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| author | Niklas Haas <git@nand.wakku.to> | 2015-10-21 11:09:01 +0200 |
|---|---|---|
| committer | wm4 <wm4@nowhere> | 2015-10-21 11:32:31 +0200 |
| commit | eb66038d4ff9dd2faadd317d8eb777ebbaa9687f (patch) | |
| tree | b9a4780917cbda99d36424a50ca6893f529883ef | |
| parent | 1ee8ce75f1f079e7d482297abd0848689718b35b (diff) | |
| download | mpv-eb66038d4ff9dd2faadd317d8eb777ebbaa9687f.tar.bz2 mpv-eb66038d4ff9dd2faadd317d8eb777ebbaa9687f.tar.xz | |
vo_opengl: make the default debanding settings less excessive
It's great that the new algorithm supports multiple placebo iterations
and all, but it's really not necessary and hurts performance in the
general case for the sake of the 0.1% that actually pause the screen
and look for minute differences.
Signed-off-by: wm4 <wm4@nowhere>
| -rw-r--r-- | DOCS/man/vo.rst | 12 | ||||
| -rw-r--r-- | video/out/opengl/video_shaders.c | 4 |
2 files changed, 8 insertions, 8 deletions
diff --git a/DOCS/man/vo.rst b/DOCS/man/vo.rst index 80eed25ef5..7b6358be6e 100644 --- a/DOCS/man/vo.rst +++ b/DOCS/man/vo.rst @@ -611,11 +611,8 @@ Available video output drivers are: ``deband-iterations=<1..16>`` The number of debanding steps to perform per sample. Each step reduces a bit more banding, but takes time to compute. Note that the strength - of each step falls off very quickly, so high numbers are practically - useless. (Default 4) - - If the performance hit of debanding is too great, you can reduce this - to 2 or 1 with marginal visual quality loss. + of each step falls off very quickly, so high numbers (>4) are + practically useless. (Default 1) ``deband-threshold=<0..4096>`` The debanding filter's cut-off threshold. Higher numbers increase the @@ -625,7 +622,10 @@ Available video output drivers are: ``deband-range=<1..64>`` The debanding filter's initial radius. The radius increases linearly for each iteration. A higher radius will find more gradients, but - a lower radius will smooth more aggressively. (Default 8) + a lower radius will smooth more aggressively. (Default 16) + + If you increase the ``deband-iterations``, you should probably + decrease this to compensate. ``deband-grain=<0..4096>`` Add some extra noise to the image. This significantly helps cover up diff --git a/video/out/opengl/video_shaders.c b/video/out/opengl/video_shaders.c index 71aee96fcb..917d1939c5 100644 --- a/video/out/opengl/video_shaders.c +++ b/video/out/opengl/video_shaders.c @@ -326,9 +326,9 @@ struct deband_opts { }; const struct deband_opts deband_opts_def = { - .iterations = 4, + .iterations = 1, .threshold = 64.0, - .range = 8.0, + .range = 16.0, .grain = 48.0, }; |