mirror of
https://github.com/mpv-player/mpv
synced 2024-12-27 01:22:30 +00:00
a7230dfed0
Raise swscale and zimg default parameters. This restores screenshot quality settings (maybe) unset in the commit before. Also expose some more libswscale and zimg options. Since these options are also used for VOs like x11 and drm, this will make x11/drm/etc. much slower. For compensation, provide a profile that sets the old option values: sw-fast. I'm also enabling zimg here, just as an experiment. The core problem is that we have a single set of command line options which control the settings used for most swscale/zimg uses. This was done in the previous commit. It cannot differentiate between the VOs, which need to be realtime and may accept/require lower quality options, and things like screenshots or vo_image, which can be slower, but should not sacrifice quality by default. Should this have two sets of options or something similar to do the right thing depending on the code which calls libswscale? Maybe. Or should I just ignore the problem, make it someone else's problem (users who want to use software conversion VOs), provide a sub-optimal solution, and call it a day? Definitely, sounds good, pushing to master, goodbye.
599 lines
26 KiB
ReStructuredText
599 lines
26 KiB
ReStructuredText
VIDEO OUTPUT DRIVERS
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====================
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Video output drivers are interfaces to different video output facilities. The
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syntax is:
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``--vo=<driver1,driver2,...[,]>``
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Specify a priority list of video output drivers to be used.
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If the list has a trailing ``,``, mpv will fall back on drivers not contained
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in the list.
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.. note::
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See ``--vo=help`` for a list of compiled-in video output drivers.
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The recommended output driver is ``--vo=gpu``, which is the default. All
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other drivers are for compatibility or special purposes. If the default
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does not work, it will fallback to other drivers (in the same order as
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listed by ``--vo=help``).
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Available video output drivers are:
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``xv`` (X11 only)
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Uses the XVideo extension to enable hardware-accelerated display. This is
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the most compatible VO on X, but may be low-quality, and has issues with
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OSD and subtitle display.
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.. note:: This driver is for compatibility with old systems.
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The following global options are supported by this video output:
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``--xv-adaptor=<number>``
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Select a specific XVideo adapter (check xvinfo results).
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``--xv-port=<number>``
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Select a specific XVideo port.
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``--xv-ck=<cur|use|set>``
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Select the source from which the color key is taken (default: cur).
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cur
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The default takes the color key currently set in Xv.
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use
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Use but do not set the color key from mpv (use the ``--colorkey``
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option to change it).
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set
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Same as use but also sets the supplied color key.
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``--xv-ck-method=<none|man|bg|auto>``
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Sets the color key drawing method (default: man).
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none
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Disables color-keying.
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man
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Draw the color key manually (reduces flicker in some cases).
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bg
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Set the color key as window background.
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auto
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Let Xv draw the color key.
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``--xv-colorkey=<number>``
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Changes the color key to an RGB value of your choice. ``0x000000`` is
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black and ``0xffffff`` is white.
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``--xv-buffers=<number>``
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Number of image buffers to use for the internal ringbuffer (default: 2).
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Increasing this will use more memory, but might help with the X server
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not responding quickly enough if video FPS is close to or higher than
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the display refresh rate.
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``x11`` (X11 only)
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Shared memory video output driver without hardware acceleration that works
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whenever X11 is present.
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Since mpv 0.30.0, you may need to use ``--profile=sw-fast`` to get decent
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performance.
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.. note:: This is a fallback only, and should not be normally used.
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``vdpau`` (X11 only)
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Uses the VDPAU interface to display and optionally also decode video.
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Hardware decoding is used with ``--hwdec=vdpau``.
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.. note::
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Earlier versions of mpv (and MPlayer, mplayer2) provided sub-options
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to tune vdpau post-processing, like ``deint``, ``sharpen``, ``denoise``,
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``chroma-deint``, ``pullup``, ``hqscaling``. These sub-options are
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deprecated, and you should use the ``vdpaupp`` video filter instead.
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The following global options are supported by this video output:
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``--vo-vdpau-sharpen=<-1-1>``
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(Deprecated. See note about ``vdpaupp``.)
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For positive values, apply a sharpening algorithm to the video, for
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negative values a blurring algorithm (default: 0).
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``--vo-vdpau-denoise=<0-1>``
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(Deprecated. See note about ``vdpaupp``.)
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Apply a noise reduction algorithm to the video (default: 0; no noise
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reduction).
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``--vo-vdpau-deint=<-4-4>``
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(Deprecated. See note about ``vdpaupp``.)
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Select deinterlacing mode (default: 0). In older versions (as well as
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MPlayer/mplayer2) you could use this option to enable deinterlacing.
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This doesn't work anymore, and deinterlacing is enabled with either
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the ``d`` key (by default mapped to the command ``cycle deinterlace``),
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or the ``--deinterlace`` option. Also, to select the default deint mode,
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you should use something like ``--vf-defaults=vdpaupp:deint-mode=temporal``
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instead of this sub-option.
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0
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Pick the ``vdpaupp`` video filter default, which corresponds to 3.
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1
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Show only first field.
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2
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Bob deinterlacing.
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3
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Motion-adaptive temporal deinterlacing. May lead to A/V desync
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with slow video hardware and/or high resolution.
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4
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Motion-adaptive temporal deinterlacing with edge-guided spatial
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interpolation. Needs fast video hardware.
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``--vo-vdpau-chroma-deint``
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(Deprecated. See note about ``vdpaupp``.)
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Makes temporal deinterlacers operate both on luma and chroma (default).
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Use no-chroma-deint to solely use luma and speed up advanced
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deinterlacing. Useful with slow video memory.
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``--vo-vdpau-pullup``
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(Deprecated. See note about ``vdpaupp``.)
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Try to apply inverse telecine, needs motion adaptive temporal
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deinterlacing.
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``--vo-vdpau-hqscaling=<0-9>``
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(Deprecated. See note about ``vdpaupp``.)
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0
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Use default VDPAU scaling (default).
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1-9
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Apply high quality VDPAU scaling (needs capable hardware).
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``--vo-vdpau-fps=<number>``
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Override autodetected display refresh rate value (the value is needed
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for framedrop to allow video playback rates higher than display
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refresh rate, and for vsync-aware frame timing adjustments). Default 0
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means use autodetected value. A positive value is interpreted as a
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refresh rate in Hz and overrides the autodetected value. A negative
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value disables all timing adjustment and framedrop logic.
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``--vo-vdpau-composite-detect``
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NVIDIA's current VDPAU implementation behaves somewhat differently
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under a compositing window manager and does not give accurate frame
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timing information. With this option enabled, the player tries to
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detect whether a compositing window manager is active. If one is
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detected, the player disables timing adjustments as if the user had
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specified ``fps=-1`` (as they would be based on incorrect input). This
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means timing is somewhat less accurate than without compositing, but
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with the composited mode behavior of the NVIDIA driver, there is no
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hard playback speed limit even without the disabled logic. Enabled by
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default, use ``--vo-vdpau-composite-detect=no`` to disable.
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``--vo-vdpau-queuetime-windowed=<number>`` and ``queuetime-fs=<number>``
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Use VDPAU's presentation queue functionality to queue future video
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frame changes at most this many milliseconds in advance (default: 50).
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See below for additional information.
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``--vo-vdpau-output-surfaces=<2-15>``
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Allocate this many output surfaces to display video frames (default:
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3). See below for additional information.
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``--vo-vdpau-colorkey=<#RRGGBB|#AARRGGBB>``
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Set the VDPAU presentation queue background color, which in practice
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is the colorkey used if VDPAU operates in overlay mode (default:
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``#020507``, some shade of black). If the alpha component of this value
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is 0, the default VDPAU colorkey will be used instead (which is usually
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green).
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``--vo-vdpau-force-yuv``
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Never accept RGBA input. This means mpv will insert a filter to convert
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to a YUV format before the VO. Sometimes useful to force availability
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of certain YUV-only features, like video equalizer or deinterlacing.
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Using the VDPAU frame queuing functionality controlled by the queuetime
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options makes mpv's frame flip timing less sensitive to system CPU load and
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allows mpv to start decoding the next frame(s) slightly earlier, which can
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reduce jitter caused by individual slow-to-decode frames. However, the
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NVIDIA graphics drivers can make other window behavior such as window moves
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choppy if VDPAU is using the blit queue (mainly happens if you have the
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composite extension enabled) and this feature is active. If this happens on
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your system and it bothers you then you can set the queuetime value to 0 to
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disable this feature. The settings to use in windowed and fullscreen mode
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are separate because there should be no reason to disable this for
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fullscreen mode (as the driver issue should not affect the video itself).
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You can queue more frames ahead by increasing the queuetime values and the
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``output_surfaces`` count (to ensure enough surfaces to buffer video for a
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certain time ahead you need at least as many surfaces as the video has
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frames during that time, plus two). This could help make video smoother in
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some cases. The main downsides are increased video RAM requirements for
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the surfaces and laggier display response to user commands (display
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changes only become visible some time after they're queued). The graphics
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driver implementation may also have limits on the length of maximum
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queuing time or number of queued surfaces that work well or at all.
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``direct3d`` (Windows only)
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Video output driver that uses the Direct3D interface.
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.. note:: This driver is for compatibility with systems that don't provide
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proper OpenGL drivers, and where ANGLE does not perform well.
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.. note:: Before to 0.21.0, ``direct3d_shaders`` and ``direct3d`` were
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different, with ``direct3d`` not using shader by default. Now
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both use shaders by default, and ``direct3d_shaders`` is a
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deprecated alias. Use the ``--vo-direct3d-prefer-stretchrect``
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or the ``--vo-direct3d-disable-shaders`` options to get the old
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behavior of ``direct3d``.
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The following global options are supported by this video output:
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``--vo-direct3d-prefer-stretchrect``
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Use ``IDirect3DDevice9::StretchRect`` over other methods if possible.
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``--vo-direct3d-disable-stretchrect``
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Never render the video using ``IDirect3DDevice9::StretchRect``.
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``--vo-direct3d-disable-textures``
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Never render the video using D3D texture rendering. Rendering with
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textures + shader will still be allowed. Add ``disable-shaders`` to
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completely disable video rendering with textures.
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``--vo-direct3d-disable-shaders``
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Never use shaders when rendering video.
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``--vo-direct3d-only-8bit``
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Never render YUV video with more than 8 bits per component.
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Using this flag will force software conversion to 8-bit.
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``--vo-direct3d-disable-texture-align``
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Normally texture sizes are always aligned to 16. With this option
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enabled, the video texture will always have exactly the same size as
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the video itself.
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Debug options. These might be incorrect, might be removed in the future,
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might crash, might cause slow downs, etc. Contact the developers if you
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actually need any of these for performance or proper operation.
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``--vo-direct3d-force-power-of-2``
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Always force textures to power of 2, even if the device reports
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non-power-of-2 texture sizes as supported.
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``--vo-direct3d-texture-memory=<mode>``
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Only affects operation with shaders/texturing enabled, and (E)OSD.
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Possible values:
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``default`` (default)
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Use ``D3DPOOL_DEFAULT``, with a ``D3DPOOL_SYSTEMMEM`` texture for
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locking. If the driver supports ``D3DDEVCAPS_TEXTURESYSTEMMEMORY``,
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``D3DPOOL_SYSTEMMEM`` is used directly.
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``default-pool``
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Use ``D3DPOOL_DEFAULT``. (Like ``default``, but never use a
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shadow-texture.)
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``default-pool-shadow``
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Use ``D3DPOOL_DEFAULT``, with a ``D3DPOOL_SYSTEMMEM`` texture for
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locking. (Like ``default``, but always force the shadow-texture.)
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``managed``
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Use ``D3DPOOL_MANAGED``.
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``scratch``
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Use ``D3DPOOL_SCRATCH``, with a ``D3DPOOL_SYSTEMMEM`` texture for
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locking.
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``--vo-direct3d-swap-discard``
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Use ``D3DSWAPEFFECT_DISCARD``, which might be faster.
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Might be slower too, as it must(?) clear every frame.
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``--vo-direct3d-exact-backbuffer``
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Always resize the backbuffer to window size.
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``gpu``
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General purpose, customizable, GPU-accelerated video output driver. It
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supports extended scaling methods, dithering, color management, custom
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shaders, HDR, and more.
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See `GPU renderer options`_ for options specific to this VO.
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By default, it tries to use fast and fail-safe settings. Use the
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``gpu-hq`` profile to use this driver with defaults set to high quality
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rendering. The profile can be applied with ``--profile=gpu-hq`` and its
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contents can be viewed with ``--show-profile=gpu-hq``.
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This VO abstracts over several possible graphics APIs and windowing
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contexts, which can be influenced using the ``--gpu-api`` and
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``--gpu-context`` options.
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Hardware decoding over OpenGL-interop is supported to some degree. Note
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that in this mode, some corner case might not be gracefully handled, and
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color space conversion and chroma upsampling is generally in the hand of
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the hardware decoder APIs.
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``gpu`` makes use of FBOs by default. Sometimes you can achieve better
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quality or performance by changing the ``--gpu-fbo-format`` option to
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``rgb16f``, ``rgb32f`` or ``rgb``. Known problems include Mesa/Intel not
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accepting ``rgb16``, Mesa sometimes not being compiled with float texture
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support, and some OS X setups being very slow with ``rgb16`` but fast
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with ``rgb32f``. If you have problems, you can also try enabling the
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``--gpu-dumb-mode=yes`` option.
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``sdl``
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SDL 2.0+ Render video output driver, depending on system with or without
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hardware acceleration. Should work on all platforms supported by SDL 2.0.
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For tuning, refer to your copy of the file ``SDL_hints.h``.
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.. note:: This driver is for compatibility with systems that don't provide
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proper graphics drivers.
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The following global options are supported by this video output:
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``--sdl-sw``
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Continue even if a software renderer is detected.
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``--sdl-switch-mode``
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Instruct SDL to switch the monitor video mode when going fullscreen.
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``vaapi``
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Intel VA API video output driver with support for hardware decoding. Note
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that there is absolutely no reason to use this, other than compatibility.
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This is low quality, and has issues with OSD.
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.. note:: This driver is for compatibility with crappy systems. You can
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use vaapi hardware decoding with ``--vo=gpu`` too.
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The following global options are supported by this video output:
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``--vo-vaapi-scaling=<algorithm>``
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default
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Driver default (mpv default as well).
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fast
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Fast, but low quality.
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hq
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Unspecified driver dependent high-quality scaling, slow.
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nla
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``non-linear anamorphic scaling``
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``--vo-vaapi-deint-mode=<mode>``
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Select deinterlacing algorithm. Note that by default deinterlacing is
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initially always off, and needs to be enabled with the ``d`` key
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(default key binding for ``cycle deinterlace``).
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This option doesn't apply if libva supports video post processing (vpp).
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In this case, the default for ``deint-mode`` is ``no``, and enabling
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deinterlacing via user interaction using the methods mentioned above
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actually inserts the ``vavpp`` video filter. If vpp is not actually
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supported with the libva backend in use, you can use this option to
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forcibly enable VO based deinterlacing.
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no
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Don't allow deinterlacing (default for newer libva).
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first-field
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Show only first field.
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bob
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bob deinterlacing (default for older libva).
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``--vo-vaapi-scaled-osd=<yes|no>``
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If enabled, then the OSD is rendered at video resolution and scaled to
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display resolution. By default, this is disabled, and the OSD is
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rendered at display resolution if the driver supports it.
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``null``
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Produces no video output. Useful for benchmarking.
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Usually, it's better to disable video with ``--no-video`` instead.
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The following global options are supported by this video output:
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``--vo-null-fps=<value>``
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Simulate display FPS. This artificially limits how many frames the
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VO accepts per second.
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``caca``
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Color ASCII art video output driver that works on a text console.
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.. note:: This driver is a joke.
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``tct``
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Color Unicode art video output driver that works on a text console.
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Depends on support of true color by modern terminals to display the images
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at full color range. On Windows it requires an ansi terminal such as mintty.
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Since mpv 0.30.0, you may need to use ``--profile=sw-fast`` to get decent
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performance.
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``--vo-tct-algo=<algo>``
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Select how to write the pixels to the terminal.
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half-blocks
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Uses unicode LOWER HALF BLOCK character to achieve higher vertical
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resolution. (Default.)
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plain
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Uses spaces. Causes vertical resolution to drop twofolds, but in
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theory works in more places.
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``--vo-tct-width=<width>`` ``--vo-tct-height=<height>``
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Assume the terminal has the specified character width and/or height.
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These default to 80x25 if the terminal size cannot be determined.
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``--vo-tct-256=<yes|no>`` (default: no)
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Use 256 colors - for terminals which don't support true color.
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``image``
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Output each frame into an image file in the current directory. Each file
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takes the frame number padded with leading zeros as name.
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The following global options are supported by this video output:
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``--vo-image-format=<format>``
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Select the image file format.
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jpg
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JPEG files, extension .jpg. (Default.)
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jpeg
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JPEG files, extension .jpeg.
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png
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PNG files.
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webp
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WebP files.
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``--vo-image-png-compression=<0-9>``
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PNG compression factor (speed vs. file size tradeoff) (default: 7)
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``--vo-image-png-filter=<0-5>``
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Filter applied prior to PNG compression (0 = none; 1 = sub; 2 = up;
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3 = average; 4 = Paeth; 5 = mixed) (default: 5)
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``--vo-image-jpeg-quality=<0-100>``
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JPEG quality factor (default: 90)
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``--vo-image-jpeg-optimize=<0-100>``
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JPEG optimization factor (default: 100)
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``--vo-image-webp-lossless=<yes|no>``
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Enable writing lossless WebP files (default: no)
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``--vo-image-webp-quality=<0-100>``
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WebP quality (default: 75)
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``--vo-image-webp-compression=<0-6>``
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WebP compression factor (default: 4)
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``--vo-image-outdir=<dirname>``
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Specify the directory to save the image files to (default: ``./``).
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``libmpv``
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For use with libmpv direct embedding. As a special case, on OS X it
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is used like a normal VO within mpv (cocoa-cb). Otherwise useless in any
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other contexts.
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(See ``<mpv/render.h>``.)
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This also supports many of the options the ``gpu`` VO has, depending on the
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backend.
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``rpi`` (Raspberry Pi)
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Native video output on the Raspberry Pi using the MMAL API.
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This is deprecated. Use ``--vo=gpu`` instead, which is the default and
|
|
provides the same functionality. The ``rpi`` VO will be removed in
|
|
mpv 0.23.0. Its functionality was folded into --vo=gpu, which now uses
|
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RPI hardware decoding by treating it as a hardware overlay (without applying
|
|
GL filtering). Also to be changed in 0.23.0: the --fs flag will be reset to
|
|
"no" by default (like on the other platforms).
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The following deprecated global options are supported by this video output:
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``--rpi-display=<number>``
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Select the display number on which the video overlay should be shown
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(default: 0).
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``--rpi-layer=<number>``
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Select the dispmanx layer on which the video overlay should be shown
|
|
(default: -10). Note that mpv will also use the 2 layers above the
|
|
selected layer, to handle the window background and OSD. Actual video
|
|
rendering will happen on the layer above the selected layer.
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``--rpi-background=<yes|no>``
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Whether to render a black background behind the video (default: no).
|
|
Normally it's better to kill the console framebuffer instead, which
|
|
gives better performance.
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|
|
``--rpi-osd=<yes|no>``
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Enabled by default. If disabled with ``no``, no OSD layer is created.
|
|
This also means there will be no subtitles rendered.
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|
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``drm`` (Direct Rendering Manager)
|
|
Video output driver using Kernel Mode Setting / Direct Rendering Manager.
|
|
Should be used when one doesn't want to install full-blown graphical
|
|
environment (e.g. no X). Does not support hardware acceleration (if you
|
|
need this, check the ``drm`` backend for ``gpu`` VO).
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|
|
|
Since mpv 0.30.0, you may need to use ``--profile=sw-fast`` to get decent
|
|
performance.
|
|
|
|
The following global options are supported by this video output:
|
|
|
|
``--drm-connector=[<gpu_number>.]<name>``
|
|
Select the connector to use (usually this is a monitor.) If ``<name>``
|
|
is empty or ``auto``, mpv renders the output on the first available
|
|
connector. Use ``--drm-connector=help`` to get a list of available
|
|
connectors. When using multiple graphic cards, use the ``<gpu_number>``
|
|
argument to disambiguate.
|
|
(default: empty)
|
|
|
|
``--drm-mode=<preferred|highest|N|WxH[@R]>``
|
|
Mode to use (resolution and frame rate).
|
|
Possible values:
|
|
|
|
:preferred: Use the preferred mode for the screen on the selected
|
|
connector. (default)
|
|
:highest: Use the mode with the highest resolution available on the
|
|
selected connector.
|
|
:N: Select mode by index.
|
|
:WxH[@R]: Specify mode by width, height, and optionally refresh rate.
|
|
In case several modes match, selects the mode that comes
|
|
first in the EDID list of modes.
|
|
|
|
Use ``--drm-mode=help`` to get a list of available modes for all active
|
|
connectors.
|
|
|
|
``--drm-atomic=<no|auto>``
|
|
Toggle use of atomic modesetting. Mostly useful for debugging.
|
|
|
|
:no: Use legacy modesetting.
|
|
:auto: Use atomic modesetting, falling back to legacy modesetting if
|
|
not available. (default)
|
|
|
|
Note: Only affects ``gpu-context=drm``. ``vo=drm`` supports legacy
|
|
modesetting only.
|
|
|
|
``--drm-draw-plane=<primary|overlay|N>``
|
|
Select the DRM plane to which video and OSD is drawn to, under normal
|
|
circumstances. The plane can be specified as ``primary``, which will
|
|
pick the first applicable primary plane; ``overlay``, which will pick
|
|
the first applicable overlay plane; or by index. The index is zero
|
|
based, and related to the CRTC.
|
|
(default: primary)
|
|
|
|
When using this option with the drmprime-drm hwdec interop, only the OSD
|
|
is rendered to this plane.
|
|
|
|
``--drm-drmprime-video-plane=<primary|overlay|N>``
|
|
Select the DRM plane to use for video with the drmprime-drm hwdec
|
|
interop (used by e.g. the rkmpp hwdec on RockChip SoCs, and v4l2 hwdec:s
|
|
on various other SoC:s). The plane is unused otherwise. This option
|
|
accepts the same values as ``--drm-draw-plane``. (default: overlay)
|
|
|
|
To be able to successfully play 4K video on various SoCs you might need
|
|
to set ``--drm-draw-plane=overlay --drm-drmprime-video-plane=primary``
|
|
and setting ``--drm-draw-surface-size=1920x1080``, to render the OSD at a
|
|
lower resolution (the video when handled by the hwdec will be on the
|
|
drmprime-video plane and at full 4K resolution)
|
|
|
|
``--drm-format=<xrgb8888|xrgb2101010>``
|
|
Select the DRM format to use (default: xrgb8888). This allows you to
|
|
choose the bit depth of the DRM mode. xrgb8888 is your usual 24 bit per
|
|
pixel/8 bits per channel packed RGB format with 8 bits of padding.
|
|
xrgb2101010 is a packed 30 bits per pixel/10 bits per channel packed RGB
|
|
format with 2 bits of padding.
|
|
|
|
There are cases when xrgb2101010 will work with the ``drm`` VO, but not
|
|
with the ``drm`` backend for the ``gpu`` VO. This is because with the
|
|
``gpu`` VO, in addition to requiring support in your DRM driver,
|
|
requires support for xrgb2101010 in your EGL driver
|
|
|
|
``--drm-draw-surface-size=<[WxH]>``
|
|
Sets the size of the surface used on the draw plane. The surface will
|
|
then be upscaled to the current screen resolution. This option can be
|
|
useful when used together with the drmprime-drm hwdec interop at high
|
|
resolutions, as it allows scaling the draw plane (which in this case
|
|
only handles the OSD) down to a size the GPU can handle.
|
|
|
|
When used without the drmprime-drm hwdec interop this option will just
|
|
cause the video to get rendered at a different resolution and then
|
|
scaled to screen size.
|
|
|
|
Note: this option is only available with DRM atomic support.
|
|
(default: display resolution)
|
|
|
|
``mediacodec_embed`` (Android)
|
|
Renders ``IMGFMT_MEDIACODEC`` frames directly to an ``android.view.Surface``.
|
|
Requires ``--hwdec=mediacodec`` for hardware decoding, along with
|
|
``--vo=mediacodec_embed`` and ``--wid=(intptr_t)(*android.view.Surface)``.
|
|
|
|
Since this video output driver uses native decoding and rendering routines,
|
|
many of mpv's features (subtitle rendering, OSD/OSC, video filters, etc)
|
|
are not available with this driver.
|
|
|
|
To use hardware decoding with ``--vo=gpu`` instead, use
|
|
``--hwdec=mediacodec-copy`` along with ``--gpu-context=android``.
|
|
|
|
``wlshm`` (Wayland only)
|
|
Shared memory video output driver without hardware acceleration that works
|
|
whenever Wayland is present.
|
|
|
|
Since mpv 0.30.0, you may need to use ``--profile=sw-fast`` to get decent
|
|
performance.
|
|
|
|
.. note:: This is a fallback only, and should not be normally used.
|