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csputils: implement sony s-gamut

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The S-Log "matching" colorspace
This commit is contained in:
Niklas Haas 2017-06-10 02:10:41 +02:00 committed by wm4
parent c3f32f3a6e
commit da7ae75e26
3 changed files with 12 additions and 0 deletions
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2
DOCS/man/options.rst
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@ -4597,6 +4597,8 @@ The following video options are currently all specific to ``--vo=opengl`` and
DCI-P3 (Digital Cinema Colorspace), SMPTE RP431-2 DCI-P3 (Digital Cinema Colorspace), SMPTE RP431-2
v-gamut v-gamut
Panasonic V-Gamut (VARICAM) primaries Panasonic V-Gamut (VARICAM) primaries
s-gamut
Sony S-Gamut (S-Log) primaries
``--target-trc=<value>`` ``--target-trc=<value>``
Specifies the transfer characteristics (gamma) of the display. Video colors Specifies the transfer characteristics (gamma) of the display. Video colors

9
video/csputils.c
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@ -66,6 +66,7 @@ const struct m_opt_choice_alternatives mp_csp_prim_names[] = {
{"cie1931", MP_CSP_PRIM_CIE_1931}, {"cie1931", MP_CSP_PRIM_CIE_1931},
{"dci-p3", MP_CSP_PRIM_DCI_P3}, {"dci-p3", MP_CSP_PRIM_DCI_P3},
{"v-gamut", MP_CSP_PRIM_V_GAMUT}, {"v-gamut", MP_CSP_PRIM_V_GAMUT},
{"s-gamut", MP_CSP_PRIM_S_GAMUT},
{0} {0}
}; };
@ -453,6 +454,14 @@ struct mp_csp_primaries mp_get_csp_primaries(enum mp_csp_prim spc)
.blue = {0.100, -0.03}, .blue = {0.100, -0.03},
.white = d65 .white = d65
}; };
// From Sony S-Log reference manual
case MP_CSP_PRIM_S_GAMUT:
return (struct mp_csp_primaries) {
.red = {0.730, 0.280},
.green = {0.140, 0.855},
.blue = {0.100, -0.05},
.white = d65
};
default: default:
return (struct mp_csp_primaries) {{0}}; return (struct mp_csp_primaries) {{0}};
} }

1
video/csputils.h
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@ -65,6 +65,7 @@ enum mp_csp_prim {
MP_CSP_PRIM_CIE_1931, MP_CSP_PRIM_CIE_1931,
MP_CSP_PRIM_DCI_P3, MP_CSP_PRIM_DCI_P3,
MP_CSP_PRIM_V_GAMUT, MP_CSP_PRIM_V_GAMUT,
MP_CSP_PRIM_S_GAMUT,
MP_CSP_PRIM_COUNT MP_CSP_PRIM_COUNT
}; };