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Allows stepping back one frame via the frame_back_step inout command, bound to "," by default. This uses the precise seeking facility, and a perfect frame index built on the fly. The index is built during playback and precise seeking, and contains (as of this commit) the last 100 displayed or skipped frames. This index is used to find the PTS of the previous frame, which is then used as target for a precise seek. If no PTS is found, the core attempts to do a seek before the current frame, and skip decoded frames until the current frame is reached; this will create a sufficient index and the normal backstep algorithm can be applied. This can be rather slow. The worst case for backstepping is about the same as the worst case for precise seeking if the previous frame can be deduced from the index. If not, the worst case will be twice as slow. There's also some minor danger that the index is incorrect in case framedropping is involved. For framedropping due to --framedrop, this problem is ignored (use of --framedrop is discouraged anyway). For framedropping during precise seeking (done to make it faster), we try to not add frames to the index that are produced when this can happen. I'm not sure how well that works (or if the logic is sane), and it's sure to break with some video filters. In the worst case, backstepping might silently skip frames if you backstep after a user-initiated precise seek. (Precise seeks to do indexing are not affected.) Likewise, video filters that somehow change timing of frames and do not do this in a deterministic way (i.e. if you seek to a position, frames with different timings are produced than when the position is reached during normal playback) will make backstepping silently jump to the wrong frame. Enabling/disabling filters during playback (like for example deinterlacing) will have similar bad effects.
344 lines
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ReStructuredText
344 lines
13 KiB
ReStructuredText
.. _input:
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INPUT.CONF
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==========
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The input.conf file consists of a list of key bindings, for example:
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| s screenshot # take a screenshot with the s key
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Each line maps a key to an input command. Keys are specified with their literal
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value (upper case if combined with ``Shift``), or a name for special keys. For
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example, ``a`` maps to the ``a`` key without shift, and ``A`` maps to ``a``
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with shift.
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A list of special keys can be obtained with
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| **mpv** --input-keylist
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In general, keys can be combined with ``Shift``, ``Ctrl`` and ``Alt``:
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| ctrl+q quit
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**mpv** can be started in input test mode, which displays key bindings and the
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commands they're bound to on the OSD, instead of running the commands:
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| **mpv** --input-test --demuxer=rawvideo --rawvideo=w=1280:h=720 /dev/zero
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(Commands which normally close the player will not work in this mode, and you
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must kill **mpv** externally to make it exit.)
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General input command syntax
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----------------------------
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`[Shift+][Ctrl+][Alt+][Meta+]<key> [<prefixes>] <command> (<argument>)*`
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Newlines always start a new binding. ``#`` starts a comment (outside of quoted
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string arguments). To bind commands to the ``#`` key, ``SHARP`` can be used.
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<key> is either the literal character the key produces (ASCII or unicode
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character), or a symbol name.
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Arguments are separated by whitespace. This applies even to string arguments.
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For this reason, string arguments should be quoted with ``"``. Inside quotes,
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C style escaping can be used.
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Optional arguments can be skipped with ``-``.
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List of input commands
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----------------------
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ignore
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Use this to "block" keys that should be unbound, and do nothing. Useful for
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disabling default bindings, without disabling all bindings with
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``--no-input-default-bindings``.
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seek <seconds> [relative|absolute|absolute-percent|- [default-precise|exact|keyframes]]
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Change the playback position. By default, seeks by a relative amount of
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seconds.
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The second argument sets the seek mode:
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relative (default)
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Seek relative to current position (a negative value seeks backwards).
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absolute
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Seek to a given time.
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absolute-percent
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Seek to a given percent position.
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The third argument defines how exact the seek is:
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default-precise (default)
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Follow the default behavior as set by ``--hr-seek``, which by default
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does imprecise seeks (like ``keyframes``).
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exact
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Always do exact/hr/precise seeks (slow).
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keyframes
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Always restart playback at keyframe boundaries (fast).
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frame_step
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Play one frame, then pause.
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frame_back_step
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Go back by one frame, then pause. Note that this can be very slow (it tries
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to be precise, not fast), and sometimes fails to behave as expected. How
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well this works depends on whether precise seeking works correctly (e.g.
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see the ``--hr-seek-demuxer-offset`` option). Video filters or other video
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postprocessing that modifies timing of frames (e.g. deinterlacing) should
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usually work, but might make backstepping silently behave incorrectly in
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corner cases.
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This doesn't work with audio-only playback.
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set <property> "<value>"
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Set the given property to the given value.
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add <property> [<value>]
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Add the given value to the property. On overflow or underflow, clamp the
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property to the maximum. If <value> is omitted, assume ``1``.
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cycle <property> [up|down]
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Cycle the given property. ``up`` and ``down`` set the cycle direction. On
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overflow, set the property back to the minimum, on underflow set it to the
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maximum. If ``up`` or ``down`` is omitted, assume ``up``.
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speed_mult <value>
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Multiply the ``speed`` property by the given value.
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screenshot [subtitles|video|window|- [single|each-frame]]
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Take a screenshot.
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First argument:
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<subtitles> (default)
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Save the video image, in its original resolution, and with subtitles.
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Some video outputs may still include the OSD in the output under certain
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circumstances.
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<video>
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Like ``subtitles``, but typically without OSD or subtitles. The exact
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behavior depends on the selected video output.
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<window>
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Save the contents of the mpv window. Typically scaled, with OSD and
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subtitles. The exact behavior depends on the selected video output, and
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if no support is available, this will act like ``video``.
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Second argument:
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<single> (default)
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Take a single screenshot.
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<each-frame>
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Take a screenshot each frame. Issue this command again to stop taking
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screenshots.
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playlist_next [weak|force]
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Go to the next entry on the playlist.
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weak (default)
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If the last file on the playlist is currently played, do nothing.
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force
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Terminate playback if there are no more files on the playlist.
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playlist_prev [weak|force]
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Go to the previous entry on the playlist.
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weak (default)
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If the first file on the playlist is currently played, do nothing.
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force
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Terminate playback if the first file is being played.
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loadfile "<file>" [replace|append]
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Load the given file and play it.
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Second argument:
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<replace> (default)
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Stop playback of the current file, and play the new file immediately.
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<append>
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Append the file to the playlist.
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loadlist "<playlist>" [replace|append]
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Load the given playlist file (like ``--playlist``).
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playlist_clear
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Clear the playlist, except the currently played file.
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run "<command>"
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Run the given command with ``/bin/sh -c``. The string is expanded like in
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``--playing-msg``.
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quit [<code>]
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Exit the player using the given exit code.
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sub_add "<file>"
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Load the given subtitle file. It's not selected as current subtitle after
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loading.
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sub_remove [<id>]
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Remove the given subtitle track. If the ``id`` argument is missing, remove
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the current track. (Works on external subtitle files only.)
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sub_reload [<id>]
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Reload the given subtitle tracks. If the ``id`` argument is missing, remove
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the current track. (Works on external subtitle files only.)
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This works by unloading and re-adding the subtitle track.
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sub_step <skip>
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Change subtitle timing such, that the subtitle event after the next <skip>
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subtitle events is displayed. <skip> can be negative to step back.
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osd [<level>]
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Toggle OSD level. If <level> is specified, set the OSD mode
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(see ``--osd-level`` for valid values).
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print_text "<string>"
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Print text to stdout. The string can contain properties, which are expanded
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like in ``--playing-msg``.
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show_text "<string>" [<duration>|- [<level>]]
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Show text on the OSD. The string can contain properties, which are expanded
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like in ``--playing-msg``. This can be used to show playback time, filename,
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and so on.
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<duration> is the time in ms to show the message. By default, it uses the
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same value as ``--osd-duration``.
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<level> is the minimum OSD level to show the text (see ``--osd-level``).
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show_progress
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Show the progress bar, the elapsed time and the total duration of the file
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on the OSD.
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show_chapters
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Show a list of chapters on the OSD.
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show_tracks
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Show a list of video/audio/subtitle tracks on the OSD.
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Undocumented commands: tv_start_scan, tv_step_channel, tv_step_norm,
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tv_step_chanlist, tv_set_channel, tv_last_channel, tv_set_freq, tv_step_freq,
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tv_set_norm, dvb_set_channel, radio_step_channel, radio_set_channel,
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radio_set_freq, radio_step_freq (all of these should be replaced by properties),
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stop (questionable use), get_property (?), af_switch, af_add, af_del,
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af_clr, af_cmdline, vo_cmdline (experimental).
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Input command prefixes
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----------------------
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osd-auto (default)
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Use the default behavior for this command.
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no-osd
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Do not use any OSD for this command.
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osd-bar
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If possible, show a bar with this command. Seek commands will show the
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progress bar, property changing commands may show the newly set value.
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osd-msg
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If possible, show an OSD message with this command. Seek command show
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the current playback time, property changing commands show the newly set
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value as text.
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osd-msg-bar
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Combine osd-bar and osd-msg.
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All of these are still overridden by the global ``--osd-level`` settings.
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Undocumented prefixes: pausing, pausing_keep, pausing_toggle,
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pausing_keep_force. (Should these be made official?)
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Properties
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----------
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Properties are used to set mpv options during runtime, or to query arbitrary
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information. They can be manipulated with the ``set``/``add``/``cycle``
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commands, and retrieved with ``show_text``, or anything else that uses property
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expansion. (See ``--playing-msg`` how properties are expanded.)
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``W`` indicates whether the property is generally writeable. If an option
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is referenced, the property should take/return exactly the same values as the
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option.
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=========================== = ==================================================
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Name W Comment
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=========================== = ==================================================
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osd-level x see ``--osd-level``
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loop x see ``--loop``
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speed x see ``--speed``
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filename currently played file (path stripped)
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path currently played file (full path)
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media-title filename or libquvi QUVIPROP_PAGETITLE
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demuxer
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stream-path filename (full path) of stream layer filename
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stream-pos x byte position in source stream
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stream-start start byte offset in source stream
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stream-end end position in bytes in source stream
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stream-length length in bytes (${stream-end} - ${stream-start})
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stream-time-pos x time position in source stream (also see time-pos)
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length length of the current file in seconds
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avsync last A/V synchronization difference
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percent-pos x position in current file (0-100)
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time-pos x position in current file in seconds
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chapter x current chapter number
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edition x current MKV edition number
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titles number of DVD titles
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chapters number of chapters
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editions number of MKV editions
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angle x current DVD angle
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metadata metadata key/value pairs
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metadata/<key> value of metadata entry <key>
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pause x pause status (bool)
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cache network cache fill state (0-100)
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pts-association-mode x see ``--pts-association-mode``
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hr-seek x see ``--hr-seek``
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volume x current volume (0-100)
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mute x current mute status (bool)
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audio-delay x see ``--audio-delay``
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audio-format audio format (string)
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audio-codec audio codec selected for decoding
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audio-bitrate audio bitrate
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samplerate audio samplerate
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channels number of audio channels
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audio x current audio track (similar to ``--aid``)
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balance x audio channel balance
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fullscreen x see ``--fullscreen``
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deinterlace x deinterlacing, if available (bool)
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colormatrix x see ``--colormatrix``
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colormatrix-input-range x see ``--colormatrix-input-range``
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colormatrix-output-range x see ``--colormatrix-output-range``
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ontop x see ``--ontop``
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border x see ``--border``
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framedrop x see ``--framedrop``
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gamma x see ``--gamma``
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brightness x see ``--brightness``
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contrast x see ``--contrast``
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saturation x see ``--saturation``
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hue x see ``--hue``
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panscan x see ``--panscan``
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video-format video format (string)
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video-codec video codec selected for decoding
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video-bitrate video bitrate
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width video width (container or decoded size)
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height video height
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fps container FPS (may contain bogus values)
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dwidth video width (after filters and aspect scaling)
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dheight video height
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aspect x video aspect
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video x current video track (similar to ``--vid``)
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program x switch TS program (write-only)
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sub x current subtitle track (similar to ``--sid``)
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sub-delay x see ``--sub-delay``
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sub-pos x see ``--sub-pos``
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sub-visibility x whether current subtitle is rendered
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sub-forced-only x see ``--sub-forced-only``
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sub-scale x subtitle font size multiplicator
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ass-use-margins x see ``--ass-use-margins``
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ass-vsfilter-aspect-compat x see ``--ass-vsfilter-aspect-compat``
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ass-style-override x see ``--ass-style-override``
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tv-brightness x
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tv-contrast x
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tv-saturation x
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tv-hue x
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=========================== = ==================================================
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