mirror of https://github.com/mpv-player/mpv
624 lines
27 KiB
ReStructuredText
624 lines
27 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-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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The following global options are supported by this video output:
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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 ``--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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By default depends on support of true color by modern terminals to display
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the images at full color range, but 256-colors outout is also supported (see
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below). 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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Note: the TCT image output is not synchronized with other terminal output
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from mpv, which can lead to broken images. The options ``--no-terminal`` or
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``--really-quiet`` can help with that.
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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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``sixel``
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Sixel graphics video output driver based on libsixel that works on a
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console that has sixel graphics enabled such as ``xterm`` or ``mlterm``.
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Additionally some terminals have limitation on the dimensions, so may
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not display images bigger than 1000x1000 for example. Make sure that
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``img2sixel`` can display images of the corresponding resolution.
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You may need to use ``--profile=sw-fast`` to get decent performance.
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Note: the Sixel image output is not synchronized with other terminal output
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from mpv, which can lead to broken images. The option ``--really-quiet``
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can help with that, and is recommended.
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``--vo-sixel-diffusion=<algo>``
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Selects the diffusion algorithm for dithering used by libsixel.
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Can be one of the below list as per libsixel's documentation.
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auto
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Choose diffuse type automatically
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none
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Don't diffuse
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atkinson
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Diffuse with Bill Atkinson's method. (Default)
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fs
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Diffuse with Floyd-Steinberg method
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jajuni
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Diffuse with Jarvis, Judice & Ninke method
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stucki
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Diffuse with Stucki's method
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burkes
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Diffuse with Burkes' method
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arithmetic
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Positionally stable arithmetic dither
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xor
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Positionally stable arithmetic xor based dither
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``--vo-sixel-width=<width>`` ``--vo-sixel-height=<height>``
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The output video resolution will be set to width and height
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These default to 320x240 if not set. The terminal window must
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be bigger than this resolution to have smooth playback.
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Additionally the last row will be a blank line and can't be
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used to display pixel data.
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``--vo-sixel-fixedpalette=<0|1>`` (default: 0)
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Use libsixel's built-in static palette using the XTERM256 profile
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for dither. Fixed palette uses 256 colors for dithering.
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``--vo-sixel-reqcolors=<colors>`` (default: 256)
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Setup libsixel to use required number of colors for dynamic palette.
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This value depends on the console as well. Xterm supports 256.
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Can set this to a lower value for faster performance.
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This option has no effect if fixed palette is used.
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``--vo-sixel-color-threshold=<threshold>`` (default: 0)
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This threshold value is used in dynamic palette mode to
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recompute the palette based on the scene changes.
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``--vo-sixel-offset-top=<top>`` (default: 1)
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The output video playback will start from the specified row number.
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If this is greater than 1, then those many rows will be skipped.
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This option can be used to shift video below in the terminal.
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If it is greater than number of rows in terminal, then it is ignored.
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``--vo-sixel-offset-left=<left>`` (default: 1)
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The output video playback will start from the specified column number.
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If this is greater than 1, then those many columns will be skipped.
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This option can be used to shift video to the right in the terminal.
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If it is greater than number of columns in terminal, then it is ignored.
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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
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provides the same functionality. The ``rpi`` VO will be removed in
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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
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GL filtering). Also to be changed in 0.23.0: the --fs flag will be reset to
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"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
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(default: -10). Note that mpv will also use the 2 layers above the
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selected layer, to handle the window background and OSD. Actual video
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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).
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Normally it's better to kill the console framebuffer instead, which
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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.
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This also means there will be no subtitles rendered.
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``drm`` (Direct Rendering Manager)
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Video output driver using Kernel Mode Setting / Direct Rendering Manager.
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Should be used when one doesn't want to install full-blown graphical
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environment (e.g. no X). Does not support hardware acceleration (if you
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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
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performance.
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The following global options are supported by this video output:
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``--drm-connector=[<gpu_number>.]<name>``
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Select the connector to use (usually this is a monitor.) If ``<name>``
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is empty or ``auto``, mpv renders the output on the first available
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connector. Use ``--drm-connector=help`` to get a list of available
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connectors. When using multiple graphic cards, use the ``<gpu_number>``
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argument to disambiguate.
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(default: empty)
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``--drm-mode=<preferred|highest|N|WxH[@R]>``
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Mode to use (resolution and frame rate).
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Possible values:
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:preferred: Use the preferred mode for the screen on the selected
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connector. (default)
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:highest: Use the mode with the highest resolution available on the
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selected connector.
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:N: Select mode by index.
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:WxH[@R]: Specify mode by width, height, and optionally refresh rate.
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In case several modes match, selects the mode that comes
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first in the EDID list of modes.
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Use ``--drm-mode=help`` to get a list of available modes for all active
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connectors.
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``--drm-atomic=<no|auto>``
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Toggle use of atomic modesetting. Mostly useful for debugging.
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:no: Use legacy modesetting.
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:auto: Use atomic modesetting, falling back to legacy modesetting if
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not available. (default)
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Note: Only affects ``gpu-context=drm``. ``vo=drm`` supports legacy
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modesetting only.
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``--drm-draw-plane=<primary|overlay|N>``
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Select the DRM plane to which video and OSD is drawn to, under normal
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circumstances. The plane can be specified as ``primary``, which will
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pick the first applicable primary plane; ``overlay``, which will pick
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the first applicable overlay plane; or by index. The index is zero
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based, and related to the CRTC.
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(default: primary)
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When using this option with the drmprime-drm hwdec interop, only the OSD
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is rendered to this plane.
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``--drm-drmprime-video-plane=<primary|overlay|N>``
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Select the DRM plane to use for video with the drmprime-drm hwdec
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interop (used by e.g. the rkmpp hwdec on RockChip SoCs, and v4l2 hwdec:s
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on various other SoC:s). The plane is unused otherwise. This option
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accepts the same values as ``--drm-draw-plane``. (default: overlay)
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To be able to successfully play 4K video on various SoCs you might need
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to set ``--drm-draw-plane=overlay --drm-drmprime-video-plane=primary``
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and setting ``--drm-draw-surface-size=1920x1080``, to render the OSD at a
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lower resolution (the video when handled by the hwdec will be on the
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drmprime-video plane and at full 4K resolution)
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``--drm-format=<xrgb8888|xrgb2101010>``
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Select the DRM format to use (default: xrgb8888). This allows you to
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choose the bit depth of the DRM mode. xrgb8888 is your usual 24 bit per
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pixel/8 bits per channel packed RGB format with 8 bits of padding.
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xrgb2101010 is a packed 30 bits per pixel/10 bits per channel packed RGB
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format with 2 bits of padding.
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There are cases when xrgb2101010 will work with the ``drm`` VO, but not
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with the ``drm`` backend for the ``gpu`` VO. This is because with the
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``gpu`` VO, in addition to requiring support in your DRM driver,
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requires support for xrgb2101010 in your EGL driver
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``--drm-draw-surface-size=<[WxH]>``
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Sets the size of the surface used on the draw plane. The surface will
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then be upscaled to the current screen resolution. This option can be
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useful when used together with the drmprime-drm hwdec interop at high
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resolutions, as it allows scaling the draw plane (which in this case
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only handles the OSD) down to a size the GPU can handle.
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When used without the drmprime-drm hwdec interop this option will just
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cause the video to get rendered at a different resolution and then
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scaled to screen size.
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Note: this option is only available with DRM atomic support.
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(default: display resolution)
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``mediacodec_embed`` (Android)
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Renders ``IMGFMT_MEDIACODEC`` frames directly to an ``android.view.Surface``.
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Requires ``--hwdec=mediacodec`` for hardware decoding, along with
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``--vo=mediacodec_embed`` and ``--wid=(intptr_t)(*android.view.Surface)``.
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Since this video output driver uses native decoding and rendering routines,
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many of mpv's features (subtitle rendering, OSD/OSC, video filters, etc)
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are not available with this driver.
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To use hardware decoding with ``--vo=gpu`` instead, use
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``--hwdec=mediacodec-copy`` along with ``--gpu-context=android``.
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``wlshm`` (Wayland only)
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Shared memory video output driver without hardware acceleration that works
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whenever Wayland is present.
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Since mpv 0.30.0, you may need to use ``--profile=sw-fast`` to get decent
|
|
performance.
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.. note:: This is a fallback only, and should not be normally used.
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