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https://github.com/mpv-player/mpv
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manpage: document gl3, direct3d, portaudio, remove v4l2
The documentation is mostly taken from the help text embedded in the code of each output driver. vo_v4l2 and ao_v4l2 have been removed. Minor modifications to vo_xv, vo_directx and vo_gl.
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wm4
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@ -76,6 +76,15 @@ pulse
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string uses a local connection, "localhost" uses network transfer
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(most likely not what you want).
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portaudio
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PortAudio audio output driver. This works on all platforms, and has extensive
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MS Windows support.
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device
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Specify the subdevice to use. Giving ``help`` as device name lists all
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devices found by PortAudio. Devices can be given as numeric values,
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starting from ``1``.
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dsound (Windows only)
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DirectX DirectSound audio output driver
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@ -83,9 +92,6 @@ dsound (Windows only)
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Sets the device number to use. Playing a file with ``-v`` will show a
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list of available devices.
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v4l2 (requires Linux 2.6.22+ kernel)
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Audio output driver for V4L2 cards with hardware MPEG decoder.
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null
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Produces no audio output but maintains video playback speed. Use
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``--nosound`` for benchmarking.
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@ -24,8 +24,9 @@ in the list. Suboptions are optional and can mostly be omitted.
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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 playback. If you
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cannot use a hardware specific driver, this is probably the best option.
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Uses the XVideo extension to enable hardware accelerated playback. 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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For information about what colorkey is used and how it is drawn run
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MPlayer with ``-v`` option and look out for the lines tagged with ``[xv
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common]`` at the beginning.
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@ -151,11 +152,81 @@ vdpau (X11 only)
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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) (BETA CODE!)
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Video output driver that uses the Direct3D interface (useful for Vista).
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direct3d_shaders (Windows only)
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Video output driver that uses the Direct3D interface.
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prefer-stretchrect
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Use IDirect3DDevice9::StretchRect over other methods if possible.
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disable-stretchrect
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Never render the video using IDirect3DDevice9::StretchRect.
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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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disable-shaders
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Never use shaders when rendering video.
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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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disable-eosd
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Disable EOSD rendering for subtitles.
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(Using this flag might force the insertion of the 'ass' video filter,
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which will render the subtitles in software.)
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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, might
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crash, might cause slow downs, etc. Contact the developers if you actually need
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any of these for performance or proper operation.
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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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texture-memory=N
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Only affects operation with shaders/texturing enabled, and (E)OSD.
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Values for N:
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0
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default, will often use an additional shadow texture + copy
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1
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use D3DPOOL_MANAGED
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2
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use D3DPOOL_DEFAULT
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3
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use D3DPOOL_SYSTEMMEM, but without shadow texture
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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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exact-backbuffer
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Always resize the backbuffer to window size.
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no16bit-textures
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Don't use textures with a 16 bit color channel for YUV formats that
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use more than 8 bits per component. Instead, use D3DFMT_A8L8 textures
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and compute the values sampled from the 2 channels back into one.
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Might be slower, since the shader becomes slightly more complicated.
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Might work better, if your drivers either don't support D3DFMT_L16,
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or if either the texture unit or the shaders don't operate in at least
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16 bit precision.
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direct3d (Windows only)
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Same as ``direct3d_shaders``, but with the options ``disable-textures``
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and ``disable-shaders`` forced.
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directx (Windows only)
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Video output driver that uses the DirectX interface.
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Video output driver that uses the DirectX interface. Deprecated, always
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prefer direct3d* by default.
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noaccel
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Turns off hardware acceleration. Try this option if you have display
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@ -352,6 +423,229 @@ gl
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enabled). This option is for testing; to disable the OSD use
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``--osdlevel=0`` instead.
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backend=<sys>
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auto
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auto-select (default)
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cocoa
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Cocoa/OSX
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win
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Win32/WGL
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x11
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X11/GLX
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gl3
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OpenGL video output driver, extended version. The requires an OpenGL 3
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capable graphics driver. (Note: this is only because of developer pedantery.
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The dependency on actual OpenGL 3 features is rather low.)
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It supports extended scaling methods, dithering and color management.
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It tries to use sane defaults for good quality output.
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Note that some cheaper LCDs do dithering that gravely interferes with
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vo_gl3's dithering. Disabling dithering with ``dither-depth=-1`` helps.
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lscale=<filter>
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Set the scaling filter. Possible choices:
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bilinear
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bicubic_fast
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sharpen3
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sharpen5
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hanning
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hamming
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hermite
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quadric
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bicubic
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kaiser
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catmull_rom
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mitchell
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spline16
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spline36
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gaussian
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sinc2
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sinc3
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sinc4
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lanczos2
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lanczos3
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lanczos4
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blackman2
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blackman3
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blackman4
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bilinear
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Bilinear hardware texture filtering (fastest, mid-quality).
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lanczos2
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Lanczos scaling with radius=2. Provides a good quality and speed.
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This is the default.
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lanczos3
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Lanczos with radius=3.
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bicubic_fast
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Bicubic filter. Has a blurring effect on the image, even if no
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scaling is done.
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sharpen3
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Unsharp masking (sharpening) with radius=3 and a default strength
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of 0.5 (see ``lparam1``).
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sharpen5
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Unsharp masking (sharpening) with radius=5 and a default strength
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of 0.5 (see ``lparam1``).
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mitchell
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Mitchell-Netravali. The ``b`` and ``c`` parameters can be set with
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``lparam1`` and ``lparam2``. Both are set to 1/3 by default.
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lparam1=<value>
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Set filter parameters. Ignored if the filter is not tunable. These are
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unset by default, and use the filter specific default if applicable.
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lparam2=<value>
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See ``lparam1``.
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osdcolor=<0xAARRGGBB>
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Use the given color for the OSD.
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stereo=<value>
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Select a method for stereo display. You may have to use ``--aspect`` to
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fix the aspect value. Experimental, do not expect too much from it.
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0
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Normal 2D display
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1
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Convert side by side input to full-color red-cyan stereo.
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2
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Convert side by side input to full-color green-magenta stereo.
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3
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Convert side by side input to quadbuffered stereo. Only supported
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by very few OpenGL cards.
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srgb
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Enable gamma-correct scaling by working in linear light. This
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makes use of sRGB textures and framebuffers.
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This option forces the options 'indirect' and 'gamma'.
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NOTE: for BT.709 colorspaces, a gamma of 2.35 is assumed. For
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other YUV colorspaces, 2.2 is assumed. RGB input is always
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assumed to be in sRGB.
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pbo
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Enable use of PBOs. This is faster, but can sometimes lead to
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sparodic and temporary image corruption.
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dither-depth=<n>
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Positive non-zero values select the target bit depth. Default: 0.
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\-1
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Disable any dithering done by mplayer.
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0
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Automatic selection. If output bit depth can't be detected,
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8 bits per component are assumed.
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8
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Dither to 8 bit output.
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Note that dithering will always be disabled if the bit depth
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of the video is lower or qual to the detected dither-depth.
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If color management is enabled, input depth is assumed to be
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16 bits, because the 3D LUT output is 16 bit wide.
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Note that the depth of the connected video display device can not be
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detected. Often, LCD panels will do dithering on their own, which
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conflicts with vo_gl3's dithering, and leads to ugly output.
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debug
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Check for OpenGL errors, i.e. call glGetError(). Also request a
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debug OpenGL context (which does nothing with current graphics drivers
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as of this writing).
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swapinterval=<n>
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Interval in displayed frames between to buffer swaps.
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1 is equivalent to enable VSYNC, 0 to disable VSYNC.
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no-scale-sep
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When using a separable scale filter for luma, usually two filter
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passes are done. This is often faster. However, it forces
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conversion to RGB in an extra pass, so it can actually be slower
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if used with fast filters on small screen resolutions. Using
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this options will make rendering a single operation.
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Note that chroma scalers are always done as 1-pass filters.
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cscale=<n>
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As lscale but for chroma (2x slower with little visible effect).
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Note that with some scaling filters, upscaling is always done in
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RGB. If chroma is not subsampled, this option is ignored, and the
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luma scaler is used instead. Setting this option is often useless.
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no-fancy-downscaling
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When using convolution based filters, don't extend the filter
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size when downscaling. Trades downscaling performance for
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reduced quality.
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no-npot
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Force use of power-of-2 texture sizes. For debugging only.
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Borders will be distorted due to filtering.
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glfinish
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Call glFinish() before swapping buffers
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backend=<sys>
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auto
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auto-select (default)
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cocoa
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Cocoa/OSX
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win
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Win32/WGL
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x11
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X11/GLX
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indirect
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Do YUV conversion and scaling as separate passes. This will
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first render the video into a video-sized RGB texture, and
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draw the result on screen. The luma scaler is used to scale
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the RGB image when rendering to screen. The chroma scaler
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is used only on YUV conversion, and only if the video uses
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chroma-subsampling.
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This mechanism is disabled on RGB input.
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fbo-format=<fmt>
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Selects the internal format of any FBO textures used.
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fmt can be one of: rgb, rgba, rgb8, rgb16, rgb16f, rgb32f
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Default: rgb16.
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gamma
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Always enable gamma control. (Disables delayed enabling.)
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force-gl2
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Create a legacy GL context. This will randomly malfunction
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if the proper extensions are not supported.
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icc-profile=<file>
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Load an ICC profile and use it to transform linear RGB to
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screen output. Needs LittleCMS2 support compiled in.
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icc-cache=<file>
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Store and load the 3D LUT created from the ICC profile in
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this file. This can be used to speed up loading, since
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LittleCMS2 can take a while to create the 3D LUT.
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Note that this file contains an uncompressed LUT. Its size depends on
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the ``3dlut-size``, can be become very big.
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icc-intent=<value>
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0
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perceptual
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1
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relative colorimetric
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2
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saturation
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3
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absolute colorimetric (default)
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3dlut-size=<r>x<g>x<b>
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Size of the 3D LUT generated from the ICC profile in each
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dimension. Default is 128x256x64.
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Sizes must be a power of two, and 256 at most.
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null
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Produces no video output. Useful for benchmarking.
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@ -380,16 +674,6 @@ directfb
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dfbopts=<list>
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Specify a parameter list for DirectFB.
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v4l2 (requires Linux 2.6.22+ kernel)
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Video output driver for V4L2 compliant cards with built-in hardware MPEG
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decoder. See also the lavc video filter.
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<device>
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Explicitly choose the MPEG decoder device name to use (default:
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``/dev/video16``).
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<output>
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Explicitly choose the TV-out output to be used for the video signal.
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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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