My eye fell on this wrong coefficient in the bt2020_full matrix.
The bt2020 matrix (limited range) is OK.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
diff --git a/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c b/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
index 3dd22da7e17d..a772976cfe26 100644
--- a/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
+++ b/drivers/media/common/v4l2-tpg/v4l2-tpg-core.c
@@ -615,7 +615,7 @@ static void color_to_ycbcr(struct tpg_data *tpg, int r, int g, int b,
static const int bt2020_full[3][3] = {
{ COEFF(0.2627, 255), COEFF(0.6780, 255), COEFF(0.0593, 255) },
{ COEFF(-0.1396, 255), COEFF(-0.3604, 255), COEFF(0.5, 255) },
- { COEFF(0.5, 255), COEFF(-0.4698, 255), COEFF(-0.0402, 255) },
+ { COEFF(0.5, 255), COEFF(-0.4598, 255), COEFF(-0.0402, 255) },
};
static const int bt2020c[4] = {
COEFF(1.0 / 1.9404, 224), COEFF(1.0 / 1.5816, 224),
