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Diffstat (limited to 'DOCS/man/vo.rst')
-rw-r--r-- | DOCS/man/vo.rst | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/DOCS/man/vo.rst b/DOCS/man/vo.rst index bbca84ecdb..91452c0d57 100644 --- a/DOCS/man/vo.rst +++ b/DOCS/man/vo.rst @@ -446,10 +446,16 @@ Available video output drivers are: RGB. If chroma is not subsampled, this option is ignored, and the luma scaler is used instead. Setting this option is often useless. - ``lscale-down=<filter>``, ``cscale-down=<filter>`` - Like ``lscale`` and ``cscale``, but apply these filters on downscaling + ``lscale-down=<filter>` + Like ``lscale``, but apply these filters on downscaling instead. If these options are unset, the filter implied by ``lscale`` - (and ``cscale``, respectively) will be applied. + will be applied. + + There used to be a ``cscale-down`` option. This was removed, because + chroma scaling is usually only used for upscaling. The only case where + this was actually used for downscaling was when the video was scaled + down by more than twice (or other factors, depending on image formats), + and ``lscale`` did not use a separable scaler. ``cparam1``, ``cparam2``, ``cradius`` Set filter parameters and radius for ``cscale``. |