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authorNiklas Haas <git@haasn.xyz>2019-01-04 16:46:38 +0100
committerJan Ekström <jeebjp@gmail.com>2019-02-18 01:54:06 +0200
commit3f1bc25d4de6150b0acff7e92d3e3084a7d989f0 (patch)
tree71d9e56cebef3fa8553795847a3c47bba54be1bb /DOCS
parentb4b719e33748970a9bf98a82a017d8f149ecb557 (diff)
downloadmpv-3f1bc25d4de6150b0acff7e92d3e3084a7d989f0.tar.bz2
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vo_gpu: use dB units for scene change detection
Rather than the linear cd/m^2 units, these (relative) logarithmic units lend themselves much better to actually detecting scene changes, especially since the scene averaging was changed to also work logarithmically.
Diffstat (limited to 'DOCS')
-rw-r--r--DOCS/man/options.rst6
1 files changed, 3 insertions, 3 deletions
diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst
index e5a897ba4f..2e15106bf0 100644
--- a/DOCS/man/options.rst
+++ b/DOCS/man/options.rst
@@ -5264,9 +5264,9 @@ The following video options are currently all specific to ``--vo=gpu`` and
to excessive flicker. (In signal theory terms, this controls the time
constant "tau" of an IIR low pass filter)
-``--hdr-scene-threshold-low=<0..10000>``, ``--hdr-scene-threshold-high=<0..10000>``
- The lower and upper thresholds (in cd/m^2) for a brightness difference to
- be considered a scene change (default: 50 low, 200 high). This is only
+``--hdr-scene-threshold-low=<0.0..100.0>``, ``--hdr-scene-threshold-high=<0.0..100.0>``
+ The lower and upper thresholds (in dB) for a brightness difference
+ to be considered a scene change (default: 5.5 low, 10.0 high). This is only
relevant when ``--hdr-compute-peak`` is enabled. Normally, small
fluctuations in the frame brightness are compensated for by the peak
averaging mechanism, but for large jumps in the brightness this can result