manpage: clarify target-prim/trc=auto behavior

This logic has been changed throughout the years, notably in 38ac5d5 and
3bdbf6. Update the documentation to reflect the current state.

Closes #5834.
This commit is contained in:
Niklas Haas 2018-05-17 01:41:26 +02:00 committed by sfan5
parent e5b2af0a80
commit 37ec321287
1 changed files with 6 additions and 2 deletions

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@ -5039,7 +5039,9 @@ The following video options are currently all specific to ``--vo=gpu`` and
are:
auto
Disable any adaptation (default)
Disable any adaptation, except for atypical color spaces. Specifically,
wide/unusual gamuts get automatically adapted to BT.709, while standard
gamut (i.e. BT.601 and BT.709) content is not touched. (default)
bt.470m
ITU-R BT.470 M
bt.601-525
@ -5071,7 +5073,9 @@ The following video options are currently all specific to ``--vo=gpu`` and
Valid values are:
auto
Disable any adaptation (default)
Disable any adaptation, except for atypical transfers. Specifically,
HDR or linear light source material gets automatically converted to
gamma 2.2, while SDR content is not touched. (default)
bt.1886
ITU-R BT.1886 curve (assuming infinite contrast)
srgb