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DOCS: update documentation related to color management 

Some of this documentation was left woefully inaccurate as color
management in mpv evolved. This commit updates all of the wording and
adds notes and comments where appropriate.
This commit is contained in:
Niklas Haas 2016-05-06 18:00:39 +02:00 committed by wm4
parent a93fb460cd
commit 7c5188c27e
2 changed files with 12 additions and 6 deletions
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2
DOCS/man/vf.rst
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@ -303,7 +303,7 @@ Available filters are:
Available gamma functions are:
:auto: automatic selection (default)
:bt.1886: ITU-R BT.1886 (approximation of BT.601/BT.709/BT.2020 curve)
:bt.1886: ITU-R BT.1886 (EOTF corresponding to BT.601/BT.709/BT.2020)
:srgb: IEC 61966-2-4 (sRGB)
:linear: Linear light
:gamma1.8: Pure power curve (gamma 1.8)

16
DOCS/man/vo.rst
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@ -855,6 +855,10 @@ Available video output drivers are:
0.8
Pitch black room
NOTE: Typical movie content (Blu-ray etc.) already contains a gamma
drop of about 0.8, so specifying it here as well will result in even
even darker image than intended!
``gamma-auto``
Automatically corrects the gamma value depending on ambient lighting
conditions (adding a gamma boost for dark rooms).
@ -865,8 +869,9 @@ Available video output drivers are:
NOTE: Only implemented on OS X.
``target-prim=<value>``
Specifies the primaries of the display. Video colors will be adapted
to this colorspace if necessary. Valid values are:
Specifies the primaries of the display. Video colors will be adapted to
this colorspace when ICC color management is not being used. Valid
values are:
auto
Disable any adaptation (default)
@ -893,12 +898,13 @@ Available video output drivers are:
``target-trc=<value>``
Specifies the transfer characteristics (gamma) of the display. Video
colors will be adjusted to this curve. Valid values are:
colors will be adjusted to this curve when ICC color management is
not being used. Valid values are:
auto
Disable any adaptation (default)
bt.1886
ITU-R BT.1886 curve, without the brightness drop (approx. 1.961)
ITU-R BT.1886 curve (assuming infinite contrast)
srgb
IEC 61966-2-4 (sRGB)
linear
@ -913,7 +919,7 @@ Available video output drivers are:
ProPhoto RGB (ROMM)
``icc-profile=<file>``
Load an ICC profile and use it to transform linear RGB to screen output.
Load an ICC profile and use it to transform video RGB to screen output.
Needs LittleCMS 2 support compiled in. This option overrides the
``target-prim``, ``target-trc`` and ``icc-profile-auto`` options.