullscreen (see also --fs).

ESC

Exit fullscreen mode.

T

Toggle stay-on-top (see also --ontop).

w and W

Decrease/increase pan-and-scan range. The e key does the same as W currently, but use is discouraged.

o (also P)

Show progression bar, elapsed time and total duration on the OSD.

O

Toggle OSD states between normal and playback time/duration.

v

Toggle subtitle visibility.

j and J

Cycle through the available subtitles.

z and Z

Adjust subtitle delay by +/- 0.1 seconds. The x key does the same as Z currently, but use is discouraged.

l

Set/clear A-B loop points. See ab-loop command for details.

L

Toggle infinite looping.

Ctrl + and Ctrl -

Adjust audio delay (A/V sync) by +/- 0.1 seconds.

Shift+g and Shift+f

Adjust subtitle font size by +/- 10%.

u

Switch between applying no style overrides to SSA/ASS subtitles, and overriding them almost completely with the normal subtitle style. See --sub-ass-override for more info.

V

Toggle subtitle VSFilter aspect compatibility mode. See --sub-ass-vsfilter-aspect-compat for more info.

r and R

Move subtitles up/down. The t key does the same as R currently, but use is discouraged.

s

Take a screenshot.

S

Take a screenshot, without subtitles. (Whether this works depends on VO driver support.)

Ctrl s

Take a screenshot, as the window shows it (with subtitles, OSD, and scaled video).

PGUP and PGDWN

Seek to the beginning of the previous/next chapter. In most cases, "previous" will actually go to the beginning of the current chapter; see --chapter-seek-threshold.

Shift+PGUP and Shift+PGDWN

Seek backward or forward by 10 minutes. (This used to be mapped to PGUP/PGDWN without Shift.)

d

Activate/deactivate deinterlacer.

A

Cycle aspect ratio override.

Ctrl h

Toggle hardware video decoding on/off.

Alt+LEFT, Alt+RIGHT, Alt+UP, Alt+DOWN

Move the video rectangle (panning).

Alt + and Alt -

Combining Alt with the + or - keys changes video zoom.

Alt+BACKSPACE

Reset the pan/zoom settings.

F8

Show the playlist and the current position in it (useful only if a UI window is used, broken on the terminal).

F9

Show the list of audio and subtitle streams (useful only if a UI window is used, broken on the terminal).

i and I

Show/toggle an overlay displaying statistics about the currently playing file such as codec, framerate, number of dropped frames and so on. See STATS for more information.

del

Cycle OSC visibility between never / auto (mouse-move) / always

`

Show the console. (ESC closes it again. See CONSOLE.)

1 and 2

Adjust contrast.

3 and 4

Adjust brightness.

5 and 6

Adjust gamma.

7 and 8

Adjust saturation.

Alt+0 (and command+0 on macOS)

Resize video window to half its original size.

Alt+1 (and command+1 on macOS)

Resize video window to its original size.

Alt+2 (and command+2 on macOS)

Resize video window to double its original size.

command + f (macOS only)

Toggle fullscreen (see also --fs).

PAUSE

Pause.

STOP

Stop playing and quit.

PREVIOUS and NEXT

Seek backward/forward 1 minute.

Left double click

Toggle fullscreen on/off.

Right click

Toggle pause on/off.

Forward/Back button

Skip to next/previous entry in playlist.

Wheel up/down

Seek forward/backward 10 seconds.

Wheel left/right

Decrease/increase volume.

(function environment table)

Every Lua function has an environment table. This is used for identifier access. There is no named Lua symbol for it; it is implicit.

The environment does "magic" accesses to mpv properties. If an identifier is not already defined in _G, it retrieves the mpv property of the same name. Any occurrences of _ in the name are replaced with - before reading the property. The returned value is as retrieved by mp.get_property_native(name). Internally, a cache of property values, updated by observing the property is used instead, so properties that are not observable will be stuck at the initial value forever.

If you want to access properties, that actually contain _ in the name, use get() (which does not perform transliteration).

Internally, the environment table has a __index meta method set, which performs the access logic.

p

A "magic" table similar to the environment table. Unlike the latter, this does not prefer accessing variables defined in _G - it always accesses properties.

get(name [, def])

Read a property and return its value. If the property value is nil (e.g. if the property does not exist), def is returned.

This is superficially similar to mp.get_property_native(name). An important difference is that this accesses the property cache, and enables the change detection logic (which is essential to the dynamic runtime behavior of auto profiles). Also, it does not return an error value as second return value.

The "magic" tables mentioned above use this function as backend. It does not perform the _ transliteration.

--alang=<languagecode[,languagecode,...]>

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, MPEG-TS and NUT use ISO 639-2 three-letter language codes, while OGM uses a free-form identifier. See also --aid.

This is a string list option. See List Options for details.

--slang=<languagecode[,languagecode,...]>

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. See also --sid.

This is a string list option. See List Options for details.

--vlang=<...>

Equivalent to --alang and --slang, for video tracks.

This is a string list option. See List Options for details.

--aid=<ID|auto|no>

Select audio track. auto selects the default, no disables audio. See also --alang. mpv normally prints available audio tracks on the terminal when starting playback of a file.

--audio is an alias for --aid.

--aid=no or --audio=no or --no-audio disables audio playback. (The latter variant does not work with the client API.)

NOTE:

--sid=<ID|auto|no>

Display the subtitle stream specified by <ID>. auto selects the default, no disables subtitles.

--sub is an alias for --sid.

--sid=no or --sub=no or --no-sub disables subtitle decoding. (The latter variant does not work with the client API.)

--vid=<ID|auto|no>

Select video channel. auto selects the default, no disables video.

--video is an alias for --vid.

--vid=no or --video=no or --no-video disables video playback. (The latter variant does not work with the client API.)

If video is disabled, mpv will try to download the audio only if media is streamed with youtube-dl, because it saves bandwidth. This is done by setting the ytdl_format to "bestaudio/best" in the ytdl_hook.lua script.

--edition=<ID|auto>

(Matroska files only) Specify the edition (set of chapters) to use, where 0 is the first. If set to auto (the default), mpv will choose the first edition declared as a default, or if there is no default, the first edition defined.

--track-auto-selection=<yes|no>

Enable the default track auto-selection (default: yes). Enabling this will make the player select streams according to --aid, --alang, and others. If it is disabled, no tracks are selected. In addition, the player will not exit if no tracks are selected, and wait instead (this wait mode is similar to pausing, but the pause option is not set).

This is useful with --lavfi-complex: you can start playback in this mode, and then set select tracks at runtime by setting the filter graph. Note that if --lavfi-complex is set before playback is started, the referenced tracks are always selected.

--subs-with-matching-audio=<yes|no>

When autoselecting a subtitle track, select a non-forced one even if the selected audio stream matches your preferred subtitle language (default: yes). Disable this if you'd like to only show subtitles for foreign audio or onscreen text.

--start=<relative time>

Seek to given time position.

The general format for times is [+|-][[hh:]mm:]ss[.ms]. If the time is prefixed with -, the time is considered relative from the end of the file (as signaled by the demuxer/the file). A + is usually ignored (but see below).

The following alternative time specifications are recognized:

pp% seeks to percent position pp (0-100).

#c seeks to chapter number c. (Chapters start from 1.)

none resets any previously set option (useful for libmpv).

If --rebase-start-time=no is given, then prefixing times with + makes the time relative to the start of the file. A timestamp without prefix is considered an absolute time, i.e. should seek to a frame with a timestamp as the file contains it. As a bug, but also a hidden feature, putting 1 or more spaces before the + or - always interprets the time as absolute, which can be used to seek to negative timestamps (useful for debugging at most).

--end=<relative time>

Stop at given time. Use --length if the time should be relative to --start. See --start for valid option values and examples.

--length=<relative time>

Stop after a given time relative to the start time. See --start for valid option values and examples.

If both --end and --length are provided, playback will stop when it reaches either of the two endpoints.

Obscurity note: this does not work correctly if --rebase-start-time=no, and the specified time is not an "absolute" time, as defined in the --start option description.

--rebase-start-time=<yes|no>

Whether to move the file start time to 00:00:00 (default: yes). This is less awkward for files which start at a random timestamp, such as transport streams. On the other hand, if there are timestamp resets, the resulting behavior can be rather weird. For this reason, and in case you are actually interested in the real timestamps, this behavior can be disabled with no.

--speed=<0.01-100>

Slow down or speed up playback by the factor given as parameter.

If --audio-pitch-correction (on by default) is used, playing with a speed higher than normal automatically inserts the scaletempo2 audio filter.

--pause

Start the player in paused state.

--shuffle

Play files in random order.

--playlist-start=<auto|index>

Set which file on the internal playlist to start playback with. The index is an integer, with 0 meaning the first file. The value auto means that the selection of the entry to play is left to the playback resume mechanism (default). If an entry with the given index doesn't exist, the behavior is unspecified and might change in future mpv versions. The same applies if the playlist contains further playlists (don't expect any reasonable behavior). Passing a playlist file to mpv should work with this option, though. E.g. mpv playlist.m3u --playlist-start=123 will work as expected, as long as playlist.m3u does not link to further playlists.

The value no is a deprecated alias for auto.

--playlist=<filename>

Play files according to a playlist file. Supports some common formats. If no format is detected, it will be treated as list of files, separated by newline characters. You may need this option to load plaintext files as a playlist. Note that XML playlist formats are not supported.

This option forces --demuxer=playlist to interpret the playlist file. Some playlist formats, notably CUE and optical disc formats, need to use different demuxers and will not work with this option. They still can be played directly, without using this option.

You can play playlists directly, without this option. Before mpv version 0.31.0, this option disabled any security mechanisms that might be in place, but since 0.31.0 it uses the same security mechanisms as playing a playlist file directly. If you trust the playlist file, you can disable any security checks with --load-unsafe-playlists. Because playlists can load other playlist entries, consider applying this option only to the playlist itself and not its entries, using something along these lines:

WARNING:

--chapter-merge-threshold=<number>

Threshold for merging almost consecutive ordered chapter parts in milliseconds (default: 100). Some Matroska files with ordered chapters have inaccurate chapter end timestamps, causing a small gap between the end of one chapter and the start of the next one when they should match. If the end of one playback part is less than the given threshold away from the start of the next one then keep playing video normally over the chapter change instead of doing a seek.

--chapter-seek-threshold=<seconds>

Distance in seconds from the beginning of a chapter within which a backward chapter seek will go to the previous chapter (default: 5.0). Past this threshold, a backward chapter seek will go to the beginning of the current chapter instead. A negative value means always go back to the previous chapter.

--hr-seek=<no|absolute|yes|default>

Select when to use precise seeks that are not limited to keyframes. Such seeks require decoding video from the previous keyframe up to the target position and so can take some time depending on decoding performance. For some video formats, precise seeks are disabled. This option selects the default choice to use for seeks; it is possible to explicitly override that default in the definition of key bindings and in input commands.

--hr-seek-demuxer-offset=<seconds>

This option exists to work around failures to do precise seeks (as in --hr-seek) caused by bugs or limitations in the demuxers for some file formats. Some demuxers fail to seek to a keyframe before the given target position, going to a later position instead. The value of this option is subtracted from the time stamp given to the demuxer. Thus, if you set this option to 1.5 and try to do a precise seek to 60 seconds, the demuxer is told to seek to time 58.5, which hopefully reduces the chance that it erroneously goes to some time later than 60 seconds. The downside of setting this option is that precise seeks become slower, as video between the earlier demuxer position and the real target may be unnecessarily decoded.

--hr-seek-framedrop=<yes|no>

Allow the video decoder to drop frames during seek, if these frames are before the seek target. If this is enabled, precise seeking can be faster, but if you're using video filters which modify timestamps or add new frames, it can lead to precise seeking skipping the target frame. This e.g. can break frame backstepping when deinterlacing is enabled.

Default: yes

--index=<mode>

Controls how to seek in files. Note that if the index is missing from a file, it will be built on the fly by default, so you don't need to change this. But it might help with some broken files.

NOTE:

--load-unsafe-playlists

Load URLs from playlists which are considered unsafe (default: no). This includes special protocols and anything that doesn't refer to normal files. Local files and HTTP links on the other hand are always considered safe.

In addition, if a playlist is loaded while this is set, the added playlist entries are not marked as originating from network or potentially unsafe location. (Instead, the behavior is as if the playlist entries were provided directly to mpv command line or loadfile command.)

--access-references=<yes|no>

Follow any references in the file being opened (default: yes). Disabling this is helpful if the file is automatically scanned (e.g. thumbnail generation). If the thumbnail scanner for example encounters a playlist file, which contains network URLs, and the scanner should not open these, enabling this option will prevent it. This option also disables ordered chapters, mov reference files, opening of archives, and a number of other features.

On older FFmpeg versions, this will not work in some cases. Some FFmpeg demuxers might not respect this option.

This option does not prevent opening of paired subtitle files and such. Use --autoload-files=no to prevent this.

This option does not always work if you open non-files (for example using dvd://directory would open a whole bunch of files in the given directory). Prefixing the filename with ./ if it doesn't start with a / will avoid this.

--loop-playlist=<N|inf|force|no>, --loop-playlist

Loops playback N times. A value of 1 plays it one time (default), 2 two times, etc. inf means forever. no is the same as 1 and disables looping. If several files are specified on command line, the entire playlist is looped. --loop-playlist is the same as --loop-playlist=inf.

The force mode is like inf, but does not skip playlist entries which have been marked as failing. This means the player might waste CPU time trying to loop a file that doesn't exist. But it might be useful for playing webradios under very bad network conditions.

--loop-file=<N|inf|no>, --loop=<N|inf|no>

Loop a single file N times. inf means forever, no means normal playback. For compatibility, --loop-file and --loop-file=yes are also accepted, and are the same as --loop-file=inf.

The difference to --loop-playlist is that this doesn't loop the playlist, just the file itself. If the playlist contains only a single file, the difference between the two option is that this option performs a seek on loop, instead of reloading the file.

NOTE:

--loop is an alias for this option.

--ab-loop-a=<time>, --ab-loop-b=<time>

Set loop points. If playback passes the b timestamp, it will seek to the a timestamp. Seeking past the b point doesn't loop (this is intentional).

If a is after b, the behavior is as if the points were given in the right order, and the player will seek to b after crossing through a. This is different from old behavior, where looping was disabled (and as a bug, looped back to a on the end of the file).

If either options are set to no (or unset), looping is disabled. This is different from old behavior, where an unset a implied the start of the file, and an unset b the end of the file.

The loop-points can be adjusted at runtime with the corresponding properties. See also ab-loop command.

--ab-loop-count=<N|inf>

Run A-B loops only N times, then ignore the A-B loop points (default: inf). Every finished loop iteration will decrement this option by 1 (unless it is set to inf or 0). inf means that looping goes on forever. If this option is set to 0, A-B looping is ignored, and even the ab-loop command will not enable looping again (the command will show (disabled) on the OSD message if both loop points are set, but ab-loop-count is 0).

--ordered-chapters, --no-ordered-chapters

Enabled by default. Disable support for Matroska ordered chapters. mpv will not load or search for video segments from other files, and will also ignore any chapter order specified for the main file.

--ordered-chapters-files=<playlist-file>

Loads the given file as playlist, and tries to use the files contained in it as reference files when opening a Matroska file that uses ordered chapters. This overrides the normal mechanism for loading referenced files by scanning the same directory the main file is located in.

Useful for loading ordered chapter files that are not located on the local filesystem, or if the referenced files are in different directories.

Note: a playlist can be as simple as a text file containing filenames separated by newlines.

--chapters-file=<filename>

Load chapters from this file, instead of using the chapter metadata found in the main file.

This accepts a media file (like mkv) or even a pseudo-format like ffmetadata and uses its chapters to replace the current file's chapters. This doesn't work with OGM or XML chapters directly.

--sstep=<sec>

Skip <sec> seconds after every frame.

NOTE:

--stop-playback-on-init-failure=<yes|no>

Stop playback if either audio or video fails to initialize (default: no). With no, playback will continue in video-only or audio-only mode if one of them fails. This doesn't affect playback of audio-only or video-only files.

--play-dir=<forward|+|backward|->

Control the playback direction (default: forward). Setting backward will attempt to play the file in reverse direction, with decreasing playback time. If this is set on playback starts, playback will start from the end of the file. If this is changed at during playback, a hr-seek will be issued to change the direction.

+ and - are aliases for forward and backward.

The rest of this option description pertains to the backward mode.

NOTE:

mpv, as well as most media formats, were designed for forward playback only. Backward playback is bolted on top of mpv, and tries to make a medium effort to make backward playback work. Depending on your use-case, another tool may work much better.

Backward playback is not exactly a 1st class feature. Implementation tradeoffs were made, that are bad for backward playback, but in turn do not cause disadvantages for normal playback. Various possible optimizations are not implemented in order to keep the complexity down. Normally, a media player is highly pipelined (future data is prepared in separate threads, so it is available in realtime when the next stage needs it), but backward playback will essentially stall the pipeline at various random points.

For example, for intra-only codecs are trivially backward playable, and tools built around them may make efficient use of them (consider video editors or camera viewers). mpv won't be efficient in this case, because it uses its generic backward playback algorithm, that on top of it is not very optimized.

If you just want to quickly go backward through the video and just show "keyframes", just use forward playback, and hold down the left cursor key (which on CLI with default config sends many small relative seek commands).

The implementation consists of mostly 3 parts:

Known problems:

Tuning:

--video-reversal-buffer=<bytesize>, --audio-reversal-buffer=<bytesize>

For backward decoding. Backward decoding decodes forward in steps, and then reverses the decoder output. These options control the approximate maximum amount of bytes that can be buffered. The main use of this is to avoid unbounded resource usage; during normal backward playback, it's not supposed to hit the limit, and if it does, it will drop frames and complain about it.

Use this option if you get reversal queue overflow errors during backward playback. Increase the size until the warning disappears. Usually, the video buffer will overflow first, especially if it's high resolution video.

This does not work correctly if video hardware decoding is used. The video frame size will not include the referenced GPU and driver memory. Some hardware decoders may also be limited by --hwdec-extra-frames.

How large the queue size needs to be depends entirely on the way the media was encoded. Audio typically requires a very small buffer, while video can require excessively large buffers.

(Technically, this allows the last frame to exceed the limit. Also, this does not account for other buffered frames, such as inside the decoder or the video output.)

This does not affect demuxer cache behavior at all.

See --list-options for defaults and value range. <bytesize> options accept suffixes such as KiB and MiB.

--video-backward-overlap=<auto|number>, --audio-backward-overlap=<auto|number>

Number of overlapping keyframe ranges to use for backward decoding (default: auto) ("keyframe" to be understood as in the mpv/ffmpeg specific meaning). Backward decoding works by forward decoding in small steps. Some codecs cannot restart decoding from any packet (even if it's marked as seek point), which becomes noticeable with backward decoding (in theory this is a problem with seeking too, but --hr-seek-demuxer-offset can fix it for seeking). In particular, MDCT based audio codecs are affected.

The solution is to feed a previous packet to the decoder each time, and then discard the output. This option controls how many packets to feed. The auto choice is currently hardcoded to 0 for video, and uses 1 for lossy audio, 0 for lossless audio. For some specific lossy audio codecs, this is set to 2.

--video-backward-overlap can potentially handle intra-refresh video, depending on the exact conditions. You may have to use the --vd-lavc-show-all option as well.

--video-backward-batch=<number>, --audio-backward-batch=<number>

Number of keyframe ranges to decode at once when backward decoding (default: 1 for video, 10 for audio). Another pointless tuning parameter nobody should use. This should affect performance only. In theory, setting a number higher than 1 for audio will reduce overhead due to less frequent backstep operations and less redundant decoding work due to fewer decoded overlap frames (see --audio-backward-overlap). On the other hand, it requires a larger reversal buffer, and could make playback less smooth due to breaking pipelining (e.g. by decoding a lot, and then doing nothing for a while).

It probably never makes sense to set --video-backward-batch. But in theory, it could help with intra-only video codecs by reducing backstep operations.

--demuxer-backward-playback-step=<seconds>

Number of seconds the demuxer should seek back to get new packets during backward playback (default: 60). This is useful for tuning backward playback, see --play-dir for details.

Setting this to a very low value or 0 may make the player think seeking is broken, or may make it perform multiple seeks.

Setting this to a high value may lead to quadratic runtime behavior.

--help, --h

Show short summary of options.

You can also pass a string to this option, which will list all top-level options which contain the string in the name, e.g. --h=scale for all options that contain the word scale. The special string * lists all top-level options.

-v

Increment verbosity level, one level for each -v found on the command line.

--version, -V

Print version string and exit.

--no-config

Do not load default configuration files. This prevents loading of both the user-level and system-wide mpv.conf and input.conf files. Other configuration files are blocked as well, such as resume playback files.

NOTE:

See also: --config-dir.

--list-options

Prints all available options.

--list-properties

Print a list of the available properties.

--list-protocols

Print a list of the supported protocols.

--log-file=<path>

Opens the given path for writing, and print log messages to it. Existing files will be truncated. The log level is at least -v -v, but can be raised via --msg-level (the option cannot lower it below the forced minimum log level).

A special case is the macOS bundle, it will create a log file at ~/Library/Logs/mpv.log by default.

--config-dir=<path>

Force a different configuration directory. If this is set, the given directory is used to load configuration files, and all other configuration directories are ignored. This means the global mpv configuration directory as well as per-user directories are ignored, and overrides through environment variables (MPV_HOME) are also ignored.

Note that the --no-config option takes precedence over this option.

--save-position-on-quit

Always save the current playback position on quit. When this file is played again later, the player will seek to the old playback position on start. This does not happen if playback of a file is stopped in any other way than quitting. For example, going to the next file in the playlist will not save the position, and start playback at beginning the next time the file is played.

This behavior is disabled by default, but is always available when quitting the player with Shift+Q.

--watch-later-directory=<path>

The directory in which to store the "watch later" temporary files.

The default is a subdirectory named "watch_later" underneath the config directory (usually ~/.config/mpv/).

--dump-stats=<filename>

Write certain statistics to the given file. The file is truncated on opening. The file will contain raw samples, each with a timestamp. To make this file into a readable, the script TOOLS/stats-conv.py can be used (which currently displays it as a graph).

This option is useful for debugging only.

--idle=<no|yes|once>

Makes mpv wait idly instead of quitting when there is no file to play. Mostly useful in input mode, where mpv can be controlled through input commands. (Default: no)

once will only idle at start and let the player close once the first playlist has finished playing back.

--include=<configuration-file>

Specify configuration file to be parsed after the default ones.

--load-scripts=<yes|no>

If set to no, don't auto-load scripts from the scripts configuration subdirectory (usually ~/.config/mpv/scripts/). (Default: yes)

--script=<filename>, --scripts=file1.lua:file2.lua:...

Load a Lua script. The second option allows you to load multiple scripts by separating them with the path separator (: on Unix, ; on Windows).

--scripts is a path list option. See List Options for details.

--script-opts=key1=value1,key2=value2,...

Set options for scripts. A script can query an option by key. If an option is used and what semantics the option value has depends entirely on the loaded scripts. Values not claimed by any scripts are ignored.

This is a key/value list option. See List Options for details.

--merge-files

Pretend that all files passed to mpv are concatenated into a single, big file. This uses timeline/EDL support internally.

--no-resume-playback

Do not restore playback position from the watch_later configuration subdirectory (usually ~/.config/mpv/watch_later/). See quit-watch-later input command.

--resume-playback-check-mtime

Only restore the playback position from the watch_later configuration subdirectory (usually ~/.config/mpv/watch_later/) if the file's modification time is the same as at the time of saving. This may prevent skipping forward in files with the same name which have different content. (Default: no)

--profile=<profile1,profile2,...>

Use the given profile(s), --profile=help displays a list of the defined profiles.

--reset-on-next-file=<all|option1,option2,...>

Normally, mpv will try to keep all settings when playing the next file on the playlist, even if they were changed by the user during playback. (This behavior is the opposite of MPlayer's, which tries to reset all settings when starting next file.)

Default: Do not reset anything.

This can be changed with this option. It accepts a list of options, and mpv will reset the value of these options on playback start to the initial value. The initial value is either the default value, or as set by the config file or command line.

In some cases, this might not work as expected. For example, --volume will only be reset if it is explicitly set in the config file or the command line.

The special name all resets as many options as possible.

This is a string list option. See List Options for details.

--watch-later-options=option1,option2,...

The options that are saved in "watch later" files if they have been changed since when mpv started. These values will be restored the next time the files are played. The playback position is always saved as start, so adding start to this list has no effect.

When removing options, existing watch later data won't be modified and will still be applied fully, but new watch later data won't contain these options.

This is a string list option. See List Options for details.

--write-filename-in-watch-later-config

Prepend the watch later config files with the name of the file they refer to. This is simply written as comment on the top of the file.

WARNING:

--ignore-path-in-watch-later-config

Ignore path (i.e. use filename only) when using watch later feature. (Default: disabled)

--show-profile=<profile>

Show the description and content of a profile. Lists all profiles if no parameter is provided.

--use-filedir-conf

Look for a file-specific configuration file in the same directory as the file that is being played. See File-specific Configuration Files.

WARNING:

--ytdl, --no-ytdl

Enable the youtube-dl hook-script. It will look at the input URL, and will play the video located on the website. This works with many streaming sites, not just the one that the script is named after. This requires a recent version of youtube-dl to be installed on the system. (Enabled by default.)

If the script can't do anything with an URL, it will do nothing.

This accepts a set of options, which can be passed to it with the --script-opts option (using ytdl_hook- as prefix):

--ytdl-format=<ytdl|best|worst|mp4|webm|...>

Video format/quality that is directly passed to youtube-dl. The possible values are specific to the website and the video, for a given url the available formats can be found with the command youtube-dl --list-formats URL. See youtube-dl's documentation for available aliases. (Default: bestvideo+bestaudio/best)

The ytdl value does not pass a --format option to youtube-dl at all, and thus does not override its default. Note that sometimes youtube-dl returns a format that mpv cannot use, and in these cases the mpv default may work better.

--ytdl-raw-options=<key>=<value>[,<key>=<value>[,...]]

Pass arbitrary options to youtube-dl. Parameter and argument should be passed as a key-value pair. Options without argument must include =.

There is no sanity checking so it's possible to break things (i.e. passing invalid parameters to youtube-dl).

A proxy URL can be passed for youtube-dl to use it in parsing the website. This is useful for geo-restricted URLs. After youtube-dl parsing, some URLs also require a proxy for playback, so this can pass that proxy information to mpv. Take note that SOCKS proxies aren't supported and https URLs also bypass the proxy. This is a limitation in FFmpeg.

This is a key/value list option. See List Options for details.

--load-stats-overlay=<yes|no>

Enable the builtin script that shows useful playback information on a key binding (default: yes). By default, the i key is used (I to make the overlay permanent).

--load-osd-console=<yes|no>

Enable the builtin script that shows a console on a key binding and lets you enter commands (default: yes). By default,. The ´ key is used to show the console, and ESC to hide it again. (This is based on a user script called repl.lua.)

--load-auto-profiles=<yes|no|auto>

Enable the builtin script that does auto profiles (default: auto). See Conditional auto profiles for details. auto will load the script, but immediately unload it if there are no conditional profiles.

--player-operation-mode=<cplayer|pseudo-gui>

For enabling "pseudo GUI mode", which means that the defaults for some options are changed. This option should not normally be used directly, but only by mpv internally, or mpv-provided scripts, config files, or .desktop files. See PSEUDO GUI MODE for details.

--vo=<driver>

Specify the video output backend to be used. See VIDEO OUTPUT DRIVERS for details and descriptions of available drivers.

--vd=<...>

Specify a priority list of video decoders to be used, according to their family and name. See --ad for further details. Both of these options use the same syntax and semantics; the only difference is that they operate on different codec lists.

NOTE:

--vf=<filter1[=parameter1:parameter2:...],filter2,...>

Specify a list of video filters to apply to the video stream. See VIDEO FILTERS for details and descriptions of the available filters. The option variants --vf-add, --vf-pre, --vf-del and --vf-clr exist to modify a previously specified list, but you should not need these for typical use.

--untimed

Do not sleep when outputting video frames. Useful for benchmarks when used with --no-audio.

--framedrop=<mode>

Skip displaying some frames to maintain A/V sync on slow systems, or playing high framerate video on video outputs that have an upper framerate limit.

The argument selects the drop methods, and can be one of the following:

NOTE:

--video-latency-hacks=<yes|no>

Enable some things which tend to reduce video latency by 1 or 2 frames (default: no). Note that this option might be removed without notice once the player's timing code does not inherently need to do these things anymore.

This does:

--override-display-fps=<fps>

Set the display FPS used with the --video-sync=display-* modes. By default, a detected value is used. Keep in mind that setting an incorrect value (even if slightly incorrect) can ruin video playback. On multi-monitor systems, there is a chance that the detected value is from the wrong monitor.

Set this option only if you have reason to believe the automatically determined value is wrong.

--display-fps=<fps>

Deprecated alias for --override-display-fps.

--hwdec=<api>

Specify the hardware video decoding API that should be used if possible. Whether hardware decoding is actually done depends on the video codec. If hardware decoding is not possible, mpv will fall back on software decoding.

Hardware decoding is not enabled by default, because it is typically an additional source of errors. It is worth using only if your CPU is too slow to decode a specific video.

NOTE:

Use one of the auto modes if you want to enable hardware decoding. Explicitly selecting the mode is mostly meant for testing and debugging. It's a bad idea to put explicit selection into the config file if you want thing to just keep working after updates and so on.

NOTE:

<api> can be one of the following:

auto tries to automatically enable hardware decoding using the first available method. This still depends what VO you are using. For example, if you are not using --vo=gpu or --vo=vdpau, vdpau decoding will never be enabled. Also note that if the first found method doesn't actually work, it will always fall back to software decoding, instead of trying the next method (might matter on some Linux systems).

auto-safe is similar to auto, but allows only whitelisted methods that are considered "safe". This is supposed to be a reasonable way to enable hardware decdoding by default in a config file (even though you shouldn't do that anyway; prefer runtime enabling with Ctrl+h). Unlike auto, this will not try to enable unknown or known-to-be-bad methods. In addition, this may disable hardware decoding in other situations when it's known to cause problems, but currently this mechanism is quite primitive. (As an example for something that still causes problems: certain combinations of HEVC and Intel chips on Windows tend to cause mpv to crash, most likely due to driver bugs.)

auto-copy-safe selects the union of methods selected with auto-safe and auto-copy.

auto-copy selects only modes that copy the video data back to system memory after decoding. This selects modes like vaapi-copy (and so on). If none of these work, hardware decoding is disabled. This mode is usually guaranteed to incur no additional quality loss compared to software decoding (assuming modern codecs and an error free video stream), and will allow CPU processing with video filters. This mode works with all video filters and VOs.

Because these copy the decoded video back to system RAM, they're often less efficient than the direct modes, and may not help too much over software decoding.

NOTE:

The vaapi mode, if used with --vo=gpu, requires Mesa 11, and most likely works with Intel and AMD GPUs only. It also requires the opengl EGL backend.

nvdec and nvdec-copy are the newest, and recommended method to do hardware decoding on Nvidia GPUs.

cuda and cuda-copy are an older implementation of hardware decoding on Nvidia GPUs that uses Nvidia's bitstream parsers rather than FFmpeg's. This can lead to feature deficiencies, such as incorrect playback of HDR content, and nvdec/nvdec-copy should always be preferred unless you specifically need Nvidia's deinterlacing algorithms. To use this deinterlacing you must pass the option: vd-lavc-o=deint=[weave|bob|adaptive]. Pass weave (or leave the option unset) to not attempt any deinterlacing.

--gpu-hwdec-interop=<auto|all|no|name>

This option is for troubleshooting hwdec interop issues. Since it's a debugging option, its semantics may change at any time.

This is useful for the gpu and libmpv VOs for selecting which hwdec interop context to use exactly. Effectively it also can be used to block loading of certain backends.

If set to auto (default), the behavior depends on the VO: for gpu, it does nothing, and the interop context is loaded on demand (when the decoder probes for --hwdec support). For libmpv, which has has no on-demand loading, this is equivalent to all.

The empty string is equivalent to auto.

If set to all, it attempts to load all interop contexts at GL context creation time.

Other than that, a specific backend can be set, and the list of them can be queried with help (mpv CLI only).

Runtime changes to this are ignored (the current option value is used whenever the renderer is created).

The old aliases --opengl-hwdec-interop and --hwdec-preload are barely related to this anymore, but will be somewhat compatible in some cases.

--hwdec-extra-frames=<N>

Number of GPU frames hardware decoding should preallocate (default: see --list-options output). If this is too low, frame allocation may fail during decoding, and video frames might get dropped and/or corrupted. Setting it too high simply wastes GPU memory and has no advantages.

This value is used only for hardware decoding APIs which require preallocating surfaces (known examples include d3d11va and vaapi). For other APIs, frames are allocated as needed. The details depend on the libavcodec implementations of the hardware decoders.

The required number of surfaces depends on dynamic runtime situations. The default is a fixed value that is thought to be sufficient for most uses. But in certain situations, it may not be enough.

--hwdec-image-format=<name>

Set the internal pixel format used by hardware decoding via --hwdec (default no). The special value no selects an implementation specific standard format. Most decoder implementations support only one format, and will fail to initialize if the format is not supported.

Some implementations might support multiple formats. In particular, videotoolbox is known to require uyvy422 for good performance on some older hardware. d3d11va can always use yuv420p, which uses an opaque format, with likely no advantages.

--cuda-decode-device=<auto|0..>

Choose the GPU device used for decoding when using the cuda or nvdec hwdecs with the OpenGL GPU backend, and with the cuda-copy or nvdec-copy hwdecs in all cases.

For the OpenGL GPU backend, the default device used for decoding is the one being used to provide gpu output (and in the vast majority of cases, only one GPU will be present).

For the copy hwdecs, the default device will be the first device enumerated by the CUDA libraries - however that is done.

For the Vulkan GPU backend, decoding must always happen on the display device, and this option has no effect.

--vaapi-device=<device file>

Choose the DRM device for vaapi-copy. This should be the path to a DRM device file. (Default: /dev/dri/renderD128)

--panscan=<0.0-1.0>

Enables pan-and-scan functionality (cropping the sides of e.g. a 16:9 video to make it fit a 4:3 display without black bands). The range controls how much of the image is cropped. May not work with all video output drivers.

This option has no effect if --video-unscaled option is used.

--video-aspect-override=<ratio|no>

Override video aspect ratio, in case aspect information is incorrect or missing in the file being played.

These values have special meaning:

But note that handling of these special values might change in the future.

--video-aspect-method=<bitstream|container>

This sets the default video aspect determination method (if the aspect is _not_ overridden by the user with --video-aspect-override or others).

The current default for mpv is container.

Normally you should not set this. Try the various choices if you encounter video that has the wrong aspect ratio in mpv, but seems to be correct in other players.

--video-unscaled=<no|yes|downscale-big>

Disable scaling of the video. If the window is larger than the video, black bars are added. Otherwise, the video is cropped, unless the option is set to downscale-big, in which case the video is fit to window. The video still can be influenced by the other --video-... options. This option disables the effect of --panscan.

Note that the scaler algorithm may still be used, even if the video isn't scaled. For example, this can influence chroma conversion. The video will also still be scaled in one dimension if the source uses non-square pixels (e.g. anamorphic widescreen DVDs).

This option is disabled if the --no-keepaspect option is used.

--video-pan-x=<value>, --video-pan-y=<value>

Moves the displayed video rectangle by the given value in the X or Y direction. The unit is in fractions of the size of the scaled video (the full size, even if parts of the video are not visible due to panscan or other options).

For example, displaying a 1280x720 video fullscreen on a 1680x1050 screen with --video-pan-x=-0.1 would move the video 168 pixels to the left (making 128 pixels of the source video invisible).

This option is disabled if the --no-keepaspect option is used.

--video-rotate=<0-359|no>

Rotate the video clockwise, in degrees. If no is given, the video is never rotated, even if the file has rotation metadata. (The rotation value is added to the rotation metadata, which means the value 0 would rotate the video according to the rotation metadata.)

When using hardware decoding without copy-back, only 90° steps work, while software decoding and hardware decoding methods that copy the video back to system memory support all values between 0 and 359.

--video-zoom=<value>

Adjust the video display scale factor by the given value. The parameter is given log 2. For example, --video-zoom=0 is unscaled, --video-zoom=1 is twice the size, --video-zoom=-2 is one fourth of the size, and so on.

This option is disabled if the --no-keepaspect option is used.

--video-scale-x=<value>, --video-scale-y=<value>

Multiply the video display size with the given value (default: 1.0). If a non-default value is used, this will be different from the window size, so video will be either cut off, or black bars are added.

This value is multiplied with the value derived from --video-zoom and the normal video aspect aspect ratio. This option is disabled if the --no-keepaspect option is used.

--video-align-x=<-1-1>, --video-align-y=<-1-1>

Moves the video rectangle within the black borders, which are usually added to pad the video to screen if video and screen aspect ratios are different. --video-align-y=-1 would move the video to the top of the screen (leaving a border only on the bottom), a value of 0 centers it (default), and a value of 1 would put the video at the bottom of the screen.

If video and screen aspect match perfectly, these options do nothing.

This option is disabled if the --no-keepaspect option is used.

--video-margin-ratio-left=<val>, --video-margin-ratio-right=<val>, --video-margin-ratio-top=<val>, --video-margin-ratio-bottom=<val>

Set extra video margins on each border (default: 0). Each value is a ratio of the window size, using a range 0.0-1.0. For example, setting the option --video-margin-ratio-right=0.2 at a window size of 1000 pixels will add a 200 pixels border on the right side of the window.

The video is "boxed" by these margins. The window size is not changed. In particular it does not enlarge the window, and the margins will cause the video to be downscaled by default. This may or may not change in the future.

The margins are applied after 90° video rotation, but before any other video transformations.

This option is disabled if the --no-keepaspect option is used.

Subtitles still may use the margins, depending on --sub-use-margins and similar options.

These options were created for the OSC. Some odd decisions, such as making the margin values a ratio (instead of pixels), were made for the sake of the OSC. It's possible that these options may be replaced by ones that are more generally useful. The behavior of these options may change to fit OSC requirements better, too.

--correct-pts, --no-correct-pts

--no-correct-pts switches mpv to a mode where video timing is determined using a fixed framerate value (either using the --fps option, or using file information). Sometimes, files with very broken timestamps can be played somewhat well in this mode. Note that video filters, subtitle rendering, seeking (including hr-seeks and backstepping), and audio synchronization can be completely broken in this mode.

--fps=<float>

Override video framerate. Useful if the original value is wrong or missing.

NOTE:

--deinterlace=<yes|no>

Enable or disable interlacing (default: no). Interlaced video shows ugly comb-like artifacts, which are visible on fast movement. Enabling this typically inserts the yadif video filter in order to deinterlace the video, or lets the video output apply deinterlacing if supported.

This behaves exactly like the deinterlace input property (usually mapped to d).

Keep in mind that this will conflict with manually inserted deinterlacing filters, unless you take care. (Since mpv 0.27.0, even the hardware deinterlace filters will conflict. Also since that version, --deinterlace=auto was removed, which used to mean that the default interlacing option of possibly inserted video filters was used.)

Note that this will make video look worse if it's not actually interlaced.

--frames=<number>

Play/convert only first <number> video frames, then quit.

--frames=0 loads the file, but immediately quits before initializing playback. (Might be useful for scripts which just want to determine some file properties.)

For audio-only playback, any value greater than 0 will quit playback immediately after initialization. The value 0 works as with video.

--video-output-levels=<outputlevels>

RGB color levels used with YUV to RGB conversion. Normally, output devices such as PC monitors use full range color levels. However, some TVs and video monitors expect studio RGB levels. Providing full range output to a device expecting studio level input results in crushed blacks and whites, the reverse in dim gray blacks and dim whites.

Not all VOs support this option. Some will silently ignore it.

Available color ranges are:

NOTE:

--hwdec-codecs=<codec1,codec2,...|all>

Allow hardware decoding for a given list of codecs only. The special value all always allows all codecs.

You can get the list of allowed codecs with mpv --vd=help. Remove the prefix, e.g. instead of lavc:h264 use h264.

By default, this is set to h264,vc1,hevc,vp8,vp9,av1. Note that the hardware acceleration special codecs like h264_vdpau are not relevant anymore, and in fact have been removed from Libav in this form.

This is usually only needed with broken GPUs, where a codec is reported as supported, but decoding causes more problems than it solves.

--vd-lavc-check-hw-profile=<yes|no>

Check hardware decoder profile (default: yes). If no is set, the highest profile of the hardware decoder is unconditionally selected, and decoding is forced even if the profile of the video is higher than that. The result is most likely broken decoding, but may also help if the detected or reported profiles are somehow incorrect.

--vd-lavc-software-fallback=<yes|no|N>

Fallback to software decoding if the hardware-accelerated decoder fails (default: 3). If this is a number, then fallback will be triggered if N frames fail to decode in a row. 1 is equivalent to yes.

Setting this to a higher number might break the playback start fallback: if a fallback happens, parts of the file will be skipped, approximately by to the number of packets that could not be decoded. Values below an unspecified count will not have this problem, because mpv retains the packets.

--vd-lavc-dr=<yes|no>

Enable direct rendering (default: yes). If this is set to yes, the video will be decoded directly to GPU video memory (or staging buffers). This can speed up video upload, and may help with large resolutions or slow hardware. This works only with the following VOs:

(In particular, this can't be made work with opengl-cb, but the libmpv render API has optional support.)

Using video filters of any kind that write to the image data (or output newly allocated frames) will silently disable the DR code path.

--vd-lavc-bitexact

Only use bit-exact algorithms in all decoding steps (for codec testing).

--vd-lavc-fast (MPEG-2, MPEG-4, and H.264 only)

Enable optimizations which do not comply with the format specification and potentially cause problems, like simpler dequantization, simpler motion compensation, assuming use of the default quantization matrix, assuming YUV 4:2:0 and skipping a few checks to detect damaged bitstreams.

--vd-lavc-o=<key>=<value>[,<key>=<value>[,...]]

Pass AVOptions to libavcodec decoder. Note, a patch to make the o= unneeded and pass all unknown options through the AVOption system is welcome. A full list of AVOptions can be found in the FFmpeg manual.

Some options which used to be direct options can be set with this mechanism, like bug, gray, idct, ec, vismv, skip_top (was st), skip_bottom (was sb), debug.

This is a key/value list option. See List Options for details.

--vd-lavc-show-all=<yes|no>

Show even broken/corrupt frames (default: no). If this option is set to no, libavcodec won't output frames that were either decoded before an initial keyframe was decoded, or frames that are recognized as corrupted.

--vd-lavc-skiploopfilter=<skipvalue> (H.264 only)

Skips the loop filter (AKA deblocking) during H.264 decoding. Since the filtered frame is supposed to be used as reference for decoding dependent 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 little visible quality loss.

<skipvalue> can be one of the following:

--vd-lavc-skipidct=<skipvalue> (MPEG-1/2 only)

Skips the IDCT step. This degrades quality a lot in almost all cases (see skiploopfilter for available skip values).

--vd-lavc-skipframe=<skipvalue>

Skips decoding of frames completely. Big speedup, but jerky motion and sometimes bad artifacts (see skiploopfilter for available skip values).

--vd-lavc-framedrop=<skipvalue>

Set framedropping mode used with --framedrop (see skiploopfilter for available skip values).

--vd-lavc-threads=<N>

Number of threads to use for decoding. Whether threading is actually supported depends on codec (default: 0). 0 means autodetect number of cores on the machine and use that, up to the maximum of 16. You can set more than 16 threads manually.

--vd-lavc-assume-old-x264=<yes|no>

Assume the video was encoded by an old, buggy x264 version (default: no). Normally, this is autodetected by libavcodec. But if the bitstream contains no x264 version info (or it was somehow skipped), and the stream was in fact encoded by an old x264 version (build 150 or earlier), and if the stream uses 4:4:4 chroma, then libavcodec will by default show corrupted video. This option sets the libavcodec x264_build option to 150, which means that if the stream contains no version info, or was not encoded by x264 at all, it assumes it was encoded by the old version. Enabling this option is pretty safe if you want your broken files to work, but in theory this can break on streams not encoded by x264, or if a stream encoded by a newer x264 version contains no version info.

--swapchain-depth=<N>

Allow up to N in-flight frames. This essentially controls the frame latency. Increasing the swapchain depth can improve pipelining and prevent missed vsyncs, but increases visible latency. This option only mandates an upper limit, the implementation can use a lower latency than requested internally. A setting of 1 means that the VO will wait for every frame to become visible before starting to render the next frame. (Default: 3)

--audio-pitch-correction=<yes|no>

If this is enabled (default), playing with a speed different from normal automatically inserts the scaletempo2 audio filter. For details, see audio filter section.

--audio-device=<name>

Use the given audio device. This consists of the audio output name, e.g. alsa, followed by /, followed by the audio output specific device name. The default value for this option is auto, which tries every audio output in preference order with the default device.

You can list audio devices with --audio-device=help. This outputs the device name in quotes, followed by a description. The device name is what you have to pass to the --audio-device option. The list of audio devices can be retrieved by API by using the audio-device-list property.

While the option normally takes one of the strings as indicated by the methods above, you can also force the device for most AOs by building it manually. For example name/foobar forces the AO name to use the device foobar. However, the --ao option will strictly force a specific AO. To avoid confusion, don't use --ao and --audio-device together.

--audio-exclusive=<yes|no>

Enable exclusive output mode. In this mode, the system is usually locked out, and only mpv will be able to output audio.

This only works for some audio outputs, such as wasapi and coreaudio. Other audio outputs silently ignore this options. They either have no concept of exclusive mode, or the mpv side of the implementation is missing.

--audio-fallback-to-null=<yes|no>

If no audio device can be opened, behave as if --ao=null was given. This is useful in combination with --audio-device: instead of causing an error if the selected device does not exist, the client API user (or a Lua script) could let playback continue normally, and check the current-ao and audio-device-list properties to make high-level decisions about how to continue.

--ao=<driver>

Specify the audio output drivers to be used. See AUDIO OUTPUT DRIVERS for details and descriptions of available drivers.

--af=<filter1[=parameter1:parameter2:...],filter2,...>

Specify a list of audio filters to apply to the audio stream. See AUDIO FILTERS for details and descriptions of the available filters. The option variants --af-add, --af-pre, --af-del and --af-clr exist to modify a previously specified list, but you should not need these for typical use.

--audio-spdif=<codecs>

List of codecs for which compressed audio passthrough should be used. This works for both classic S/PDIF and HDMI.

Possible codecs are ac3, dts, dts-hd, eac3, truehd. Multiple codecs can be specified by separating them with ,. dts refers to low bitrate DTS core, while dts-hd refers to DTS MA (receiver and OS support varies). If both dts and dts-hd are specified, it behaves equivalent to specifying dts-hd only.

In earlier mpv versions you could use --ad to force the spdif wrapper. This does not work anymore.

--ad=<decoder1,decoder2,...[-]>

Specify a priority list of audio decoders to be used, according to their decoder name. When determining which decoder to use, the first decoder that matches the audio format is selected. If that is unavailable, the next decoder is used. Finally, it tries all other decoders that are not explicitly selected or rejected by the option.

- at the end of the list suppresses fallback on other available decoders not on the --ad list. + in front of an entry forces the decoder. Both of these should not normally be used, because they break normal decoder auto-selection! Both of these methods are deprecated.

--volume=<value>

Set the startup volume. 0 means silence, 100 means no volume reduction or amplification. Negative values can be passed for compatibility, but are treated as 0.

Since mpv 0.18.1, this always controls the internal mixer (aka "softvol").

--replaygain=<no|track|album>

Adjust volume gain according to replaygain values stored in the file metadata. With --replaygain=no (the default), perform no adjustment. With --replaygain=track, apply track gain. With --replaygain=album, apply album gain if present and fall back to track gain otherwise.

--replaygain-preamp=<db>

Pre-amplification gain in dB to apply to the selected replaygain gain (default: 0).

--replaygain-clip=<yes|no>

Prevent clipping caused by replaygain by automatically lowering the gain (default). Use --replaygain-clip=no to disable this.

--replaygain-fallback=<db>

Gain in dB to apply if the file has no replay gain tags. This option is always applied if the replaygain logic is somehow inactive. If this is applied, no other replaygain options are applied.

--audio-delay=<sec>

Audio delay in seconds (positive or negative float value). Positive values delay the audio, and negative values delay the video.

--mute=<yes|no|auto>

Set startup audio mute status (default: no).

auto is a deprecated possible value that is equivalent to no.

See also: --volume.

--softvol=<no|yes|auto>

Deprecated/unfunctional. Before mpv 0.18.1, this used to control whether to use the volume controls of the audio output driver or the internal mpv volume filter.

The current behavior is that softvol is always enabled, i.e. as if this option is set to yes. The other behaviors are not available anymore, although auto almost matches current behavior in most cases.

The no behavior is still partially available through the ao-volume and ao-mute properties. But there are no options to reset these.

--audio-demuxer=<[+]name>

Use this audio demuxer type when using --audio-file. Use a '+' before the name to force it; this will skip some checks. Give the demuxer name as printed by --audio-demuxer=help.

--ad-lavc-ac3drc=<level>

Select the Dynamic Range Compression level for AC-3 audio streams. <level> is a float value ranging from 0 to 1, where 0 means no compression (which is the default) and 1 means full compression (make loud passages more silent and vice versa). Values up to 6 are also accepted, but are purely experimental. This option only shows an effect if the AC-3 stream contains the required range compression information.

The standard mandates that DRC is enabled by default, but mpv (and some other players) ignore this for the sake of better audio quality.

--ad-lavc-downmix=<yes|no>

Whether to request audio channel downmixing from the decoder (default: no). Some decoders, like AC-3, AAC and DTS, can remix audio on decoding. The requested number of output channels is set with the --audio-channels option. Useful for playing surround audio on a stereo system.

--ad-lavc-threads=<0-16>

Number of threads to use for decoding. Whether threading is actually supported depends on codec. As of this writing, it's supported for some lossless codecs only. 0 means autodetect number of cores on the machine and use that, up to the maximum of 16 (default: 1).

--ad-lavc-o=<key>=<value>[,<key>=<value>[,...]]

Pass AVOptions to libavcodec decoder. Note, a patch to make the o= unneeded and pass all unknown options through the AVOption system is welcome. A full list of AVOptions can be found in the FFmpeg manual.

This is a key/value list option. See List Options for details.

--ad-spdif-dtshd=<yes|no>, --dtshd, --no-dtshd

If DTS is passed through, use DTS-HD.

--audio-channels=<auto-safe|auto|layouts>

Control which audio channels are output (e.g. surround vs. stereo). There are the following possibilities:

If a list of layouts is given, each item can be either an explicit channel layout name (like 5.1), or a channel number. Channel numbers refer to default layouts, e.g. 2 channels refer to stereo, 6 refers to 5.1.

See --audio-channels=help output for defined default layouts. This also lists speaker names, which can be used to express arbitrary channel layouts (e.g. fl-fr-lfe is 2.1).

If the list of channel layouts has only 1 item, the decoder is asked to produce according output. This sometimes triggers decoder-downmix, which might be different from the normal mpv downmix. (Only some decoders support remixing audio, like AC-3, AAC or DTS. You can use --ad-lavc-downmix=no to make the decoder always output its native layout.) One consequence is that --audio-channels=stereo triggers decoder downmix, while auto or auto-safe never will, even if they end up selecting stereo. This happens because the decision whether to use decoder downmix happens long before the audio device is opened.

If the channel layout of the media file (i.e. the decoder) and the AO's channel layout don't match, mpv will attempt to insert a conversion filter. You may need to change the channel layout of the system mixer to achieve your desired output as mpv does not have control over it. Another work-around for this on some AOs is to use --audio-exclusive=yes to circumvent the system mixer entirely.

--audio-display=<no|embedded-first|external-first>

Determines whether to display cover art when playing audio files and with what priority. It will display the first image found, and additional images are available as video tracks.

This option has no influence on files with normal video tracks.

--audio-files=<files>

Play audio from an external file while viewing a video.

This is a path list option. See List Options for details.

--audio-file=<file>

CLI/config file only alias for --audio-files-append. Each use of this option will add a new audio track. The details are similar to how --sub-file works.

--audio-format=<format>

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.

--audio-samplerate=<Hz>

Select 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 lavrresample audio filter will be inserted into the audio filter layer to compensate for the difference.

--gapless-audio=<no|yes|weak>

Try to play consecutive audio files with no silence or disruption at the point of file change. Default: weak.

NOTE:

--initial-audio-sync, --no-initial-audio-sync

When starting a video file or after events such as seeking, mpv will by default modify the audio stream to make it start from the same timestamp as video, by either inserting silence at the start or cutting away the first samples. Disabling this option makes the player behave like older mpv versions did: video and audio are both started immediately even if their start timestamps differ, and then video timing is gradually adjusted if necessary to reach correct synchronization later.

--volume-max=<100.0-1000.0>, --softvol-max=<...>

Set the maximum amplification level in percent (default: 130). A value of 130 will allow you to adjust the volume up to about double the normal level.

--softvol-max is a deprecated alias and should not be used.

--audio-file-auto=<no|exact|fuzzy|all>, --no-audio-file-auto

Load additional audio files matching the video filename. The parameter specifies how external audio files are matched.

--audio-file-paths=<path1:path2:...>

Equivalent to --sub-file-paths option, but for auto-loaded audio files.

This is a path list option. See List Options for details.

--audio-client-name=<name>

The application name the player reports to the audio API. Can be useful if you want to force a different audio profile (e.g. with PulseAudio), or to set your own application name when using libmpv.

--audio-buffer=<seconds>

Set the audio output minimum buffer. The audio device might actually create a larger buffer if it pleases. If the device creates a smaller buffer, additional audio is buffered in an additional software buffer.

Making this larger will make soft-volume and other filters react slower, introduce additional issues on playback speed change, and block the player on audio format changes. A smaller buffer might lead to audio dropouts.

This option should be used for testing only. If a non-default value helps significantly, the mpv developers should be contacted.

Default: 0.2 (200 ms).

--audio-stream-silence=<yes|no>

Cash-grab consumer audio hardware (such as A/V receivers) often ignore initial audio sent over HDMI. This can happen every time audio over HDMI is stopped and resumed. In order to compensate for this, you can enable this option to not to stop and restart audio on seeks, and fill the gaps with silence. Likewise, when pausing playback, audio is not stopped, and silence is played while paused. Note that if no audio track is selected, the audio device will still be closed immediately.

Not all AOs support this.

--audio-wait-open=<secs>

This makes sense for use with --audio-stream-silence=yes. If this option is given, the player will wait for the given amount of seconds after opening the audio device before sending actual audio data to it. Useful if your expensive hardware discards the first 1 or 2 seconds of audio data sent to it. If --audio-stream-silence=yes is not set, this option will likely just waste time.

--sub-demuxer=<[+]name>

Force subtitle demuxer type for --sub-file. Give the demuxer name as printed by --sub-demuxer=help.

--sub-delay=<sec>

Delays subtitles by <sec> seconds. Can be negative.

--sub-files=<file-list>, --sub-file=<filename>

Add a subtitle file to the list of external subtitles.

If you use --sub-file only once, this subtitle file is displayed by default.

If --sub-file is used multiple times, the subtitle to use can be switched at runtime by cycling subtitle tracks. It's possible to show two subtitles at once: use --sid to select the first subtitle index, and --secondary-sid to select the second index. (The index is printed on the terminal output after the --sid= in the list of streams.)

--sub-files is a path list option (see List Options for details), and can take multiple file names separated by : (Unix) or ; (Windows), while --sub-file takes a single filename, but can be used multiple times to add multiple files. Technically, --sub-file is a CLI/config file only alias for --sub-files-append.

--secondary-sid=<ID|auto|no>

Select a secondary subtitle stream. This is similar to --sid. If a secondary subtitle is selected, it will be rendered as toptitle (i.e. on the top of the screen) alongside the normal subtitle, and provides a way to render two subtitles at once.

There are some caveats associated with this feature. For example, bitmap subtitles will always be rendered in their usual position, so selecting a bitmap subtitle as secondary subtitle will result in overlapping subtitles. Secondary subtitles are never shown on the terminal if video is disabled.

NOTE:

NOTE:

--sub-scale=<0-100>

Factor for the text subtitle font size (default: 1).

NOTE:

--sub-scale-by-window=<yes|no>

Whether to scale subtitles with the window size (default: yes). If this is disabled, changing the window size won't change the subtitle font size.

Like --sub-scale, this can break ASS subtitles.

--sub-scale-with-window=<yes|no>

Make the subtitle font size relative to the window, instead of the video. This is useful if you always want the same font size, even if the video doesn't cover the window fully, e.g. because screen aspect and window aspect mismatch (and the player adds black bars).

Default: yes.

This option is misnamed. The difference to the confusingly similar sounding option --sub-scale-by-window is that --sub-scale-with-window still scales with the approximate window size, while the other option disables this scaling.

Affects plain text subtitles only (or ASS if --sub-ass-override is set high enough).

--sub-ass-scale-with-window=<yes|no>

Like --sub-scale-with-window, but affects subtitles in ASS format only. Like --sub-scale, this can break ASS subtitles.

Default: no.

--embeddedfonts=<yes|no>

Use fonts embedded in Matroska container files and ASS scripts (default: yes). These fonts can be used for SSA/ASS subtitle rendering.

--sub-pos=<0-150>

Specify the position of subtitles on the screen. The value is the vertical position of the subtitle in % of the screen height. 100 is the original position, which is often not the absolute bottom of the screen, but with some margin between the bottom and the subtitle. Values above 100 move the subtitle further down.

--sub-speed=<0.1-10.0>

Multiply the subtitle event timestamps with the given value. Can be used to fix the playback speed for frame-based subtitle formats. Affects text subtitles only.

--sub-ass-force-style=<[Style.]Param=Value[,...]>

Override some style or script info parameters.

This is a string list option. See List Options for details.

NOTE:

--sub-ass-hinting=<none|light|normal|native>

Set font hinting type. <type> can be:

--sub-ass-line-spacing=<value>

Set line spacing value for SSA/ASS renderer.

--sub-ass-shaper=<simple|complex>

Set the text layout engine used by libass.

complex is the default. If libass hasn't been compiled against HarfBuzz, libass silently reverts to simple.

--sub-ass-styles=<filename>

Load all SSA/ASS styles found in the specified file and use them for rendering text subtitles. The syntax of the file is exactly like the [V4 Styles] / [V4+ Styles] section of SSA/ASS.

NOTE:

--sub-ass-override=<yes|no|force|scale|strip>

Control whether user style overrides should be applied. Note that all of these overrides try to be somewhat smart about figuring out whether or not a subtitle is considered a "sign".

This also controls some bitmap subtitle overrides, as well as HTML tags in formats like SRT, despite the name of the option.

--sub-ass-force-margins

Enables placing toptitles and subtitles in black borders when they are available, if the subtitles are in the ASS format.

Default: no.

--sub-use-margins

Enables placing toptitles and subtitles in black borders when they are available, if the subtitles are in a plain text format (or ASS if --sub-ass-override is set high enough).

Default: yes.

Renamed from --sub-ass-use-margins. To place ASS subtitles in the borders too (like the old option did), also add --sub-ass-force-margins.

--sub-ass-vsfilter-aspect-compat=<yes|no>

Stretch SSA/ASS subtitles when playing anamorphic videos for compatibility with traditional VSFilter behavior. This switch has no effect when the video is stored with square pixels.

The renderer historically most commonly used for the SSA/ASS subtitle formats, VSFilter, had questionable behavior that resulted in subtitles being stretched too if the video was stored in anamorphic format that required scaling for display. This behavior is usually undesirable and newer VSFilter versions may behave differently. However, many existing scripts compensate for the stretching by modifying things in the opposite direction. Thus, if such scripts are displayed "correctly", they will not appear as intended. This switch enables emulation of the old VSFilter behavior (undesirable but expected by many existing scripts).

Enabled by default.

--sub-ass-vsfilter-blur-compat=<yes|no>

Scale \blur tags by video resolution instead of script resolution (enabled by default). This is bug in VSFilter, which according to some, can't be fixed anymore in the name of compatibility.

Note that this uses the actual video resolution for calculating the offset scale factor, not what the video filter chain or the video output use.

--sub-ass-vsfilter-color-compat=<basic|full|force-601|no>

Mangle colors like (xy-)vsfilter do (default: basic). Historically, VSFilter was not color space aware. This was no problem as long as the color space used for SD video (BT.601) was used. But when everything switched to HD (BT.709), VSFilter was still converting RGB colors to BT.601, rendered them into the video frame, and handled the frame to the video output, which would use BT.709 for conversion to RGB. The result were mangled subtitle colors. Later on, bad hacks were added on top of the ASS format to control how colors are to be mangled.

Choosing anything other than no will make the subtitle color depend on the video color space, and it's for example in theory not possible to reuse a subtitle script with another video file. The --sub-ass-override option doesn't affect how this option is interpreted.

--stretch-dvd-subs=<yes|no>

Stretch DVD subtitles when playing anamorphic videos for better looking fonts on badly mastered DVDs. This switch has no effect when the video is stored with square pixels - which for DVD input cannot be the case though.

Many studios tend to use bitmap fonts designed for square pixels when authoring DVDs, causing the fonts to look stretched on playback on DVD players. This option fixes them, however at the price of possibly misaligning some subtitles (e.g. sign translations).

Disabled by default.

--stretch-image-subs-to-screen=<yes|no>

Stretch DVD and other image subtitles to the screen, ignoring the video margins. This has a similar effect as --sub-use-margins for text subtitles, except that the text itself will be stretched, not only just repositioned. (At least in general it is unavoidable, as an image bitmap can in theory consist of a single bitmap covering the whole screen, and the player won't know where exactly the text parts are located.)

This option does not display subtitles correctly. Use with care.

Disabled by default.

--image-subs-video-resolution=<yes|no>

Override the image subtitle resolution with the video resolution (default: no). Normally, the subtitle canvas is fit into the video canvas (e.g. letterboxed). Setting this option uses the video size as subtitle canvas size. Can be useful to test broken subtitles, which often happen when the video was trancoded, while attempting to keep the old subtitles.

--sub-ass, --no-sub-ass

Render ASS subtitles natively (enabled by default).

NOTE:

If --no-sub-ass is specified, all tags and style declarations are stripped and ignored on display. The subtitle renderer uses the font style as specified by the --sub- options instead.

NOTE:

--sub-auto=<no|exact|fuzzy|all>, --no-sub-auto

Load additional subtitle files matching the video filename. The parameter specifies how external subtitle files are matched. exact is enabled by default.

--sub-codepage=<codepage>

You can use this option to specify the subtitle codepage. uchardet will be used to guess the charset. (If mpv was not compiled with uchardet, then utf-8 is the effective default.)

The default value for this option is auto, which enables autodetection.

The following steps are taken to determine the final codepage, in order:

The pseudo codepage UTF-8-BROKEN is used internally. If it's set, subtitles are interpreted as UTF-8 with "Latin 1" as fallback for bytes which are not valid UTF-8 sequences. iconv is never involved in this mode.

This option changed in mpv 0.23.0. Support for the old syntax was fully removed in mpv 0.24.0.

NOTE:

--sub-fix-timing=<yes|no>

Adjust subtitle timing is to remove minor gaps or overlaps between subtitles (if the difference is smaller than 210 ms, the gap or overlap is removed).

--sub-forced-only=<auto|yes|no>

Display only forced subtitles for the DVD subtitle stream selected by e.g. --slang (default: auto). When set to auto, enabled when the --subs-with-matching-audio option is on and a non-forced stream is selected. Enabling this will hide all subtitles in streams that don't make a distinction between forced and unforced events within a stream.

--sub-fps=<rate>

Specify the framerate of the subtitle file (default: video fps). Affects text subtitles only.

NOTE:

See also: --sub-speed.

--sub-gauss=<0.0-3.0>

Apply Gaussian blur to image subtitles (default: 0). This can help to make pixelated DVD/Vobsubs look nicer. A value other than 0 also switches to software subtitle scaling. Might be slow.

NOTE:

--sub-gray

Convert image subtitles to grayscale. Can help to make yellow DVD/Vobsubs look nicer.

NOTE:

--sub-paths=<path1:path2:...>

Deprecated, use --sub-file-paths.

--sub-file-paths=<path-list>

Specify extra directories to search for subtitles matching the video. Multiple directories can be separated by ":" (";" on Windows). Paths can be relative or absolute. Relative paths are interpreted relative to video file directory. If the file is a URL, only absolute paths and sub configuration subdirectory will be scanned.

This is a path list option. See List Options for details.

--sub-visibility, --no-sub-visibility

Can be used to disable display of subtitles, but still select and decode them.

--secondary-sub-visibility, --no-secondary-sub-visibility

Can be used to disable display of secondary subtitles, but still select and decode them.

NOTE:

--sub-clear-on-seek

(Obscure, rarely useful.) Can be used to play broken mkv files with duplicate ReadOrder fields. ReadOrder is the first field in a Matroska-style ASS subtitle packets. It should be unique, and libass uses it for fast elimination of duplicates. This option disables caching of subtitles across seeks, so after a seek libass can't eliminate subtitle packets with the same ReadOrder as earlier packets.

--teletext-page=<1-999>

This works for dvb_teletext subtitle streams, and if FFmpeg has been compiled with support for it.

--sub-past-video-end

After the last frame of video, if this option is enabled, subtitles will continue to update based on audio timestamps. Otherwise, the subtitles for the last video frame will stay onscreen.

Default: disabled

--sub-font=<name>

Specify font to use for subtitles that do not themselves specify a particular font. The default is sans-serif.

NOTE:

--sub-font-size=<size>

Specify the sub font size. The unit is the size in scaled pixels at a window height of 720. The actual pixel size is scaled with the window height: if the window height is larger or smaller than 720, the actual size of the text increases or decreases as well.

Default: 55.

--sub-back-color=<color>

See --sub-color. Color used for sub text background. You can use --sub-shadow-offset to change its size relative to the text.

--sub-blur=<0..20.0>

Gaussian blur factor. 0 means no blur applied (default).

--sub-bold=<yes|no>

Format text on bold.

--sub-italic=<yes|no>

Format text on italic.

--sub-border-color=<color>

See --sub-color. Color used for the sub font border.

NOTE:

--sub-border-size=<size>

Size of the sub font border in scaled pixels (see --sub-font-size for details). A value of 0 disables borders.

Default: 3.

--sub-color=<color>

Specify the color used for unstyled text subtitles.

The color is specified in the form r/g/b, where each color component is specified as number in the range 0.0 to 1.0. It's also possible to specify the transparency by using r/g/b/a, where the alpha value 0 means fully transparent, and 1.0 means opaque. If the alpha component is not given, the color is 100% opaque.

Passing a single number to the option sets the sub to gray, and the form gray/a lets you specify alpha additionally.

Alternatively, the color can be specified as a RGB hex triplet in the form #RRGGBB, where each 2-digit group expresses a color value in the range 0 (00) to 255 (FF). For example, #FF0000 is red. This is similar to web colors. Alpha is given with #AARRGGBB.

--sub-margin-x=<size>

Left and right screen margin for the subs in scaled pixels (see --sub-font-size for details).

This option specifies the distance of the sub to the left, as well as at which distance from the right border long sub text will be broken.

Default: 25.

--sub-margin-y=<size>

Top and bottom screen margin for the subs in scaled pixels (see --sub-font-size for details).

This option specifies the vertical margins of unstyled text subtitles. If you just want to raise the vertical subtitle position, use --sub-pos.

Default: 22.

--sub-align-x=<left|center|right>

Control to which corner of the screen text subtitles should be aligned to (default: center).

Never applied to ASS subtitles, except in --no-sub-ass mode. Likewise, this does not apply to image subtitles.

--sub-align-y=<top|center|bottom>

Vertical position (default: bottom). Details see --sub-align-x.

--sub-justify=<auto|left|center|right>

Control how multi line subs are justified irrespective of where they are aligned (default: auto which justifies as defined by --sub-align-y). Left justification is recommended to make the subs easier to read as it is easier for the eyes.

--sub-ass-justify=<yes|no>

Applies justification as defined by --sub-justify on ASS subtitles if --sub-ass-override is not set to no. Default: no.

--sub-shadow-color=<color>

See --sub-color. Color used for sub text shadow.

--sub-shadow-offset=<size>

Displacement of the sub text shadow in scaled pixels (see --sub-font-size for details). A value of 0 disables shadows.

Default: 0.

--sub-spacing=<size>

Horizontal sub font spacing in scaled pixels (see --sub-font-size for details). This value is added to the normal letter spacing. Negative values are allowed.

Default: 0.

--sub-filter-sdh=<yes|no>

Applies filter removing subtitle additions for the deaf or hard-of-hearing (SDH). This is intended for English, but may in part work for other languages too. The intention is that it can be always enabled so may not remove all parts added. It removes speaker labels (like MAN:), upper case text in parentheses and any text in brackets.

Default: no.

--sub-filter-sdh-harder=<yes|no>

Do harder SDH filtering (if enabled by --sub-filter-sdh). Will also remove speaker labels and text within parentheses using both lower and upper case letters.

Default: no.

--sub-filter-regex-...=...

Set a list of regular expressions to match on text subtitles, and remove any lines that match (default: empty). This is a string list option. See List Options for details. Normally, you should use --sub-filter-regex-append=<regex>, where each option use will append a new regular expression, without having to fight escaping problems.

List items are matched in order. If a regular expression matches, the process is stopped, and the subtitle line is discarded. The text matched against is, by default, the Text field of ASS events (if the subtitle format is different, it is always converted). This may include formatting tags. Matching is case-insensitive, but how this is done depends on the libc, and most likely works in ASCII only. It does not work on bitmap/image subtitles. Unavailable on inferior OSes (requires POSIX regex support).

Technically, using a list for matching is redundant, since you could just use a single combined regular expression. But it helps with diagnosis, ease of use, and temporarily disabling or enabling individual filters.

WARNING:

--sub-filter-jsre-...=...

Same as --sub-filter-regex but with JavaScript regular expressions. Shares/affected-by all --sub-filter-regex-* control options (see below), and also experimental. Requires only JavaScript support.

--sub-filter-regex-plain=<yes|no>

Whether to first convert the ASS "Text" field to plain-text (default: no). This strips ASS tags and applies ASS directives, like \N to new-line. If the result is multi-line then the regexp anchors ^ and $ match each line, but still any match discards all lines.

--sub-filter-regex-warn=<yes|no>

Log dropped lines with warning log level, instead of verbose (default: no). Helpful for testing.

--sub-filter-regex-enable=<yes|no>

Whether to enable regex filtering (default: yes). Note that if no regexes are added to the --sub-filter-regex list, setting this option to yes has no effect. It's meant to easily disable or enable filtering temporarily.

--sub-create-cc-track=<yes|no>

For every video stream, create a closed captions track (default: no). The only purpose is to make the track available for selection at the start of playback, instead of creating it lazily. This applies only to ATSC A53 Part 4 Closed Captions (displayed by mpv as subtitle tracks using the codec eia_608). The CC track is marked "default" and selected according to the normal subtitle track selection rules. You can then use --sid to explicitly select the correct track too.

If the video stream contains no closed captions, or if no video is being decoded, the CC track will remain empty and will not show any text.

--sub-font-provider=<auto|none|fontconfig>

Which libass font provider backend to use (default: auto). auto will attempt to use the native font provider: fontconfig on Linux, CoreText on macOS, DirectWrite on Windows. fontconfig forces fontconfig, if libass was built with support (if not, it behaves like none).

The none font provider effectively disables system fonts. It will still attempt to use embedded fonts (unless --embeddedfonts=no is set; this is the same behavior as with all other font providers), subfont.ttf if provided, and fonts in the fonts sub-directory if provided. (The fallback is more strict than that of other font providers, and if a font name does not match, it may prefer not to render any text that uses the missing font.)

--title=<string>

Set the window title. This is used for the video window, and if possible, also sets the audio stream title.

Properties are expanded. (See Property Expansion.)

WARNING:

--screen=<default|0-32>

In multi-monitor configurations (i.e. a single desktop that spans across multiple displays), this option tells mpv which screen to display the video on.

See also --fs-screen.

--screen-name=<string>

In multi-monitor configurations, this option tells mpv which screen to display the video on based on the screen name from the video backend. The same caveats in the --screen option also apply here. This option is ignored and does nothing if --screen is explicitly set.

--fullscreen, --fs

Fullscreen playback.

--fs-screen=<all|current|0-32>

In multi-monitor configurations (i.e. a single desktop that spans across multiple displays), this option tells mpv which screen to go fullscreen to. If current is used mpv will fallback on what the user provided with the screen option.

See also --screen.

--fs-screen-name=<string>

In multi-monitor configurations, this option tells mpv which screen to go fullscreen to based on the screen name from the video backend. The same caveats in the --fs-screen option also apply here. This option is ignored and does nothing if --fs-screen is explicitly set.

--keep-open=<yes|no|always>

Do not terminate when playing or seeking beyond the end of the file, and there is not next file to be played (and --loop is not used). Instead, pause the player. When trying to seek beyond end of the file, the player will attempt to seek to the last frame.

Normally, this will act like set pause yes on EOF, unless the --keep-open-pause=no option is set.

The following arguments can be given:

NOTE:

Since mpv 0.6.0, this doesn't pause if there is a next file in the playlist, or the playlist is looped. Approximately, this will pause when the player would normally exit, but in practice there are corner cases in which this is not the case (e.g. mpv --keep-open file.mkv /dev/null will play file.mkv normally, then fail to open /dev/null, then exit). (In mpv 0.8.0, always was introduced, which restores the old behavior.)

--keep-open-pause=<yes|no>

If set to no, instead of pausing when --keep-open is active, just stop at end of file and continue playing forward when you seek backwards until end where it stops again. Default: yes.

--image-display-duration=<seconds|inf>

If the current file is an image, play the image for the given amount of seconds (default: 1). inf means the file is kept open forever (until the user stops playback manually).

Unlike --keep-open, the player is not paused, but simply continues playback until the time has elapsed. (It should not use any resources during "playback".)

This affects image files, which are defined as having only 1 video frame and no audio. The player may recognize certain non-images as images, for example if --length is used to reduce the length to 1 frame, or if you seek to the last frame.

This option does not affect the framerate used for mf:// or --merge-files. For that, use --mf-fps instead.

Setting --image-display-duration hides the OSC and does not track playback time on the command-line output, and also does not duplicate the image frame when encoding. To force the player into "dumb mode" and actually count out seconds, or to duplicate the image when encoding, you need to use --demuxer=lavf --demuxer-lavf-o=loop=1, and use --length or --frames to stop after a particular time.

--force-window=<yes|no|immediate>

Create a video output window even if there is no video. This can be useful when pretending that mpv is a GUI application. Currently, the window always has the size 640x480, and is subject to --geometry, --autofit, and similar options.

WARNING:

--taskbar-progress, --no-taskbar-progress

(Windows only) Enable/disable playback progress rendering in taskbar (Windows 7 and above).

Enabled by default.

--snap-window

(Windows only) Snap the player window to screen edges.

--ontop

Makes the player window stay on top of other windows.

On Windows, if combined with fullscreen mode, this causes mpv to be treated as exclusive fullscreen window that bypasses the Desktop Window Manager.

--ontop-level=<window|system|desktop|level>

(macOS only) Sets the level of an ontop window (default: window).

--focus-on-open, --no-focus-on-open

(macOS only) Focus the video window on creation and makes it the front most window. This is on by default.

--border, --no-border

Play video with window border and decorations. Since this is on by default, use --no-border to disable the standard window decorations.

--on-all-workspaces

(X11 and macOS only) Show the video window on all virtual desktops.

--geometry=<[W[xH]][+-x+-y][/WS]>, --geometry=<x:y>

Adjust the initial window position or size. W and H set the window size in pixels. x and y set the window position, measured in pixels from the top-left corner of the screen to the top-left corner of the image being displayed. If a percentage sign (%) is given after the argument, it turns the value into a percentage of the screen size in that direction. Positions are specified similar to the standard X11 --geometry option format, in which e.g. +10-50 means "place 10 pixels from the left border and 50 pixels from the lower border" and "--20+-10" means "place 20 pixels beyond the right and 10 pixels beyond the top border". A trailing / followed by an integer denotes on which workspace (virtual desktop) the window should appear (X11 only).

If an external window is specified using the --wid option, this option is ignored.

The coordinates are relative to the screen given with --screen for the video output drivers that fully support --screen.

NOTE:

See also --autofit and --autofit-larger for fitting the window into a given size without changing aspect ratio.

--autofit=<[W[xH]]>

Set the initial window size to a maximum size specified by WxH, without changing the window's aspect ratio. The size is measured in pixels, or if a number is followed by a percentage sign (%), in percents of the screen size.

This option never changes the aspect ratio of the window. If the aspect ratio mismatches, the window's size is reduced until it fits into the specified size.

Window position is not taken into account, nor is it modified by this option (the window manager still may place the window differently depending on size). Use --geometry to change the window position. Its effects are applied after this option.

See --geometry for details how this is handled with multi-monitor setups.

Use --autofit-larger instead if you just want to limit the maximum size of the window, rather than always forcing a window size.

Use --geometry if you want to force both window width and height to a specific size.

NOTE:

--autofit-larger=<[W[xH]]>

This option behaves exactly like --autofit, except the window size is only changed if the window would be larger than the specified size.

--autofit-smaller=<[W[xH]]>

This option behaves exactly like --autofit, except that it sets the minimum size of the window (just as --autofit-larger sets the maximum).

--window-scale=<factor>

Resize the video window to a multiple (or fraction) of the video size. This option is applied before --autofit and other options are applied (so they override this option).

For example, --window-scale=0.5 would show the window at half the video size.

--window-minimized=<yes|no>

Whether the video window is minimized or not. Setting this will minimize, or unminimize, the video window if the current VO supports it. Note that some VOs may support minimization while not supporting unminimization (eg: Wayland).

Whether this option and --window-maximized work on program start or at runtime, and whether they're (at runtime) updated to reflect the actual window state, heavily depends on the VO and the windowing system. Some VOs simply do not implement them or parts of them, while other VOs may be restricted by the windowing systems (especially Wayland).

--window-maximized=<yes|no>

Whether the video window is maximized or not. Setting this will maximize, or unmaximize, the video window if the current VO supports it. See --window-minimized for further remarks.

--cursor-autohide=<number|no|always>

Make mouse cursor automatically hide after given number of milliseconds. no will disable cursor autohide. always means the cursor will stay hidden.

--cursor-autohide-fs-only

If this option is given, the cursor is always visible in windowed mode. In fullscreen mode, the cursor is shown or hidden according to --cursor-autohide.

--no-fixed-vo, --fixed-vo

--no-fixed-vo enforces closing and reopening the video window for multiple files (one (un)initialization for each file).

--force-rgba-osd-rendering

Change how some video outputs render the OSD and text subtitles. This does not change appearance of the subtitles and only has performance implications. For VOs which support native ASS rendering (like gpu, vdpau, direct3d), this can be slightly faster or slower, depending on GPU drivers and hardware. For other VOs, this just makes rendering slower.

--force-window-position

Forcefully move mpv's video output window to default location whenever there is a change in video parameters, video stream or file. This used to be the default behavior. Currently only affects X11 VOs.

--no-keepaspect, --keepaspect

--no-keepaspect will always stretch the video to window size, and will disable the window manager hints that force the window aspect ratio. (Ignored in fullscreen mode.)

--no-keepaspect-window, --keepaspect-window

--keepaspect-window (the default) will lock the window size to the video aspect. --no-keepaspect-window disables this behavior, and will instead add black bars if window aspect and video aspect mismatch. Whether this actually works depends on the VO backend. (Ignored in fullscreen mode.)

--monitoraspect=<ratio>

Set the aspect ratio of your monitor or TV screen. A value of 0 disables a previous setting (e.g. in the config file). Overrides the --monitorpixelaspect setting if enabled.

See also --monitorpixelaspect and --video-aspect-override.

--hidpi-window-scale, --no-hidpi-window-scale

(macOS, Windows, X11, and Wayland only) Scale the window size according to the backing scale factor (default: yes). On regular HiDPI resolutions the window opens with double the size but appears as having the same size as on non-HiDPI resolutions. This is enabled by default on macOS.

--native-fs, --no-native-fs

(macOS only) Uses the native fullscreen mechanism of the OS (default: yes).

--monitorpixelaspect=<ratio>

Set the aspect of a single pixel of your monitor or TV screen (default: 1). A value of 1 means square pixels (correct for (almost?) all LCDs). See also --monitoraspect and --video-aspect-override.

--stop-screensaver, --no-stop-screensaver

Turns off the screensaver (or screen blanker and similar mechanisms) at startup and turns it on again on exit (default: yes). The screensaver is always re-enabled when the player is paused.

This is not supported on all video outputs or platforms. Sometimes it is implemented, but does not work (especially with Linux "desktops"). Read the Disabling Screensaver section very carefully.

--wid=<ID>

This tells mpv to attach to an existing window. If a VO is selected that supports this option, it will use that window for video output. mpv will scale the video to the size of this window, and will add black bars to compensate if the aspect ratio of the video is different.

On X11, the ID is interpreted as a Window on X11. Unlike MPlayer/mplayer2, mpv always creates its own window, and sets the wid window as parent. The window will always be resized to cover the parent window fully. The value 0 is interpreted specially, and mpv will draw directly on the root window.

On win32, the ID is interpreted as HWND. Pass it as value cast to intptr_t. mpv will create its own window, and set the wid window as parent, like with X11.

On macOS/Cocoa, the ID is interpreted as NSView*. Pass it as value cast to intptr_t. mpv will create its own sub-view. Because macOS does not support window embedding of foreign processes, this works only with libmpv, and will crash when used from the command line.

On Android, the ID is interpreted as android.view.Surface. Pass it as a value cast to intptr_t. Use with --vo=mediacodec_embed and --hwdec=mediacodec for direct rendering using MediaCodec, or with --vo=gpu --gpu-context=android (with or without --hwdec=mediacodec-copy).

--no-window-dragging

Don't move the window when clicking on it and moving the mouse pointer.

--x11-name

Set the window class name for X11-based video output methods.

--x11-netwm=<yes|no|auto>

(X11 only) Control the use of NetWM protocol features.

This may or may not help with broken window managers. This provides some functionality that was implemented by the now removed --fstype option. Actually, it is not known to the developers to which degree this option was needed, so feedback is welcome.

Specifically, yes will force use of NetWM fullscreen support, even if not advertised by the WM. This can be useful for WMs that are broken on purpose, like XMonad. (XMonad supposedly doesn't advertise fullscreen support, because Flash uses it. Apparently, applications which want to use fullscreen anyway are supposed to either ignore the NetWM support hints, or provide a workaround. Shame on XMonad for deliberately breaking X protocols (as if X isn't bad enough already).

By default, NetWM support is autodetected (auto).

This option might be removed in the future.

--x11-bypass-compositor=<yes|no|fs-only|never>

If set to yes, then ask the compositor to unredirect the mpv window (default: fs-only). This uses the _NET_WM_BYPASS_COMPOSITOR hint.

fs-only asks the window manager to disable the compositor only in fullscreen mode.

no sets _NET_WM_BYPASS_COMPOSITOR to 0, which is the default value as declared by the EWMH specification, i.e. no change is done.

never asks the window manager to never disable the compositor.

--cdrom-device=<path>

Specify the CD-ROM device (default: /dev/cdrom).

--dvd-device=<path>

Specify the DVD device or .iso filename (default: /dev/dvd). You can also specify a directory that contains files previously copied directly from a DVD (with e.g. vobcopy).

--bluray-device=<path>

(Blu-ray only) Specify the Blu-ray disc location. Must be a directory with Blu-ray structure.

--cdda-...

These options can be used to tune the CD Audio reading feature of mpv.

--cdda-speed=<value>

Set CD spin speed.

--cdda-paranoia=<0-2>

Set paranoia level. Values other than 0 seem to break playback of anything but the first track.

--cdda-sector-size=<value>

Set atomic read size.

--cdda-overlap=<value>

Force minimum overlap search during verification to <value> sectors.

--cdda-toc-bias

Assume that the beginning offset of track 1 as reported in the TOC will be addressed as LBA 0. Some discs need this for getting track boundaries correctly.

--cdda-toc-offset=<value>

Add <value> sectors to the values reported when addressing tracks. May be negative.

--cdda-skip=<yes|no>

(Never) accept imperfect data reconstruction.

--cdda-cdtext=<yes|no>

Print CD text. This is disabled by default, because it ruins performance with CD-ROM drives for unknown reasons.

--dvd-speed=<speed>

Try to limit DVD speed (default: 0, no change). DVD base speed is 1385 kB/s, so an 8x drive can read at speeds up to 11080 kB/s. Slower speeds make the drive more quiet. For watching DVDs, 2700 kB/s should be quiet and fast enough. mpv resets the speed to the drive default value on close. Values of at least 100 mean speed in kB/s. Values less than 100 mean multiples of 1385 kB/s, i.e. --dvd-speed=8 selects 11080 kB/s.

NOTE:

--dvd-angle=<ID>

Some DVDs contain scenes that can be viewed from multiple angles. This option tells mpv which angle to use (default: 1).

--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.

--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.

--gamma=<-100-100>

Adjust the gamma of the video signal (default: 0). Not supported by all video output drivers.

--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.

--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.

--demuxer-lavf-analyzeduration=<value>

Maximum length in seconds to analyze the stream properties.

--demuxer-lavf-probe-info=<yes|no|auto|nostreams>

Whether to probe stream information (default: auto). Technically, this controls whether libavformat's avformat_find_stream_info() function is called. Usually it's safer to call it, but it can also make startup slower.

The auto choice (the default) tries to skip this for a few know-safe whitelisted formats, while calling it for everything else.

The nostreams choice only calls it if and only if the file seems to contain no streams after opening (helpful in cases when calling the function is needed to detect streams at all, such as with FLV files).

--demuxer-lavf-probescore=<1-100>

Minimum required libavformat probe score. Lower values will require less data to be loaded (makes streams start faster), but makes file format detection less reliable. Can be used to force auto-detected libavformat demuxers, even if libavformat considers the detection not reliable enough. (Default: 26.)

--demuxer-lavf-allow-mimetype=<yes|no>

Allow deriving the format from the HTTP MIME type (default: yes). Set this to no in case playing things from HTTP mysteriously fails, even though the same files work from local disk.

This is default in order to reduce latency when opening HTTP streams.

--demuxer-lavf-format=<name>

Force a specific libavformat demuxer.

--demuxer-lavf-hacks=<yes|no>

By default, some formats will be handled differently from other formats by explicitly checking for them. Most of these compensate for weird or imperfect behavior from libavformat demuxers. Passing no disables these. For debugging and testing only.

--demuxer-lavf-o=<key>=<value>[,<key>=<value>[,...]]

Pass AVOptions to libavformat demuxer.

Note, a patch to make the o= unneeded and pass all unknown options through the AVOption system is welcome. A full list of AVOptions can be found in the FFmpeg manual. Note that some options may conflict with mpv options.

This is a key/value list option. See List Options for details.

--demuxer-lavf-probesize=<value>

Maximum amount of data to probe during the detection phase. In the case of MPEG-TS this value identifies the maximum number of TS packets to scan.

--demuxer-lavf-buffersize=<value>

Size of the stream read buffer allocated for libavformat in bytes (default: 32768). Lowering the size could lower latency. Note that libavformat might reallocate the buffer internally, or not fully use all of it.

--demuxer-lavf-linearize-timestamps=<yes|no|auto>

Attempt to linearize timestamp resets in demuxed streams (default: auto). This was tested only for single audio streams. It's unknown whether it works correctly for video (but likely won't). Note that the implementation is slightly incorrect either way, and will introduce a discontinuity by about 1 codec frame size.

The auto mode enables this for OGG audio stream. This covers the common and annoying case of OGG web radio streams. Some of these will reset timestamps to 0 every time a new song begins. This breaks the mpv seekable cache, which can't deal with timestamp resets. Note that FFmpeg/libavformat's seeking API can't deal with this either; it's likely that if this option breaks this even more, while if it's disabled, you can at least seek within the first song in the stream. Well, you won't get anything useful either way if the seek is outside of mpv's cache.

--demuxer-lavf-propagate-opts=<yes|no>

Propagate FFmpeg-level options to recursively opened connections (default: yes). This is needed because FFmpeg will apply these settings to nested AVIO contexts automatically. On the other hand, this could break in certain situations - it's the FFmpeg API, you just can't win.

This affects in particular the --timeout option and anything passed with --demuxer-lavf-o.

If this option is deemed unnecessary at some point in the future, it will be removed without notice.

--demuxer-mkv-subtitle-preroll=<yes|index|no>, --mkv-subtitle-preroll

Try harder to show embedded soft subtitles when seeking somewhere. Normally, it can happen that the subtitle at the seek target is not shown due to how some container file formats are designed. The subtitles appear only if seeking before or exactly to the position a subtitle first appears. To make this worse, subtitles are often timed to appear a very small amount before the associated video frame, so that seeking to the video frame typically does not demux the subtitle at that position.

Enabling this option makes the demuxer start reading data a bit before the seek target, so that subtitles appear correctly. Note that this makes seeking slower, and is not guaranteed to always work. It only works if the subtitle is close enough to the seek target.

Works with the internal Matroska demuxer only. Always enabled for absolute and hr-seeks, and this option changes behavior with relative or imprecise seeks only.

You can use the --demuxer-mkv-subtitle-preroll-secs option to specify how much data the demuxer should pre-read at most in order to find subtitle packets that may overlap. Setting this to 0 will effectively disable this preroll mechanism. Setting a very large value can make seeking very slow, and an extremely large value would completely reread the entire file from start to seek target on every seek - seeking can become slower towards the end of the file. The details are messy, and the value is actually rounded down to the cluster with the previous video keyframe.

Some files, especially files muxed with newer mkvmerge versions, have information embedded that can be used to determine what subtitle packets overlap with a seek target. In these cases, mpv will reduce the amount of data read to a minimum. (Although it will still read all data between the cluster that contains the first wanted subtitle packet, and the seek target.) If the index choice (which is the default) is specified, then prerolling will be done only if this information is actually available. If this method is used, the maximum amount of data to skip can be additionally controlled by --demuxer-mkv-subtitle-preroll-secs-index (it still uses the value of the option without -index if that is higher).

See also --hr-seek-demuxer-offset option. This option can achieve a similar effect, but only if hr-seek is active. It works with any demuxer, but makes seeking much slower, as it has to decode audio and video data instead of just skipping over it.

--mkv-subtitle-preroll is a deprecated alias.

--demuxer-mkv-subtitle-preroll-secs=<value>

See --demuxer-mkv-subtitle-preroll.

--demuxer-mkv-subtitle-preroll-secs-index=<value>

See --demuxer-mkv-subtitle-preroll.

--demuxer-mkv-probe-start-time=<yes|no>

Check the start time of Matroska files (default: yes). This simply reads the first cluster timestamps and assumes it is the start time. Technically, this also reads the first timestamp, which may increase latency by one frame (which may be relevant for live streams).

--demuxer-mkv-probe-video-duration=<yes|no|full>

When opening the file, seek to the end of it, and check what timestamp the last video packet has, and report that as file duration. This is strictly for compatibility with Haali only. In this mode, it's possible that opening will be slower (especially when playing over http), or that behavior with broken files is much worse. So don't use this option.

The yes mode merely uses the index and reads a small number of blocks from the end of the file. The full mode actually traverses the entire file and can make a reliable estimate even without an index present (such as partial files).

--demuxer-rawaudio-channels=<value>

Number of channels (or channel layout) if --demuxer=rawaudio is used (default: stereo).

--demuxer-rawaudio-format=<value>

Sample format for --demuxer=rawaudio (default: s16le). Use --demuxer-rawaudio-format=help to get a list of all formats.

--demuxer-rawaudio-rate=<value>

Sample rate for --demuxer=rawaudio (default: 44 kHz).

--demuxer-rawvideo-fps=<value>

Rate in frames per second for --demuxer=rawvideo (default: 25.0).

--demuxer-rawvideo-w=<value>, --demuxer-rawvideo-h=<value>

Image dimension in pixels for --demuxer=rawvideo.

mpv sample-720x576.yuv --demuxer=rawvideo \
--demuxer-rawvideo-w=720 --demuxer-rawvideo-h=576

--demuxer-rawvideo-format=<value>

Color space (fourcc) in hex or string for --demuxer=rawvideo (default: YV12).

--demuxer-rawvideo-mp-format=<value>

Color space by internal video format for --demuxer=rawvideo. Use --demuxer-rawvideo-mp-format=help for a list of possible formats.

--demuxer-rawvideo-codec=<value>

Set the video codec instead of selecting the rawvideo codec when using --demuxer=rawvideo. This uses the same values as codec names in --vd (but it does not accept decoder names).

--demuxer-rawvideo-size=<value>

Frame size in bytes when using --demuxer=rawvideo.

--demuxer-cue-codepage=<codepage>

Specify the CUE sheet codepage. (See --sub-codepage for details.)

--demuxer-max-bytes=<bytesize>

This controls how much the demuxer is allowed to buffer ahead. The demuxer will normally try to read ahead as much as necessary, or as much is requested with --demuxer-readahead-secs. The option can be used to restrict the maximum readahead. This limits excessive readahead in case of broken files or desynced playback. The demuxer will stop reading additional packets as soon as one of the limits is reached. (The limits still can be slightly overstepped due to technical reasons.)

Set these limits higher if you get a packet queue overflow warning, and you think normal playback would be possible with a larger packet queue.

See --list-options for defaults and value range. <bytesize> options accept suffixes such as KiB and MiB.

--demuxer-max-back-bytes=<bytesize>

This controls how much past data the demuxer is allowed to preserve. This is useful only if the cache is enabled.

Unlike the forward cache, there is no control how many seconds are actually cached - it will simply use as much memory this option allows. Setting this option to 0 will strictly disable any back buffer, but this will lead to the situation that the forward seek range starts after the current playback position (as it removes past packets that are seek points).

If the end of the file is reached, the remaining unused forward buffer space is "donated" to the backbuffer (unless the backbuffer size is set to 0, or --demuxer-donate-buffer is set to no). This still limits the total cache usage to the sum of the forward and backward cache, and effectively makes better use of the total allowed memory budget. (The opposite does not happen: free backward buffer is never "donated" to the forward buffer.)

Keep in mind that other buffers in the player (like decoders) will cause the demuxer to cache "future" frames in the back buffer, which can skew the impression about how much data the backbuffer contains.

See --list-options for defaults and value range.

--demuxer-donate-buffer=<yes|no>

Whether to let the back buffer use part of the forward buffer (default: yes). If set to yes, the "donation" behavior described in the option description for --demuxer-max-back-bytes is enabled. This means the back buffer may use up memory up to the sum of the forward and back buffer options, minus the active size of the forward buffer. If set to no, the options strictly limit the forward and back buffer sizes separately.

Note that if the end of the file is reached, the buffered data stays the same, even if you seek back within the cache. This is because the back buffer is only reduced when new data is read.

--demuxer-seekable-cache=<yes|no|auto>

Debugging option to control whether seeking can use the demuxer cache (default: auto). Normally you don't ever need to set this; the default auto does the right thing and enables cache seeking it if --cache is set to yes (or is implied yes if --cache=auto).

If enabled, short seek offsets will not trigger a low level demuxer seek (which means for example that slow network round trips or FFmpeg seek bugs can be avoided). If a seek cannot happen within the cached range, a low level seek will be triggered. Seeking outside of the cache will start a new cached range, but can discard the old cache range if the demuxer exhibits certain unsupported behavior.

The special value auto means yes in the same situation as --cache-secs is used (i.e. when the stream appears to be a network stream or the stream cache is enabled).

--demuxer-force-retry-on-eof=<yes|no>

Whether to keep retrying making the demuxer thread read more packets each time the decoder dequeues a packet, even if the end of the file was reached (default: no). This does not really make sense, but was the default behavior in mpv 0.32.0 and earlier. This option will be silently removed after a while, and exists only to restore the old behavior for testing, in case this was actually needed somewhere. This does _not_ help with files that are being appended to (in these cases use appending://, or disable the cache).

--demuxer-thread=<yes|no>

Run the demuxer in a separate thread, and let it prefetch a certain amount of packets (default: yes). Having this enabled leads to smoother playback, enables features like prefetching, and prevents that stuck network freezes the player. On the other hand, it can add overhead, or the background prefetching can hog CPU resources.

Disabling this option is not recommended. Use it for debugging only.

--demuxer-termination-timeout=<seconds>

Number of seconds the player should wait to shutdown the demuxer (default: 0.1). The player will wait up to this much time before it closes the stream layer forcefully. Forceful closing usually means the network I/O is given no chance to close its connections gracefully (of course the OS can still close TCP connections properly), and might result in annoying messages being logged, and in some cases, confused remote servers.

This timeout is usually only applied when loading has finished properly. If loading is aborted by the user, or in some corner cases like removing external tracks sourced from network during playback, forceful closing is always used.

--demuxer-readahead-secs=<seconds>

If --demuxer-thread is enabled, this controls how much the demuxer should buffer ahead in seconds (default: 1). As long as no packet has a timestamp difference higher than the readahead amount relative to the last packet returned to the decoder, the demuxer keeps reading.

Note that enabling the cache (such as --cache=yes, or if the input is considered a network stream, and --cache=auto is used), this option is mostly ignored. (--cache-secs will override this. Technically, the maximum of both options is used.)

The main purpose of this option is to limit the readhead for local playback, since a large readahead value is not overly useful in this case.

(This value tends to be fuzzy, because many file formats don't store linear timestamps.)

--prefetch-playlist=<yes|no>

Prefetch next playlist entry while playback of the current entry is ending (default: no).

This does not prefill the cache with the video data of the next URL. Prefetching video data is supported only for the current playlist entry, and depends on the demuxer cache settings (on by default). This merely opens the URL of the next playlist entry as soon the current URL is fully read.

This does not work with URLs resolved by the youtube-dl wrapper, and it won't.

This can give subtly wrong results if per-file options are used, or if options are changed in the time window between prefetching start and next file played.

This can occasionally make wrong prefetching decisions. For example, it can't predict whether you go backwards in the playlist, and assumes you won't edit the playlist.

Highly experimental.

--force-seekable=<yes|no>

If the player thinks that the media is not seekable (e.g. playing from a pipe, or it's an http stream with a server that doesn't support range requests), seeking will be disabled. This option can forcibly enable it. For seeks within the cache, there's a good chance of success.

--demuxer-cache-wait=<yes|no>

Before starting playback, read data until either the end of the file was reached, or the demuxer cache has reached maximum capacity. Only once this is done, playback starts. This intentionally happens before the initial seek triggered with --start. This does not change any runtime behavior after the initial caching. This option is useless if the file cannot be cached completely.

--rar-list-all-volumes=<yes|no>

When opening multi-volume rar files, open all volumes to create a full list of contained files (default: no). If disabled, only the archive entries whose headers are located within the first volume are listed (and thus played when opening a .rar file with mpv). Doing so speeds up opening, and the typical idiotic use-case of playing uncompressed multi-volume rar files that contain a single media file is made faster.

Opening is still slow, because for unknown, idiotic, and unnecessary reasons libarchive opens all volumes anyway when playing the main file, even though mpv iterated no archive entries yet.

--native-keyrepeat

Use system settings for keyrepeat delay and rate, instead of --input-ar-delay and --input-ar-rate. (Whether this applies depends on the VO backend and how it handles keyboard input. Does not apply to terminal input.)

--input-ar-delay

Delay in milliseconds before we start to autorepeat a key (0 to disable).

--input-ar-rate

Number of key presses to generate per second on autorepeat.

--input-conf=<filename>

Specify input configuration file other than the default location in the mpv configuration directory (usually ~/.config/mpv/input.conf).

--no-input-default-bindings

Disable default-level ("weak") key bindings. These are bindings which config files like input.conf can override. It currently affects the builtin key bindings, and keys which scripts bind using mp.add_key_binding (but not mp.add_forced_key_binding because this overrides input.conf).

--no-input-builtin-bindings

Disable loading of built-in key bindings during start-up. This option is applied only during (lib)mpv initialization, and if used then it will not be not possible to enable them later. May be useful to libmpv clients.

--input-cmdlist

Prints all commands that can be bound to keys.

--input-doubleclick-time=<milliseconds>

Time in milliseconds to recognize two consecutive button presses as a double-click (default: 300).

--input-keylist

Prints all keys that can be bound to commands.

--input-key-fifo-size=<2-65000>

Specify the size of the FIFO that buffers key events (default: 7). If it is too small, some events may be lost. The main disadvantage of setting it to a very large value is that if you hold down a key triggering some particularly slow command then the player may be unresponsive while it processes all the queued commands.

--input-test

Input test mode. Instead of executing commands on key presses, mpv will show the keys and the bound commands on the OSD. Has to be used with a dummy video, and the normal ways to quit the player will not work (key bindings that normally quit will be shown on OSD only, just like any other binding). See INPUT.CONF.

--input-terminal, --no-input-terminal

--no-input-terminal prevents the player 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 input commands.

--input-ipc-server=<filename>

Enable the IPC support and create the listening socket at the given path.

On Linux and Unix, the given path is a regular filesystem path. On Windows, named pipes are used, so the path refers to the pipe namespace (\\.\pipe\<name>). If the \\.\pipe\ prefix is missing, mpv will add it automatically before creating the pipe, so --input-ipc-server=/tmp/mpv-socket and --input-ipc-server=\\.\pipe\tmp\mpv-socket are equivalent for IPC on Windows.

See JSON IPC for details.

--input-ipc-client=fd://<N>

Connect a single IPC client to the given FD. This is somewhat similar to --input-ipc-server, except no socket is created, and instead the passed FD is treated like a socket connection received from accept(). In practice, you could pass either a FD created by socketpair(), or a pipe. In both cases, you must sure the FD is actually inherited by mpv (do not set the POSIX CLOEXEC flag).

The player quits when the connection is closed.

This is somewhat similar to the removed --input-file option, except it supports only integer FDs, and cannot open actual paths.

NOTE:

WARNING:

--input-gamepad=<yes|no>

Enable/disable SDL2 Gamepad support. Disabled by default.

--input-cursor, --no-input-cursor

Permit mpv to receive pointer events reported by the video output driver. Necessary to use the OSC, or to select the buttons in DVD menus. Support depends on the VO in use.

--input-media-keys=<yes|no>

On systems where mpv can choose between receiving media keys or letting the system handle them - this option controls whether mpv should receive them.

Default: yes (except for libmpv). macOS and Windows only, because elsewhere mpv doesn't have a choice - the system decides whether to send media keys to mpv. For instance, on X11 or Wayland, system-wide media keys are not implemented. Whether media keys work when the mpv window is focused is implementation-defined.

--input-right-alt-gr, --no-input-right-alt-gr

(Cocoa and Windows only) Use the right Alt key as Alt Gr to produce special characters. If disabled, count the right Alt as an Alt modifier key. Enabled by default.

--input-vo-keyboard=<yes|no>

Disable all keyboard input on for VOs which can't participate in proper keyboard input dispatching. May not affect all VOs. Generally useful for embedding only.

On X11, a sub-window with input enabled grabs all keyboard input as long as it is 1. a child of a focused window, and 2. the mouse is inside of the sub-window. It can steal away all keyboard input from the application embedding the mpv window, and on the other hand, the mpv window will receive no input if the mouse is outside of the mpv window, even though mpv has focus. Modern toolkits work around this weird X11 behavior, but naively embedding foreign windows breaks it.

The only way to handle this reasonably is using the XEmbed protocol, which was designed to solve these problems. GTK provides GtkSocket, which supports XEmbed. Qt doesn't seem to provide anything working in newer versions.

If the embedder supports XEmbed, input should work with default settings and with this option disabled. Note that input-default-bindings is disabled by default in libmpv as well - it should be enabled if you want the mpv default key bindings.

(This option was renamed from --input-x11-keyboard.)

--osc, --no-osc

Whether to load the on-screen-controller (default: yes).

--no-osd-bar, --osd-bar

Disable display of the OSD bar.

You can configure this on a per-command basis in input.conf using osd- prefixes, see Input Command Prefixes. If you want to disable the OSD completely, use --osd-level=0.

--osd-on-seek=<no,bar,msg,msg-bar>

Set what is displayed on the OSD during seeks. The default is bar.

You can configure this on a per-command basis in input.conf using osd- prefixes, see Input Command Prefixes.

--osd-duration=<time>

Set the duration of the OSD messages in ms (default: 1000).

--osd-font=<name>

Specify font to use for OSD. The default is sans-serif.

--osd-font-size=<size>

Specify the OSD font size. See --sub-font-size for details.

Default: 55.

--osd-msg1=<string>

Show this string as message on OSD with OSD level 1 (visible by default). The message will be visible by default, and as long as no other message covers it, and the OSD level isn't changed (see --osd-level). Expands properties; see Property Expansion.

--osd-msg2=<string>

Similar to --osd-msg1, but for OSD level 2. If this is an empty string (default), then the playback time is shown.

--osd-msg3=<string>

Similar to --osd-msg1, but for OSD level 3. If this is an empty string (default), then the playback time, duration, and some more information is shown.

This is used for the show-progress command (by default mapped to P), and when seeking if enabled with --osd-on-seek or by osd- prefixes in input.conf (see Input Command Prefixes).

--osd-status-msg is a legacy equivalent (but with a minor difference).

--osd-status-msg=<string>

Show a custom string during playback instead of the standard status text. This overrides the status text used for --osd-level=3, when using the show-progress command (by default mapped to P), and when seeking if enabled with --osd-on-seek or osd- prefixes in input.conf (see Input Command Prefixes). Expands properties. See Property Expansion.

This option has been replaced with --osd-msg3. The only difference is that this option implicitly includes ${osd-sym-cc}. This option is ignored if --osd-msg3 is not empty.

--osd-playing-msg=<string>

Show a message on OSD when playback starts. The string is expanded for properties, e.g. --osd-playing-msg='file: ${filename}' will show the message file: followed by a space and the currently played filename.

See Property Expansion.

--osd-bar-align-x=<-1-1>

Position of the OSD bar. -1 is far left, 0 is centered, 1 is far right. Fractional values (like 0.5) are allowed.

--osd-bar-align-y=<-1-1>

Position of the OSD bar. -1 is top, 0 is centered, 1 is bottom. Fractional values (like 0.5) are allowed.

--osd-bar-w=<1-100>

Width of the OSD bar, in percentage of the screen width (default: 75). A value of 50 means the bar is half the screen wide.

--osd-bar-h=<0.1-50>

Height of the OSD bar, in percentage of the screen height (default: 3.125).

--osd-back-color=<color>

See --sub-color. Color used for OSD text background.

--osd-blur=<0..20.0>

Gaussian blur factor. 0 means no blur applied (default).

--osd-bold=<yes|no>

Format text on bold.

--osd-italic=<yes|no>

Format text on italic.

--osd-border-color=<color>

See --sub-color. Color used for the OSD font border.

NOTE:

--osd-border-size=<size>

Size of the OSD font border in scaled pixels (see --sub-font-size for details). A value of 0 disables borders.

Default: 3.

--osd-color=<color>

Specify the color used for OSD. See --sub-color for details.

--osd-fractions

Show OSD times with fractions of seconds (in millisecond precision). Useful to see the exact timestamp of a video frame.

--osd-level=<0-3>

Specifies which mode the OSD should start in.

--osd-margin-x=<size>

Left and right screen margin for the OSD in scaled pixels (see --sub-font-size for details).

This option specifies the distance of the OSD to the left, as well as at which distance from the right border long OSD text will be broken.

Default: 25.

--osd-margin-y=<size>

Top and bottom screen margin for the OSD in scaled pixels (see --sub-font-size for details).

This option specifies the vertical margins of the OSD.

Default: 22.

--osd-align-x=<left|center|right>

Control to which corner of the screen OSD should be aligned to (default: left).

--osd-align-y=<top|center|bottom>

Vertical position (default: top). Details see --osd-align-x.

--osd-scale=<factor>

OSD font size multiplier, multiplied with --osd-font-size value.

--osd-scale-by-window=<yes|no>

Whether to scale the OSD with the window size (default: yes). If this is disabled, --osd-font-size and other OSD options that use scaled pixels are always in actual pixels. The effect is that changing the window size won't change the OSD font size.

--osd-shadow-color=<color>

See --sub-color. Color used for OSD shadow.

--osd-shadow-offset=<size>

Displacement of the OSD shadow in scaled pixels (see --sub-font-size for details). A value of 0 disables shadows.

Default: 0.

--osd-spacing=<size>

Horizontal OSD/sub font spacing in scaled pixels (see --sub-font-size for details). This value is added to the normal letter spacing. Negative values are allowed.

Default: 0.

--video-osd=<yes|no>

Enabled OSD rendering on the video window (default: yes). This can be used in situations where terminal OSD is preferred. If you just want to disable all OSD rendering, use --osd-level=0.

It does not affect subtitles or overlays created by scripts (in particular, the OSC needs to be disabled with --no-osc).

This option is somewhat experimental and could be replaced by another mechanism in the future.

--osd-font-provider=<...>

See --sub-font-provider for details and accepted values. Note that unlike subtitles, OSD never uses embedded fonts from media files.

--screenshot-format=<type>

Set the image file type used for saving screenshots.

Available choices:

--screenshot-tag-colorspace=<yes|no>

Tag screenshots with the appropriate colorspace.

Note that not all formats are supported.

Default: no.

--screenshot-high-bit-depth=<yes|no>

If possible, write screenshots with a bit depth similar to the source video (default: yes). This is interesting in particular for PNG, as this sometimes triggers writing 16 bit PNGs with huge file sizes. This will also include an unused alpha channel in the resulting files if 16 bit is used.

--screenshot-template=<template>

Specify the filename template used to save screenshots. The template specifies the filename without file extension, and can contain format specifiers, which will be substituted when taking a screenshot. By default, the template is mpv-shot%n, which results in filenames like mpv-shot0012.png for example.

The template can start with a relative or absolute path, in order to specify a directory location where screenshots should be saved.

If the final screenshot filename points to an already existing file, the file will not be overwritten. The screenshot will either not be saved, or if the template contains %n, saved using different, newly generated filename.

Allowed format specifiers:

--screenshot-directory=<path>

Store screenshots in this directory. This path is joined with the filename generated by --screenshot-template. If the template filename is already absolute, the directory is ignored.

If the directory does not exist, it is created on the first screenshot. If it is not a directory, an error is generated when trying to write a screenshot.

This option is not set by default, and thus will write screenshots to the directory from which mpv was started. In pseudo-gui mode (see PSEUDO GUI MODE), this is set to the desktop.

--screenshot-jpeg-quality=<0-100>

Set the JPEG quality level. Higher means better quality. The default is 90.

--screenshot-jpeg-source-chroma=<yes|no>

Write JPEG files with the same chroma subsampling as the video (default: yes). If disabled, the libjpeg default is used.

--screenshot-png-compression=<0-9>

Set the PNG compression level. Higher means better compression. This will affect the file size of the written screenshot file and the time it takes to write a screenshot. Too high compression might occupy enough CPU time to interrupt playback. The default is 7.

--screenshot-png-filter=<0-5>

Set the filter applied prior to PNG compression. 0 is none, 1 is "sub", 2 is "up", 3 is "average", 4 is "Paeth", and 5 is "mixed". This affects the level of compression that can be achieved. For most images, "mixed" achieves the best compression ratio, hence it is the default.

--screenshot-webp-lossless=<yes|no>

Write lossless WebP files. --screenshot-webp-quality is ignored if this is set. The default is no.

--screenshot-webp-quality=<0-100>

Set the WebP quality level. Higher means better quality. The default is 75.

--screenshot-webp-compression=<0-6>

Set the WebP compression level. Higher means better compression, but takes more CPU time. Note that this also affects the screenshot quality when used with lossy WebP files. The default is 4.

--screenshot-sw=<yes|no>

Whether to use software rendering for screenshots (default: no).

If set to no, the screenshot will be rendered by the current VO if possible (only vo_gpu currently). The advantage is that this will (probably) always show up as in the video window, because the same code is used for rendering. But since the renderer needs to be reinitialized, this can be slow and interrupt playback. (Unless the window mode is used with the screenshot command.)

If set to yes, the software scaler is used to convert the video to RGB (or whatever the target screenshot requires). In this case, conversion will run in a separate thread and will probably not interrupt playback. The software renderer may lack some capabilities, such as HDR rendering.

--sws-scaler=<name>

Specify the software scaler algorithm to be used with --vf=scale. This also affects video output drivers which lack hardware acceleration, e.g. x11. See also --vf=scale.

To get a list of available scalers, run --sws-scaler=help.

Default: bicubic.

--sws-lgb=<0-100>

Software scaler Gaussian blur filter (luma). See --sws-scaler.

--sws-cgb=<0-100>

Software scaler Gaussian blur filter (chroma). See --sws-scaler.

--sws-ls=<-100-100>

Software scaler sharpen filter (luma). See --sws-scaler.

--sws-cs=<-100-100>

Software scaler sharpen filter (chroma). See --sws-scaler.

--sws-chs=<h>

Software scaler chroma horizontal shifting. See --sws-scaler.

--sws-cvs=<v>

Software scaler chroma vertical shifting. See --sws-scaler.

--sws-bitexact=<yes|no>

Unknown functionality (default: no). Consult libswscale source code. The primary purpose of this, as far as libswscale API goes), is to produce exactly the same output for the same input on all platforms (output has the same "bits" everywhere, thus "bitexact"). Typically disables optimizations.

--sws-fast=<yes|no>

Allow optimizations that help with performance, but reduce quality (default: no).

VOs like drm and x11 will benefit a lot from using --sws-fast. You may need to set other options, like --sws-scaler. The builtin sws-fast profile sets this option and some others to gain performance for reduced quality. Also see --sws-allow-zimg.

--sws-allow-zimg=<yes|no>

Allow using zimg (if the component using the internal swscale wrapper explicitly allows so) (default: yes). In this case, zimg may be used, if the internal zimg wrapper supports the input and output formats. It will silently or noisily fall back to libswscale if one of these conditions does not apply.

If zimg is used, the other --sws- options are ignored, and the --zimg- options are used instead.

If the internal component using the swscale wrapper hooks up logging correctly, a verbose priority log message will indicate whether zimg is being used.

Most things which need software conversion can make use of this.

NOTE:

--zimg-scaler=<point|bilinear|bicubic|spline16|spline36|lanczos>

Zimg luma scaler to use (default: lanczos).

--zimg-scaler-param-a=<default|float>, --zimg-scaler-param-b=<default|float>

Set scaler parameters. By default, these are set to the special string default, which maps to a scaler-specific default value. Ignored if the scaler is not tunable.

--zimg-scaler-chroma=...

Same as --zimg-scaler, for for chroma interpolation (default: bilinear).

--zimg-scaler-chroma-param-a, --zimg-scaler-chroma-param-b

Same as --zimg-scaler-param-a / --zimg-scaler-param-b, for chroma.

--zimg-dither=<no|ordered|random|error-diffusion>

Dithering (default: random).

--zimg-threads=<auto|integer>

Set the maximum number of threads to use for scaling (default: auto). auto uses the number of logical cores on the current machine. Note that the scaler may use less threads (or even just 1 thread) depending on stuff. Passing a value of 1 disables threading and always scales the image in a single operation. Higher thread counts waste resources, but make it typically faster.

Note that some zimg git versions had bugs that will corrupt the output if threads are used.

--zimg-fast=<yes|no>

Allow optimizations that help with performance, but reduce quality (default: yes). Currently, this may simplify gamma conversion operations.

--audio-resample-filter-size=<length>

Length of the filter with respect to the lower sampling rate. (default: 16)

--audio-resample-phase-shift=<count>

Log2 of the number of polyphase entries. (..., 10->1024, 11->2048, 12->4096, ...) (default: 10->1024)

--audio-resample-cutoff=<cutoff>

Cutoff frequency (0.0-1.0), default set depending upon filter length.

--audio-resample-linear=<yes|no>

If set then filters will be linearly interpolated between polyphase entries. (default: no)

--audio-normalize-downmix=<yes|no>

Enable/disable normalization if surround audio is downmixed to stereo (default: no). If this is disabled, downmix can cause clipping. If it's enabled, the output might be too quiet. It depends on the source audio.

Technically, this changes the normalize suboption of the lavrresample audio filter, which performs the downmixing.

If downmix happens outside of mpv for some reason, or in the decoder (decoder downmixing), or in the audio output (system mixer), this has no effect.

--audio-resample-max-output-size=<length>

Limit maximum size of audio frames filtered at once, in ms (default: 40). The output size size is limited in order to make resample speed changes react faster. This is necessary especially if decoders or filters output very large frame sizes (like some lossless codecs or some DRC filters). This option does not affect the resampling algorithm in any way.

For testing/debugging only. Can be removed or changed any time.

--audio-swresample-o=<string>

Set AVOptions on the SwrContext or AVAudioResampleContext. These should be documented by FFmpeg or Libav.

This is a key/value list option. See List Options for details.

--quiet

Make console output less verbose; in particular, prevents the status line (i.e. AV: 3.4 (00:00:03.37) / 5320.6 ...) from being displayed. Particularly useful on slow terminals or broken ones which do not properly handle carriage return (i.e. \r).

See also: --really-quiet and --msg-level.

--really-quiet

Display even less output and status messages than with --quiet.

--no-terminal, --terminal

Disable any use of the terminal and stdin/stdout/stderr. This completely silences any message output.

Unlike --really-quiet, this disables input and terminal initialization as well.

--no-msg-color

Disable colorful console output on terminals.

--msg-level=<module1=level1,module2=level2,...>

Control verbosity directly for each module. The all module changes the verbosity of all the modules. The verbosity changes from this option are applied in order from left to right, and each item can override a previous one.

Run mpv with --msg-level=all=trace to see all messages mpv outputs. You can use the module names printed in the output (prefixed to each line in [...]) to limit the output to interesting modules.

This also affects --log-file, and in certain cases libmpv API logging.

NOTE:

Available levels:

mpv --msg-level=ao/sndio=no

mpv --msg-level=all=warn,ao/alsa=error

--term-osd=<auto|no|force>

Control whether OSD messages are shown on the console when no video output is available (default: auto).

The auto mode also enables terminal OSD if --video-osd=no was set.

--term-osd-bar, --no-term-osd-bar

Enable printing a progress bar under the status line on the terminal. (Disabled by default.)

--term-osd-bar-chars=<string>

Customize the --term-osd-bar feature. The string is expected to consist of 5 characters (start, left space, position indicator, right space, end). You can use Unicode characters, but note that double- width characters will not be treated correctly.

Default: [-+-].

--term-playing-msg=<string>

Print out a string after starting playback. The string is expanded for properties, e.g. --term-playing-msg='file: ${filename}' will print the string file: followed by a space and the currently played filename.

See Property Expansion.

--term-status-msg=<string>

Print out a custom string during playback instead of the standard status line. Expands properties. See Property Expansion.

--term-title=<string>

Set the terminal title. Currently, this simply concatenates the escape sequence setting the window title with the provided (property expanded) string. This will mess up if the expanded string contain bytes that end the escape sequence, or if the terminal does not understand the sequence. The latter probably includes the regrettable win32.

Expands properties. See Property Expansion.

--msg-module

Prepend module name to each console message.

--msg-time

Prepend timing information to each console message. The time is in seconds since the player process was started (technically, slightly later actually), using a monotonic time source depending on the OS. This is CLOCK_MONOTONIC on sane UNIX variants.

--cache=<yes|no|auto>

Decide whether to use network cache settings (default: auto).

If enabled, use up to --cache-secs for the cache size (but still limited to --demuxer-max-bytes), and make the cached data seekable (if possible). If disabled, --cache-pause and related are implicitly disabled.

The auto choice enables this depending on whether the stream is thought to involve network accesses or other slow media (this is an imperfect heuristic).

Before mpv 0.30.0, this used to accept a number, which specified the size of the cache in kilobytes. Use e.g. --cache --demuxer-max-bytes=123k instead.

--no-cache

Turn off input stream caching. See --cache.

--cache-secs=<seconds>

How many seconds of audio/video to prefetch if the cache is active. This overrides the --demuxer-readahead-secs option if and only if the cache is enabled and the value is larger. The default value is set to something very high, so the actually achieved readahead will usually be limited by the value of the --demuxer-max-bytes option. Setting this option is usually only useful for limiting readahead.

--cache-on-disk=<yes|no>

Write packet data to a temporary file, instead of keeping them in memory. This makes sense only with --cache. If the normal cache is disabled, this option is ignored.

You need to set --cache-dir to use this.

The cache file is append-only. Even if the player appears to prune data, the file space freed by it is not reused. The cache file is deleted when playback is closed.

Note that packet metadata is still kept in memory. --demuxer-max-bytes and related options are applied to metadata only. The size of this metadata varies, but 50 MB per hour of media is typical. The cache statistics will report this metadats size, instead of the size of the cache file. If the metadata hits the size limits, the metadata is pruned (but not the cache file).

When the media is closed, the cache file is deleted. A cache file is generally worthless after the media is closed, and it's hard to retrieve any media data from it (it's not supported by design).

If the option is enabled at runtime, the cache file is created, but old data will remain in the memory cache. If the option is disabled at runtime, old data remains in the disk cache, and the cache file is not closed until the media is closed. If the option is disabled and enabled again, it will continue to use the cache file that was opened first.

--cache-dir=<path>

Directory where to create temporary files (default: none).

Currently, this is used for --cache-on-disk only.

--cache-pause=<yes|no>

Whether the player should automatically pause when the cache runs out of data and stalls decoding/playback (default: yes). If enabled, it will pause and unpause once more data is available, aka "buffering".

--cache-pause-wait=<seconds>

Number of seconds the packet cache should have buffered before starting playback again if "buffering" was entered (default: 1). This can be used to control how long the player rebuffers if --cache-pause is enabled, and the demuxer underruns. If the given time is higher than the maximum set with --cache-secs or --demuxer-readahead-secs, or prefetching ends before that for some other reason (like file end or maximum configured cache size reached), playback resumes earlier.

--cache-pause-initial=<yes|no>

Enter "buffering" mode before starting playback (default: no). This can be used to ensure playback starts smoothly, in exchange for waiting some time to prefetch network data (as controlled by --cache-pause-wait). For example, some common behavior is that playback starts, but network caches immediately underrun when trying to decode more data as playback progresses.

Another thing that can happen is that the network prefetching is so CPU demanding (due to demuxing in the background) that playback drops frames at first. In these cases, it helps enabling this option, and setting --cache-secs and --cache-pause-wait to roughly the same value.

This option also triggers when playback is restarted after seeking.

--cache-unlink-files=<immediate|whendone|no>

Whether or when to unlink cache files (default: immediate). This affects cache files which are inherently temporary, and which make no sense to remain on disk after the player terminates. This is a debugging option.

Currently, this is used for --cache-on-disk only.

--stream-buffer-size=<bytesize>

Size of the low level stream byte buffer (default: 128KB). This is used as buffer between demuxer and low level I/O (e.g. sockets). Generally, this can be very small, and the main purpose is similar to the internal buffer FILE in the C standard library will have.

Half of the buffer is always used for guaranteed seek back, which is important for unseekable input.

There are known cases where this can help performance to set a large buffer:

In other cases, setting this to a large value can reduce performance.

Usually, read accesses are at half the buffer size, but it may happen that accesses are done alternating with smaller and larger sizes (this is due to the internal ring buffer wrap-around).

See --list-options for defaults and value range. <bytesize> options accept suffixes such as KiB and MiB.

--vd-queue-enable=<yes|no>, --ad-queue-enable

Enable running the video/audio decoder on a separate thread (default: no). If enabled, the decoder is run on a separate thread, and a frame queue is put between decoder and higher level playback logic. The size of the frame queue is defined by the other options below.

This is probably quite pointless. libavcodec already has multithreaded decoding (enabled by default), which makes this largely unnecessary. It might help in some corner cases with high bandwidth video that is slow to decode (in these cases libavcodec would block the playback logic, while using a decoding thread would distribute the decoding time evenly without affecting the playback logic). In other situations, it will simply make seeking slower and use significantly more memory.

The queue size is restricted by the other --vd-queue-... options. The final queue size is the minimum as indicated by the option with the lowest limit. Each decoder/track has its own queue that may use the full configured queue size.

Most queue options can be changed at runtime. --vd-queue-enable itself (and the audio equivalent) update only if decoding is completely reinitialized. However, setting --vd-queue-max-samples=1 should almost lead to the same behavior as --vd-queue-enable=no, so that value can be used for effectively runtime enabling/disabling the queue.

This should not be used with hardware decoding. It is possible to enable this for audio, but it makes even less sense.

--vd-queue-max-bytes=<bytesize>, --ad-queue-max-bytes

Maximum approximate allowed size of the queue. If exceeded, decoding will be stopped. The maximum size can be exceeded by about 1 frame.

See --list-options for defaults and value range. <bytesize> options accept suffixes such as KiB and MiB.

--vd-queue-max-samples=<int>, --ad-queue-max-samples

Maximum number of frames (video) or samples (audio) of the queue. The audio size may be exceeded by about 1 frame.

See --list-options for defaults and value range.

--vd-queue-max-secs=<seconds>, --ad-queue-max-secs

Maximum number of seconds of media in the queue. The special value 0 means no limit is set. The queue size may be exceeded by about 2 frames. Timestamp resets may lead to random queue size usage.

See --list-options for defaults and value range.

--user-agent=<string>

Use <string> as user agent for HTTP streaming.

--cookies, --no-cookies

Support cookies when making HTTP requests. Disabled by default.

--cookies-file=<filename>

Read HTTP cookies from <filename>. The file is assumed to be in Netscape format.

--http-header-fields=<field1,field2>

Set custom HTTP fields when accessing HTTP stream.

This is a string list option. See List Options for details.

mpv --http-header-fields='Field1: value1','Field2: value2' \
http://localhost:1234

GET / HTTP/1.0
Host: localhost:1234
User-Agent: MPlayer
Icy-MetaData: 1
Field1: value1
Field2: value2
Connection: close

--http-proxy=<proxy>

URL of the HTTP/HTTPS proxy. If this is set, the http_proxy environment is ignored. The no_proxy environment variable is still respected. This option is silently ignored if it does not start with http://. Proxies are not used for https URLs. Setting this option does not try to make the ytdl script use the proxy.

--tls-ca-file=<filename>

Certificate authority database file for use with TLS. (Silently fails with older FFmpeg or Libav versions.)

--tls-verify

Verify peer certificates when using TLS (e.g. with https://...). (Silently fails with older FFmpeg or Libav versions.)

--tls-cert-file

A file containing a certificate to use in the handshake with the peer.

--tls-key-file

A file containing the private key for the certificate.

--referrer=<string>

Specify a referrer path or URL for HTTP requests.

--network-timeout=<seconds>

Specify the network timeout in seconds (default: 60 seconds). This affects at least HTTP. The special value 0 uses the FFmpeg/Libav defaults. If a protocol is used which does not support timeouts, this option is silently ignored.

WARNING:

--rtsp-transport=<lavf|udp|udp_multicast|tcp|http>

Select RTSP transport method (default: tcp). This selects the underlying network transport when playing rtsp://... URLs. The value lavf leaves the decision to libavformat.

--hls-bitrate=<no|min|max|<rate>>

If HLS streams are played, this option controls what streams are selected by default. The option allows the following parameters:

Additionally, if the option is a number, the stream with the highest rate equal or below the option value is selected.

The bitrate as used is sent by the server, and there's no guarantee it's actually meaningful.

--dvbin-prog=<string>

This defines the program to tune to. Usually, you may specify this by using a stream URI like "dvb://ZDF HD", but you can tune to a different channel by writing to this property at runtime. Also see dvbin-channel-switch-offset for more useful channel switching functionality.

--dvbin-card=<0-15>

Specifies using card number 0-15 (default: 0).

--dvbin-file=<filename>

Instructs mpv to read the channels list from <filename>. The default is in the mpv configuration directory (usually ~/.config/mpv) with the filename channels.conf.{sat,ter,cbl,atsc} (based on your card type) or channels.conf as a last resort. For DVB-S/2 cards, a VDR 1.7.x format channel list is recommended as it allows tuning to DVB-S2 channels, enabling subtitles and decoding the PMT (which largely improves the demuxing). Classic mplayer format channel lists are still supported (without these improvements), and for other card types, only limited VDR format channel list support is implemented (patches welcome). For channels with dynamic PID switching or incomplete channels.conf, --dvbin-full-transponder or the magic PID 8192 are recommended.

--dvbin-timeout=<1-30>

Maximum number of seconds to wait when trying to tune a frequency before giving up (default: 30).

--dvbin-full-transponder=<yes|no>

Apply no filters on program PIDs, only tune to frequency and pass full transponder to demuxer. The player frontend selects the streams from the full TS in this case, so the program which is shown initially may not match the chosen channel. Switching between the programs is possible by cycling the program property. This is useful to record multiple programs on a single transponder, or to work around issues in the channels.conf. It is also recommended to use this for channels which switch PIDs on-the-fly, e.g. for regional news.

Default: no

--dvbin-channel-switch-offset=<integer>

This value is not meant for setting via configuration, but used in channel switching. An input.conf can cycle this value up and down to perform channel switching. This number effectively gives the offset to the initially tuned to channel in the channel list.

An example input.conf could contain: H cycle dvbin-channel-switch-offset up, K cycle dvbin-channel-switch-offset down

--alsa-device=<device>

Deprecated, use --audio-device (requires alsa/ prefix).

--alsa-resample=yes

Enable ALSA resampling plugin. (This is disabled by default, because some drivers report incorrect audio delay in some cases.)

--alsa-mixer-device=<device>

Set the mixer device used with ao-volume (default: default).

--alsa-mixer-name=<name>

Set the name of the mixer element (default: Master). This is for example PCM or Master.

--alsa-mixer-index=<number>

Set the index of the mixer channel (default: 0). Consider the output of "amixer scontrols", then the index is the number that follows the name of the element.

--alsa-non-interleaved

Allow output of non-interleaved formats (if the audio decoder uses this format). Currently disabled by default, because some popular ALSA plugins are utterly broken with non-interleaved formats.

--alsa-ignore-chmap

Don't read or set the channel map of the ALSA device - only request the required number of channels, and then pass the audio as-is to it. This option most likely should not be used. It can be useful for debugging, or for static setups with a specially engineered ALSA configuration (in this case you should always force the same layout with --audio-channels, or it will work only for files which use the layout implicit to your ALSA device).

--alsa-buffer-time=<microseconds>

Set the requested buffer time in microseconds. A value of 0 skips requesting anything from the ALSA API. This and the --alsa-periods option uses the ALSA near functions to set the requested parameters. If doing so results in an empty configuration set, setting these parameters is skipped.

Both options control the buffer size. A low buffer size can lead to higher CPU usage and audio dropouts, while a high buffer size can lead to higher latency in volume changes and other filtering.

--alsa-periods=<number>

Number of periods requested from the ALSA API. See --alsa-buffer-time for further remarks.

--scale=<filter>

The filter function to use when upscaling video.

There are some more filters, but most are not as useful. For a complete list, pass help as value, e.g.:

mpv --scale=help

--cscale=<filter>

As --scale, but for interpolating chroma information. If the image is not subsampled, this option is ignored entirely.

--dscale=<filter>

Like --scale, but apply these filters on downscaling instead. If this option is unset, the filter implied by --scale will be applied.

--tscale=<filter>

The filter used for interpolating the temporal axis (frames). This is only used if --interpolation is enabled. The only valid choices for --tscale are separable convolution filters (use --tscale=help to get a list). The default is mitchell.

Common --tscale choices include oversample, linear, catmull_rom, mitchell, gaussian, or bicubic. These are listed in increasing order of smoothness/blurriness, with bicubic being the smoothest/blurriest and oversample being the sharpest/least smooth.

--scale-param1=<value>, --scale-param2=<value>, --cscale-param1=<value>, --cscale-param2=<value>, --dscale-param1=<value>, --dscale-param2=<value>, --tscale-param1=<value>, --tscale-param2=<value>

Set filter parameters. By default, these are set to the special string default, which maps to a scaler-specific default value. Ignored if the filter is not tunable. Currently, this affects the following filter parameters:

--scale-blur=<value>, --scale-wblur=<value>, --cscale-blur=<value>, --cscale-wblur=<value>, --dscale-blur=<value>, --dscale-wblur=<value>, --tscale-blur=<value>, --tscale-wblur=<value>

Kernel/window scaling factor (also known as a blur factor). Decreasing this makes the result sharper, increasing it makes it blurrier (default 0). If set to 0, the kernel's preferred blur factor is used. Note that setting this too low (eg. 0.5) leads to bad results. It's generally recommended to stick to values between 0.8 and 1.2.

--scale-clamp=<0.0-1.0>, --cscale-clamp, --dscale-clamp, --tscale-clamp

Specifies a weight bias to multiply into negative coefficients. Specifying --scale-clamp=1 has the effect of removing negative weights completely, thus effectively clamping the value range to [0-1]. Values between 0.0 and 1.0 can be specified to apply only a moderate diminishment of negative weights. This is especially useful for --tscale, where it reduces excessive ringing artifacts in the temporal domain (which typically manifest themselves as short flashes or fringes of black, mostly around moving edges) in exchange for potentially adding more blur. The default for --tscale-clamp is 1.0, the others default to 0.0.

--scale-cutoff=<value>, --cscale-cutoff=<value>, --dscale-cutoff=<value>

Cut off the filter kernel prematurely once the value range drops below this threshold. Doing so allows more aggressive pruning of skippable coefficients by disregarding parts of the LUT which are effectively zeroed out by the window function. Only affects polar (EWA) filters. The default is 0.001 for each, which is perceptually transparent but provides a 10%-20% speedup, depending on the exact radius and filter kernel chosen.

--scale-taper=<value>, --scale-wtaper=<value>, --dscale-taper=<value>, --dscale-wtaper=<value>, --cscale-taper=<value>, --cscale-wtaper=<value>, --tscale-taper=<value>, --tscale-wtaper=<value>

Kernel/window taper factor. Increasing this flattens the filter function. Value range is 0 to 1. A value of 0 (the default) means no flattening, a value of 1 makes the filter completely flat (equivalent to a box function). Values in between mean that some portion will be flat and the actual filter function will be squeezed into the space in between.

--scale-radius=<value>, --cscale-radius=<value>, --dscale-radius=<value>, --tscale-radius=<value>

Set radius for tunable filters, must be a float number between 0.5 and 16.0. Defaults to the filter's preferred radius if not specified. Doesn't work for every scaler and VO combination.

Note that depending on filter implementation details and video scaling ratio, the radius that actually being used might be different (most likely being increased a bit).

--scale-antiring=<value>, --cscale-antiring=<value>, --dscale-antiring=<value>, --tscale-antiring=<value>

Set the antiringing strength. This tries to eliminate ringing, but can introduce other artifacts in the process. Must be a float number between 0.0 and 1.0. The default value of 0.0 disables antiringing entirely.

Note that this doesn't affect the special filters bilinear and bicubic_fast, nor does it affect any polar (EWA) scalers.

--scale-window=<window>, --cscale-window=<window>, --dscale-window=<window>, --tscale-window=<window>

(Advanced users only) Choose a custom windowing function for the kernel. Defaults to the filter's preferred window if unset. Use --scale-window=help to get a list of supported windowing functions.

--scale-wparam=<window>, --cscale-wparam=<window>, --cscale-wparam=<window>, --tscale-wparam=<window>

(Advanced users only) Configure the parameter for the window function given by --scale-window etc. By default, these are set to the special string default, which maps to a window-specific default value. Ignored if the window is not tunable. Currently, this affects the following window parameters:

--scaler-lut-size=<4..10>

Set the size of the lookup texture for scaler kernels (default: 6). The actual size of the texture is 2^N for an option value of N. So the lookup texture with the default setting uses 64 samples.

All weights are linearly interpolated from those samples, so increasing the size of lookup table might improve the accuracy of scaler.

--scaler-resizes-only

Disable the scaler if the video image is not resized. In that case, bilinear is used instead of whatever is set with --scale. Bilinear will reproduce the source image perfectly if no scaling is performed. Enabled by default. Note that this option never affects --cscale.

--correct-downscaling

When using convolution based filters, extend the filter size when downscaling. Increases quality, but reduces performance while downscaling.

This will perform slightly sub-optimally for anamorphic video (but still better than without it) since it will extend the size to match only the milder of the scale factors between the axes.

Note: this option is ignored when using bilinear downscaling (the default).

--linear-downscaling

Scale in linear light when downscaling. It should only be used with a --fbo-format that has at least 16 bit precision. This option has no effect on HDR content.

--linear-upscaling

Scale in linear light when upscaling. Like --linear-downscaling, it should only be used with a --fbo-format that has at least 16 bits precisions. This is not usually recommended except for testing/specific purposes. Users are advised to either enable --sigmoid-upscaling or keep both options disabled (i.e. scaling in gamma light).

--sigmoid-upscaling

When upscaling, use a sigmoidal color transform to avoid emphasizing ringing artifacts. This is incompatible with and replaces --linear-upscaling. (Note that sigmoidization also requires linearization, so the LINEAR rendering step fires in both cases)

--sigmoid-center

The center of the sigmoid curve used for --sigmoid-upscaling, must be a float between 0.0 and 1.0. Defaults to 0.75 if not specified.

--sigmoid-slope

The slope of the sigmoid curve used for --sigmoid-upscaling, must be a float between 1.0 and 20.0. Defaults to 6.5 if not specified.

--interpolation

Reduce stuttering caused by mismatches in the video fps and display refresh rate (also known as judder).

WARNING:

This essentially attempts to interpolate the missing frames by convoluting the video along the temporal axis. The filter used can be controlled using the --tscale setting.

--interpolation-threshold=<0..1,-1>

Threshold below which frame ratio interpolation gets disabled (default: 0.01). This is calculated as abs(disphz/vfps - 1) < threshold, where vfps is the speed-adjusted video FPS, and disphz the display refresh rate. (The speed-adjusted video FPS is roughly equal to the normal video FPS, but with slowdown and speedup applied. This matters if you use --video-sync=display-resample to make video run synchronously to the display FPS, or if you change the speed property.)

The default is intended to enable interpolation in scenarios where retiming with the --video-sync=display-* cannot adjust the speed of the video sufficiently for smooth playback. For example if a video is 60.00 FPS and your display refresh rate is 59.94 Hz, interpolation will never be activated, since the mismatch is within 1% of the refresh rate. The default also handles the scenario when mpv cannot determine the container FPS, such as during certain live streams, and may dynamically toggle interpolation on and off. In this scenario, the default would be to not use interpolation but rather to allow --video-sync=display-* to retime the video to match display refresh rate. See --video-sync-max-video-change for more information about how mpv will retime video.

Also note that if you use e.g. --video-sync=display-vdrop, small deviations in the rate can disable interpolation and introduce a discontinuity every other minute.

Set this to -1 to disable this logic.

--opengl-pbo

Enable use of PBOs. On some drivers this can be faster, especially if the source video size is huge (e.g. so called "4K" video). On other drivers it might be slower or cause latency issues.

--dither-depth=<N|no|auto>

Set dither target depth to N. Default: no.

Note that the depth of the connected video display device cannot be detected. Often, LCD panels will do dithering on their own, which conflicts with this option and leads to ugly output.

--dither-size-fruit=<2-8>

Set the size of the dither matrix (default: 6). The actual size of the matrix is (2^N) x (2^N) for an option value of N, so a value of 6 gives a size of 64x64. The matrix is generated at startup time, and a large matrix can take rather long to compute (seconds).

Used in --dither=fruit mode only.

--dither=<fruit|ordered|error-diffusion|no>

Select dithering algorithm (default: fruit). (Normally, the --dither-depth option controls whether dithering is enabled.)

The error-diffusion option requires compute shader support. It also requires large amount of shared memory to run, the size of which depends on both the kernel (see --error-diffusion option below) and the height of video window. It will fallback to fruit dithering if there is no enough shared memory to run the shader.

--temporal-dither

Enable temporal dithering. (Only active if dithering is enabled in general.) This changes between 8 different dithering patterns on each frame by changing the orientation of the tiled dithering matrix. Unfortunately, this can lead to flicker on LCD displays, since these have a high reaction time.

--temporal-dither-period=<1-128>

Determines how often the dithering pattern is updated when --temporal-dither is in use. 1 (the default) will update on every video frame, 2 on every other frame, etc.

--error-diffusion=<kernel>

The error diffusion kernel to use when --dither=error-diffusion is set.

There are other kernels (use --error-diffusion=help to list) but most of them are much slower and demanding even larger amount of shared memory. Among these kernels, burkes achieves a good balance between performance and quality, and probably is the one you want to try first.

--gpu-debug

Enables GPU debugging. What this means depends on the API type. For OpenGL, it calls glGetError(), and requests a debug context. For Vulkan, it enables validation layers.

--opengl-swapinterval=<n>

Interval in displayed frames between two buffer swaps. 1 is equivalent to enable VSYNC, 0 to disable VSYNC. Defaults to 1 if not specified.

Note that this depends on proper OpenGL vsync support. On some platforms and drivers, this only works reliably when in fullscreen mode. It may also require driver-specific hacks if using multiple monitors, to ensure mpv syncs to the right one. Compositing window managers can also lead to bad results, as can missing or incorrect display FPS information (see --override-display-fps).

--vulkan-device=<device name>

The name of the Vulkan device to use for rendering and presentation. Use --vulkan-device=help to see the list of available devices and their names. If left unspecified, the first enumerated hardware Vulkan device will be used.

--vulkan-swap-mode=<mode>

Controls the presentation mode of the vulkan swapchain. This is similar to the --opengl-swapinterval option.

--vulkan-queue-count=<1..8>

Controls the number of VkQueues used for rendering (limited by how many your device supports). In theory, using more queues could enable some parallelism between frames (when using a --swapchain-depth higher than 1), but it can also slow things down on hardware where there's no true parallelism between queues. (Default: 1)

--vulkan-async-transfer

Enables the use of async transfer queues on supported vulkan devices. Using them allows transfer operations like texture uploads and blits to happen concurrently with the actual rendering, thus improving overall throughput and power consumption. Enabled by default, and should be relatively safe.

--vulkan-async-compute

Enables the use of async compute queues on supported vulkan devices. Using this, in theory, allows out-of-order scheduling of compute shaders with graphics shaders, thus enabling the hardware to do more effective work while waiting for pipeline bubbles and memory operations. Not beneficial on all GPUs. It's worth noting that if async compute is enabled, and the device supports more compute queues than graphics queues (bound by the restrictions set by --vulkan-queue-count), mpv will internally try and prefer the use of compute shaders over fragment shaders wherever possible. Enabled by default, although Nvidia users may want to disable it.

--vulkan-disable-events

Disable the use of VkEvents, for debugging purposes or for compatibility with some older drivers / vulkan portability layers that don't provide working VkEvent support.

--vulkan-display-display=<n>

The index of the display, on the selected Vulkan device, to present on when using the displayvk GPU context. Use --vulkan-display-display=help to see the list of available displays. If left unspecified, the first enumerated display will be used.

--vulkan-display-mode=<n>

The index of the display mode, of the selected Vulkan display, to use when using the displayvk GPU context. Use --vulkan-display-mode=help to see the list of available modes. If left unspecified, the first enumerated mode will be used.

--vulkan-display-plane=<n>

The index of the plane, on the selected Vulkan device, to present on when using the displayvk GPU context. Use --vulkan-display-plane=help to see the list of available planes. If left unspecified, the first enumerated plane will be used.

--d3d11-exclusive-fs=<yes|no>

Switches the D3D11 swap chain fullscreen state to 'fullscreen' when fullscreen video is requested. Also known as "exclusive fullscreen" or "D3D fullscreen" in other applications. Gives mpv full control of rendering on the swap chain's screen. Off by default.

--d3d11-warp=<yes|no|auto>

Use WARP (Windows Advanced Rasterization Platform) with the D3D11 GPU backend (default: auto). This is a high performance software renderer. By default, it is only used when the system has no hardware adapters that support D3D11. While the extended GPU features will work with WARP, they can be very slow.

--d3d11-feature-level=<12_1|12_0|11_1|11_0|10_1|10_0|9_3|9_2|9_1>

Select a specific feature level when using the D3D11 GPU backend. By default, the highest available feature level is used. This option can be used to select a lower feature level, which is mainly useful for debugging. Most extended GPU features will not work at 9_x feature levels.

--d3d11-flip=<yes|no>

Enable flip-model presentation, which avoids unnecessarily copying the backbuffer by sharing surfaces with the DWM (default: yes). This may cause performance issues with older drivers. If flip-model presentation is not supported (for example, on Windows 7 without the platform update), mpv will automatically fall back to the older bitblt presentation model.

--d3d11-sync-interval=<0..4>

Schedule each frame to be presented for this number of VBlank intervals. (default: 1) Setting to 1 will enable VSync, setting to 0 will disable it.

--d3d11-adapter=<adapter name|help>

Select a specific D3D11 adapter to utilize for D3D11 rendering. Will pick the default adapter if unset. Alternatives are listed when the name "help" is given.

Checks for matches based on the start of the string, case insensitive. Thus, if the description of the adapter starts with the vendor name, that can be utilized as the selection parameter.

Hardware decoders utilizing the D3D11 rendering abstraction's helper functionality to receive a device, such as D3D11VA or DXVA2's DXGI mode, will be affected by this choice.

--d3d11-output-format=<auto|rgba8|bgra8|rgb10_a2|rgba16f>

Select a specific D3D11 output format to utilize for D3D11 rendering. "auto" is the default, which will pick either rgba8 or rgb10_a2 depending on the configured desktop bit depth. rgba16f and bgra8 are left out of the autodetection logic, and are available for manual testing.

NOTE:

--d3d11-output-csp=<auto|srgb|linear|pq|bt.2020>

Select a specific D3D11 output color space to utilize for D3D11 rendering. "auto" is the default, which will select the color space of the desktop on which the swap chain is located.

Values other than "srgb" and "pq" have had issues in testing, so they are mostly available for manual testing.

NOTE:

--d3d11va-zero-copy=<yes|no>

By default, when using hardware decoding with --gpu-api=d3d11, the video image will be copied (GPU-to-GPU) from the decoder surface to a shader resource. Set this option to avoid that copy by sampling directly from the decoder image. This may increase performance and reduce power usage, but can cause the image to be sampled incorrectly on the bottom and right edges due to padding, and may invoke driver bugs, since Direct3D 11 technically does not allow sampling from a decoder surface (though most drivers support it.)

Currently only relevant for --gpu-api=d3d11.

--wayland-app-id=<string>

Set the client app id for Wayland-based video output methods (default: mpv).

--wayland-disable-vsync=<yes|no>

Disable vsync for the wayland contexts (default: no). Useful for benchmarking the wayland context when combined with video-sync=display-desync, --no-audio, and --untimed=yes. Only works with --gpu-context=wayland and --gpu-context=waylandvk.

--wayland-edge-pixels-pointer=<value>

Defines the size of an edge border (default: 10) to initiate client side resize events in the wayland contexts with the mouse. This is only active if there are no server side decorations from the compositor.

--wayland-edge-pixels-touch=<value>

Defines the size of an edge border (default: 32) to initiate client side resizes events in the wayland contexts with touch events.

--spirv-compiler=<compiler>

Controls which compiler is used to translate GLSL to SPIR-V. This is (currently) only relevant for --gpu-api=vulkan and --gpu-api=d3d11. The possible choices are currently only:

NOTE:

--glsl-shader=<file>, --glsl-shaders=<file-list>

Custom GLSL hooks. These are a flexible way to add custom fragment shaders, which can be injected at almost arbitrary points in the rendering pipeline, and access all previous intermediate textures.

Each use of the --glsl-shader option will add another file to the internal list of shaders, while --glsl-shaders takes a list of files, and overwrites the internal list with it. The latter is a path list option (see List Options for details).

The general syntax of a user shader looks like this:

//!METADATA ARGS...
//!METADATA ARGS...
vec4 hook() {
   ...
   return something;
}
//!METADATA ARGS...
//!METADATA ARGS...
...

Each section of metadata, along with the non-metadata lines after it, defines a single block. There are currently two types of blocks, HOOKs and TEXTUREs.

A TEXTURE block can set the following options:

Following the metadata is a string of bytes in hexadecimal notation that define the raw texture data, corresponding to the format specified by FORMAT, on a single line with no extra whitespace.

A HOOK block can set the following options:

Each bound mpv texture (via BIND) will make available the following definitions to that shader pass, where NAME is the name of the bound texture:

Normally, users should use either NAME_tex or NAME_texOff to read from the texture. For some shaders however , it can be better for performance to do custom sampling from NAME_raw, in which case care needs to be taken to respect NAME_mul and NAME_rot.

In addition to these parameters, the following uniforms are also globally available:

Internally, vo_gpu may generate any number of the following textures. Whenever a texture is rendered and saved by vo_gpu, all of the passes that have hooked into it will run, in the order they were added by the user. This is a list of the legal hook points:

Only the textures labelled with resizable may be transformed by the pass. When overwriting a texture marked fixed, the WIDTH, HEIGHT and OFFSET must be left at their default values.

--glsl-shader=<file>

CLI/config file only alias for --glsl-shaders-append.

--deband

Enable the debanding algorithm. This greatly reduces the amount of visible banding, blocking and other quantization artifacts, at the expense of very slightly blurring some of the finest details. In practice, it's virtually always an improvement - the only reason to disable it would be for performance.

--deband-iterations=<1..16>

The number of debanding steps to perform per sample. Each step reduces a bit more banding, but takes time to compute. Note that the strength of each step falls off very quickly, so high numbers (>4) are practically useless. (Default 1)

--deband-threshold=<0..4096>

The debanding filter's cut-off threshold. Higher numbers increase the debanding strength dramatically but progressively diminish image details. (Default 32)

--deband-range=<1..64>

The debanding filter's initial radius. The radius increases linearly for each iteration. A higher radius will find more gradients, but a lower radius will smooth more aggressively. (Default 16)

If you increase the --deband-iterations, you should probably decrease this to compensate.

--deband-grain=<0..4096>

Add some extra noise to the image. This significantly helps cover up remaining quantization artifacts. Higher numbers add more noise. (Default 48)

--sharpen=<value>

If set to a value other than 0, enable an unsharp masking filter. Positive values will sharpen the image (but add more ringing and aliasing). Negative values will blur the image. If your GPU is powerful enough, consider alternatives like the ewa_lanczossharp scale filter, or the --scale-blur option.

--opengl-glfinish

Call glFinish() before swapping buffers (default: disabled). Slower, but might improve results when doing framedropping. Can completely ruin performance. The details depend entirely on the OpenGL driver.

--opengl-waitvsync

Call glXWaitVideoSyncSGI after each buffer swap (default: disabled). This may or may not help with video timing accuracy and frame drop. It's possible that this makes video output slower, or has no effect at all.

X11/GLX only.

--opengl-dwmflush=<no|windowed|yes|auto>

Calls DwmFlush after swapping buffers on Windows (default: auto). It also sets SwapInterval(0) to ignore the OpenGL timing. Values are: no (disabled), windowed (only in windowed mode), yes (also in full screen).

The value auto will try to determine whether the compositor is active, and calls DwmFlush only if it seems to be.

This may help to get more consistent frame intervals, especially with high-fps clips - which might also reduce dropped frames. Typically, a value of windowed should be enough, since full screen may bypass the DWM.

Windows only.

--angle-d3d11-feature-level=<11_0|10_1|10_0|9_3>

Selects a specific feature level when using the ANGLE backend with D3D11. By default, the highest available feature level is used. This option can be used to select a lower feature level, which is mainly useful for debugging. Note that OpenGL ES 3.0 is only supported at feature level 10_1 or higher. Most extended OpenGL features will not work at lower feature levels (similar to --gpu-dumb-mode).

Windows with ANGLE only.

--angle-d3d11-warp=<yes|no|auto>

Use WARP (Windows Advanced Rasterization Platform) when using the ANGLE backend with D3D11 (default: auto). This is a high performance software renderer. By default, it is used when the Direct3D hardware does not support Direct3D 11 feature level 9_3. While the extended OpenGL features will work with WARP, they can be very slow.

Windows with ANGLE only.

--angle-egl-windowing=<yes|no|auto>

Use ANGLE's built in EGL windowing functions to create a swap chain (default: auto). If this is set to no and the D3D11 renderer is in use, ANGLE's built in swap chain will not be used and a custom swap chain that is optimized for video rendering will be created instead. If set to auto, a custom swap chain will be used for D3D11 and the built in swap chain will be used for D3D9. This option is mainly for debugging purposes, in case the custom swap chain has poor performance or does not work.

If set to yes, the --angle-max-frame-latency, --angle-swapchain-length and --angle-flip options will have no effect.

Windows with ANGLE only.

--angle-flip=<yes|no>

Enable flip-model presentation, which avoids unnecessarily copying the backbuffer by sharing surfaces with the DWM (default: yes). This may cause performance issues with older drivers. If flip-model presentation is not supported (for example, on Windows 7 without the platform update), mpv will automatically fall back to the older bitblt presentation model.

If set to no, the --angle-swapchain-length option will have no effect.

Windows with ANGLE only.

--angle-renderer=<d3d9|d3d11|auto>

Forces a specific renderer when using the ANGLE backend (default: auto). In auto mode this will pick D3D11 for systems that support Direct3D 11 feature level 9_3 or higher, and D3D9 otherwise. This option is mainly for debugging purposes. Normally there is no reason to force a specific renderer, though --angle-renderer=d3d9 may give slightly better performance on old hardware. Note that the D3D9 renderer only supports OpenGL ES 2.0, so most extended OpenGL features will not work if this renderer is selected (similar to --gpu-dumb-mode).

Windows with ANGLE only.

--macos-force-dedicated-gpu=<yes|no>

Deactivates the automatic graphics switching and forces the dedicated GPU. (default: no)

macOS only.

--cocoa-cb-sw-renderer=<yes|no|auto>

Use the Apple Software Renderer when using cocoa-cb (default: auto). If set to no the software renderer is never used and instead fails when a the usual pixel format could not be created, yes will always only use the software renderer, and auto only falls back to the software renderer when the usual pixel format couldn't be created.

macOS only.

--cocoa-cb-10bit-context=<yes|no>

Creates a 10bit capable pixel format for the context creation (default: yes). Instead of 8bit integer framebuffer a 16bit half-float framebuffer is requested.

macOS only.

--macos-title-bar-appearance=<appearance>

Sets the appearance of the title bar (default: auto). Not all combinations of appearances and --macos-title-bar-material materials make sense or are unique. Appearances that are not supported by you current macOS version fall back to the default value. macOS and cocoa-cb only

<appearance> can be one of the following:

--macos-title-bar-material=<material>

Sets the material of the title bar (default: titlebar). All deprecated materials should not be used on macOS 10.14+ because their functionality is not guaranteed. Not all combinations of materials and --macos-title-bar-appearance appearances make sense or are unique. Materials that are not supported by you current macOS version fall back to the default value. macOS and cocoa-cb only

<material> can be one of the following:

--macos-title-bar-color=<color>

Sets the color of the title bar (default: completely transparent). Is influenced by --macos-title-bar-appearance and --macos-title-bar-material. See --sub-color for color syntax.

--macos-fs-animation-duration=<default|0-1000>

Sets the fullscreen resize animation duration in ms (default: default). The default value is slightly less than the system's animation duration (500ms) to prevent some problems when the end of an async animation happens at the same time as the end of the system wide fullscreen animation. Setting anything higher than 500ms will only prematurely cancel the resize animation after the system wide animation ended. The upper limit is still set at 1000ms since it's possible that Apple or the user changes the system defaults. Anything higher than 1000ms though seems too long and shouldn't be set anyway. (macOS and cocoa-cb only)

--macos-app-activation-policy=<regular|accessory|prohibited>

Changes the App activation policy. With accessory the mpv icon in the Dock can be hidden. (default: regular)

macOS only.

--macos-geometry-calculation=<visible|whole>

This changes the rectangle which is used to calculate the screen position and size of the window (default: visible). visible takes the the menu bar and Dock into account and the window is only positioned/sized within the visible screen frame rectangle, whole takes the whole screen frame rectangle and ignores the menu bar and Dock. Other previous restrictions still apply, like the window can't be placed on top of the menu bar etc.

macOS only.

--android-surface-size=<WxH>

Set dimensions of the rendering surface used by the Android gpu context. Needs to be set by the embedding application if the dimensions change during runtime (i.e. if the device is rotated), via the surfaceChanged callback.

Android with --gpu-context=android only.

--gpu-sw

Continue even if a software renderer is detected.

--gpu-context=<sys>

The value auto (the default) selects the GPU context. You can also pass help to get a complete list of compiled in backends (sorted by autoprobe order).

--gpu-api=<type>

Controls which type of graphics APIs will be accepted:

--opengl-es=<mode>

Controls which type of OpenGL context will be accepted:

--fbo-format=<fmt>

Selects the internal format of textures used for FBOs. The format can influence performance and quality of the video output. fmt can be one of: rgb8, rgb10, rgb10_a2, rgb16, rgb16f, rgb32f, rgba12, rgba16, rgba16f, rgba16hf, rgba32f.

Default: auto, which first attempts to utilize 16bit float (rgba16f, rgba16hf), and falls back to rgba16 if those are not available. Finally, attempts to utilize rgb10_a2 or rgba8 if all of the previous formats are not available.

--gamma-factor=<0.1..2.0>

Set an additional raw gamma factor (default: 1.0). If gamma is adjusted in other ways (like with the --gamma option or key bindings and the gamma property), the value is multiplied with the other gamma value.

Recommended values based on the environmental brightness:

NOTE: This is based around the assumptions of typical movie content, which contains an implicit end-to-end of about 0.8 from scene to display. For bright environments it can be useful to cancel that out.

--gamma-auto

Automatically corrects the gamma value depending on ambient lighting conditions (adding a gamma boost for bright rooms).

With ambient illuminance of 16 lux, mpv will pick the 1.0 gamma value (no boost), and slightly increase the boost up until 1.2 for 256 lux.

NOTE: Only implemented on macOS.

--target-prim=<value>

Specifies the primaries of the display. Video colors will be adapted to this colorspace when ICC color management is not being used. Valid values are:

--target-trc=<value>

Specifies the transfer characteristics (gamma) of the display. Video colors will be adjusted to this curve when ICC color management is not being used. Valid values are:

NOTE:

--target-peak=<auto|nits>

Specifies the measured peak brightness of the output display, in cd/m^2 (AKA nits). The interpretation of this brightness depends on the configured --target-trc. In all cases, it imposes a limit on the signal values that will be sent to the display. If the source exceeds this brightness level, a tone mapping filter will be inserted. For HLG, it has the additional effect of parametrizing the inverse OOTF, in order to get colorimetrically consistent results with the mastering display. For SDR, or when using an ICC (profile (--icc-profile), setting this to a value above 203 essentially causes the display to be treated as if it were an HDR display in disguise. (See the note below)

In auto mode (the default), the chosen peak is an appropriate value based on the TRC in use. For SDR curves, it uses 203. For HDR curves, it uses 203 * the transfer function's nominal peak.

NOTE:

--tone-mapping=<value>

Specifies the algorithm used for tone-mapping images onto the target display. This is relevant for both HDR->SDR conversion as well as gamut reduction (e.g. playing back BT.2020 content on a standard gamut display). Valid values are:

--tone-mapping-param=<value>

Set tone mapping parameters. By default, this is set to the special string default, which maps to an algorithm-specific default value. Ignored if the tone mapping algorithm is not tunable. This affects the following tone mapping algorithms:

--tone-mapping-max-boost=<1.0..10.0>

Upper limit for how much the tone mapping algorithm is allowed to boost the average brightness by over-exposing the image. The default value of 1.0 allows no additional brightness boost. A value of 2.0 would allow over-exposing by a factor of 2, and so on. Raising this setting can help reveal details that would otherwise be hidden in dark scenes, but raising it too high will make dark scenes appear unnaturally bright.

--hdr-compute-peak=<auto|yes|no>

Compute the HDR peak and frame average brightness per-frame instead of relying on tagged metadata. These values are averaged over local regions as well as over several frames to prevent the value from jittering around too much. This option basically gives you dynamic, per-scene tone mapping. Requires compute shaders, which is a fairly recent OpenGL feature, and will probably also perform horribly on some drivers, so enable at your own risk. The special value auto (default) will enable HDR peak computation automatically if compute shaders and SSBOs are supported.

--hdr-peak-decay-rate=<1.0..1000.0>

The decay rate used for the HDR peak detection algorithm (default: 100.0). This is only relevant when --hdr-compute-peak is enabled. Higher values make the peak decay more slowly, leading to more stable values at the cost of more "eye adaptation"-like effects (although this is mitigated somewhat by --hdr-scene-threshold). A value of 1.0 (the lowest possible) disables all averaging, meaning each frame's value is used directly as measured, but doing this is not recommended for "noisy" sources since it may lead to excessive flicker. (In signal theory terms, this controls the time constant "tau" of an IIR low pass filter)

--hdr-scene-threshold-low=<0.0..100.0>, --hdr-scene-threshold-high=<0.0..100.0>

The lower and upper thresholds (in dB) for a brightness difference to be considered a scene change (default: 5.5 low, 10.0 high). This is only relevant when --hdr-compute-peak is enabled. Normally, small fluctuations in the frame brightness are compensated for by the peak averaging mechanism, but for large jumps in the brightness this can result in the frame remaining too bright or too dark for up to several seconds, depending on the value of --hdr-peak-decay-rate. To counteract this, when the brightness between the running average and the current frame exceeds the low threshold, mpv will make the averaging filter more aggressive, up to the limit of the high threshold (at which point the filter becomes instant).

--tone-mapping-desaturate=<0.0..1.0>

Apply desaturation for highlights (default: 0.75). The parameter controls the strength of the desaturation curve. A value of 0.0 completely disables it, while a value of 1.0 means that overly bright colors will tend towards white. (This is not always the case, especially not for highlights that are near primary colors)

Values in between apply progressively more/less aggressive desaturation. This setting helps prevent unnaturally oversaturated colors for super-highlights, by (smoothly) turning them into less saturated (per channel tone mapped) colors instead. This makes images feel more natural, at the cost of chromatic distortions for out-of-range colors. The default value of 0.75 provides a good balance. Setting this to 0.0 preserves the chromatic accuracy of the tone mapping process.

--tone-mapping-desaturate-exponent=<0.0..20.0>

This setting controls the exponent of the desaturation curve, which controls how bright a color needs to be in order to start being desaturated. The default of 1.5 provides a reasonable balance. Decreasing this exponent makes the curve more aggressive.

--gamut-warning

If enabled, mpv will mark all clipped/out-of-gamut pixels that exceed a given threshold (currently hard-coded to 101%). The affected pixels will be inverted to make them stand out. Note: This option applies after the effects of all of mpv's color space transformation / tone mapping options, so it's a good idea to combine this with --tone-mapping=clip and use --target-prim to set the gamut to simulate. For example, --target-prim=bt.709 would make mpv highlight all pixels that exceed the gamut of a standard gamut (sRGB) display. This option also does not work well with ICC profiles, since the 3DLUTs are always generated against the source color space and have chromatically-accurate clipping built in.

--gamut-clipping

If enabled (default: yes), mpv will colorimetrically clip out-of-gamut colors by desaturating them (preserving luma), rather than hard-clipping each component individually. This should make playback of wide gamut content on typical (standard gamut) monitors look much more aesthetically pleasing and less blown-out.

--use-embedded-icc-profile

Load the embedded ICC profile contained in media files such as PNG images. (Default: yes). Note that this option only works when also using a display ICC profile (--icc-profile or --icc-profile-auto), and also requires LittleCMS 2 support.

--icc-profile=<file>

Load an ICC profile and use it to transform video RGB to screen output. Needs LittleCMS 2 support compiled in. This option overrides the --target-prim, --target-trc and --icc-profile-auto options.

--icc-profile-auto

Automatically select the ICC display profile currently specified by the display settings of the operating system.

NOTE: On Windows, the default profile must be an ICC profile. WCS profiles are not supported.

Applications using libmpv with the render API need to provide the ICC profile via MPV_RENDER_PARAM_ICC_PROFILE.

--icc-cache-dir=<dirname>

Store and load the 3D LUTs created from the ICC profile in this directory. This can be used to speed up loading, since LittleCMS 2 can take a while to create a 3D LUT. Note that these files contain uncompressed LUTs. Their size depends on the --icc-3dlut-size, and can be very big.

NOTE: This is not cleaned automatically, so old, unused cache files may stick around indefinitely.

--icc-intent=<value>

Specifies the ICC intent used for the color transformation (when using --icc-profile).