csputils: implement sony s-gamut

The S-Log "matching" colorspace

1 files changed, 9 insertions, 0 deletions

diff --git a/video/csputils.c b/video/csputils.c
index 5b5c4e1def..c97f08ea0c 100644
--- a/video/csputils.c
+++ b/video/csputils.c
@@ -66,6 +66,7 @@ const struct m_opt_choice_alternatives mp_csp_prim_names[] = {
     {"cie1931",     MP_CSP_PRIM_CIE_1931},
     {"dci-p3",      MP_CSP_PRIM_DCI_P3},
     {"v-gamut",     MP_CSP_PRIM_V_GAMUT},
+    {"s-gamut",     MP_CSP_PRIM_S_GAMUT},
     {0}
 };
 
@@ -453,6 +454,14 @@ struct mp_csp_primaries mp_get_csp_primaries(enum mp_csp_prim spc)
             .blue  = {0.100, -0.03},
             .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:
         return (struct mp_csp_primaries) {{0}};
     }