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Diffstat (limited to 'DOCS')
| -rw-r--r-- | DOCS/man/vo.rst | 72 |
1 files changed, 30 insertions, 42 deletions
diff --git a/DOCS/man/vo.rst b/DOCS/man/vo.rst index a9a8e6db95..d76c95f987 100644 --- a/DOCS/man/vo.rst +++ b/DOCS/man/vo.rst @@ -426,11 +426,29 @@ Available video output drivers are: debug OpenGL context (which does nothing with current graphics drivers as of this writing). + ``interpolation`` + Reduce stuttering caused by mismatches in the video fps and display + refresh rate (also known as judder). + + This essentially attempts to interpolate the missing frames by + convoluting the video along the temporal axis. The filter used can be + controlled using the ``tscale`` setting. + + Note that this relies on vsync to work, see ``swapinterval`` for more + information. + ``swapinterval=<n>`` Interval in displayed frames between two buffer swaps. 1 is equivalent to enable VSYNC, 0 to disable VSYNC. Defaults to 1 if not specified. + Note that this depends on proper OpenGL vsync support. On some platforms + and drivers, this only works reliably when in fullscreen mode. It may + also require driver-specific hacks if using multiple monitors, to + ensure mpv syncs to the right one. Compositing window managers can + also lead to bad results, as can missing or incorrect display FPS + information (see ``--display-fps``). + ``cscale=<filter>`` As ``scale``, but for interpolating chroma information. If the image is not subsampled, this option is ignored entirely. @@ -445,6 +463,18 @@ Available video output drivers are: See ``scale-param1``, ``scale-param2``, ``scale-radius`` and ``scale-antiring``. + ``tscale=<filter>``, ``tscale-param1``, ``tscale-param2``, ``tscale-antiring`` + The filter used for interpolating the temporal axis (frames). This is + only used if ``interpolation`` is enabled. The only valid choices + for ``tscale`` are separable convolution filters (use ``tscale=help`` + to get a list). The other options (``tscale-param1`` etc.) are + analogous to their ``scale`` counterparts. The default is ``mitchell``. + + Note that the maximum supported filter radius is currently 3, and that + using filters with larger radius may introduce isues when pausing or + framestepping, proportional to the radius used. It is recommended to + stick to a radius of 1 or 2. + ``linear-scaling`` Scale in linear light. This is automatically enabled if ``target-prim``, ``target-trc``, ``icc-profile`` or @@ -636,48 +666,6 @@ Available video output drivers are: Color used to draw parts of the mpv window not covered by video. See ``--osd-color`` option how colors are defined. - ``smoothmotion`` - Reduce stuttering caused by mismatches in video fps and display - refresh rate (also known as judder). - - Instead of drawing source frames for variable durations, smoothmotion - will blend frames that overlap the transition between two frames in - the source material. - - For example, a 24 Hz clip played back on a 60 Hz display would normally - result in a pattern like this:: - - A A A B B C C C D D E E E F F - - which has different lengths, alternating between 3 and 2. This - difference in frame duration is what causes judder. - - With smoothmotion enabled, the pattern changes to:: - - A A A+B B B C C C+D D D E E E+F F F - - where A+B is a blend of A and B. In this pattern, each frame gets a - (consistent) duration of roughly 2.5 - resulting in smooth motion. - - GPU drivers or compositing window managers overriding vsync behavior - can lead to bad results. If the framerate is close to or over the - display refresh rate, results can be bad as well. - - .. note:: On systems other than Linux or OS X, you currently must set - the ``--display-fps`` option, or the results will be bad. - - ``smoothmotion-threshold=<0.0-0.5>`` - Mix threshold at which interpolation is skipped (default: 0.0 – never - skip). - - For example, with a ``smoothmotion-threshold`` of 0.1, if the - smoothmotion algorithm would try to blend two frames by a ratio of - 95% A + 5% B, it would simply display A instead. (Since the - distance, 0.05, is lower than the threshold) - - Setting this to 0.5 would be similar to disabling smoothmotion - completely, since it would always just display the nearest frame. - ``opengl-hq`` Same as ``opengl``, but with default settings for high quality rendering. |