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diff --git a/DOCS/man/en/vo.rst b/DOCS/man/en/vo.rst index 3b2c280724..3f648b55fe 100644 --- a/DOCS/man/en/vo.rst +++ b/DOCS/man/en/vo.rst @@ -1,39 +1,39 @@ -.. _video_outputs: - VIDEO OUTPUT DRIVERS ==================== Video output drivers are interfaces to different video output facilities. The syntax is: ---vo=<driver1[:suboption1[=value]:...],driver2,...[,]> +``--vo=<driver1[:suboption1[=value]:...],driver2,...[,]>`` Specify a priority list of video output drivers to be used. -If the list has a trailing ',' mpv will fall back on drivers not contained +If the list has a trailing ',', mpv will fall back on drivers not contained in the list. Suboptions are optional and can mostly be omitted. -*NOTE*: See ``--vo=help`` for a list of compiled-in video output drivers. +.. note:: + + See ``--vo=help`` for a list of compiled-in video output drivers. -*EXAMPLE*: +.. admonition:: Example ``--vo=opengl,xv,`` - Try the OpenGL driver, then the Xv driver, then others. + Try the ``opengl`` driver, then the ``xv`` driver, then others. Available video output drivers are: -xv (X11 only) - Uses the XVideo extension to enable hardware accelerated playback. This is - the most compatible VO on X, but may be low quality, and has issues with +``xv`` (X11 only) + Uses the XVideo extension to enable hardware-accelerated playback. This is + the most compatible VO on X, but may be low-quality, and has issues with OSD and subtitle display. - For information about what colorkey is used and how it is drawn run - mpv with ``-v`` option and look out for the lines tagged with ``[xv + For information about what colorkey is used and how it is drawn, run + mpv with the ``-v`` option and look out for the lines tagged with ``[xv common]`` at the beginning. - adaptor=<number> + ``adaptor=<number>`` Select a specific XVideo adaptor (check xvinfo results). - port=<number> + ``port=<number>`` Select a specific XVideo port. - ck=<cur|use|set> + ``ck=<cur|use|set>`` Select the source from which the colorkey is taken (default: cur). cur @@ -44,7 +44,7 @@ xv (X11 only) set Same as use but also sets the supplied colorkey. - ck-method=<man|bg|auto> + ``ck-method=<man|bg|auto>`` Sets the colorkey drawing method (default: man). man @@ -54,94 +54,93 @@ xv (X11 only) auto Let Xv draw the colorkey. -x11 (X11 only) +``x11`` (X11 only) Shared memory video output driver without hardware acceleration that works whenever X11 is present. - *NOTE*: this is a fallback only, and shouldn't be normally used. + .. note:: This is a fallback only, and should not be normally used. -vdpau (X11 only) +``vdpau`` (X11 only) Uses the VDPAU interface to display and optionally also decode video. Hardware decoding is used with ``--hwdec=vdpau``. - sharpen=<-1-1> + ``sharpen=<-1-1>`` For positive values, apply a sharpening algorithm to the video, for negative values a blurring algorithm (default: 0). - denoise=<0-1> - Apply a noise reduction algorithm to the video (default: 0, no noise + ``denoise=<0-1>`` + Apply a noise reduction algorithm to the video (default: 0; no noise reduction). - deint=<-4-4> + ``deint=<-4-4>`` Select deinterlacing mode (default: -3). Positive values choose mode and enable deinterlacing. Corresponding negative values select the same deinterlacing mode, but do not enable deinterlacing on startup - (useful in configuration files to specify what mode will be enabled by + (useful in configuration files to specify which mode will be enabled by the "D" key). All modes respect ``--field-dominance``. 0 - same as -3 + Same as -3. 1 - Show only first field, similar to ``--vf=field``. + Show only first field. 2 - Bob deinterlacing, similar to ``--vf=tfields=1``. + Bob deinterlacing. 3 - motion adaptive temporal deinterlacing. May lead to A/V desync + Motion-adaptive temporal deinterlacing. May lead to A/V desync with slow video hardware and/or high resolution. 4 - motion adaptive temporal deinterlacing with edge-guided spatial + Motion-adaptive temporal deinterlacing with edge-guided spatial interpolation. Needs fast video hardware. - chroma-deint + ``chroma-deint`` Makes temporal deinterlacers operate both on luma and chroma (default). Use no-chroma-deint to solely use luma and speed up advanced deinterlacing. Useful with slow video memory. - pullup + ``pullup`` Try to apply inverse telecine, needs motion adaptive temporal deinterlacing. - hqscaling=<0-9> + ``hqscaling=<0-9>`` 0 Use default VDPAU scaling (default). 1-9 Apply high quality VDPAU scaling (needs capable hardware). - fps=<number> + ``fps=<number>`` Override autodetected display refresh rate value (the value is needed for framedrop to allow video playback rates higher than display refresh rate, and for vsync-aware frame timing adjustments). Default 0 means use autodetected value. A positive value is interpreted as a refresh rate in Hz and overrides the autodetected value. A negative value disables all timing adjustment and framedrop logic. - composite-detect + ``composite-detect`` NVIDIA's current VDPAU implementation behaves somewhat differently under a compositing window manager and does not give accurate frame timing information. With this option enabled, the player tries to detect whether a compositing window manager is active. If one is detected, the player disables timing adjustments as if the user had - specified fps=-1 (as they would be based on incorrect input). This + specified ``fps=-1`` (as they would be based on incorrect input). This means timing is somewhat less accurate than without compositing, but - with the composited mode behavior of the NVIDIA driver there is no + with the composited mode behavior of the NVIDIA driver, there is no hard playback speed limit even without the disabled logic. Enabled by - default, use no-composite-detect to disable. - queuetime_windowed=<number> and queuetime_fs=<number> + default, use ``no-composite-detect`` to disable. + ``queuetime_windowed=<number>`` and ``queuetime_fs=<number>`` Use VDPAU's presentation queue functionality to queue future video frame changes at most this many milliseconds in advance (default: 50). See below for additional information. - output_surfaces=<2-15> + ``output_surfaces=<2-15>`` Allocate this many output surfaces to display video frames (default: 3). See below for additional information. Using the VDPAU frame queueing functionality controlled by the queuetime - options makes mpv's frame flip timing less sensitive to system CPU - load and allows mpv to start decoding the next frame(s) slightly - earlier which can reduce jitter caused by individual slow-to-decode - frames. However the NVIDIA graphics drivers can make other window behavior - such as window moves choppy if VDPAU is using the blit queue (mainly - happens if you have the composite extension enabled) and this feature is - active. If this happens on your system and it bothers you then you can set - the queuetime value to 0 to disable this feature. The settings to use in - windowed and fullscreen mode are separate because there should be less - reason to disable this for fullscreen mode (as the driver issue shouldn't - affect the video itself). + options makes mpv's frame flip timing less sensitive to system CPU load and + allows mpv to start decoding the next frame(s) slightly earlier, which can + reduce jitter caused by individual slow-to-decode frames. However, the + NVIDIA graphics drivers can make other window behavior such as window moves + choppy if VDPAU is using the blit queue (mainly happens if you have the + composite extension enabled) and this feature is active. If this happens on + your system and it bothers you then you can set the queuetime value to 0 to + disable this feature. The settings to use in windowed and fullscreen mode + are separate because there should be no reason to disable this for + fullscreen mode (as the driver issue should not affect the video itself). You can queue more frames ahead by increasing the queuetime values and the - output_surfaces count (to ensure enough surfaces to buffer video for a + ``output_surfaces`` count (to ensure enough surfaces to buffer video for a certain time ahead you need at least as many surfaces as the video has frames during that time, plus two). This could help make video smoother in some cases. The main downsides are increased video RAM requirements for @@ -150,73 +149,71 @@ vdpau (X11 only) driver implementation may also have limits on the length of maximum queuing time or number of queued surfaces that work well or at all. -direct3d_shaders (Windows only) +``direct3d_shaders`` (Windows only) Video output driver that uses the Direct3D interface. - prefer-stretchrect - Use IDirect3DDevice9::StretchRect over other methods if possible. + ``prefer-stretchrect`` + Use ``IDirect3DDevice9::StretchRect`` over other methods if possible. - disable-stretchrect - Never render the video using IDirect3DDevice9::StretchRect. + ``disable-stretchrect`` + Never render the video using ``IDirect3DDevice9::StretchRect``. - disable-textures - Never render the video using D3D texture rendering. (Rendering with - textures + shader will still be allowed. Add disable-shaders to - completely disable video rendering with textures.) + ``disable-textures`` + Never render the video using D3D texture rendering. Rendering with + textures + shader will still be allowed. Add ``disable-shaders`` to + completely disable video rendering with textures. - disable-shaders + ``disable-shaders`` Never use shaders when rendering video. - only-8bit + ``only-8bit`` Never render YUV video with more than 8 bits per component. - (Using this flag will force software conversion to 8 bit.) + Using this flag will force software conversion to 8-bit. - disable-texture-align + ``disable-texture-align`` Normally texture sizes are always aligned to 16. With this option enabled, the video texture will always have exactly the same size as the video itself. - Debug options. These might be incorrect, might be removed in the future, might - crash, might cause slow downs, etc. Contact the developers if you actually need - any of these for performance or proper operation. + Debug options. These might be incorrect, might be removed in the future, + might crash, might cause slow downs, etc. Contact the developers if you + actually need any of these for performance or proper operation. - force-power-of-2 + ``force-power-of-2`` Always force textures to power of 2, even if the device reports non-power-of-2 texture sizes as supported. - texture-memory=N + ``texture-memory=N`` Only affects operation with shaders/texturing enabled, and (E)OSD. Values for N: 0 default, will often use an additional shadow texture + copy 1 - use D3DPOOL_MANAGED + use ``D3DPOOL_MANAGED`` 2 - use D3DPOOL_DEFAULT + use ``D3DPOOL_DEFAULT`` 3 - use D3DPOOL_SYSTEMMEM, but without shadow texture + use ``D3DPOOL_SYSTEMMEM``, but without shadow texture - swap-discard - Use D3DSWAPEFFECT_DISCARD, which might be faster. - Might be slower too, as it must (?) clear every frame. + ``swap-discard`` + Use ``D3DSWAPEFFECT_DISCARD``, which might be faster. + Might be slower too, as it must(?) clear every frame. - exact-backbuffer + ``exact-backbuffer`` Always resize the backbuffer to window size. -direct3d (Windows only) +``direct3d`` (Windows only) Same as ``direct3d_shaders``, but with the options ``disable-textures`` and ``disable-shaders`` forced. -corevideo (Mac OS X 10.6 and later) +``corevideo`` (Mac OS X 10.6 and later) Mac OS X CoreVideo video output driver. Uses the CoreVideo APIs to fill PixelBuffers and generate OpenGL textures from them (useful as a fallback - for vo_opengl_). - -.. _vo_opengl: + for ``opengl``). -opengl +``opengl`` OpenGL video output driver. It supports extended scaling methods, dithering and color management. @@ -224,13 +221,13 @@ opengl ``opengl-hq`` to use this driver with defaults set to high quality rendering. - Requires at least OpenGL 2.1 and the GL_ARB_texture_rg extension. For older - drivers, ``opengl-old`` may work. + Requires at least OpenGL 2.1 and the ``GL_ARB_texture_rg`` extension. For + older drivers, ``opengl-old`` may work. Some features are available with OpenGL 3 capable graphics drivers only (or if the necessary extensions are available). - lscale=<filter> + ``lscale=<filter>`` Set the scaling filter. Possible choices: bilinear bicubic_fast @@ -257,41 +254,41 @@ opengl blackman3 blackman4 - bilinear + ``bilinear`` Bilinear hardware texture filtering (fastest, mid-quality). This is the default. - lanczos2 + ``lanczos2`` Lanczos scaling with radius=2. Provides good quality and speed. This is the default when using ``opengl-hq``. - lanczos3 + ``lanczos3`` Lanczos with radius=3. - bicubic_fast + ``bicubic_fast`` Bicubic filter. Has a blurring effect on the image, even if no scaling is done. - sharpen3 + ``sharpen3`` Unsharp masking (sharpening) with radius=3 and a default strength of 0.5 (see ``lparam1``). - sharpen5 + ``sharpen5`` Unsharp masking (sharpening) with radius=5 and a default strength of 0.5 (see ``lparam1``). - mitchell + ``mitchell`` Mitchell-Netravali. The ``b`` and ``c`` parameters can be set with ``lparam1`` and ``lparam2``. Both are set to 1/3 by default. - lparam1=<value> + ``lparam1=<value>`` Set filter parameters. Ignored if the filter is not tunable. These are unset by default, and use the filter specific default if applicable. - lparam2=<value> + ``lparam2=<value>`` See ``lparam1``. - scaler-resizes-only + ``scaler-resizes-only`` Disable the scaler if the video image is not resized. In that case, ``bilinear`` is used instead whatever is set with ``lscale``. Bilinear will reproduce the source image perfectly if no scaling is performed. @@ -299,7 +296,7 @@ opengl processing chain might do chroma scaling differently if ``lscale`` is disabled. - stereo=<value> + ``stereo=<value>`` Select a method for stereo display. You may have to use ``--aspect`` to fix the aspect value. Experimental, do not expect too much from it. @@ -313,36 +310,40 @@ opengl Convert side by side input to quadbuffered stereo. Only supported by very few OpenGL cards. - srgb + ``srgb`` Enable gamma-correct scaling by working in linear light. This makes use of sRGB textures and framebuffers. - This option forces the options 'indirect' and 'gamma'. - NOTE: for YUV colorspaces, gamma 1/0.45 (2.222) is assumed. RGB input - is always assumed to be in sRGB. + This option forces the options ``indirect`` and ``gamma``. + + .. note:: + + for YUV colorspaces, gamma 1/0.45 (2.222) is assumed. RGB input is + always assumed to be in sRGB. + This option is not really useful, as gamma-correct scaling has not much influence on typical video playback. Most visible effect comes from slightly different gamma. - pbo - Enable use of PBOs. This is faster, but can sometimes lead to - sporadic and temporary image corruption. + ``pbo`` + Enable use of PBOs. This is faster, but can sometimes lead to sporadic + and temporary image corruption. - dither-depth=<N|no|auto> + ``dither-depth=<N|no|auto>`` Set dither target depth to N. Default: no. no Disable any dithering done by mpv. auto - Automatic selection. If output bit depth can't be detected, + Automatic selection. If output bit depth cannot be detected, 8 bits per component are assumed. 8 Dither to 8 bit output. Note that the depth of the connected video display device can not be detected. Often, LCD panels will do dithering on their own, which - conflicts with vo_opengl's dithering, and leads to ugly output. + conflicts with ``opengl``'s dithering and leads to ugly output. - dither-size-fruit=<2-8> + ``dither-size-fruit=<2-8>`` Set the size of the dither matrix (default: 6). The actual size of the matrix is ``(2^N) x (2^N)`` for an option value of ``N``, so a value of 6 gives a size of 64x64. The matrix is generated at startup @@ -350,27 +351,26 @@ opengl Used in ``dither=fruit`` mode only. - dither=<fruit|ordered|no> + ``dither=<fruit|ordered|no>`` Select dithering algorithm (default: fruit). - temporal-dither + ``temporal-dither`` Enable temporal dithering. (Only active if dithering is enabled in general.) This changes between 8 different dithering pattern on each frame by changing the orientation of the tiled dithering matrix. Unfortunately, this can lead to flicker on LCD displays, since these have a high reaction time. - debug - Check for OpenGL errors, i.e. call glGetError(). Also request a + ``debug`` + Check for OpenGL errors, i.e. call ``glGetError()``. Also request a debug OpenGL context (which does nothing with current graphics drivers as of this writing). - - swapinterval=<n> + ``swapinterval=<n>`` Interval in displayed frames between two buffer swaps. 1 is equivalent to enable VSYNC, 0 to disable VSYNC. - no-scale-sep + ``no-scale-sep`` When using a separable scale filter for luma, usually two filter passes are done. This is often faster. However, it forces conversion to RGB in an extra pass, so it can actually be slower @@ -378,27 +378,27 @@ opengl this options will make rendering a single operation. Note that chroma scalers are always done as 1-pass filters. - cscale=<n> - As lscale but for chroma (2x slower with little visible effect). + ``cscale=<n>`` + As ``lscale``, but for chroma (2x slower with little visible effect). Note that with some scaling filters, upscaling is always done in RGB. If chroma is not subsampled, this option is ignored, and the luma scaler is used instead. Setting this option is often useless. - fancy-downscaling + ``fancy-downscaling`` When using convolution based filters, extend the filter size when downscaling. Trades quality for reduced downscaling performance. - no-npot + ``no-npot`` Force use of power-of-2 texture sizes. For debugging only. Borders will be distorted due to filtering. - glfinish - Call glFinish() before swapping buffers + ``glfinish`` + Call ``glFinish()`` before swapping buffers - sw + ``sw`` Continue even if a software renderer is detected. - backend=<sys> + ``backend=<sys>`` auto auto-select (default) cocoa @@ -410,39 +410,37 @@ opengl wayland Wayland/EGL - indirect - Do YUV conversion and scaling as separate passes. This will - first render the video into a video-sized RGB texture, and - draw the result on screen. The luma scaler is used to scale - the RGB image when rendering to screen. The chroma scaler - is used only on YUV conversion, and only if the video is - chroma-subsampled (usually the case). + ``indirect`` + Do YUV conversion and scaling as separate passes. This will first render + the video into a video-sized RGB texture, and draw the result on screen. + The luma scaler is used to scale the RGB image when rendering to screen. + The chroma scaler is used only on YUV conversion, and only if the video + is chroma-subsampled (usually the case). This mechanism is disabled on RGB input. Specifying this option directly is generally useful for debugging only. - fbo-format=<fmt> + ``fbo-format=<fmt>`` Selects the internal format of textures used for FBOs. The format can influence performance and quality of the video output. (FBOs are not always used, and typically only when using extended scalers.) - fmt can be one of: rgb, rgba, rgb8, rgb10, rgb16, rgb16f, rgb32f, + ``fmt`` can be one of: rgb, rgba, rgb8, rgb10, rgb16, rgb16f, rgb32f, rgba12, rgba16, rgba16f, rgba32f. Default: rgb. - gamma + ``gamma`` Always enable gamma control. (Disables delayed enabling.) - icc-profile=<file> - Load an ICC profile and use it to transform linear RGB to - screen output. Needs LittleCMS2 support compiled in. + ``icc-profile=<file>`` + Load an ICC profile and use it to transform linear RGB to screen output. + Needs LittleCMS2 support compiled in. - icc-cache=<file> - Store and load the 3D LUT created from the ICC profile in - this file. This can be used to speed up loading, since - LittleCMS2 can take a while to create the 3D LUT. - Note that this file contains an uncompressed LUT. Its size depends on - the ``3dlut-size``, and can be very big. + ``icc-cache=<file>`` + Store and load the 3D LUT created from the ICC profile in this file. + This can be used to speed up loading, since LittleCMS2 can take a while + to create the 3D LUT. Note that this file contains an uncompressed LUT. + Its size depends on the ``3dlut-size``, and can be very big. - icc-intent=<value> + ``icc-intent=<value>`` 0 perceptual 1 @@ -452,69 +450,65 @@ opengl 3 absolute colorimetric (default) - 3dlut-size=<r>x<g>x<b> - Size of the 3D LUT generated from the ICC profile in each - dimension. Default is 128x256x64. + ``3dlut-size=<r>x<g>x<b>`` + Size of the 3D LUT generated from the ICC profile in each dimension. + Default is 128x256x64. Sizes must be a power of two, and 256 at most. - alpha + ``alpha`` Try to create a framebuffer with alpha component. This only makes sense if the video contains alpha information (which is extremely rare). May not be supported on all platforms. If alpha framebuffers are - unavailable, it silently falls back to a normal framebuffer. Note - that when using FBO indirections (such as with ``opengl-hq``), a FBO + unavailable, it silently falls back on a normal framebuffer. Note + that when using FBO indirections (such as with ``opengl-hq``), an FBO format with alpha must be specified with the ``fbo-format`` option. - chroma-location=<auto|center|left> + ``chroma-location=<auto|center|left>`` Set the YUV chroma sample location. auto means use the bitstream flags (default: auto). -opengl-hq +``opengl-hq`` Same as ``opengl``, but with default settings for high quality rendering. - This is equivalent to: + This is equivalent to:: - | --vo=opengl:lscale=lanczos2:dither-depth=auto:pbo:fbo-format=rgb16 + --vo=opengl:lscale=lanczos2:dither-depth=auto:pbo:fbo-format=rgb16 Note that some cheaper LCDs do dithering that gravely interferes with - vo_opengl's dithering. Disabling dithering with ``dither-depth=no`` helps. + ``opengl``'s dithering. Disabling dithering with ``dither-depth=no`` helps. Unlike ``opengl``, ``opengl-hq`` makes use of FBOs by default. Sometimes you - can achieve better quality or performance by changing the fbo-format - sub-option to ``rgb16f``, ``rgb32f`` or ``rgb``. (Known problems include + can achieve better quality or performance by changing the ``fbo-format`` + suboption to ``rgb16f``, ``rgb32f`` or ``rgb``. Known problems include Mesa/Intel not accepting ``rgb16``, Mesa sometimes not being compiled with - float texture support, and some OSX setups being very slow with ``rgb16``, - but fast with ``rgb32f``.) + float texture support, and some OSX setups being very slow with ``rgb16`` + but fast with ``rgb32f``. -opengl-old +``opengl-old`` OpenGL video output driver, old version. Video size must be smaller than the maximum texture size of your OpenGL implementation. Intended to work even with the most basic OpenGL implementations, but also makes use - of newer extensions, which allow support for more colorspaces. + of newer extensions which allow support for more color spaces. The code performs very few checks, so if a feature does not work, this - might be because it is not supported by your card/OpenGL implementation - even if you do not get any error message. Use ``glxinfo`` or a similar - tool to display the supported OpenGL extensions. + might be because it is not supported by your card and/or OpenGL + implementation, even if you do not get any error message. Use ``glxinfo`` + or a similar tool to display the supported OpenGL extensions. - (no-)ati-hack + ``(no-)ati-hack`` ATI drivers may give a corrupted image when PBOs are used (when using - `force-pbo`). This option fixes this, at the expense of - using a bit more memory. - (no-)force-pbo + ``force-pbo``). This option fixes this, at the expense of using a bit + more memory. + ``(no-)force-pbo`` Always uses PBOs to transfer textures even if this involves an extra - copy. Currently this gives a little extra speed with NVidia drivers - and a lot more speed with ATI drivers. May need - the ati-hack suboption to work correctly. - (no-)scaled-osd - Changes the way the OSD behaves when the size of the window changes - (default: disabled). When enabled behaves more like the other video - output drivers, which is better for fixed-size fonts. Disabled looks - much better with FreeType fonts and uses the borders in fullscreen - mode. Does not work correctly with ass subtitles (see ``--ass``), you - can instead render them without OpenGL support via ``--vf=ass``. - rectangle=<0,1,2> - Select usage of rectangular textures which saves video RAM, but often + copy. Currently this gives a little extra speed with NVIDIA drivers + and a lot more speed with ATI drivers. May need the ``ati-hack`` + suboption to work correctly. + ``(no-)scaled-osd`` + Scales the OSD and subtitles instead of rendering them at display size + (default: disabled). + ``rectangle=<0,1,2>`` + Select usage of rectangular textures, which saves video RAM, but often is slower (default: 0). 0 @@ -525,18 +519,18 @@ opengl-old Use the ``GL_ARB_texture_non_power_of_two`` extension. In some cases only supported in software and thus very slow. - swapinterval=<n> + ``swapinterval=<n>`` Minimum interval between two buffer swaps, counted in displayed frames (default: 1). 1 is equivalent to enabling VSYNC, 0 to disabling VSYNC. Values below 0 will leave it at the system default. This limits the framerate to (horizontal refresh rate / n). Requires ``GLX_SGI_swap_control`` support to work. With some (most/all?) implementations this only works in fullscreen mode. - ycbcr + ``ycbcr`` Use the ``GL_MESA_ycbcr_texture`` extension to convert YUV to RGB. In most cases this is probably slower than doing software conversion to RGB. - yuv=<n> + ``yuv=<n>`` Select the type of YUV to RGB conversion. The default is auto-detection deciding between values 0 and 2. @@ -544,16 +538,16 @@ opengl-old Use software conversion. Compatible with all OpenGL versions. Provides brightness, contrast and saturation control. 1 - Same as 2. This used to use nVidia-specific extensions, which - didn't provide any advantages over using fragment programs, except - possibly on very ancient graphic cards. It produced a gray-ish + Same as 2. This used to use NVIDIA-specific extensions, which + did not provide any advantages over using fragment programs, except + possibly on very ancient graphics cards. It produced a gray-ish output, which is why it has been removed. 2 Use a fragment program. Needs the ``GL_ARB_fragment_program`` extension and at least three texture units. Provides brightness, contrast, saturation and hue control. 3 - Use a fragment program using the POW instruction. Needs the + Use a fragment program using the ``POW`` instruction. Needs the ``GL_ARB_fragment_program`` extension and at least three texture units. Provides brightness, contrast, saturation, hue and gamma control. Gamma can also be set independently for red, green and @@ -579,7 +573,7 @@ opengl-old also be set independently for red, green and blue. Speed depends more on GPU memory bandwidth than other methods. - lscale=<n> + ``lscale=<n>`` Select the scaling function to use for luminance scaling. Only valid for yuv modes 2, 3, 4 and 6. @@ -597,18 +591,18 @@ opengl-old some cards. 4 Use experimental unsharp masking with 3x3 support and a default - strength of 0.5 (see `filter-strength`). + strength of 0.5 (see ``filter-strength``). 5 Use experimental unsharp masking with 5x5 support and a default - strength of 0.5 (see `filter-strength`). + strength of 0.5 (see ``filter-strength``). - cscale=<n> + ``cscale=<n>`` Select the scaling function to use for chrominance scaling. For - details see `lscale`. - filter-strength=<value> - Set the effect strength for the `lscale`/`cscale` filters that support - it. - stereo=<value> + details see ``lscale``. + ``filter-strength=<value>`` + Set the effect strength for the ``lscale``/``cscale`` filters that + support it. + ``stereo=<value>`` Select a method for stereo display. You may have to use ``--aspect`` to fix the aspect value. Experimental, do not expect too much from it. @@ -622,44 +616,43 @@ opengl-old Convert side by side input to quadbuffered stereo. Only supported by very few OpenGL cards. - The following options are only useful if writing your own fragment - programs. + The following options are only useful if writing your own fragment programs. - customprog=<filename> - Load a custom fragment program from <filename>. See + ``customprog=<filename>`` + Load a custom fragment program from ``<filename>``. See ``TOOLS/edgedect.fp`` for an example. - customtex=<filename> - Load a custom "gamma ramp" texture from <filename>. This can be used - in combination with yuv=4 or with the customprog option. - (no-)customtlin + ``customtex=<filename>`` + Load a custom "gamma ramp" texture from ``<filename>``. This can be used + in combination with ``yuv=4`` or with the ``customprog`` option. + ``(no-)customtlin`` If enabled (default) use ``GL_LINEAR`` interpolation, otherwise use ``GL_NEAREST`` for customtex texture. - (no-)customtrect - If enabled, use texture_rectangle for customtex texture. Default is - disabled. - (no-)mipmapgen + ``(no-)customtrect`` + If enabled, use ``texture_rectangle`` for the ``customtex`` texture. + Default is disabled. + ``(no-)mipmapgen`` If enabled, mipmaps for the video are automatically generated. This - should be useful together with the customprog and the TXB instruction - to implement blur filters with a large radius. For most OpenGL - implementations this is very slow for any non-RGB formats. Default is - disabled. + should be useful together with the ``customprog`` and the ``TXB`` + instruction to implement blur filters with a large radius. For most + OpenGL implementations, this is very slow for any non-RGB formats. + Default is disabled. - Normally there is no reason to use the following options, they mostly + Normally there is no reason to use the following options; they mostly exist for testing purposes. - (no-)glfinish + ``(no-)glfinish`` Call ``glFinish()`` before swapping buffers. Slower but in some cases more correct output (default: disabled). - (no-)manyfmts - Enables support for more (RGB and BGR) color formats (default: - enabled). Needs OpenGL version >= 1.2. - slice-height=<0-...> + ``(no-)manyfmts`` + Enables support for more (RGB and BGR) color formats (default: enabled). + Needs OpenGL version >= 1.2. + ``slice-height=<0-...>`` Number of lines copied to texture in one piece (default: 0). 0 for whole image. - sw + ``sw`` Continue even if a software renderer is detected. - backend=<sys> + ``backend=<sys>`` auto auto-select (default) cocoa @@ -671,28 +664,28 @@ opengl-old wayland Wayland/EGL -sdl +``sdl`` SDL 2.0+ Render video output driver, depending on system with or without - hardware acceleration. Should work everywhere where SDL 2.0 builds. For - tuning, refer to your copy of the file SDL_hints.h. + hardware acceleration. Should work on all platforms supported by SDL 2.0. + For tuning, refer to your copy of the file ``SDL_hints.h``. - sw + ``sw`` Continue even if a software renderer is detected. - switch-mode + ``switch-mode`` Instruct SDL to switch the monitor video mode when going fullscreen. -null +``null`` Produces no video output. Useful for benchmarking. -caca +``caca`` Color ASCII art video output driver that works on a text console. -image +``image`` Output each frame into an image file in the current directory. Each file takes the frame number padded with leading zeros as name. - format=<format> + ``format=<format>`` Select the image file format. jpg @@ -710,22 +703,22 @@ image tga Truevision TGA. - png-compression=<0-9> + ``png-compression=<0-9>`` PNG compression factor (speed vs. file size tradeoff) (default: 7) - png-filter=<0-5> + ``png-filter=<0-5>`` Filter applied prior to PNG compression (0 = none; 1 = sub; 2 = up; 3 = average; 4 = Paeth; 5 = mixed) (default: 5) - jpeg-quality=<0-100> + ``jpeg-quality=<0-100>`` JPEG quality factor (default: 90) - [no-]jpeg-progressive + ``(no-)jpeg-progressive`` Specify standard or progressive JPEG (default: no). - [no-]jpeg-baseline + ``(no-)jpeg-baseline`` Specify use of JPEG baseline or not (default: yes). - jpeg-optimize=<0-100> + ``jpeg-optimize=<0-100>`` JPEG optimization factor (default: 100) - jpeg-smooth=<0-100> + ``jpeg-smooth=<0-100>`` smooth factor (default: 0) - jpeg-dpi=<1-> + ``jpeg-dpi=<1->`` JPEG DPI (default: 72) - outdir=<dirname> + ``outdir=<dirname>`` Specify the directory to save the image files to (default: ``./``). |