Document BT.709 v210 conversion

2026-05-24 21:17:44 +03:00
parent 22335bb378
commit f79eeadde6
2 changed files with 8 additions and 2 deletions
@@ -62,6 +62,8 @@ void main()
        default: y10 = y5;  cb10 = cb4; cr10 = cr4; break;
    }

+    // BT.709 limited-range YCbCr to RGB. v210 stores 10-bit video-range
+    // samples: Y [64, 940], Cb/Cr centered at 512.
    int yp  = int(y10) - 64;
    int cbp = int(cb10) - 512;
    int crp = int(cr10) - 512;
@@ -79,4 +81,4 @@ void main()
    b = clamp(b, 0, 255);

    imageStore(dstImage, dstPos, vec4(float(r) / 255.0, float(g) / 255.0, float(b) / 255.0, 1.0));
-}
+}