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Diffstat (limited to 'DOCS/man/vo.rst')
| -rw-r--r-- | DOCS/man/vo.rst | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/DOCS/man/vo.rst b/DOCS/man/vo.rst index ae7e377771..5e03361bf9 100644 --- a/DOCS/man/vo.rst +++ b/DOCS/man/vo.rst @@ -306,9 +306,10 @@ Available video output drivers are: ``ewa_lanczos`` Elliptic weighted average Lanczos scaling. Also known as Jinc. Relatively slow, but very good quality. The number of taps can - be controlled with ``lradius``. + be controlled with ``lradius``. Adding extra taps makes the filter + sharper but adds more ringing. - Adding extra taps makes the filter sharper but adds more ringing. + This filter supports antiringing (see ``lantiring``). ``mitchell`` Mitchell-Netravali. The ``b`` and ``c`` parameters can be set with @@ -337,6 +338,14 @@ Available video output drivers are: ratio, the radius that actually being used might be different (most likely being increased a bit). + ``lantiring=<value>`` + Set the antiringing strength. This tries to eliminate ringing, but can + introduce other artifacts in the process. Must be a float number + between 0.0 and 1.0. The default value of 0.0 disables antiringing + entirely. + + Note that this currently only affects ``ewa_lanczos``. + ``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 @@ -434,10 +443,10 @@ Available video output drivers are: down by more than twice (or other factors, depending on image formats), and ``lscale`` did not use a separable scaler. - ``cparam1``, ``cparam2``, ``cradius`` + ``cparam1``, ``cparam2``, ``cradius``, ``cantiring`` Set filter parameters and radius for ``cscale``. - See ``lparam1``, ``lparam2`` and ``lradius``. + See ``lparam1``, ``lparam2``, ``lradius`` and ``lantiring``. ``fancy-downscaling`` When using convolution based filters, extend the filter size |