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Commit e202e515 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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[media] vivid-tpg.c: fix wrong Bt.2020 coefficients 



Mistyping 0.2627 as 0.2726 I can understand, but -0.4598 as -0.4629? No idea how
I managed that. Anyway, these coefficients are now correct again.

Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@osg.samsung.com>
parent 486e56be

drivers/media/platform/vivid/vivid-tpg.c

+2 −2
Original line number Diff line number Diff line
@@ -480,9 +480,9 @@ static void color_to_ycbcr(struct tpg_data *tpg, int r, int g, int b, 
		{ COEFF(0.5, 224),    COEFF(-0.445, 224), COEFF(-0.055, 224) },

	};

	static const int bt2020[3][3] = {

		{ COEFF(0.2726, 219),  COEFF(0.6780, 219),  COEFF(0.0593, 219)  },

		{ COEFF(0.2627, 219),  COEFF(0.6780, 219),  COEFF(0.0593, 219)  },

		{ COEFF(-0.1396, 224), COEFF(-0.3604, 224), COEFF(0.5, 224)     },

		{ COEFF(0.5, 224),     COEFF(-0.4629, 224), COEFF(-0.0405, 224) },

		{ COEFF(0.5, 224),     COEFF(-0.4598, 224), COEFF(-0.0402, 224) },

	};

	bool full = tpg->real_quantization == V4L2_QUANTIZATION_FULL_RANGE;

	unsigned y_offset = full ? 0 : 16;