vo: enable correct-downscaling, linear-downscaling, sigmoid-upscaling

DOCS/interface-changes.rst

@@ -63,6 +63,7 @@ Interface changes
     - remove `bcspline` filter (`bicubic` is now the same as `bcspline`)
     - rename `--cache-dir` and `--cache-unlink-files` to `--demuxer-cache-dir` and
       `--demuxer-cache-unlink-files`
+    - enable `--correct-downscaling`, `--linear-downscaling`, `--sigmoid-upscaling`
  --- mpv 0.36.0 ---
     - add `--target-contrast`
     - Target luminance value is now also applied when ICC profile is used.

DOCS/man/options.rst

@@ -5293,7 +5293,7 @@ them.
         Catmull-Rom. A Cubic filter in the same vein as ``mitchell``, where
         the ``B`` and ``C`` parameters are ``0.0`` and ``0.5`` respectively.
         This filter is sharper than ``mitchell``, but it results in mild
-        ringing. Like ``mitchell``, this filter is good at downscaling (see 
+        ringing. Like ``mitchell``, this filter is good at downscaling (see
         ``--dscale``).
 
     ``oversample``
@@ -5438,6 +5438,7 @@ them.
 ``--correct-downscaling``
     When using convolution based filters, extend the filter size when
     downscaling. Increases quality, but reduces performance while downscaling.
+    Enabled by default.
 
     This will perform slightly sub-optimally for anamorphic video (but still
     better than without it) since it will extend the size to match only the
@@ -5448,7 +5449,7 @@ them.
 ``--linear-downscaling``
     Scale in linear light when downscaling. It should only be used with a
     ``--fbo-format`` that has at least 16 bit precision. This option
-    has no effect on HDR content.
+    has no effect on HDR content. Enabled by default.
 
 ``--linear-upscaling``
     Scale in linear light when upscaling. Like ``--linear-downscaling``, it
@@ -5459,7 +5460,7 @@ them.
 
 ``--sigmoid-upscaling``
     When upscaling, use a sigmoidal color transform to avoid emphasizing
-    ringing artifacts. This is incompatible with and replaces
+    ringing artifacts. Enabled by default. This is incompatible with and replaces
     ``--linear-upscaling``. (Note that sigmoidization also requires
     linearization, so the ``LINEAR`` rendering step fires in both cases)
 

video/out/gpu/video.c

@@ -313,6 +313,9 @@ static const struct gl_video_opts gl_video_opts_def = {
          .clamp = 1, }, // tscale
     },
     .scaler_resizes_only = true,
+    .correct_downscaling = true,
+    .linear_downscaling = true,
+    .sigmoid_upscaling = true,
     .scaler_lut_size = 6,
     .interpolation_threshold = 0.01,
     .alpha_mode = ALPHA_BLEND_TILES,