diff options
Diffstat (limited to 'DOCS')
| -rw-r--r-- | DOCS/interface-changes.rst | 1 | ||||
| -rw-r--r-- | DOCS/man/options.rst | 24 |
2 files changed, 25 insertions, 0 deletions
diff --git a/DOCS/interface-changes.rst b/DOCS/interface-changes.rst index 7e723b9dbe..ce7e33176a 100644 --- a/DOCS/interface-changes.rst +++ b/DOCS/interface-changes.rst @@ -51,6 +51,7 @@ Interface changes only using a single value (which previously just controlled the exponent). The strength now linearly blends between the linear and nonlinear tone mapped versions of a color. + - add --hdr-peak-decay-rate and --hdr-scene-threshold-low/high --- mpv 0.29.0 --- - drop --opensles-sample-rate, as --audio-samplerate should be used if desired - drop deprecated --videotoolbox-format, --ff-aid, --ff-vid, --ff-sid, diff --git a/DOCS/man/options.rst b/DOCS/man/options.rst index 1c08917d7a..0f7007bf89 100644 --- a/DOCS/man/options.rst +++ b/DOCS/man/options.rst @@ -5245,6 +5245,30 @@ The following video options are currently all specific to ``--vo=gpu`` and The special value ``auto`` (default) will enable HDR peak computation automatically if compute shaders and SSBOs are supported. +``--hdr-peak-decay-rate=<1.0..1000.0>`` + The decay rate used for the HDR peak detection algorithm (default: 100.0). + This is only relevant when ``--hdr-compute-peak`` is enabled. Higher values + make the peak decay more slowly, leading to more stable values at the cost + of more "eye adaptation"-like effects (although this is mitigated somewhat + by ``--hdr-scene-threshold``). A value of 1.0 (the lowest possible) disables + all averaging, meaning each frame's value is used directly as measured, + but doing this is not recommended for "noisy" sources since it may lead + 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 + 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 + in the frame remaining too bright or too dark for up to several seconds, + depending on the value of ``--hdr-peak-decay-rate``. To counteract this, + when the brightness between the running average and the current frame + exceeds the low threshold, mpv will make the averaging filter more + aggressive, up to the limit of the high threshold (at which point the + filter becomes instant). + ``--tone-mapping-desaturate=<0.0..1.0>`` Apply desaturation for highlights (default: 0.75). The parameter controls the strength of the desaturation curve. A value of 0.0 completely disables |