mirror of https://github.com/mpv-player/mpv
294 lines
8.2 KiB
ReStructuredText
294 lines
8.2 KiB
ReStructuredText
STATS
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=====
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This builtin script displays information and statistics for the currently
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played file. It is enabled by default if mpv was compiled with Lua support.
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It can be disabled entirely using the ``--load-stats-overlay=no`` option.
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Usage
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-----
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The following key bindings are active by default unless something else is
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already bound to them:
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==== ==============================================
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i Show stats for a fixed duration
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I Toggle stats (shown until toggled again)
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==== ==============================================
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While the stats are visible on screen the following key bindings are active,
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regardless of existing bindings. They allow you to switch between *pages* of
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stats:
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==== ==================
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1 Show usual stats
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2 Show frame timings (scroll)
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3 Input cache stats
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4 Active key bindings (scroll)
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5 Selected Tracks Info (scroll)
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0 Internal stuff (scroll)
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==== ==================
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On pages which support scroll, these key bindings are also active:
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==== ==================
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UP Scroll one line up
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DOWN Scroll one line down
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==== ==================
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Page 4 also binds ``/`` to search for input bindings by typing part of a binding
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or command.
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Configuration
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-------------
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This script can be customized through a config file ``script-opts/stats.conf``
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placed in mpv's user directory and through the ``--script-opts`` command-line
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option. The configuration syntax is described in `mp.options functions`_.
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Configurable Options
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~~~~~~~~~~~~~~~~~~~~
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``key_page_1``
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Default: 1
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``key_page_2``
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Default: 2
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``key_page_3``
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Default: 3
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``key_page_4``
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Default: 4
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``key_page_5``
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Default: 5
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``key_page_0``
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Default: 0
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Key bindings for page switching while stats are displayed.
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``key_scroll_up``
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Default: UP
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``key_scroll_down``
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Default: DOWN
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``key_scroll_search``
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Default: /
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``scroll_lines``
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Default: 1
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Scroll key bindings and number of lines to scroll on pages which support it.
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``duration``
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Default: 4
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How long the stats are shown in seconds (oneshot).
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``redraw_delay``
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Default: 1
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How long it takes to refresh the displayed stats in seconds (toggling).
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``persistent_overlay``
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Default: no
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When `no`, other scripts printing text to the screen can overwrite the
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displayed stats. When `yes`, displayed stats are persistently shown for the
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respective duration. This can result in overlapping text when multiple
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scripts decide to print text at the same time.
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``file_tag_max_length``
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Default: 128
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Only show file tags shorter than this length, in bytes.
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``file_tag_max_count``
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Default: 16
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Only show the first specified amount of file tags.
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``term_width_limit``
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Default: -1
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Sets the terminal width.
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A value of 0 means the width is infinite, -1 means it's automatic.
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``term_height_limit``
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Default: -1
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Sets the terminal height.
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A value of 0 means the height is infinite, -1 means it's automatic.
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``plot_perfdata``
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Default: yes
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Show graphs for performance data (page 2).
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``plot_vsync_ratio``
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Default: yes
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``plot_vsync_jitter``
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Default: yes
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Show graphs for vsync and jitter values (page 1). Only when toggled.
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``plot_tonemapping_lut``
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Default: no
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Enable tone-mapping LUT visualization automatically. Only when toggled.
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``flush_graph_data``
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Default: yes
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Clear data buffers used for drawing graphs when toggling.
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``font``
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Default: same as ``osd-font``
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Font name. Should support as many font weights as possible for optimal
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visual experience.
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``font_mono``
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Default: monospace
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Font name for parts where monospaced characters are necessary to align
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text. Currently, monospaced digits are sufficient.
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``font_size``
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Default: 8
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Font size used to render text.
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``font_color``
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Default: same as ``osd-color``
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Color of the text.
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``border_size``
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Default: 0.8
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Size of border drawn around the font.
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``border_color``
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Default: same as ``osd-border-color``
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Color of the text border.
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``shadow_x_offset``
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Default: 0
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The horizontal distance from the text to position the shadow at.
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``shadow_y_offset``
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Default: 0
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The vertical distance from the text to position the shadow at.
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``shadow_color``
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Default: same as ``osd-shadow-color``
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Color of the text shadow.
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``alpha``
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Default: 11
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Transparency of text when ``font_color`` is specified, of text borders when
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``border_color`` is specified, and of text shadows when ``shadow_color`` is
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specified.
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``plot_bg_border_color``
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Default: 0000FF
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Border color used for drawing graphs.
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``plot_bg_border_width``
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Default: 0.5
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Border width used for drawing graphs.
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``plot_bg_color``
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Default: 262626
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Background color used for drawing graphs.
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``plot_color``
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Default: FFFFFF
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Color used for drawing graphs.
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``vidscale``
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Default: auto
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Scale the text and graphs with the video.
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``no`` tries to keep the sizes constant.
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``auto`` scales the text and graphs with the OSD, which is scaled with the
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window or kept at a constant size, depending on the ``--osd-scale-by-window`` option.
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Note: colors are given as hexadecimal values and use ASS tag order: BBGGRR
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(blue green red).
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Different key bindings
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~~~~~~~~~~~~~~~~~~~~~~
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Additional keys can be configured in ``input.conf`` to display the stats::
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e script-binding stats/display-stats
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E script-binding stats/display-stats-toggle
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And to display a certain page directly::
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i script-binding stats/display-page-1
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e script-binding stats/display-page-2
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Active key bindings page
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~~~~~~~~~~~~~~~~~~~~~~~~
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Lists the active key bindings and the commands they're bound to, excluding the
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interactive keys of the stats script itself. See also ``--input-test`` for more
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detailed view of each binding.
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The keys are grouped automatically using a simple analysis of the command
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string, and one should not expect documentation-level grouping accuracy,
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however, it should still be reasonably useful.
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Using ``--idle --script-opts=stats-bindlist=yes`` will print the list to the
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terminal and quit immediately. By default long lines are shortened to 79 chars,
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and terminal escape sequences are enabled. A different length limit can be
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set by changing ``yes`` to a number (at least 40), and escape sequences can be
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disabled by adding ``-`` before the value, e.g. ``...=-yes`` or ``...=-120``.
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Like with ``--input-test``, the list includes bindings from ``input.conf`` and
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from user scripts. Use ``--no-config`` to list only built-in bindings.
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Internal stuff page
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~~~~~~~~~~~~~~~~~~~
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Most entries shown on this page have rather vague meaning. Likely none of this
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is useful for you. Don't attempt to use it. Forget its existence.
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Selecting this for the first time will start collecting some internal
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performance data. That means performance will be slightly lower than normal for
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the rest of the time the player is running (even if the stats page is closed).
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Note that the stats page itself uses a lot of CPU and even GPU resources, and
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may have a heavy impact on performance.
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The displayed information is accumulated over the redraw delay (shown as
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``poll-time`` field).
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This adds entries for each Lua script. If there are too many scripts running,
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parts of the list will simply be out of the screen, but it can be scrolled.
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If the underlying platform does not support pthread per thread times, the
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displayed times will be 0 or something random (I suspect that at time of this
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writing, only Linux provides the correct via pthread APIs for per thread times).
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Most entries are added lazily and only during data collection, which is why
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entries may pop up randomly after some time. It's also why the memory usage
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entries for scripts that have been inactive since the start of data collection
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are missing.
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Memory usage is approximate and does not reflect internal fragmentation.
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JS scripts memory reporting is disabled by default because collecting the data
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at the JS side has an overhead and will increase memory usage. It can be
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enabled by setting the ``--js-memory-report`` option before starting mpv.
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If entries have ``/time`` and ``/cpu`` variants, the former gives the real time
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(monotonic clock), while the latter the thread CPU time (only if the
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corresponding pthread API works and is supported).
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